1
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Ojeda V, Serra B, Lagares C, Rojo-Francàs E, Sellés M, Marco-Herrero E, García E, Farré M, Arenas C, Abelló P, Mestres F. Interannual fluctuations in connectivity among crab populations (Liocarcinus depurator) along the Atlantic-Mediterranean transition. Sci Rep 2022; 12:9797. [PMID: 35697727 PMCID: PMC9192654 DOI: 10.1038/s41598-022-13941-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 05/30/2022] [Indexed: 11/18/2022] Open
Abstract
An interesting evolutionary question that still remains open is the connectivity between marine populations. Marine currents can favour the dispersal of larvae or adults, but they can also produce eddies and gyres generating oceanographic fronts, thus limiting gene flow. To address this subject, we selected the Atlantic-Mediterranean transition, where several fronts are located: Gibraltar Strait (GS), Almeria-Oran Front (AOF) and Ibiza Channel (IC). Seven populations of the marine crab Liocarcinus depurator (Cadiz, West and East Alboran, Alacant, Valencia, Ebro Delta and North Catalonia) located along this transition were analysed in six consecutive years (2014–2019) using a fragment of the COI (Cytochrome Oxidase subunit I) gene. All sequences (966) belonged to two well defined haplogroups: ATL (most abundant in Atlantic waters) and MED (predominant in Mediterranean waters). Following a geographic variation, the frequency of ATL decreased significantly from Cadiz to North Catalonia. However, this variation presented steps due to the effect of oceanographic restrictions/fronts. Significant effects were recorded for GS (2015, 2017, 2018 and 2019), AOF (all years except 2018) and IC (2016). The intensity and precise location of these fronts changed over time. Multivariate analyses distinguished three main population groups: Cadiz, Alboran Sea and the remaining Mediterranean populations. These findings could be relevant to properly define Marine Protected Areas and for conservation and fisheries policies.
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Affiliation(s)
- Víctor Ojeda
- Dept. Genètica, Microbiologia i Estadística. Secció de Genètica Biomèdica, Evolució i Desenvolupament, Universitat de Barcelona, Av. Diagonal, 643, 08028, Barcelona, Spain.,IRBio (Institut de Recerca Per la Biodiversitat), Universitat de Barcelona, Barcelona, Spain
| | - Bruna Serra
- Dept. Genètica, Microbiologia i Estadística. Secció de Genètica Biomèdica, Evolució i Desenvolupament, Universitat de Barcelona, Av. Diagonal, 643, 08028, Barcelona, Spain.,IRBio (Institut de Recerca Per la Biodiversitat), Universitat de Barcelona, Barcelona, Spain
| | - Clàudia Lagares
- Dept. Genètica, Microbiologia i Estadística. Secció de Genètica Biomèdica, Evolució i Desenvolupament, Universitat de Barcelona, Av. Diagonal, 643, 08028, Barcelona, Spain.,IRBio (Institut de Recerca Per la Biodiversitat), Universitat de Barcelona, Barcelona, Spain
| | - Eva Rojo-Francàs
- Dept. Genètica, Microbiologia i Estadística. Secció de Genètica Biomèdica, Evolució i Desenvolupament, Universitat de Barcelona, Av. Diagonal, 643, 08028, Barcelona, Spain.,IRBio (Institut de Recerca Per la Biodiversitat), Universitat de Barcelona, Barcelona, Spain
| | - Maria Sellés
- Dept. Genètica, Microbiologia i Estadística. Secció de Genètica Biomèdica, Evolució i Desenvolupament, Universitat de Barcelona, Av. Diagonal, 643, 08028, Barcelona, Spain.,IRBio (Institut de Recerca Per la Biodiversitat), Universitat de Barcelona, Barcelona, Spain
| | | | - Encarnación García
- Instituto Español de Oceanografía - C.O. Murcia (IEO-CSIC), San Pedro del Pinatar, Spain
| | - Marc Farré
- Instituto Español de Oceanografía - C.O. Balears (IEO-CSIC), Palma de Mallorca, Spain.,Institut de Ciències del Mar (ICM-CSIC), Barcelona, Spain
| | - Concepció Arenas
- Dept. Genètica, Microbiologia i Estadística, Secció d'Estadística, Universitat de Barcelona, Barcelona, Spain
| | - Pere Abelló
- Institut de Ciències del Mar (ICM-CSIC), Barcelona, Spain
| | - Francesc Mestres
- Dept. Genètica, Microbiologia i Estadística. Secció de Genètica Biomèdica, Evolució i Desenvolupament, Universitat de Barcelona, Av. Diagonal, 643, 08028, Barcelona, Spain. .,IRBio (Institut de Recerca Per la Biodiversitat), Universitat de Barcelona, Barcelona, Spain.
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2
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David Wells RJ, Rooker JR, Addis P, Arrizabalaga H, Baptista M, Bearzi G, Fraile I, Lacoue-Labarthe T, Meese EN, Megalofonou P, Rosa R, Sobrino I, Sykes AV, Villanueva R. Regional patterns of δ 13C and δ 15N for European common cuttlefish ( Sepia officinalis) throughout the Northeast Atlantic Ocean and Mediterranean Sea. ROYAL SOCIETY OPEN SCIENCE 2021; 8:210345. [PMID: 34540247 PMCID: PMC8437227 DOI: 10.1098/rsos.210345] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 08/12/2021] [Indexed: 06/13/2023]
Abstract
Stable isotope compositions of carbon and nitrogen (expressed as δ 13C and δ 15N) from the European common cuttlefish (Sepia officinalis) were measured in order to evaluate the utility of using these natural tracers throughout the Northeast Atlantic Ocean and Mediterranean Sea (NEAO-MS). Mantle tissue was obtained from S. officinalis collected from 11 sampling locations spanning a wide geographical coverage in the NEAO-MS. Significant differences of both δ 13C and δ 15N values were found among S. officinalis samples relative to sampling location. δ 13C values did not show any discernable spatial trends; however, a distinct pattern of lower δ 15N values in the Mediterranean Sea relative to the NEAO existed. Mean δ 15N values of S. officinalis in the Mediterranean Sea averaged 2.5‰ lower than conspecifics collected in the NEAO and showed a decreasing eastward trend within the Mediterranean Sea with the lowest values in the most eastern sampling locations. Results suggest δ 15N may serve as a useful natural tracer for studies on the population structure of S. officinalis as well as other marine organisms throughout the NEAO-MS.
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Affiliation(s)
- R. J. David Wells
- Department of Marine Biology, Texas A&M University, 1001 Texas Clipper Road, Galveston, TX 77553, USA
- Department of Ecology and Conservation Biology, Texas A&M University, College Station, TX 77843, USA
| | - Jay R. Rooker
- Department of Marine Biology, Texas A&M University, 1001 Texas Clipper Road, Galveston, TX 77553, USA
- Department of Ecology and Conservation Biology, Texas A&M University, College Station, TX 77843, USA
| | - Piero Addis
- Department of Environmental and Life Science, University of Cagliari, Via Fiorelli 1, 09126 Cagliari, Italy
| | - Haritz Arrizabalaga
- AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Herrera Kaia-Portualdea z/g, 20110 Pasaia – Gipuzkoa, Spain
| | - Miguel Baptista
- Marine and Environmental Sciences Centre, Laboratorio Maritimo da Guia, Faculdade de Ciencias, Universidade de Lisboa, Avenida Nossa Senhora do Cabo, 939, 2750-374 Cascais, Portugal
| | - Giovanni Bearzi
- Dolphin Biology and Conservation, Cordenons, Pordenone, Italy
| | - Igaratza Fraile
- AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Herrera Kaia-Portualdea z/g, 20110 Pasaia – Gipuzkoa, Spain
| | - Thomas Lacoue-Labarthe
- LIttoral Environnement et Sociétés (LIENSs) – UMR 7266 Bâtiment ILE, 2, rue Olympe de Gouges, 17000 La Rochelle, France
| | - Emily N. Meese
- Department of Marine Biology, Texas A&M University, 1001 Texas Clipper Road, Galveston, TX 77553, USA
| | - Persefoni Megalofonou
- Department of Biology, National and Kapodistrian University of Athens, 15784 Athens, Greece
| | - Rui Rosa
- Marine and Environmental Sciences Centre, Laboratorio Maritimo da Guia, Faculdade de Ciencias, Universidade de Lisboa, Avenida Nossa Senhora do Cabo, 939, 2750-374 Cascais, Portugal
| | - Ignacio Sobrino
- Instituto Español de Oceanografía, Puerto Pesquero s/n, 11006, Cádiz, Spain
| | - Antonio V. Sykes
- Center of Marine Sciences, Universidade do Algarve Campus de Gambelas, 8005-139 Faro, Portugal
| | - Roger Villanueva
- Institut de Ciències del Mar (CSIC), Passeig Maritim, 37-49, 08003, Barcelona, Spain
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3
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González-Castellano I, González-López J, González-Tizón AM, Martínez-Lage A. Genetic diversity and population structure of the rockpool shrimp Palaemon elegans based on microsatellites: evidence for a cryptic species and differentiation across the Atlantic-Mediterranean transition. Sci Rep 2020; 10:10784. [PMID: 32612210 PMCID: PMC7329806 DOI: 10.1038/s41598-020-67824-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 06/15/2020] [Indexed: 11/09/2022] Open
Abstract
The rockpool shrimp Palaemon elegans is an ecologically important crustacean species within the European coastline fauna. In the present study, genetic diversity and population structure and connectivity were assessed by examining 21 polymorphic microsatellite loci at 13 sampling sites located along the natural distribution range. All localities showed similar levels of genetic variability. Significant deficits of heterozygosity were recorded, most likely due to the presence of null alleles. Genetic structure analyses revealed two clearly genetically distinct groups within P. elegans but without following any geographical or oceanographic basis. Thus, our results provided nuclear evidence for the existence of a Mediterranean cryptic species within P. elegans, highlighting the need to revise its taxonomic status. Regarding P. elegans sensu stricto, population structuring was reported across the Atlantic-Mediterranean transition area, where the Almería-Orán Front restricts the gene flow between the Atlantic and the Mediterranean population. Moreover, while population connectivity was suggested between all Mediterranean localities, some substructure was found within the Atlantic group. Canary Islands exhibited a weak but significant genetic differentiation from all Atlantic mainland localities, consistent with the isolation-by-distance pattern detected throughout the Atlantic population. Overall, all these findings provided new insights into the population biology of P. elegans complex.
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Affiliation(s)
- Inés González-Castellano
- Departamento de Biología and Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, 15071, A Coruña, Spain.
| | - Jorge González-López
- Departamento de Biología and Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, 15071, A Coruña, Spain
| | - Ana M González-Tizón
- Departamento de Biología and Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, 15071, A Coruña, Spain
| | - Andrés Martínez-Lage
- Departamento de Biología and Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, 15071, A Coruña, Spain.
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4
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Jenkins TL, Ellis CD, Triantafyllidis A, Stevens JR. Single nucleotide polymorphisms reveal a genetic cline across the north-east Atlantic and enable powerful population assignment in the European lobster. Evol Appl 2019; 12:1881-1899. [PMID: 31700533 PMCID: PMC6824076 DOI: 10.1111/eva.12849] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 07/09/2019] [Accepted: 07/11/2019] [Indexed: 12/11/2022] Open
Abstract
Resolving stock structure is crucial for fisheries conservation to ensure that the spatial implementation of management is commensurate with that of biological population units. To address this in the economically important European lobster (Homarus gammarus), genetic structure was explored across the species' range using a small panel of single nucleotide polymorphisms (SNPs) previously isolated from restriction-site-associated DNA sequencing; these SNPs were selected to maximize differentiation at a range of both broad and fine scales. After quality control and filtering, 1,278 lobsters from 38 sampling sites were genotyped at 79 SNPs. The results revealed a pronounced phylogeographic break between the Atlantic and Mediterranean basins, while structure within the Mediterranean was also apparent, partitioned between lobsters from the central Mediterranean and the Aegean Sea. In addition, a genetic cline across the north-east Atlantic was revealed using both putatively neutral and outlier SNPs, but the precise driver(s) of this clinal pattern-isolation by distance, secondary contact, selection across an environmental gradient, or a combination of these factors-remains undetermined. Putatively neutral markers differentiated lobsters from Oosterschelde, an estuary on the Dutch coast, a finding likely explained by past bottlenecks and limited gene flow with adjacent North Sea populations. Building on the findings of our spatial genetic analysis, we were able to test the accuracy of assigning lobsters at various spatial scales, including to basin of origin (Atlantic or Mediterranean), region of origin and sampling location. The predictive model assembled using 79 SNPs correctly assigned 99.7% of lobsters not used to build the model to their basin of origin, but accuracy decreased to region of origin and again to sampling location. These results are of direct relevance to managers of lobster fisheries and hatcheries, and provide the basis for a genetic tool for tracing the origin of European lobsters in the food supply chain.
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Affiliation(s)
- Tom L. Jenkins
- Department of Biosciences, College of Life and Environmental SciencesUniversity of ExeterExeterUK
| | - Charlie D. Ellis
- Department of Biosciences, College of Life and Environmental SciencesUniversity of ExeterExeterUK
- National Lobster HatcherySouth QuayPadstowUK
| | | | - Jamie R. Stevens
- Department of Biosciences, College of Life and Environmental SciencesUniversity of ExeterExeterUK
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5
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Langeneck J, Scarpa F, Maltagliati F, Sanna D, Barbieri M, Cossu P, Mikac B, Curini Galletti M, Castelli A, Casu M. A complex species complex: The controversial role of ecology and biogeography in the evolutionary history of
Syllis gracilis
Grube, 1840 (Annelida, Syllidae). J ZOOL SYST EVOL RES 2019. [DOI: 10.1111/jzs.12336] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
| | - Fabio Scarpa
- Dipartimento di Medicina Veterinaria Università degli Studi di Sassari Sassari Italy
| | | | - Daria Sanna
- Dipartimento di Scienze Biomediche Università degli Studi di Sassari Sassari Italy
| | | | - Piero Cossu
- Dipartimento di Medicina Veterinaria Università degli Studi di Sassari Sassari Italy
| | - Barbara Mikac
- Centro Interdipartimentale di Ricerca per le Scienze Ambientali (CIRSA) Università di Bologna Ravenna Italy
| | - Marco Curini Galletti
- Dipartimento di Medicina Veterinaria Università degli Studi di Sassari Sassari Italy
| | | | - Marco Casu
- Dipartimento di Medicina Veterinaria Università degli Studi di Sassari Sassari Italy
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6
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Population co-divergence in common cuttlefish (Sepia officinalis) and its dicyemid parasite in the Mediterranean Sea. Sci Rep 2019; 9:14300. [PMID: 31586090 PMCID: PMC6778094 DOI: 10.1038/s41598-019-50555-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 09/12/2019] [Indexed: 12/22/2022] Open
Abstract
Population structure and biogeography of marine organisms are formed by different drivers than in terrestrial organisms. Yet, very little information is available even for common marine organisms and even less for their associated parasites. Here we report the first analysis of population structure of both a cephalopod host (Sepia officinalis) and its dicyemid parasite, based on a homologous molecular marker (cytochrome oxidase I). We show that the population of common cuttlefish in the Mediterranean area is fragmented into subpopulations, with some areas featuring restricted level of gene flow. Amongst the studied areas, Sardinia was genetically the most diverse and Cyprus the most isolated. At a larger scale, across the Mediterranean, the population structure of the parasite shows co-diversification pattern with its host, but a slower rate of diversification. Differences between the two counterparts are more obvious at a finer scale, where parasite populations show increased level of fragmentation and lower local diversities. This discrepancy can be caused by local extinctions and replacements taking place more frequently in the dicyemid populations, due to their parasitic lifestyle.
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7
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Morse P, Kjeldsen SR, Meekan MG, Mccormick MI, Finn JK, Huffard CL, Zenger KR. Genome-wide comparisons reveal a clinal species pattern within a holobenthic octopod-the Australian Southern blue-ringed octopus, Hapalochlaena maculosa (Cephalopoda: Octopodidae). Ecol Evol 2018; 8:2253-2267. [PMID: 29468041 PMCID: PMC5817145 DOI: 10.1002/ece3.3845] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 12/05/2017] [Accepted: 12/28/2017] [Indexed: 12/12/2022] Open
Abstract
The southern blue-ringed octopus, Hapalochlaena maculosa (Hoyle, 1883) lacks a planktonic dispersal phase, yet ranges across Australia's southern coastline. This species' brief and holobenthic life history suggests gene flow might be limited, leaving distant populations prone to strong genetic divergence. This study used 17,523 genome-wide SNP loci to investigate genetic structuring and local adaptation patterns of H. maculosa among eight sampling sites along its reported range. Within sites, interrelatedness was very high, consistent with the limited dispersal of this taxon. However, inbreeding coefficients were proportionally lower among sites where substructuring was not detected, suggesting H. maculosa might possess a mechanism for inbreeding avoidance. Genetic divergence was extremely high among all sites, with the greatest divergence observed between both ends of the distribution, Fremantle, WA, and Stanley, TAS. Genetic distances closely followed an isolation by geographic distance pattern. Outlier analyses revealed distinct selection signatures at all sites, with the strongest divergence reported between Fremantle and the other Western Australian sites. Phylogenetic reconstructions using the described sister taxon H. fasciata (Hoyle, 1886) further supported that the genetic divergence between distal H. maculosa sites in this study was equivalent to that of between established heterospecifics within this genus. However, it is advocated that taxonomic delineations within this species should be made with caution. These data indicate that H. maculosa forms a clinal species pattern across its geographic range, with gene flow present through allele sharing between adjacent populations. Morphological investigations are recommended for a robust resolution of the taxonomic identity and ecotype boundaries of this species.
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Affiliation(s)
- Peter Morse
- Australian Institute of Marine ScienceUWA Oceans InstituteCrawleyWAAustralia
- College of Science and EngineeringJames Cook UniversityTownsvilleQldAustralia
| | - Shannon R. Kjeldsen
- College of Science and EngineeringJames Cook UniversityTownsvilleQldAustralia
| | - Mark G. Meekan
- Australian Institute of Marine ScienceUWA Oceans InstituteCrawleyWAAustralia
| | - Mark I. Mccormick
- College of Science and EngineeringJames Cook UniversityTownsvilleQldAustralia
| | | | - Christine L. Huffard
- Monterey Bay Aquarium Research InstituteMoss LandingCAUSA
- California Academy of SciencesSan FranciscoCAUSA
| | - Kyall R. Zenger
- College of Science and EngineeringJames Cook UniversityTownsvilleQldAustralia
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8
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Guo B, Guan A, Qi P, Lv Z, Wu C, Xu K, Ping H, Shi H. Parentage determination of cuttlefish (Sepiella japonica) based on microsatellite DNA markers. ANIM BIOL 2018. [DOI: 10.1163/15707563-00002543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Abstract
Microsatellite markers have been used for more than ten years to elucidate parentage relationships in aquaculture species. This study aimed to assess the feasibility of utilizing microsatellite markers for parentage determination in cuttlefish (Sepiella japonica) using simulations and real data analysis. We developed a panel of eight microsatellite markers in our lab. These markers were highly polymorphic with a mean of 10.1 alleles and an average expected heterozygosity value of 0.809. Using five simple sequence repeat markers, an allele frequency data-based simulation indicated that the combined exclusion probability values would be over 99%, whereas the rate of assignment success for the real data set was 91.8%. Mismatches caused by null alleles and scoring errors at microsatellite loci were the major reasons for the discrepancies between the simulations and real data analysis. We concluded that microsatellite markers can be used as a powerful tool to evaluate the effectiveness of enhancement and release programs for S. japonica.
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Affiliation(s)
- Baoying Guo
- 1National Engineering Research Center of Maricultural Facilities of China, College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316004, PR China
| | - Ao Guan
- 1National Engineering Research Center of Maricultural Facilities of China, College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316004, PR China
| | - Pengzhi Qi
- 1National Engineering Research Center of Maricultural Facilities of China, College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316004, PR China
| | - Zhenming Lv
- 1National Engineering Research Center of Maricultural Facilities of China, College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316004, PR China
| | - Changwen Wu
- 1National Engineering Research Center of Maricultural Facilities of China, College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316004, PR China
| | - Kaida Xu
- 2Scientific Observing and Experimental Station of Fishery Resources for Key Fishing Grounds, MOA, Key Laboratory of Sustainable Utilization of Technology Research for Fisheries Resources of Zhejiang Province, Zhoushan 316021, PR China
| | - Hongling Ping
- 3Zhejiang Province Key Lab of Mariculture and Enhancement, Marine Fisheries Research Institute of Zhejiang, Zhoushan 316021, PR China
| | - Huilai Shi
- 3Zhejiang Province Key Lab of Mariculture and Enhancement, Marine Fisheries Research Institute of Zhejiang, Zhoushan 316021, PR China
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9
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Guidarelli G, Colangelo P, de Francesco MC, Nicolosi P, Meloro C, Loy A. Phenotypic Changes Across a Geographic Gradient: The Case of Three Sympatric Dolphin Species. Evol Biol 2017. [DOI: 10.1007/s11692-017-9435-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Catarino D, Stefanni S, Jorde PE, Menezes GM, Company JB, Neat F, Knutsen H. The role of the Strait of Gibraltar in shaping the genetic structure of the Mediterranean Grenadier, Coryphaenoides mediterraneus, between the Atlantic and Mediterranean Sea. PLoS One 2017; 12:e0174988. [PMID: 28459855 PMCID: PMC5411037 DOI: 10.1371/journal.pone.0174988] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Accepted: 03/17/2017] [Indexed: 11/18/2022] Open
Abstract
Population genetic studies of species inhabiting the deepest parts of the oceans are still scarce and only until recently we started to understand how oceanographic processes and topography affect dispersal and gene flow patterns. The aim of this study was to investigate the spatial population genetic structure of the bathyal bony fish Coryphaenoides mediterraneus, with a focus on the Atlantic-Mediterranean transition. We used nine nuclear microsatellites and the mitochondrial cytochrome c oxidase I gene from 6 different sampling areas. No population genetic structure was found within Mediterranean with both marker types (mean ΦST = 0.0960, FST = -0.0003, for both P > 0.05). However, within the Atlantic a contrasting pattern of genetic structure was found for the mtDNA and nuclear markers (mean ΦST = 0.2479, P < 0.001; FST = -0.0001, P > 0.05). When comparing samples from Atlantic and Mediterranean they exhibited high and significant levels of genetic divergence (mean ΦST = 0.7171, FST = 0.0245, for both P < 0.001) regardless the genetic marker used. Furthermore, no shared haplotypes were found between Atlantic and Mediterranean populations. These results suggest very limited genetic exchange between Atlantic and Mediterranean populations of C. mediterraneus, likely due to the shallow bathymetry of the Strait of Gibraltar acting as a barrier to gene flow. This physical barrier not only prevents the direct interactions between the deep-living adults, but also must prevent interchange of pelagic early life stages between the two basins. According to Bayesian simulations it is likely that Atlantic and Mediterranean populations of C. mediterraneus were separated during the late Pleistocene, which is congruent with results for other deep-sea fish from the same region.
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Affiliation(s)
- Diana Catarino
- MARE – Marine and Environmental Sciences Centre, University of the Azores, Department of Oceanography and Fisheries, Horta, Azores, Portugal
- Department of Oceanography and Fisheries, University of the Azores, Horta, Azores, Portugal
| | | | - Per Erik Jorde
- Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences, University of Oslo, Oslo, Norway
| | - Gui M. Menezes
- MARE – Marine and Environmental Sciences Centre, University of the Azores, Department of Oceanography and Fisheries, Horta, Azores, Portugal
- Department of Oceanography and Fisheries, University of the Azores, Horta, Azores, Portugal
| | | | - Francis Neat
- Marine Scotland-Science, Marine Laboratory, Aberdeen, United Kingdom
| | - Halvor Knutsen
- Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences, University of Oslo, Oslo, Norway
- Institute of Marine Research, Flødevigen, Norway
- Centre for Coastal Research, University of Agder, Kristiansand, Norway
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11
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Fraija-Fernández N, Fernández M, Lehnert K, Raga JA, Siebert U, Aznar FJ. Long-Distance Travellers: Phylogeography of a Generalist Parasite, Pholeter gastrophilus, from Cetaceans. PLoS One 2017; 12:e0170184. [PMID: 28085945 PMCID: PMC5234839 DOI: 10.1371/journal.pone.0170184] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 12/30/2016] [Indexed: 11/22/2022] Open
Abstract
We studied the phylogeography and historical demography of the most generalist digenean from cetaceans, Pholeter gastrophilus, exploring the effects of isolation by distance, ecological barriers and hosts’ dispersal ability on the population structure of this parasite. The ITS2 rDNA, and the mitochondrial COI and ND1 from 68 individual parasites were analysed. Worms were collected from seven oceanic and coastal cetacean species from the south western Atlantic (SWA), central eastern Atlantic, north eastern Atlantic (NEA), and Mediterranean Sea. Pholeter gastrophilus was considered a single lineage because reciprocal monophyly was not detected in the ML cladogram of all individuals, and sequence variability was <1% for mtDNA and 0% for ITS2. These results rule out a recent suggestion that P. gastrophilus would actually be a cryptic-species complex. The genetic cohesion of P. gastrophilus could rely on the extensive exploitation of wide-ranging and highly mobile cetaceans, with a putative secondary role, if any, of intermediate hosts. Unique haplotypes were detected in SWA and NEA, and an AMOVA revealed significant population structure associated to the genetic variation in these regions. The Equator possibly acts as a significant geographical barrier for cetacean movements, possibly limiting gene flow between northern and southern populations of P. gastrophilus. A partial Mantel tests revealed that the significant isolation of NEA populations resulted from geographic clustering. Apparently, the limited mobility of cetaceans used by P. gastrophilus as definitive hosts in this region, coupled with oceanographic barriers and a patchy distribution of potential intermediate hosts could contribute to significant ecological isolation of P. gastrophilus in NEA. Rather unexpectedly, no genetic differentiation was found in the Mediterranean samples of this parasite. Historical demographic analyses suggested a recent population expansion of P. gastrophilus in the Atlantic Ocean, perhaps linked to initial association and subsequent spreading in cetaceans.
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Affiliation(s)
- Natalia Fraija-Fernández
- Cavanilles Institute of Biodiversity and Evolutionary Biology, Science Park, University of Valencia, Paterna, Valencia, Spain
- * E-mail:
| | - Mercedes Fernández
- Cavanilles Institute of Biodiversity and Evolutionary Biology, Science Park, University of Valencia, Paterna, Valencia, Spain
| | - Kristina Lehnert
- Institute for Terrestrial and Aquatic Wildlife Research, University of Veterinary Medicine Hannover, Werftstrasse, Büsum, Germany
| | - Juan Antonio Raga
- Cavanilles Institute of Biodiversity and Evolutionary Biology, Science Park, University of Valencia, Paterna, Valencia, Spain
| | - Ursula Siebert
- Institute for Terrestrial and Aquatic Wildlife Research, University of Veterinary Medicine Hannover, Werftstrasse, Büsum, Germany
| | - Francisco Javier Aznar
- Cavanilles Institute of Biodiversity and Evolutionary Biology, Science Park, University of Valencia, Paterna, Valencia, Spain
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12
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Sales JBDL, Rodrigues-Filho LFDS, Ferreira YDS, Carneiro J, Asp NE, Shaw PW, Haimovici M, Markaida U, Ready J, Schneider H, Sampaio I. Divergence of cryptic species of Doryteuthis plei Blainville, 1823 (Loliginidae, Cephalopoda) in the Western Atlantic Ocean is associated with the formation of the Caribbean Sea. Mol Phylogenet Evol 2017; 106:44-54. [DOI: 10.1016/j.ympev.2016.09.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 08/30/2016] [Accepted: 09/14/2016] [Indexed: 10/21/2022]
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13
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Early Mode of Life and Hatchling Size in Cephalopod Molluscs: Influence on the Species Distributional Ranges. PLoS One 2016; 11:e0165334. [PMID: 27829039 PMCID: PMC5102429 DOI: 10.1371/journal.pone.0165334] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 10/10/2016] [Indexed: 11/19/2022] Open
Abstract
Cephalopods (nautiluses, cuttlefishes, squids and octopuses) exhibit direct development and display two major developmental modes: planktonic and benthic. Planktonic hatchlings are small and go through some degree of morphological changes during the planktonic phase, which can last from days to months, with ocean currents enhancing their dispersal capacity. Benthic hatchlings are usually large, miniature-like adults and have comparatively reduced dispersal potential. We examined the relationship between early developmental mode, hatchling size and species latitudinal distribution range of 110 species hatched in the laboratory, which represent 13% of the total number of live cephalopod species described to date. Results showed that species with planktonic hatchlings reach broader distributional ranges in comparison with species with benthic hatchlings. In addition, squids and octopods follow an inverse relationship between hatchling size and species latitudinal distribution. In both groups, species with smaller hatchlings have broader latitudinal distribution ranges. Thus, squid and octopod species with larger hatchlings have latitudinal distributions of comparatively minor extension. This pattern also emerges when all species are grouped by genus (n = 41), but was not detected for cuttlefishes, a group composed mainly of species with large and benthic hatchlings. However, when hatchling size was compared to adult size, it was observed that the smaller the hatchlings, the broader the latitudinal distributional range of the species for cuttlefishes, squids and octopuses. This was also valid for all cephalopod species with benthic hatchlings pooled together. Hatchling size and associated developmental mode and dispersal potential seem to be main influential factors in determining the distributional range of cephalopods.
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14
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Garcia-Cisneros A, Palacín C, Ben Khadra Y, Pérez-Portela R. Low genetic diversity and recent demographic expansion in the red starfish Echinaster sepositus (Retzius 1816). Sci Rep 2016; 6:33269. [PMID: 27627860 PMCID: PMC5024105 DOI: 10.1038/srep33269] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Accepted: 08/23/2016] [Indexed: 12/31/2022] Open
Abstract
Understanding the phylogeography and genetic structure of populations and the processes responsible of patterns therein is crucial for evaluating the vulnerability of marine species and developing management strategies. In this study, we explore how past climatic events and ongoing oceanographic and demographic processes have shaped the genetic structure and diversity of the Atlanto-Mediterranean red starfish Echinaster sepositus. The species is relatively abundant in some areas of the Mediterranean Sea, but some populations have dramatically decreased over recent years due to direct extraction for ornamental aquariums and souvenir industries. Analyses across most of the distribution range of the species based on the mitochondrial cytochrome c oxidase subunit I gene and eight microsatellite loci revealed very low intraspecific genetic diversity. The species showed a weak genetic structure within marine basins despite the a priori low dispersal potential of its lecithotrophic larva. Our results also revealed a very recent demographic expansion across the distribution range of the species. The genetic data presented here indicate that the species might be highly vulnerable, due to its low intraspecific genetic diversity.
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Affiliation(s)
- Alex Garcia-Cisneros
- Animal Biology Department and Biodiversity Research Institute (IRBIO), Barcelona University, Avda. Diagonal, 643, Barcelona, Spain.,Center of Advanced Studies of Blanes (CSIC-CEAB), Accès cala St. Francesc, 14, Blanes, Spain
| | - Creu Palacín
- Animal Biology Department and Biodiversity Research Institute (IRBIO), Barcelona University, Avda. Diagonal, 643, Barcelona, Spain
| | - Yousra Ben Khadra
- Laboratoire de Recherche Génétique, Biodiversité et Valorisation des Bioressources, Institut Supérieur de Biotechnologie de Monastir, Av. Tahar Haddad, 5000, Monastir, Tunisia
| | - Rocío Pérez-Portela
- Center of Advanced Studies of Blanes (CSIC-CEAB), Accès cala St. Francesc, 14, Blanes, Spain
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15
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Population genetics of the common long-armed octopus Octopus minor (Sasaki, 1920) (Cephalopoda: Octopoda) in Chinese waters based on microsatellite analysis. BIOCHEM SYST ECOL 2016. [DOI: 10.1016/j.bse.2016.03.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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16
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De Luca D, Catanese G, Procaccini G, Fiorito G. Octopus vulgaris (Cuvier, 1797) in the Mediterranean Sea: Genetic Diversity and Population Structure. PLoS One 2016; 11:e0149496. [PMID: 26881847 PMCID: PMC4755602 DOI: 10.1371/journal.pone.0149496] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Accepted: 02/02/2016] [Indexed: 11/22/2022] Open
Abstract
The common octopus, Octopus vulgaris Cuvier 1797, is a largely exploited cephalopod species in the Mediterranean Sea and the Atlantic Ocean, as well as along the coasts of Africa, Brazil and Japan, where its taxonomic identity is still debated. The assessment of its genetic structure is a pressing need to correctly manage the resource and to avoid overfishing and collapsing of local stocks. Here we analysed genetic variation and population structure of O. vulgaris using thirteen microsatellite loci in seven sampling localities from the Mediterranean Sea and one from the Atlantic Ocean. We also used a DNA barcoding approach by COI gene fragment to understand the phylogenetic relationships among the specimens here investigated and the ones whose sequences are available in literature. Our results reveal high levels of allelic richness and moderate heterozygosity in all samples investigated, and a pronounced differentiation of the Atlantic and Sicilian specimens. This latter aspect seems to support the isolation of the biota within the Strait of Messina. A certain degree of differentiation was detected among the other geographic samples within the Mediterranean Sea, which is more compatible with an island model than isolation by distance. The occurrence of null alleles affected more genetic diversity indices than population structure estimations. This study provides new insights about the genetic diversity and structure of O. vulgaris in the area of interest, which can be used as guidelines for a fisheries management perspective.
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Affiliation(s)
- Daniele De Luca
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Napoli, Italy
- * E-mail:
| | - Gaetano Catanese
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Napoli, Italy
| | | | - Graziano Fiorito
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121, Napoli, Italy
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17
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Catarino D, Knutsen H, Veríssimo A, Olsen EM, Jorde PE, Menezes G, Sannæs H, Stanković D, Company JB, Neat F, Danovaro R, Dell'Anno A, Rochowski B, Stefanni S. The Pillars of Hercules as a bathymetric barrier to gene flow promoting isolation in a global deep-sea shark (Centroscymnus coelolepis). Mol Ecol 2015; 24:6061-79. [PMID: 26547144 DOI: 10.1111/mec.13453] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 10/29/2015] [Accepted: 11/02/2015] [Indexed: 11/26/2022]
Abstract
Knowledge of the mechanisms limiting connectivity and gene flow in deep-sea ecosystems is scarce, especially for deep-sea sharks. The Portuguese dogfish (Centroscymnus coelolepis) is a globally distributed and near threatened deep-sea shark. C. coelolepis population structure was studied using 11 nuclear microsatellite markers and a 497-bp fragment from the mtDNA control region. High levels of genetic homogeneity across the Atlantic (Φ(ST) = -0.0091, F(ST) = 0.0024, P > 0.05) were found suggesting one large population unit at this basin. The low levels of genetic divergence between Atlantic and Australia (Φ(ST) = 0.0744, P < 0.01; F(ST) = 0.0015, P > 0.05) further suggested that this species may be able to maintain some degree of genetic connectivity even across ocean basins. In contrast, sharks from the Mediterranean Sea exhibited marked genetic differentiation from all other localities studied (Φ(ST) = 0.3808, F(ST) = 0.1149, P < 0.001). This finding suggests that the shallow depth of the Strait of Gibraltar acts as a barrier to dispersal and that isolation and genetic drift may have had an important role shaping the Mediterranean shark population over time. Analyses of life history traits allowed the direct comparison among regions providing a complete characterization of this shark's populations. Sharks from the Mediterranean had markedly smaller adult body size and size at maturity compared to Atlantic and Pacific individuals. Together, these results suggest the existence of an isolated and unique population of C. coelolepis inhabiting the Mediterranean that most likely became separated from the Atlantic in the late Pleistocene.
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Affiliation(s)
- Diana Catarino
- MARE-Marine and Environmental Sciences Centre, Department of Oceanography and Fisheries, University of the Azores, Rua Prof. Dr. Frederico Machado, Horta, Azores, Portugal.,IMAR-Institute of Marine Research, Department of Oceanography and Fisheries, University of the Azores, Rua Prof. Dr. Frederico Machado, Horta, Azores, Portugal
| | - Halvor Knutsen
- Institute of Marine Research (IMR), Flødevigen, N-4817 His, Norway.,University of Agder, Kristiansand, N-4604, Norway.,Department of Biosciences, University of Oslo, Centre for Ecological and Evolutionary Synthesis (CEES), PO Box 1066 Blindern, Oslo, N-0316, Norway
| | - Ana Veríssimo
- CIBIO-U.P., Centro de Investigação em Biodiversidade e Recursos Genéticos, Campus Agrário de Vairão, Rua Padre Armando Quintas, Vairão, 4485-661, Portugal.,College of William and Mary, Virginia Institute of Marine Science, Route 1208, Greate Road, Gloucester Point, 23062, VA, USA
| | - Esben Moland Olsen
- Institute of Marine Research (IMR), Flødevigen, N-4817 His, Norway.,University of Agder, Kristiansand, N-4604, Norway.,Department of Biosciences, University of Oslo, Centre for Ecological and Evolutionary Synthesis (CEES), PO Box 1066 Blindern, Oslo, N-0316, Norway
| | - Per Erik Jorde
- Department of Biosciences, University of Oslo, Centre for Ecological and Evolutionary Synthesis (CEES), PO Box 1066 Blindern, Oslo, N-0316, Norway
| | - Gui Menezes
- MARE-Marine and Environmental Sciences Centre, Department of Oceanography and Fisheries, University of the Azores, Rua Prof. Dr. Frederico Machado, Horta, Azores, Portugal.,IMAR-Institute of Marine Research, Department of Oceanography and Fisheries, University of the Azores, Rua Prof. Dr. Frederico Machado, Horta, Azores, Portugal
| | - Hanne Sannæs
- Institute of Marine Research (IMR), Flødevigen, N-4817 His, Norway
| | - David Stanković
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, Trieste, 34127, Italy
| | - Joan Baptista Company
- Institut de Ciències del Mar, CSIC, Passeig Marítim de la Barceloneta 37-49, Barcelona, 08003, Spain
| | - Francis Neat
- Marine Laboratory, Marine Scotland-Science, PO Box 101, 375 Victoria Road, Aberdeen, AB11 9DB, UK
| | - Roberto Danovaro
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Ancona, 60131, Italy.,Stazione Zoologica Anton Dohrn, Villa Comunale, Naples, Italy
| | - Antonio Dell'Anno
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, Ancona, 60131, Italy
| | - Bastien Rochowski
- School of BioSciences, The University of Melbourne, Parkville, Vic., 3010, Australia
| | - Sergio Stefanni
- IMAR-Institute of Marine Research, Department of Oceanography and Fisheries, University of the Azores, Rua Prof. Dr. Frederico Machado, Horta, Azores, Portugal.,CNR-ISSIA, Via de Marini 6, Genova, 16149, Italy
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18
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MILLÁN-MÁRQUEZ ANAM, SALINAS-ZAVALA CÉSAR, CRUZ PEDRO, PEARSE DEVONE. Isolation and characterization of microsatellites for jumbo squid Dosidicus gigas (Ommastrephidae). J Genet 2015. [DOI: 10.1007/s12041-014-0361-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Madsen ML, Nelson RJ, Fevolden SE, Christiansen JS, Præbel K. Population genetic analysis of Euro-Arctic polar cod Boreogadus saida suggests fjord and oceanic structuring. Polar Biol 2015. [DOI: 10.1007/s00300-015-1812-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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20
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Williams RC, Jackson BC, Duvaux L, Dawson DA, Burke T, Sinclair W. The genetic structure ofNautilus pompiliuspopulations surrounding Australia and the Philippines. Mol Ecol 2015; 24:3316-28. [DOI: 10.1111/mec.13255] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 05/21/2015] [Accepted: 05/27/2015] [Indexed: 01/25/2023]
Affiliation(s)
- Rachel C. Williams
- Centre for Wildlife Conservation; University of Cumbria; Ambleside LA22 9BJ UK
- Department of Animal and Plant Sciences; NERC Biomolecular Analysis Facility; University of Sheffield; Sheffield S10 2TN UK
| | - Benjamin C. Jackson
- Department of Animal and Plant Sciences; University of Sheffield; Sheffield S10 2TN UK
| | - Ludovic Duvaux
- Department of Animal and Plant Sciences; University of Sheffield; Sheffield S10 2TN UK
| | - Deborah A. Dawson
- Department of Animal and Plant Sciences; NERC Biomolecular Analysis Facility; University of Sheffield; Sheffield S10 2TN UK
| | - Terry Burke
- Department of Animal and Plant Sciences; NERC Biomolecular Analysis Facility; University of Sheffield; Sheffield S10 2TN UK
| | - William Sinclair
- Centre for Wildlife Conservation; University of Cumbria; Ambleside LA22 9BJ UK
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21
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Past and present drivers of population structure in a small coastal fish, the European long snouted seahorse Hippocampus guttulatus. CONSERV GENET 2015. [DOI: 10.1007/s10592-015-0728-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Genetic diversity and population structure of Sepia officinalis from the Tunisian cost revealed by mitochondrial COI sequences. Mol Biol Rep 2014; 42:77-86. [DOI: 10.1007/s11033-014-3743-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2013] [Accepted: 05/24/2014] [Indexed: 10/24/2022]
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23
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De Luca D, Catanese G, Procaccini G, Fiorito G. An integration of historical records and genetic data to the assessment of global distribution and population structure in Octopus vulgaris. Front Ecol Evol 2014. [DOI: 10.3389/fevo.2014.00055] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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24
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Microsatellite loci for studies of the common cuttlefish, Sepia officinalis. CONSERV GENET RESOUR 2014. [DOI: 10.1007/s12686-014-0191-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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25
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Allcock AL, Lindgren A, Strugnell J. The contribution of molecular data to our understanding of cephalopod evolution and systematics: a review. J NAT HIST 2014. [DOI: 10.1080/00222933.2013.825342] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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26
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Rodhouse PGK, Pierce GJ, Nichols OC, Sauer WHH, Arkhipkin AI, Laptikhovsky VV, Lipiński MR, Ramos JE, Gras M, Kidokoro H, Sadayasu K, Pereira J, Lefkaditou E, Pita C, Gasalla M, Haimovici M, Sakai M, Downey N. Environmental effects on cephalopod population dynamics: implications for management of fisheries. ADVANCES IN MARINE BIOLOGY 2014; 67:99-233. [PMID: 24880795 DOI: 10.1016/b978-0-12-800287-2.00002-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Cephalopods are a relatively small class of molluscs (~800 species), but they support some large industrial scale fisheries and numerous small-scale, local, artisanal fisheries. For several decades, landings of cephalopods globally have grown against a background of total finfish landings levelling off and then declining. There is now evidence that in recent years, growth in cephalopod landings has declined. The commercially exploited cephalopod species are fast-growing, short-lived ecological opportunists. Annual variability in abundance is strongly influenced by environmental variability, but the underlying causes of the links between environment and population dynamics are poorly understood. Stock assessment models have recently been developed that incorporate environmental processes that drive variability in recruitment, distribution and migration patterns. These models can be expected to improve as more, and better, data are obtained on environmental effects and as techniques for stock identification improve. A key element of future progress will be improved understanding of trophic dynamics at all phases in the cephalopod life cycle. In the meantime, there is no routine stock assessment in many targeted fisheries or in the numerous by-catch fisheries for cephalopods. There is a particular need for a precautionary approach in these cases. Assessment in many fisheries is complicated because cephalopods are ecological opportunists and stocks appear to have benefited from the reduction of key predator by overexploitation. Because of the complexities involved, ecosystem-based fisheries management integrating social, economic and ecological considerations is desirable for cephalopod fisheries. An ecological approach to management is routine in many fisheries, but to be effective, good scientific understanding of the relationships between the environment, trophic dynamics and population dynamics is essential. Fisheries and the ecosystems they depend on can only be managed by regulating the activities of the fishing industry, and this requires understanding the dynamics of the stocks they exploit.
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Affiliation(s)
| | - Graham J Pierce
- Oceanlab, University of Aberdeen, Newburgh, Aberdeenshire, United Kingdom; CESAM & Departamento de Biologia, Universidade de Aveiro, Aveiro, Portugal
| | - Owen C Nichols
- School for Marine Science and Technology, University of Massachusetts - Dartmouth, Fairhaven, Massachusetts, USA; Center for Coastal Studies, Provincetown, Massachusetts, USA
| | - Warwick H H Sauer
- Department of Ichthyology and Fisheries Science, Rhodes University, Grahamstown, South Africa
| | | | | | - Marek R Lipiński
- Department of Ichthyology and Fisheries Science, Rhodes University, Grahamstown, South Africa
| | - Jorge E Ramos
- Institute for Marine and Antarctic Studies, Marine Research Laboratories Taroona, Nubeena Crescent, Taroona, Tasmania, Australia
| | - Michaël Gras
- Université de Caen Basse-Normandie, Institut de Biologie Fondamentale et Appliquée Department, UMR BOREA: Biologie des ORganismes et des Ecosystèmes Aquatiques, Esplanade de la paix, CS 14032, Caen, France; BOREA, UMR CNRS7208, IRD207, UPMC, MNHN, UCBN, Caen, France
| | - Hideaki Kidokoro
- Japan Sea National Fisheries Research, Institute, Fisheries Research Agency, Suido-cho, Niigata, Japan
| | - Kazuhiro Sadayasu
- Marine Fisheries Research and Development Center, Fisheries Research Agency, Yokohama, Kanagawa, Japan
| | - João Pereira
- Instituto de Investigação das Pescas e do Mar (IPIMAR), Lisboa, Portugal
| | - Evgenia Lefkaditou
- Helenic Centre for Marine Research, Aghios Kosmas, Hellinikon, Athens, Greece
| | - Cristina Pita
- Oceanlab, University of Aberdeen, Newburgh, Aberdeenshire, United Kingdom; CESAM & Departamento de Biologia, Universidade de Aveiro, Aveiro, Portugal
| | - Maria Gasalla
- Fisheries Ecosystems Laboratory, Oceanographic Institute, University of São Paulo, São Paulo, Brazil
| | - Manuel Haimovici
- Institute of Oceanography, Federal University of Rio Grande, CEP, Rio Grande, Brazil
| | - Mitsuo Sakai
- National Research Institute of Far Seas Fisheries, Shizuoka, Japan
| | - Nicola Downey
- Department of Ichthyology and Fisheries Science, Rhodes University, Grahamstown, South Africa
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27
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Sales JBDL, Shaw PW, Haimovici M, Markaida U, Cunha DB, Ready J, Figueiredo-Ready WM, Schneider H, Sampaio I. New molecular phylogeny of the squids of the family Loliginidae with emphasis on the genus Doryteuthis Naef, 1912: Mitochondrial and nuclear sequences indicate the presence of cryptic species in the southern Atlantic Ocean. Mol Phylogenet Evol 2013; 68:293-9. [DOI: 10.1016/j.ympev.2013.03.027] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Revised: 03/23/2013] [Accepted: 03/25/2013] [Indexed: 12/01/2022]
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28
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Bloor ISM, Attrill MJ, Jackson EL. A review of the factors influencing spawning, early life stage survival and recruitment variability in the common cuttlefish (Sepia officinalis). ADVANCES IN MARINE BIOLOGY 2013; 65:1-65. [PMID: 23763891 DOI: 10.1016/b978-0-12-410498-3.00001-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Global landings of cephalopods (cuttlefish, squid and octopus) have increased dramatically over the past 50 years and now constitute almost 5% of the total world's fisheries production. At a time when landings of many traditional fin-fish stocks are continuing to experience a global decline as a result of over-exploitation, it is expected that fishing pressure on cephalopod stocks will continue to rise as the fishing industry switch their focus onto these non-quota species. However, long-term trends indicate that landings may have begun to plateau or even decrease. In European waters, cuttlefish are among the most important commercial cephalopod resource and are currently the highest yielding cephalopod group harvested in the north-east Atlantic, with the English Channel supporting the main fishery for this species. Recruitment variability in this short-lived species drives large fluctuations in landings. In order to provide sustainable management for Sepia officinalis populations, it is essential that we first have a thorough understanding of the ecology and life history of this species, in particular, the factors affecting spawning, early life stage (ELS) survival and recruitment variability. This review explores how and why such variability exists, starting with the impact of maternal effects (e.g. navigation, migration and egg laying), moving onto the direct impact of environmental variation on embryonic and ELSs and culminating on the impacts that these variations (maternal and environmental) have at a population level on annual recruitment success. Understanding these factors is critical to the effective management of expanding fisheries for this species.
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Affiliation(s)
- Isobel S M Bloor
- Marine Biological Association of the United Kingdom, The Laboratory, Citadel Hill, Plymouth, UK.
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29
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Sá-Pinto A, Branco MS, Alexandrino PB, Fontaine MC, Baird SJE. Barriers to gene flow in the marine environment: insights from two common intertidal limpet species of the Atlantic and Mediterranean. PLoS One 2012; 7:e50330. [PMID: 23239977 PMCID: PMC3519802 DOI: 10.1371/journal.pone.0050330] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Accepted: 10/17/2012] [Indexed: 11/25/2022] Open
Abstract
Knowledge of the scale of dispersal and the mechanisms governing gene flow in marine environments remains fragmentary despite being essential for understanding evolution of marine biota and to design management plans. We use the limpets Patella ulyssiponensis and Patella rustica as models for identifying factors affecting gene flow in marine organisms across the North-East Atlantic and the Mediterranean Sea. A set of allozyme loci and a fragment of the mitochondrial gene cytochrome C oxidase subunit I were screened for genetic variation through starch gel electrophoresis and DNA sequencing, respectively. An approach combining clustering algorithms with clinal analyses was used to test for the existence of barriers to gene flow and estimate their geographic location and abruptness. Sharp breaks in the genetic composition of individuals were observed in the transitions between the Atlantic and the Mediterranean and across southern Italian shores. An additional break within the Atlantic cluster separates samples from the Alboran Sea and Atlantic African shores from those of the Iberian Atlantic shores. The geographic congruence of the genetic breaks detected in these two limpet species strongly supports the existence of transpecific barriers to gene flow in the Mediterranean Sea and Northeastern Atlantic. This leads to testable hypotheses regarding factors restricting gene flow across the study area.
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Affiliation(s)
- Alexandra Sá-Pinto
- Centro de Investigação em Biodiversidade e Recursos Genéticos (CIBIO/UP), Campus Agrário de Vairão, Vairão, Portugal
- * E-mail: (ASP); (MCF)
| | - Madalena S. Branco
- Centro de Investigação em Biodiversidade e Recursos Genéticos (CIBIO/UP), Campus Agrário de Vairão, Vairão, Portugal
| | - Paulo B. Alexandrino
- Centro de Investigação em Biodiversidade e Recursos Genéticos (CIBIO/UP), Campus Agrário de Vairão, Vairão, Portugal
- Departamento de Zoologia-Antropologia, Faculdade de Ciências da Universidade do Porto, Porto, Portugal
- * E-mail: (ASP); (MCF)
| | - Michaël C. Fontaine
- Ecologie, Systématique et Evolution, Université Paris-Sud, Orsay, France
- CNRS, Orsay, France
- Ecoanthropology and Ethnobiology UMR 5145 CNRS-MNHN-Université Paris 7 Musée de l'Homme, Paris, France
| | - Stuart J. E. Baird
- Centro de Investigação em Biodiversidade e Recursos Genéticos (CIBIO/UP), Campus Agrário de Vairão, Vairão, Portugal
- Centre de Biologie et de Gestion des Populations (CBGP), Campus International de Baillarguet, CS 30 016, Montpelier/Lez, France
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30
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Moura AE, Natoli A, Rogan E, Hoelzel AR. Atypical panmixia in a European dolphin species (Delphinus delphis): implications for the evolution of diversity across oceanic boundaries. J Evol Biol 2012. [PMID: 23205921 DOI: 10.1111/jeb.12032] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Despite the scarcity of geographical barriers in the ocean environment, delphinid cetaceans often exhibit marked patterns of population structure on a regional scale. The European coastline is a prime example, with species exhibiting population structure across well-defined environmental boundaries. Here we undertake a comprehensive population genetic study on the European common dolphin (Delphinus delphis, based on 492 samples and 15 loci) and establish that this species shows exceptional panmixia across most of the study range. We found differentiation only between the eastern and western Mediterranean, consistent with earlier studies, and here use approximate Bayesian computations to explore different scenarios to explain the observed pattern. Our results suggest that a recent population bottleneck likely contributed significantly to the differentiation of the Eastern Mediterranean population (in Greek waters). This interpretation is consistent with independent census data that suggest a sharp population decline in the recent past. The implication is that an unperturbed population may currently show panmixia across the full study range. This exception to the more typical pattern of population structure seen for other regional dolphin species (and for common dolphin populations elsewhere in the world) suggests particular ecological or life-history traits distinct to this species in European waters.
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Affiliation(s)
- A E Moura
- School of Biological and Biomedical Sciences, Durham University, Durham, UK
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31
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Gosset CC, Bierne N. Differential introgression from a sister species explains high F
ST
outlier loci within a mussel species. J Evol Biol 2012. [DOI: 10.1111/jeb.12046] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- C. C. Gosset
- Université Montpellier 2; Montpellier Cedex France
- CNRS; Institut des Sciences de l'Evolution - ISEM UMR 5554; Station Méditerranéenne de l'Environnement Littoral; Sete France
| | - N. Bierne
- Université Montpellier 2; Montpellier Cedex France
- CNRS; Institut des Sciences de l'Evolution - ISEM UMR 5554; Station Méditerranéenne de l'Environnement Littoral; Sete France
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32
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Pérez-Portela R, Almada V, Turon X. Cryptic speciation and genetic structure of widely distributed brittle stars (Ophiuroidea) in Europe. ZOOL SCR 2012. [DOI: 10.1111/j.1463-6409.2012.00573.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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33
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Development of microsatellite markers to genetically differentiate populations of Octopus minor from Korea and China. Mol Biol Rep 2012; 39:8277-86. [DOI: 10.1007/s11033-012-1675-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2012] [Accepted: 05/29/2012] [Indexed: 10/28/2022]
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34
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Higgins KL, Burridge CP. Development of eight polymorphic microsatellite loci in the cephalopod Octopus pallidus. CONSERV GENET RESOUR 2011. [DOI: 10.1007/s12686-011-9483-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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35
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Ciannelli L, Knutsen H, Olsen EM, Espeland SH, Asplin L, Jelmert A, Knutsen JA, Stenseth NC. Small-scale genetic structure in a marine population in relation to water circulation and egg characteristics. Ecology 2011; 91:2918-30. [PMID: 21058552 DOI: 10.1890/09-1548.1] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Until the last decade it was assumed that most marine species have pronounced gene flow over vast areas, largely because of their potential for dispersal during early life stages. However, recent genetic, modeling, and field studies have shown that marine populations may be structured at scales that are inconsistent with extensive dispersal of eggs and larvae. Such findings have stimulated the birth of new studies explaining the mechanisms that promote population structure and isolation in the oceans, in the face of high potential for dispersal. Here we study the vertical and horizontal distribution of cod (Gadus morhua) eggs in relation to small-scale circulation and water column hydrography in a coastal location of southern Norway. Previous studies conducted in this region have shown that cod populations inhabiting fjord locations, which are on average 30 km apart, are genetically differentiated, a remarkable outcome considering that Atlantic cod have pelagic egg stages and long pelagic larval duration. We document that cod eggs are found in greater abundance in shallow water layers, which on average are flowing up the fjord (away from the open ocean), and in the inner portion of the fjord, which is subject to lower current speeds compared to the outer or mouth of the fjord. Eggs were found to be neutrally buoyant at shallow depths, a trait that also favors local retention, given the local circulation. The same patterns held during two environmentally contrasting years. These results strongly suggest that population structure of Atlantic cod is favored and maintained by a balance between water circulation and egg characteristics.
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Affiliation(s)
- Lorenzo Ciannelli
- College of Oceanic and Atmospheric Sciences, Oregon State University, 104 COAS Administration Building, Corvallis, Oregon 97331-5503, USA.
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36
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Zamborsky DJ, Nishiguchi MK. Phylogeographical patterns among Mediterranean sepiolid squids and their Vibrio symbionts: environment drives specificity among sympatric species. Appl Environ Microbiol 2011; 77:642-9. [PMID: 21075896 PMCID: PMC3020525 DOI: 10.1128/aem.02105-10] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2010] [Accepted: 11/02/2010] [Indexed: 11/20/2022] Open
Abstract
Bobtail squid from the genera Sepiola and Rondeletiola (Cephalopoda: Sepiolidae) form mutualistic associations with luminous Gram-negative bacteria (Gammaproteobacteria: Vibrionaceae) from the genera Vibrio and Photobacterium. Symbiotic bacteria proliferate inside a bilobed light organ until they are actively expelled by the host into the surrounding environment on a diel basis. This event results in a dynamic symbiont population with the potential to establish the symbiosis with newly hatched sterile (axenic) juvenile sepiolids. In this study, we examined the genetic diversity found in populations of sympatric sepiolid squid species and their symbionts by the use of nested clade analysis with multiple gene analyses. Variation found in the distribution of different species of symbiotic bacteria suggests a strong influence of abiotic factors in the local environment, affecting bacterial distribution among sympatric populations of hosts. These abiotic factors include temperature differences incurred by a shallow thermocline, as well as a lack of strong coastal water movement accompanied by seasonal temperature changes in overlapping niches. Host populations are stable and do not appear to have a significant role in the formation of symbiont populations relative to their distribution across the Mediterranean Sea. Additionally, all squid species examined (Sepiola affinis, S. robusta, S. ligulata, S. intermedia, and Rondeletiola minor) are genetically distinct from one another regardless of location and demonstrate very little intraspecific variation within species. These findings suggest that physical boundaries and distance in relation to population size, and not host specificity, are important factors in limiting or defining gene flow within sympatric marine squids and their associated bacterial symbionts in the Mediterranean Sea.
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Affiliation(s)
- D. J. Zamborsky
- Department of Biology, MSC 3AF, New Mexico State University, P.O. Box 30001, Las Cruces, New Mexico 88003-8001
| | - M. K. Nishiguchi
- Department of Biology, MSC 3AF, New Mexico State University, P.O. Box 30001, Las Cruces, New Mexico 88003-8001
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37
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KOKITA TOMOYUKI, NOHARA KENJI. Phylogeography and historical demography of the anadromous fish Leucopsarion petersii in relation to geological history and oceanography around the Japanese Archipelago. Mol Ecol 2010; 20:143-64. [DOI: 10.1111/j.1365-294x.2010.04920.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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38
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The influence of glacial epochs and habitat dependence on the diversity and phylogeography of a coastal dolphin species: Lagenorhynchus albirostris. CONSERV GENET 2010. [DOI: 10.1007/s10592-010-0075-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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39
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Genetic variation and population structure of the carpet shell clam Ruditapes decussatus along the Tunisian coast inferred from mtDNA and ITS1 sequence analysis. Biologia (Bratisl) 2010. [DOI: 10.2478/s11756-010-0069-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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40
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Babbucci M, Buccoli S, Cau A, Cannas R, Goñi R, Díaz D, Marcato S, Zane L, Patarnello T. Population structure, demographic history, and selective processes: contrasting evidences from mitochondrial and nuclear markers in the European spiny lobster Palinurus elephas (Fabricius, 1787). Mol Phylogenet Evol 2010; 56:1040-50. [PMID: 20510378 DOI: 10.1016/j.ympev.2010.05.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2010] [Revised: 05/12/2010] [Accepted: 05/13/2010] [Indexed: 11/30/2022]
Abstract
The European spiny lobster Palinurus elephas (Fabricius, 1787) is an ecologically and economically important species inhabiting a wide geographic range that extends from the North-east Atlantic and Azores to the Eastern Mediterranean. We investigated the population structure and evolutionary history of this species by both mitochondrial and microsatellite markers. Ten population samples covering a large part of the species distribution range (three samples from the Atlantic Ocean and seven from the Mediterranean Sea) were analyzed for a portion of the mitochondrial control region and seven polymorphic microsatellite loci. Both markers rejected the hypothesis of panmixia identifying two differentiated gene pools. The control region clearly distinguished the Atlantic and Mediterranean populations in two genetically separated groups. Microsatellites, also revealed two groups roughly associated to the Atlantic-Mediterranean separation, however, the Azores sample did not conform to this geographic scheme. Discrepancy between mitochondrial and nuclear markers emerged also when reconstructing the history of the species. Neutrality tests of the mitochondrial sequences indicated a departure from mutation-drift equilibrium that, combined to the mismatch analysis, pointed toward a sudden population expansion in both Atlantic and Mediterranean gene pools. Unexpectedly, microsatellites did not identify any signal of population expansion neither in the Atlantic pool nor in the Mediterranean one.
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Affiliation(s)
- Massimiliano Babbucci
- Department of Public Health, Comparative Pathology, and Veterinary Hygiene, University of Padova, Viale dell'Universita' 16, Agripolis 35020 Legnaro (Padova), Italy
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41
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Marine biogeographic boundaries and human introduction along the European coast revealed by phylogeography of the prawn Palaemon elegans. Mol Phylogenet Evol 2010; 55:765-75. [PMID: 20307676 DOI: 10.1016/j.ympev.2010.03.021] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2009] [Revised: 03/10/2010] [Accepted: 03/12/2010] [Indexed: 11/24/2022]
Abstract
A phylogeographic analysis is carried out for the widely distributed European littoral prawn Palaemon elegans in order to test for potential genetic differentiation and geographic structure. Mitochondrial sequences were obtained from 283 specimens from the northeastern Atlantic, the Baltic, Mediterranean, Black and Caspian Seas. Our study revealed a surprisingly complex population structure. Three main haplogroups can be separated: one from the Atlantic (Type I) and two from the Mediterranean (Types II and III). While the Mediterranean types occur in sympatry, a clear phylogeographic break was observed along the Almería-Oran Front separating Type I and giving evidence for a genetic isolation of Atlantic and Mediterranean populations. Type III represents the most distinct haplogroup with high levels of nucleotide divergence, indicating the occurrence of a cryptic species with a Messinian origin. The colonization of the southeastern Baltic Sea is most likely due to human introduction.
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42
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SALA-BOZANO MARIA, KETMAIER VALERIO, MARIANI STEFANO. Contrasting signals from multiple markers illuminate population connectivity in a marine fish. Mol Ecol 2009; 18:4811-26. [DOI: 10.1111/j.1365-294x.2009.04404.x] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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43
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Genetic diversity of silver pomfret (Pampus argenteus) populations from the China Sea based on mitochondrial DNA control region sequences. BIOCHEM SYST ECOL 2009. [DOI: 10.1016/j.bse.2009.09.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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44
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ENGELHAUPT DANIEL, RUS HOELZEL A, NICHOLSON COLIN, FRANTZIS ALEXANDROS, MESNICK SARAH, GERO SHANE, WHITEHEAD HAL, RENDELL LUKE, MILLER PATRICK, DE STEFANIS RENAUD, CAÑADAS ANA, AIROLDI SABINA, MIGNUCCI-GIANNONI ANTONIOA. Female philopatry in coastal basins and male dispersion across the North Atlantic in a highly mobile marine species, the sperm whale (Physeter macrocephalus). Mol Ecol 2009; 18:4193-205. [DOI: 10.1111/j.1365-294x.2009.04355.x] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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45
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Knutsen H, Jorde PE, Sannaes H, Rus Hoelzel A, Bergstad OA, Stefanni S, Johansen T, Stenseth NC. Bathymetric barriers promoting genetic structure in the deepwater demersal fish tusk (Brosme brosme). Mol Ecol 2009; 18:3151-62. [PMID: 19549108 DOI: 10.1111/j.1365-294x.2009.04253.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Population structuring in the North Atlantic deepwater demersal fish tusk (Brosme brosme) was studied with microsatellite DNA analyses. Screening eight samples from across the range of the species for seven loci revealed low but significant genetic heterogeneity (F(ST) = 0.0014). Spatial genetic variability was only weakly related to geographical (Euclidean) distance between study sites or separation of study sites along the path of major ocean currents. Instead, we found a significant effect of habitat, indicated by significant differentiation between relatively closely spaced sites: Rockall, which is surrounded by very deep water (>1000 m), and the Mid-Atlantic Ridge, which is separated from the European slope by a deep ocean basin, were differentiated from relatively homogeneous sites across the Nordic Seas. Limited adult migration across bathymetric barriers in combination with limited intersite exchange of pelagic eggs and larvae due to site-specific circulatory retention or poor survival during drift phases across deep basins may be reducing gene flow. We regard these limitations to gene flow as the most likely mechanisms for the observed population structure in this demersal species. The results underscore the importance of habitat boundaries in marine species.
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Affiliation(s)
- Halvor Knutsen
- Institute of Marine Research, Flødevigen, N-4817 His, Norway.
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46
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BEARZI GIOVANNI, FORTUNA CATERINAMARIA, REEVES RANDALLR. Ecology and conservation of common bottlenose dolphinsTursiops truncatusin the Mediterranean Sea. Mamm Rev 2009. [DOI: 10.1111/j.1365-2907.2008.00133.x] [Citation(s) in RCA: 122] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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47
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Luttikhuizen PC, Campos J, Bleijswijk JV, Peijnenburg KT, van der Veer HW. Phylogeography of the common shrimp, Crangon crangon (L.) across its distribution range. Mol Phylogenet Evol 2008; 46:1015-30. [DOI: 10.1016/j.ympev.2007.11.011] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2007] [Revised: 10/19/2007] [Accepted: 11/15/2007] [Indexed: 10/22/2022]
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48
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Domingues VS, Faria C, Stefanni S, Santos RS, Brito A, Almada VC. Genetic divergence in the Atlantic-Mediterranean Montagu's blenny, Coryphoblennius galerita (Linnaeus 1758) revealed by molecular and morphological characters. Mol Ecol 2007; 16:3592-605. [PMID: 17845433 DOI: 10.1111/j.1365-294x.2007.03405.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Coryphoblennius galerita is a small intertidal fish with a wide distribution and limited dispersal ability, occurring in the northeastern Atlantic and Mediterranean. In this study, we examined Atlantic and Mediterranean populations of C. galerita to assess levels of genetic divergence across populations and to elucidate historical and contemporary factors underlying the distribution of the genetic variability. We analyse three mitochondrial and one nuclear marker and 18 morphological measurements. The combined dataset clearly supports the existence of two groups of C. galerita: one in the Mediterranean and another in the northeastern Atlantic. The latter group is subdivided in two subgroups: Azores and the remaining northeastern Atlantic locations. Divergence between the Atlantic and the Mediterranean can be the result of historical isolation between the populations of the two basins during the Pleistocene glaciations. Present-day barriers such as the Gibraltar Strait or the 'Almeria-Oran jet' are also suggested as responsible for this isolation. Our results show no signs of local extinctions during the Pleistocene glaciations, namely at the Azores, and contrast with the biogeographical pattern that has been observed for Atlantic-Mediterranean warm-water species, in which two groups of populations exist, one including the Mediterranean and the Atlantic coast of western Europe, and another encompassing the western tropical coast of Africa and the Atlantic islands of the Azores, Madeira and Canaries. Species like C. galerita that tolerate cooler waters, may have persisted during the Pleistocene glaciations in moderately affected locations, thus being able to accumulate genetic differences in the more isolated locations such as the Azores and the Mediterranean. This study is one of the first to combine morphological and molecular markers (mitochondrial and nuclear) with variable rates of molecular evolution to the study of the relationships of the Atlantic and Mediterranean populations of a cool-water species.
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Affiliation(s)
- Vera S Domingues
- Instituto Superior de Psicologia Aplicada, Unidade de Investigação em Eco-Etologia, R. Jardim do Tabaco 34, 1149-041 Lisboa, Portugal.
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49
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Patarnello T, Volckaert FAMJ, Castilho R. Pillars of Hercules: is the Atlantic-Mediterranean transition a phylogeographical break? Mol Ecol 2007; 16:4426-44. [PMID: 17908222 DOI: 10.1111/j.1365-294x.2007.03477.x] [Citation(s) in RCA: 407] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The geological history of the Mediterranean Sea, its hydrography and connection with the Atlantic Ocean have been well documented. Despite a wealth of historical and oceanographic data, the Atlantic-Mediterranean transition remains controversial at the biological level as there are discordant results regarding the biogeographical separation between the Atlantic and Mediterranean biota. The opening of the Strait of Gibraltar at the end of the Messinian Salinity Crisis (some 5.33 million years ago), removed the land barrier that impeded the marine biota allowing it to disperse freely into the Mediterranean Sea. However, present day genetic patterns suggest a limitation to gene flow for some marine species, preventing population admixture. In the last few years, a large number of studies have challenged the hypothesis of the Strait of Gibraltar representing a phylogeographical break. A review of more than 70 papers reveals no obvious relationship between either dispersal ability or life history, and observed patterns of partial or complete genetic isolation between Atlantic and Mediterranean populations. We re-analysed a selection of this large body of data (20 studies in total) in order to provide a homogeneous and coherent view on the generality of the phylogeographical patterns and the presence of a phylogeographical barrier. This offered the opportunity to summarize the state of the art on this matter and reach some general conclusions on the evolutionary history across the Atlantic-Mediterranean range. Geographically, some species in the transition zone showed step changes of allele frequencies associated with the Almeria-Oran Front rather than with the Strait of Gibraltar itself. A major part of the data describe evolutionary events well within the time frame of the Quaternary age as very few taxa pre-date closure of the Tethys Sea. Results point to a combined signature of vicariance, palaeoclimate fluctuation and life-history traits on the Atlantic-Mediterranean phylogeographical patterns. Principal component analysis failed to show any particular association between biological traits and genetic variables. It would argue that organismal determinism may play a far less significant role than marine biogeographers have generally believed.
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Affiliation(s)
- Tomaso Patarnello
- Dipartimento di Sanità Pubblica Patologia Comparata e Igiene Veterinaria, Agripolis, Università di Padova, Viale dell'Università, 16, I-35020 Legnaro (Pd), Italy.
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50
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Pérez-Losada M, Nolte MJ, Crandall KA, Shaw PW. Testing hypotheses of population structuring in the Northeast Atlantic Ocean and Mediterranean Sea using the common cuttlefish Sepia officinalis. Mol Ecol 2007; 16:2667-79. [PMID: 17594438 DOI: 10.1111/j.1365-294x.2007.03333.x] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Population structuring in species inhabiting marine environments such as the Northeast Atlantic Ocean (NEA) and Mediterranean Sea (MS) has usually been explained based on past and present physical barriers to gene flow and isolation by distance (IBD). Here, we examined the relative importance of these factors on population structuring of the common cuttlefish Sepia officinalis by using methods of phylogenetic inference and hypothesis testing coupled with coalescent and classical population genetic parameter estimation. Individuals from 10 Atlantic and 15 Mediterranean sites were sequenced for 659 bp of the mitochondrial COI gene (259 sequences). IBD seems to be the main factor driving present and past genetic structuring of Sepia populations across the NEA-MS, both at large and small geographical scales. Such an evolutionary process agrees well with some of the biological features characterizing this cuttlefish species (short migrations, nektobenthic habit, benthic eggs hatching directly to benthic juveniles). Despite the many barriers to migration/gene flow suggested in the NEA-MS region, genetic population fragmentation due to past isolation of water masses (Pleistocene; 0.56 million years ago) and/or present-day oceanographic currents was only detected between the Aegean-Ionian and western Mediterranean Seas. Restricted gene flow associated with the Almería-Oran hydrographic front was also suggested between southern and eastern Spanish populations. Distinct population boundaries could not be clearly determined, except for the Aegean-Ionian stock. Two Atlantic and five Mediterranean samples showed evidence of current decline in genetic diversity, which may indicate over-exploitation of Sepia in both marine regions.
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Affiliation(s)
- Marcos Pérez-Losada
- Department of Integrative Biology, Brigham Young University, Provo, UT 84602, USA.
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