Demersal fish fauna of the Weddell Sea, Antarctica
The demersal fish fauna of the southern and eastern Weddell Sea is described. The following species were recorded for the first time in this area: Aethotaxis mitopteryx, Bathyraja eatoni, B. Maccaini, B . sp2 (FAO-list), Bathydraco marri, Dissostichus mawsoni, Macrourus holotrachys, Muraenolepis sp....
Published in: | Antarctic Science |
---|---|
Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
1990
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1017/s0954102090000165 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102090000165 |
id |
crcambridgeupr:10.1017/s0954102090000165 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1017/s0954102090000165 2024-09-30T14:26:50+00:00 Demersal fish fauna of the Weddell Sea, Antarctica Ekau, Werner 1990 http://dx.doi.org/10.1017/s0954102090000165 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102090000165 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 2, issue 2, page 129-137 ISSN 0954-1020 1365-2079 journal-article 1990 crcambridgeupr https://doi.org/10.1017/s0954102090000165 2024-09-04T04:04:41Z The demersal fish fauna of the southern and eastern Weddell Sea is described. The following species were recorded for the first time in this area: Aethotaxis mitopteryx, Bathyraja eatoni, B. Maccaini, B . sp2 (FAO-list), Bathydraco marri, Dissostichus mawsoni, Macrourus holotrachys, Muraenolepis sp., Notothenia coriiceps, Notothenia kempi, Psilodraco spec. and Trematomus nicolai . In terms of biomass the dominant species on the very narrow eastern continental shelf were Chionodraco myersi (49%), Trematomus eulepidotus (11%), C. hamatus (7%), T. lepidorhinus (6%), Pagetopsis maculatus (5%) and T. scotti, Cryodraco antarcticus, Cygnodraco mawsoni and Pleuragramma antarcticum (4% each). The highest density of individuals and greatest biomass was found between 400 and 650 m water depth. Here, C. myersi, T. eulepidotus and T. lepidorhinus dominated the catches. The shallow shelf area was inhabited by smaller species such as T. scotti, T. centronotus, P. maculatus, Artedidraco skottsbergii, A. shackletoni , and Prionodraco evansii . In the southern Weddell Sea Akarotaxis nudiceps, Dolloidraco longedorsalis, Gerlachea australis, Pleuragramma antarcticum , and Trematomus loennbergi were dominant. Members of the Channichthyidae occurred only occasionally, most of these are Dacodraco hunteri . The biomass of the demersal fish fauna was estimated to be 0.3 to 1.6 t km −2 on the Vestkapp shelf and 0.1 to 0.4 t km −2 for Gould Bay. Biomass values greater than 1.0 t km −2 were found at the shelf edge. Article in Journal/Newspaper Antarc* Antarctic Science Antarctica antarcticus Gould Bay Weddell Sea Cambridge University Press Weddell Sea Weddell Vestkapp ENVELOPE(-19.000,-19.000,-72.750,-72.750) Gould Bay ENVELOPE(-44.000,-44.000,-78.167,-78.167) Antarctic Science 2 2 129 137 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
The demersal fish fauna of the southern and eastern Weddell Sea is described. The following species were recorded for the first time in this area: Aethotaxis mitopteryx, Bathyraja eatoni, B. Maccaini, B . sp2 (FAO-list), Bathydraco marri, Dissostichus mawsoni, Macrourus holotrachys, Muraenolepis sp., Notothenia coriiceps, Notothenia kempi, Psilodraco spec. and Trematomus nicolai . In terms of biomass the dominant species on the very narrow eastern continental shelf were Chionodraco myersi (49%), Trematomus eulepidotus (11%), C. hamatus (7%), T. lepidorhinus (6%), Pagetopsis maculatus (5%) and T. scotti, Cryodraco antarcticus, Cygnodraco mawsoni and Pleuragramma antarcticum (4% each). The highest density of individuals and greatest biomass was found between 400 and 650 m water depth. Here, C. myersi, T. eulepidotus and T. lepidorhinus dominated the catches. The shallow shelf area was inhabited by smaller species such as T. scotti, T. centronotus, P. maculatus, Artedidraco skottsbergii, A. shackletoni , and Prionodraco evansii . In the southern Weddell Sea Akarotaxis nudiceps, Dolloidraco longedorsalis, Gerlachea australis, Pleuragramma antarcticum , and Trematomus loennbergi were dominant. Members of the Channichthyidae occurred only occasionally, most of these are Dacodraco hunteri . The biomass of the demersal fish fauna was estimated to be 0.3 to 1.6 t km −2 on the Vestkapp shelf and 0.1 to 0.4 t km −2 for Gould Bay. Biomass values greater than 1.0 t km −2 were found at the shelf edge. |
format |
Article in Journal/Newspaper |
author |
Ekau, Werner |
spellingShingle |
Ekau, Werner Demersal fish fauna of the Weddell Sea, Antarctica |
author_facet |
Ekau, Werner |
author_sort |
Ekau, Werner |
title |
Demersal fish fauna of the Weddell Sea, Antarctica |
title_short |
Demersal fish fauna of the Weddell Sea, Antarctica |
title_full |
Demersal fish fauna of the Weddell Sea, Antarctica |
title_fullStr |
Demersal fish fauna of the Weddell Sea, Antarctica |
title_full_unstemmed |
Demersal fish fauna of the Weddell Sea, Antarctica |
title_sort |
demersal fish fauna of the weddell sea, antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
1990 |
url |
http://dx.doi.org/10.1017/s0954102090000165 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102090000165 |
long_lat |
ENVELOPE(-19.000,-19.000,-72.750,-72.750) ENVELOPE(-44.000,-44.000,-78.167,-78.167) |
geographic |
Weddell Sea Weddell Vestkapp Gould Bay |
geographic_facet |
Weddell Sea Weddell Vestkapp Gould Bay |
genre |
Antarc* Antarctic Science Antarctica antarcticus Gould Bay Weddell Sea |
genre_facet |
Antarc* Antarctic Science Antarctica antarcticus Gould Bay Weddell Sea |
op_source |
Antarctic Science volume 2, issue 2, page 129-137 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102090000165 |
container_title |
Antarctic Science |
container_volume |
2 |
container_issue |
2 |
container_start_page |
129 |
op_container_end_page |
137 |
_version_ |
1811632948563148800 |