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Nyborg T, Garassino A, Vega FJ. Validation of Paromola roseburgensis Nyborg & Garassino (Brachyura: Homolidae) from the early Eocene of Oregon, USA. Zootaxa 2023; 5318:441-442. [PMID: 37518368 DOI: 10.11646/zootaxa.5318.3.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Indexed: 08/01/2023]
Affiliation(s)
- Torrey Nyborg
- Department of Earth and Biological Sciences; Loma Linda University; Loma Linda; CA 92350; U.S.A..
| | - Alessandro Garassino
- Department of Earth and Biological Sciences; Loma Linda University; Loma Linda; CA 92350; U.S.A..
| | - Francisco J Vega
- Instituto de Geología;UNAM; Ciudad Universitaria; Coyoacán; México DF 04510; Mexico.
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2
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Vadher P, Kardani H, Beleem I. Diversity and distribution of mantis shrimps (Arthropoda: Crustacea: Stomatopoda) in the Gulf of Kachchh, Gujarat, India. JOURNAL OF THREATENED TAXA 2022. [DOI: 10.11609/jott.7471.14.5.21032-21042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Diversity and distribution study of Stomatopoda has been carried out in selected locations of Gulf of Kachchh from 2014 to 2020. Four species belonging to four genera in two families were recorded from Gulf of Kachchh, Gujarat. Carinosquilla multicarinata (White, 1848) was recorded for the first time from the west coast of India. Cloridina ichneumon (Fabricius, 1798) was recorded for the first time from Gujarat coast. Gonodactylellus demanii (Henderson, 1893) was reported after 50 years from Gulf of Kachchh, Gujarat, and Gonodactylus smithii Pocock, 1893 is a commonly occurring species in the intertidal zone of the Gulf of Kachchh. Species are described and illustrated with key characters and distributional status in Gulf of Kachchh. An annotated checklist of nine species of Stomatopoda occurring in Gujarat is presented.
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Padate VP, Ahyong ST, Shaji AK, Cubelio SS, Saravanane N. First records of two species of reef-associated mantis shrimps (Crustacea: Stomatopoda) from India. Zootaxa 2021; 5047:557-566. [PMID: 34810824 DOI: 10.11646/zootaxa.5047.5.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Indexed: 11/04/2022]
Abstract
The coastal marine environments in the Indian Exclusive Economic Zone harbour a rich diversity of mantis shrimps. However, several regions have not been adequately surveyed for their stomatopod faunal composition. In this paper, we report the first records of two species, Gonodactylopsis drepanophora (de Man, 1902) and Cloridina malaccensis (Manning, 1968) from Indian waters. Samples were collected using a chain dredge deployed by the Fishery Oceanographic Research Vessel Sagar Sampada on the shallow reefs (5356 m depths) of the Andaman Sea and Bay of Bengal during AugustNovember 2019. Gonodactylopsis drepanophora was previously known only from Indonesia, and Cloridina malaccensis from Southeast Asia, New Caledonia and Madagascar.
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Affiliation(s)
- Vinay P Padate
- Centre for Marine Living Resources and Ecology, Ministry of Earth Sciences, Government of India, Atal Bhavan, LNG Terminus Road, Ochanthuruth (PO), Puthuvype, Kochi 682 508, Kerala, India. .
| | - Shane T Ahyong
- Australian Museum Research Institute, 1 William St., Sydney, NSW 2010, Australia, and School of Biological, Earth Environmental Sciences, University of New South Wales, Kensington, NSW 2052, Australia..
| | - Aleesha K Shaji
- Department of Marine Biology, School of Ocean Studies and Technology, Kerala University of Fisheries and Ocean Studies, Kochi, 682016, Kerala, India. .
| | - Sherine Sonia Cubelio
- Centre for Marine Living Resources and Ecology, Ministry of Earth Sciences, Government of India, Atal Bhavan, LNG Terminus Road, Ochanthuruth (PO), Puthuvype, Kochi 682 508, Kerala, India. .
| | - Narayanane Saravanane
- Centre for Marine Living Resources and Ecology, Ministry of Earth Sciences, Government of India, Atal Bhavan, LNG Terminus Road, Ochanthuruth (PO), Puthuvype, Kochi 682 508, Kerala, India. .
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Ng PKL, Castro P. A revision of Carcinoplax abyssicola (Miers, 1885) and seven related species of Carcinoplax H. Milne Edwards, 1852, with the description of two new species and an updated key to the genus (Crustacea, Decapoda, Brachyura, Goneplacidae). ZOOSYSTEMA 2020. [DOI: 10.5252/zoosystema2020v42a17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Peter K. L. Ng
- Lee Kong Chian Natural History Museum, National University of Singapore, 2 Conservatory Drive, Singapore 117377 (Republic of Singapore)
| | - Peter Castro
- Lee Kong Chian Natural History Museum, National University of Singapore, 2 Conservatory Drive, Singapore 117377 (Republic of Singapore)
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Tan C. Leucosiidae of theAlbatrossexpedition to the Philippines, 1907–1910 (Crustacea: Brachyura: Decapoda). J NAT HIST 2007. [DOI: 10.1080/00222939600770551] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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6
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Creasey S, Rogers AD, Tyler P, Young C, Gage J. The population biology and genetics of the deep–sea spider crab,
Encephaloides armstrongi
Wood–Mason 1891 (Decapoda: Majidae). Philos Trans R Soc Lond B Biol Sci 1997. [DOI: 10.1098/rstb.1997.0027] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Numerous specimens of the majid spider crab,
Encephaloides armstrongi
, were sampled from six stations (populations) between 150 and 650 m depth, on the continental slope off the coast of Oman. This extended the known geographic and bathymetric range of
E. armstrongi
, which is now known to occur along the continental margins of the northern Indian Ocean from the western coast of Burma to the coast of Oman. This band–like distribution is contiguous to the oxygen minimum zone in this region.
The biology and genetics of populations of
Encephaloides armstrongi
separated by depth were studied. The overall sex ratio of the
E. armstrongi
sampled was male–biased (
p
< 0.01; 3.3 males: 1 female;
S
o
= 0.538). However, sex ratio varied both between populations (
p
< 0.01) and between size classes of crabs. Size frequency analysis indicated that the male and female crabs consisted of at least two instars, one between 6 and 16 mm carapace length and one between 16 and 29 mm carapace length, which probably represented the terminal (pubertal) moult for most individuals. Accumulation of female crabs in the terminal instar probably caused the variation of sex ratio with size classes. Some male crabs grew to a larger size (up to 38 mm carapace length), possibly as a result of maturity at later instars.
Length frequency distribution was significantly different between sexes (one–way ANOVA
p
< 0.001). Within sexes, length frequency distributions varied between different populations. In both male and female
Encephaloides armstrongi
the individuals from a single population located at 150 m depth were significantly smaller than individuals at all other stations and were considered to represent a juvenile cohort. For female crabs no other significant differences were detected in length frequency between populations from 300 m to 650 m depth. Significant differences in length frequency were detected between male crabs from populations between 300 and 650 m depth.
Horizontal starch gel electrophoresis was used to detect six enzyme systems coding for eight loci for individuals sampled from each population of
Encephaloides armstrongi
. Genetic identity (
I
) values between populations of
E. armstrongi
(
I
= 0.98−1.00) were within the normal range for conspecific populations. Observed heterozygosity (
H
o
= 0.080−0.146) was lower than expected heterozygosity (
H
e
= 0.111−0.160), but in the normal range detected for eukaryotic organisms.
F
–statistics were used to analyse between population (
F
ST
) and within population (
F
) genetic structure. For both male and female
E. armstrongi
significant genetic differentiation was detected between the population located at 150 m depth and all other populations. Analyses of
F
IS
and
F
ST
, excluding the 150 m population indicated that for female
E. armstrongi
there was no significant structuring within or between populations. For male
E. armstrongi
significant heterozygote deficiencies were detected within populations and significant genetic differentiation between populations.
The most likely explanations for the observations of the present study are: the population of
Encephaloides armstrongi
located at 150 m depth represented a juvenile cohort that is genetically distinct from deeper populations; female
E. armstrongi
formed a single population between 300 m and 650 m depth in the sampling area; male
E. armstrongi
were from two or more genetically distinct populations which are represented by different numbers of individuals at stations between 300 m and 650 m depth. This caused the observed significant differences in morphology (size distribition) and allele frequencies of male populations. It is likely that
E. armstrongi
exhibits gender–biased dispersal and that the crabs collected between 300 m and 650 m depth formed spawning aggressions. This also explains the bias in sex ratio of individuals sampled in the present study.
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Affiliation(s)
- Simon Creasey
- Department of Oceanography, The University of Southampton, Southampton Oceanography CentreEmpress Dock, Southampton SO14 3ZHUK
- The Marine Biological Association of the UK, The LaboratoryCitadel Hill, Plymouth, PL1 2PBUK
| | - Alex D. Rogers
- The Marine Biological Association of the UK, The LaboratoryCitadel Hill, Plymouth, PL1 2PBUK
| | - Paul Tyler
- Department of Oceanography, The University of Southampton, Southampton Oceanography CentreEmpress Dock, Southampton SO14 3ZHUK
| | - Craig Young
- Harbor Branch Oceanographic Institution5600 U.S. 1 North, Fort Pierce, FL 34946USA
| | - John Gage
- The Scottish Association for Marine SciencesP.O. Box 3, Oban, Argyll PA34 4ADUK
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