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Hoeksema BW, Samimi-Namin K, McFadden CS, Rocha RM, van Ofwegen LP, Hiemstra AF, Vermeij MJA. Non-native coral species dominate the fouling community on a semi-submersible platform in the southern Caribbean. MARINE POLLUTION BULLETIN 2023; 194:115354. [PMID: 37573671 DOI: 10.1016/j.marpolbul.2023.115354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/25/2023] [Accepted: 07/29/2023] [Indexed: 08/15/2023]
Abstract
A coral community was examined on a semi-submersible platform that was moored at the leeward side of Curaçao, in the southern Caribbean, from August 2016 until August 2017. This community included several non-native or cryptogenic species. Among them were two scleractinian corals (Tubastraea coccinea and T. tagusensis) and two octocorals (Chromonephthea sp. and an unidentified Nephtheidae sp.). This is the first reported presence of T. tagusensis in the southern Caribbean, and the genus Chromonephthea in the Caribbean region. An ascidian, Perophora cf. regina, is also reported from the southern Caribbean for the first time, as well as a coral-associated vermetid gastropod, Petaloconchus sp., first recorded in the Caribbean in 2014. Lack of biofouling management could potentially harm indigenous marine fauna through the introduction of non-native species. Therefore monitoring communities associated with semi-submersible platforms is essential to track the presence and dispersal of non-native, potentially invasive species.
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Affiliation(s)
- Bert W Hoeksema
- Marine Evolution and Ecology Group, Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA Leiden, the Netherlands; Groningen Institute for Evolutionary Life Sciences, University of Groningen, P.O. Box 11103, 9700 CC Groningen, the Netherlands; Institute of Biology Leiden, Leiden University, P.O. Box 9505, 2300 RA Leiden, the Netherlands.
| | - Kaveh Samimi-Namin
- Marine Evolution and Ecology Group, Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA Leiden, the Netherlands; Department of Zoology, University of Oxford, Oxfordshire, Oxford OX1 3SZ, UK; Natural History Museum, Cromwell Road, London SW7 5BD, UK
| | | | - Rosana M Rocha
- Departamento de Zoologia, Universidade Federal do Paraná, CP 19020, 81531-980 Curitiba, Brazil
| | - Leen P van Ofwegen
- Marine Evolution and Ecology Group, Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA Leiden, the Netherlands
| | - Auke-Florian Hiemstra
- Marine Evolution and Ecology Group, Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA Leiden, the Netherlands; Institute of Biology Leiden, Leiden University, P.O. Box 9505, 2300 RA Leiden, the Netherlands
| | - Mark J A Vermeij
- Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94248, 1090 GE Amsterdam, the Netherlands; CARMABI Foundation, P.O. Box 2090, Piscaderabaai z/n, Willemstad, Curaçao
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2
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Western boundary currents drive sun-coral (Tubastraea spp.) coastal invasion from oil platforms. Sci Rep 2022; 12:5286. [PMID: 35347218 PMCID: PMC8960833 DOI: 10.1038/s41598-022-09269-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 03/16/2022] [Indexed: 11/08/2022] Open
Abstract
Most marine species have a planktonic larval phase that benefit from the surface oceanic flow to enhance their dispersion potential. For invasive species, the interaction of environmentally resistant larvae with different flow regimes and artificial substrates can lead to complex larval dispersion patterns and boost geographic expansion. In the Southwest Atlantic, the invasive corals Tubastraea spp. (sun-coral) have been recorded biofouling on oil platforms since the late 1980s. These platforms are considered important vectors for the established populations throughout the Brazilian coast. However, we still do not know how the position of these structures relative to regional flow contribute to the natural dispersion potential of these invaders on a regional scale. Herein, we used an eddy-resolving ocean model (ROMS) and an Individual Based Model (IBM-Ichthyop) to simulate the natural dispersion patterns of sun-coral larvae from all oil platforms on Brazilian oil-producing basins, for the austral summer and winter along 6 years (2010–2015) in 90-day simulations. We found that mortality rates by advection were significantly higher during the winter (p = 0.001) and when sources of larvae were compared throughout this season (p = 1.9 × 10–17). The influence of two western boundary currents and persistent eddy activity contribute to the dispersal of larvae to distances up to 7000 km. The effectiveness of each oil-producing basin as vectors for the entire Brazilian coastline, measured as the percentage of larval supply, highlights the importance of the northern Ceará (59.89%) and Potiguar (87.47%) basins and the more central Camamu (44.11%) and Sergipe-Alagoas (39.20%) basins. The poleward shift of the Southern branch of the South Equatorial Current during the winter causes larvae released from the Sergipe-Alagoas and Camamu basins to enter the North Brazil Current, expanding their dispersion towards the north. The Brazil Current disperses larvae southwards, but strong mesoscale activity prevents their dispersion to the coast, especially for those released from the oil platforms on Campos and Santos basins. Within this complex hydrodynamic setting, a few source areas, like those in the Sergipe-Alagoas and Camamu basins, can potentially contribute to the spread of larvae along nearly all the Brazilian coast. Therefore, oil platforms act as possible chronic sources of sun-coral propagules to the coast, emphasizing the urgency for a more detailed set of actions to control and monitor these invasive exotic species.
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Qiu H, Feng K, Gapeeva A, Meurisch K, Kaps S, Li X, Yu L, Mishra YK, Adelung R, Baum M. Functional Polymer Materials for Modern Marine Biofouling Control. Prog Polym Sci 2022. [DOI: 10.1016/j.progpolymsci.2022.101516] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Hwang HS, Jung J. First record of the complete mitochondrial genome of the mantis shrimp, Gonodactylaceus randalli (Manning, 1978) (Stomatopoda: Gonodactylidae). Mitochondrial DNA B Resour 2021; 6:510-511. [PMID: 33628907 PMCID: PMC7889260 DOI: 10.1080/23802359.2021.1872441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 12/30/2020] [Indexed: 10/26/2022] Open
Abstract
Biofouling has long been known as a major route for the invasion by non-indigenous species. The mantis shrimp, Gonodactylaceus randalli, is the first stomatopod species that has been identified in a biofouling community. In this study, we sequenced and analyzed the complete mitochondrial genome sequence of this species for the first time. Its mitochondrial genome is 15,907 bp in length and comprises 13 protein-coding genes, 22 transfer RNA genes, 2 ribosomal RNA genes, and a non-coding A + T-rich region. The overall base composition in the heavy strand is as follows: A: 37.3%, T: 31.3%, G: 11.9%, and C: 19.4%, with a G + C content of 31.3%. The phylogenetic analysis revealed that G. randalli belonged to the families Protosquillidae, Gonodactylidae, and Takuidae, in the same clade, within the superfamily Gonodactyloidea. This is the first record of the complete mitochondrial genome sequence of the genus Gonodactylaceus.
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Affiliation(s)
- Hee-seung Hwang
- Research Institute of EcoScience, Ewha Womans University, Seoul, South Korea
| | - Jongwoo Jung
- The Division of EcoCreative, Ewha Womans University, Seoul, South Korea
- Department of Science Education, Ewha Womans University, Seoul, South Korea
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5
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Iacarella JC, Davidson IC, Dunham A. Biotic exchange from movement of ‘static’ maritime structures. Biol Invasions 2018. [DOI: 10.1007/s10530-018-1888-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Heery EC, Hoeksema BW, Browne NK, Reimer JD, Ang PO, Huang D, Friess DA, Chou LM, Loke LHL, Saksena-Taylor P, Alsagoff N, Yeemin T, Sutthacheep M, Vo ST, Bos AR, Gumanao GS, Syed Hussein MA, Waheed Z, Lane DJW, Johan O, Kunzmann A, Jompa J, Taira D, Bauman AG, Todd PA. Urban coral reefs: Degradation and resilience of hard coral assemblages in coastal cities of East and Southeast Asia. MARINE POLLUTION BULLETIN 2018; 135:654-681. [PMID: 30301085 DOI: 10.1016/j.marpolbul.2018.07.041] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 07/10/2018] [Accepted: 07/16/2018] [Indexed: 05/28/2023]
Abstract
Given predicted increases in urbanization in tropical and subtropical regions, understanding the processes shaping urban coral reefs may be essential for anticipating future conservation challenges. We used a case study approach to identify unifying patterns of urban coral reefs and clarify the effects of urbanization on hard coral assemblages. Data were compiled from 11 cities throughout East and Southeast Asia, with particular focus on Singapore, Jakarta, Hong Kong, and Naha (Okinawa). Our review highlights several key characteristics of urban coral reefs, including "reef compression" (a decline in bathymetric range with increasing turbidity and decreasing water clarity over time and relative to shore), dominance by domed coral growth forms and low reef complexity, variable city-specific inshore-offshore gradients, early declines in coral cover with recent fluctuating periods of acute impacts and rapid recovery, and colonization of urban infrastructure by hard corals. We present hypotheses for urban reef community dynamics and discuss potential of ecological engineering for corals in urban areas.
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Affiliation(s)
- Eliza C Heery
- Department of Biological Sciences, National University of Singapore, Singapore 117558, Singapore
| | - Bert W Hoeksema
- Taxonomy and Systematics Group, Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA Leiden, the Netherlands; Institute of Biology Leiden, Leiden University, P.O. Box 9505, 2300 RA Leiden, the Netherlands.
| | - Nicola K Browne
- Molecular and Life Sciences, Faculty of Science and Engineering, Bentley Campus, Curtin University, Perth, WA 6102, Australia; Department of Biological Sciences, National University of Singapore, Singapore 117558, Singapore
| | - James D Reimer
- Molecular Invertebrate Systematics and Ecology Laboratory, Department of Biology, Chemistry and Marine Sciences, Faculty of Science, University of the Ryukyus, Nishihara, Okinawa, Japan; Tropical Biosphere Research Center, University of the Ryukyus, Nishihara, Okinawa, Japan
| | - Put O Ang
- Marine Science Laboratory, School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Danwei Huang
- Department of Biological Sciences, National University of Singapore, Singapore 117558, Singapore; Tropical Marine Science Institute, National University of Singapore, Singapore 119227, Singapore
| | - Daniel A Friess
- Department of Geography, National University of Singapore, Singapore 117570, Singapore; Department of Biological Sciences, National University of Singapore, Singapore 117558, Singapore
| | - Loke Ming Chou
- Tropical Marine Science Institute, National University of Singapore, Singapore 119227, Singapore
| | - Lynette H L Loke
- Department of Biological Sciences, National University of Singapore, Singapore 117558, Singapore
| | - Poonam Saksena-Taylor
- Department of Biological Sciences, National University of Singapore, Singapore 117558, Singapore
| | - Nadia Alsagoff
- Department of Biological Sciences, National University of Singapore, Singapore 117558, Singapore
| | - Thamasak Yeemin
- Marine Biodiversity Research Group, Department of Biology, Faculty of Science, Ramkhamhaeng University, Huamark, Bangkok 10240, Thailand
| | - Makamas Sutthacheep
- Marine Biodiversity Research Group, Department of Biology, Faculty of Science, Ramkhamhaeng University, Huamark, Bangkok 10240, Thailand
| | - Si Tuan Vo
- Institute of Oceanography, Vietnam Academy of Science and Technology, 1 Cau Da, Nha Trang, Khanh Hoa, Viet Nam
| | - Arthur R Bos
- Department of Biology, The American University in Cairo, P.O. Box 74, New Cairo 11835, Egypt; Taxonomy and Systematics Group, Naturalis Biodiversity Center, P.O. Box 9517, 2300 RA Leiden, the Netherlands
| | - Girley S Gumanao
- Marine Biology Department, Davao del Norte State College, New Visayas, 8105 Panabo City, the Philippines
| | - Muhammad Ali Syed Hussein
- Endangered Marine Species Research Unit, Borneo Marine Research Institute, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Malaysia
| | - Zarinah Waheed
- Endangered Marine Species Research Unit, Borneo Marine Research Institute, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Malaysia
| | - David J W Lane
- Lee Kong Chian Natural History Museum, Faculty of Science, National University of Singapore, 2 Conservatory Drive, Singapore 117377, Singapore
| | - Ofri Johan
- Research Institute for Ornamental Fish Culture, Jl. Perikanan No. 13, Pancoran Mas, Kota Depok, Jawa Barat 16436, Indonesia
| | - Andreas Kunzmann
- Leibniz Center for Tropical Marine Research (ZMT), Fahrenheitstr. 6, 28359 Bremen, Germany
| | - Jamaluddin Jompa
- Department of Marine Science, Hasanuddin University, Makassar, Indonesia
| | - Daisuke Taira
- Department of Biological Sciences, National University of Singapore, Singapore 117558, Singapore
| | - Andrew G Bauman
- Department of Biological Sciences, National University of Singapore, Singapore 117558, Singapore
| | - Peter A Todd
- Department of Biological Sciences, National University of Singapore, Singapore 117558, Singapore.
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Davidson IC, Scianni C, Minton MS, Ruiz GM. A history of ship specialization and consequences for marine invasions, management and policy. J Appl Ecol 2018. [DOI: 10.1111/1365-2664.13114] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Christopher Scianni
- Marine Invasive Species Program California State Lands Commission Long Beach CA USA
| | - Mark S. Minton
- Smithsonian Environmental Research Center Edgewater MD USA
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Robertson DR, Dominguez-Dominguez O, Victor B, Simoes N. An Indo-Pacific damselfish ( Neopomacentrus cyanomos) in the Gulf of Mexico: origin and mode of introduction. PeerJ 2018; 6:e4328. [PMID: 29441235 PMCID: PMC5807916 DOI: 10.7717/peerj.4328] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 01/15/2018] [Indexed: 11/20/2022] Open
Abstract
The Indo-West Pacific (IWP) coral-reef damselfish Neopomacentrus cyanomos is well established across the south-west Gulf of Mexico (SwGoMx). Comparisons of mtDNA sequences of the SwGoMx population with those from conspecifics from 16 sites scattered across its native geographic range show that the SwGoMx population is derived from two of four native lineages: one from the north-west Pacific Ocean, the other from the northern Indian Ocean. Three hypotheses address how this species was introduced to the SwGoMX: (1) aquarium release; (2) borne by cargo-ship; and (3) carried by offshore petroleum platform (petro-platform). The first is unlikely because this species rarely features in the aquarium trade, and “N. cyanomos” traded to the USA from the sole IWP source we are aware of are a misidentified congener, N. taeniurus. The second hypothesis is unlikely because shipping has not been associated with the introduction of alien damselfishes, there is little international shipping between the IWP and the SwGoMx, and voyages between those areas would be lengthy and along environmentally unfavorable routes. Various lines of evidence support the third hypothesis: (i) bio-fouled petro-platforms represent artificial reefs that can sustain large and diverse populations of tropical reef-fishes, including N. cyanomos in the SwGoMx; (ii) relocation of such platforms has been implicated in trans-oceanic introductions leading to establishment of non-native populations of such fishes; and (iii) genetic characteristics of the SwGoMx population indicate that it was established by a large and diverse group of founders drawn from the IWP regions where many petro-platforms currently in the SwGoMx and other Atlantic offshore oilfields originated.
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Affiliation(s)
- D Ross Robertson
- Naos Marine Laboratory, Smithsonian Tropical Research Institute, Balboa, Republic of Panama
| | - Omar Dominguez-Dominguez
- Laboratorio de Biologia Acuatica, Facultad de Biologia, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Michoacan, Mexico.,Laboratorio Nacional de Análisis y Síntesis Ecológica para la Conservación de Recursos Genéticos de México, Escuela Nacional de Estudios Superiores, Unidad Morelia, Universidad Nacional Autónoma de México, Morelia, Michoacán, Mexico
| | - Benjamin Victor
- Guy Harvey Research Institute, Nova Southeastern University, Ft Lauderdale, FL, United States of America
| | - Nuno Simoes
- Unidad Multidisciplinaria en Docencia e Investigacion de Sisal, Facultad de Ciencias, UNAM, Sisal, Yucatan, Mexico.,Laboratorio Nacional de Resiliencia Costera, Unidad Académica de Yucatán, Universidad Nacional Autónoma de México, Sisal, Yucatán, Mexico.,Harte Institute for Gulf of Mexico Studies, Texas A&M University-Corpus Christi, Corpus Christi, TX, United States of America
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9
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Pestana LB, Dias GM, Marques AC. A century of introductions by coastal sessile marine invertebrates in Angola, South East Atlantic Ocean. MARINE POLLUTION BULLETIN 2017; 125:426-432. [PMID: 29031561 DOI: 10.1016/j.marpolbul.2017.09.041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 09/19/2017] [Accepted: 09/20/2017] [Indexed: 06/07/2023]
Abstract
South Atlantic studies referring to non-native taxa are mostly restricted to Argentinean, Brazilian, and South African coasts. In this study we examined the literature to provide a list of sessile marine invertebrates along the Angolan coast, to infer its introduction status according to their biogeographical distribution and natural history. We reported 29 non-native and 7 cryptogenic species, a small number when compared to other South Atlantic regions of similar extension. Half of the non-native species were reported for Luanda. The majority of the introduced species had a northern hemisphere origin, a consequence of the main introduction route being from the North Atlantic/Mediterranean Sea during the Portuguese colonization. This is the first comprehensive assessment of this kind for the Angolan coast and the diversity of introduced species is certainly underestimated. Regular and rigorous assessments and monitoring of introduced marine species will help to understand the vectors, routes and time of introductions.
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Affiliation(s)
- Lueji Barros Pestana
- Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, R. Matão tr. 14, 101, Cidade Universitária, São Paulo 05508-090, Brazil; Departamento de Biologia, Faculdade de Ciências, Universidade Agostinho Neto, Avenida 4 de Fevereiro, 71, 4º andar, Luanda, Angola.
| | - Gustavo Muniz Dias
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, R. Arcturus, 03, São Bernardo do Campo 09606-070, Brazil
| | - Antonio Carlos Marques
- Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, R. Matão tr. 14, 101, Cidade Universitária, São Paulo 05508-090, Brazil; Centro de Biologia Marinha, Universidade de São Paulo, São Sebastião, São Paulo, Brazil
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10
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Creed JC, Fenner D, Sammarco P, Cairns S, Capel K, Junqueira AOR, Cruz I, Miranda RJ, Carlos-Junior L, Mantelatto MC, Oigman-Pszczol S. The invasion of the azooxanthellate coral Tubastraea (Scleractinia: Dendrophylliidae) throughout the world: history, pathways and vectors. Biol Invasions 2016. [DOI: 10.1007/s10530-016-1279-y] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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11
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Friedlander AM, Ballesteros E, Fay M, Sala E. Marine communities on oil platforms in Gabon, West Africa: high biodiversity oases in a low biodiversity environment. PLoS One 2014; 9:e103709. [PMID: 25083704 PMCID: PMC4118950 DOI: 10.1371/journal.pone.0103709] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Accepted: 07/04/2014] [Indexed: 12/04/2022] Open
Abstract
The marine biodiversity of Gabon, West Africa has not been well studied and is largely unknown. Our examination of marine communities associated with oil platforms in Gabon is the first scientific investigation of these structures and highlights the unique ecosystems associated with them. A number of species previously unknown to Gabonese waters were recorded during our surveys on these platforms. Clear distinctions in benthic communities were observed between older, larger platforms in the north and newer platforms to the south or closer to shore. The former were dominated by a solitary cup coral, Tubastraea sp., whereas the latter were dominated by the barnacle Megabalanus tintinnabulum, but with more diverse benthic assemblages compared to the northerly platforms. Previous work documented the presence of limited zooxanthellated scleractinian corals on natural rocky substrate in Gabon but none were recorded on platforms. Total estimated fish biomass on these platforms exceeded one ton at some locations and was dominated by barracuda (Sphyraena spp.), jacks (Carangids), and rainbow runner (Elagatis bipinnulata). Thirty-four percent of fish species observed on these platforms are new records for Gabon and 6% are new to tropical West Africa. Fish assemblages closely associated with platforms had distinct amphi-Atlantic affinities and platforms likely extend the distribution of these species into coastal West Africa. At least one potential invasive species, the snowflake coral (Carijoa riisei), was observed on the platforms. Oil platforms may act as stepping stones, increasing regional biodiversity and production but they may also be vectors for invasive species. Gabon is a world leader in terrestrial conservation with a network of protected areas covering >10% of the country. Oil exploration and biodiversity conservation currently co-exist in terrestrial and freshwater ecosystems in Gabon. Efforts to increase marine protection in Gabon may benefit by including oil platforms in the marine protected area design process.
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Affiliation(s)
- Alan M. Friedlander
- Fisheries Ecology Research Laboratory, Department of Biology, University of Hawaii, Honolulu, Hawaii, United States of America
- Pristine Seas, National Geographic Society, Washington, DC, United States of America
- * E-mail:
| | | | - Michael Fay
- Pristine Seas, National Geographic Society, Washington, DC, United States of America
- Wildlife Conservation Society, Bronx, New York, United States of America
- Special Advisor, Presidence de la République, Libreville, République Gabonaise
| | - Enric Sala
- Pristine Seas, National Geographic Society, Washington, DC, United States of America
- Centre d'Estudis Avançats-CSIC, Blanes, Spain
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12
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Moreira PL, Ribeiro FV, Creed JC. Control of invasive marine invertebrates: an experimental evaluation of the use of low salinity for managing pest corals (Tubastraea spp.). BIOFOULING 2014; 30:639-650. [PMID: 24735126 DOI: 10.1080/08927014.2014.906583] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This study investigated the use of low salinity as a killing agent for the invasive pest corals Tubastraea coccinea and Tubastraea tagusensis (Dendrophylliidae). Experiments investigated the efficacy of different salinities, the effect of colony size on susceptibility and the influence of length of exposure. Experimental treatments of colonies were carried out in aquaria. Colonies were then fixed onto experimental plates and monitored in the field periodically over a period of four weeks. The killing effectiveness of low salinity depended on the test salinity and the target species, but was independent of colony size. Low salinity was fast acting and prejudicial to survival: discoloration, necrosis, fragmenting and sloughing, exposure of the skeleton and cover by biofoulers occurred post treatment. For T. tagusensis, 50% mortality (LC50) after three days occurred at eight practical salinity units (PSU); for T. coccinea the LC50 was 2 PSU. Exposure to freshwater for 45-120 min resulted in 100% mortality for T. tagusensis, but only the 120 min period was 100% effective in killing T. coccinea. Freshwater is now routinely used for the post-border management of Tubastraea spp. This study also provides insights as to how freshwater may be used as a routine biosecurity management tool when applied pre-border to shipping vectors potentially transporting non-indigenous marine biofouling species.
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Affiliation(s)
- Patrícia L Moreira
- a Laboratório de Ecologia Marinha Bêntica, Departamento de Ecologia , IBRAG, Universidade do Estado do Rio de Janeiro , Rio de Janeiro , Brazil
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Abstract
An overview of the invasive alien species situation in Singapore is presented. An updated checklist of introduced or alien animals in Singapore is provided; of the 142 species of invertebrates and vertebrates documented, more than 70% are considered established. A brief introduction and discussion of pertinent definitions and terminology for describing invasive alien species, with particular reference to Singapore, is included. In addition, important pathways for biological invasion into Singapore are highlighted, and legislation and institutional roles with respect to alien species issues in Singapore are summarized, featuring examples of management programmes. The article concludes by identifying areas emphasized in recently published alien species research in Singapore and knowledge gaps that need to be filled.
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Affiliation(s)
- DARREN C. J. YEO
- Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore 117543, Singapore
| | - CHERYL S. W. CHIA
- National Biodiversity Centre, National Parks Board, Singapore Botanic Gardens, 1 Cluny Road, Singapore 259569, Singapore
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14
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Hopkins GA, Forrest BM. Challenges associated with pre-border management of biofouling on oil rigs. MARINE POLLUTION BULLETIN 2010; 60:1924-1929. [PMID: 20696440 DOI: 10.1016/j.marpolbul.2010.07.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2010] [Revised: 07/13/2010] [Accepted: 07/16/2010] [Indexed: 05/29/2023]
Abstract
The potential for oil rigs to transport diverse, reef-like communities around the globe makes them high risk vectors for the inadvertent spread of non-indigenous species (NIS). This paper describes two case studies where a suite of pre-border management approaches was applied to semi-submersible drilling rigs. In the first case study, a drilling rig was defouled in-water prior to departure from New Zealand to Australia. Risk mitigation measures were successful in reducing biosecurity risks to the recipient region, but they resulted in the unintentional introduction of the non-indigenous brown mussel (Perna perna) to New Zealand when the rig was defouled in-water by divers. In the second case study, lessons learned from this high-profile incursion resulted in a more structured approach to pre-border management, and this serves as a useful template for future rig transfers.
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Affiliation(s)
- Grant A Hopkins
- Coastal & Freshwater Group, Cawthron Institute, Private Bag 2, Nelson, New Zealand.
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Coutts ADM, Valentine JP, Edgar GJ, Davey A, Burgess-Wilson B. Removing vessels from the water for biofouling treatment has the potential to introduce mobile non-indigenous marine species. MARINE POLLUTION BULLETIN 2010; 60:1533-1540. [PMID: 20553694 DOI: 10.1016/j.marpolbul.2010.04.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2010] [Revised: 04/28/2010] [Accepted: 04/29/2010] [Indexed: 05/29/2023]
Abstract
Vessels found contaminated with biofouling non-indigenous marine species are predominantly removed from the water and treated in vessel maintenance facilities (i.e., slipways, travel lifts and dry-docks). Using pre-fouled settlement plates to simulate a vessel's removal from the water for treatment, we demonstrate that a range of mobile organisms (including non-indigenous marine species) may be lost to the marine environment as a consequence of this process. We also determined that different levels of biofouling (primary, secondary and tertiary) and emersion durations (0.5, 5 and 15 min) affected the abundance and composition of mobile taxa lost to the marine environment. Primary biofouling plates lost 3.2% of total animals, secondary plates lost 19.8% and tertiary plates lost 8.2%, while hanging duration had only minor effects. The results suggest that removing vessels contaminated with biofouling non-indigenous marine species from the water for treatment may not be as biosecure as is currently recognised.
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