Distribution of larval and juvenile Nototheniops larseni and Pleuragramma antarcticum off the Antarctic Peninsula in relation to oceanographic conditions
The vertical and spatial distribution of Pleuragramma antarcticum and Nototheniops larseni in the Bransfield Strait was studied during the BIOANTAR 93 cruise performed from RV >Hespérides> in Antarctic summer 1992/93. A multiple plankton net (Bioness) and a Bongo net were used to collect sampl...
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Muséum national d'Histoire naturelle (France)
1998
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ftcsic:oai:digital.csic.es:10261/85198 2024-02-11T09:57:10+01:00 Distribution of larval and juvenile Nototheniops larseni and Pleuragramma antarcticum off the Antarctic Peninsula in relation to oceanographic conditions Morales-Nin, Beatriz García, Marc A. López, Oswaldo 1998 http://hdl.handle.net/10261/85198 en eng Muséum national d'Histoire naturelle (France) issn: 0399-0974 Cybium 22: 69- 81 (1998) http://hdl.handle.net/10261/85198 none artículo http://purl.org/coar/resource_type/c_6501 1998 ftcsic 2024-01-16T09:53:26Z The vertical and spatial distribution of Pleuragramma antarcticum and Nototheniops larseni in the Bransfield Strait was studied during the BIOANTAR 93 cruise performed from RV >Hespérides> in Antarctic summer 1992/93. A multiple plankton net (Bioness) and a Bongo net were used to collect samples at 75 stations and one 24 h station. A number of depth layers (400-200, 200-150, 150-100, 50-20, 20-0 m) were sampled depending on the station. The water temperature and salinity profiles were analyzed to determine the association of species with water masses. Our data showed that the abundance of both Pleuragramma antarcticum and Nototheniops larseni is related to temperature. Abundance values exceeding 5 larvae/103m3 were seldom found when the temperature was less than 0°C. The relationship between larvae abundance and salinity seems to be inverse, although this result might be biased by the geographical distribution of stations and of sampled layers. In a 24 h station placed between Gerlache and Bransfield Strait, the most abundant fish larvae was Pleuragramma antarcticum, which were mainly found between 100-50 m and in warm waters (> 0°C). The daily migration of larvae in the vertical did not appear to be controlled by the oscillation of the pycnocline. Peer Reviewed Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Bransfield Strait Digital.CSIC (Spanish National Research Council) Antarctic Antarctic Peninsula Bransfield Strait Gerlache ENVELOPE(99.033,99.033,-66.500,-66.500) The Antarctic |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
description |
The vertical and spatial distribution of Pleuragramma antarcticum and Nototheniops larseni in the Bransfield Strait was studied during the BIOANTAR 93 cruise performed from RV >Hespérides> in Antarctic summer 1992/93. A multiple plankton net (Bioness) and a Bongo net were used to collect samples at 75 stations and one 24 h station. A number of depth layers (400-200, 200-150, 150-100, 50-20, 20-0 m) were sampled depending on the station. The water temperature and salinity profiles were analyzed to determine the association of species with water masses. Our data showed that the abundance of both Pleuragramma antarcticum and Nototheniops larseni is related to temperature. Abundance values exceeding 5 larvae/103m3 were seldom found when the temperature was less than 0°C. The relationship between larvae abundance and salinity seems to be inverse, although this result might be biased by the geographical distribution of stations and of sampled layers. In a 24 h station placed between Gerlache and Bransfield Strait, the most abundant fish larvae was Pleuragramma antarcticum, which were mainly found between 100-50 m and in warm waters (> 0°C). The daily migration of larvae in the vertical did not appear to be controlled by the oscillation of the pycnocline. Peer Reviewed |
format |
Article in Journal/Newspaper |
author |
Morales-Nin, Beatriz García, Marc A. López, Oswaldo |
spellingShingle |
Morales-Nin, Beatriz García, Marc A. López, Oswaldo Distribution of larval and juvenile Nototheniops larseni and Pleuragramma antarcticum off the Antarctic Peninsula in relation to oceanographic conditions |
author_facet |
Morales-Nin, Beatriz García, Marc A. López, Oswaldo |
author_sort |
Morales-Nin, Beatriz |
title |
Distribution of larval and juvenile Nototheniops larseni and Pleuragramma antarcticum off the Antarctic Peninsula in relation to oceanographic conditions |
title_short |
Distribution of larval and juvenile Nototheniops larseni and Pleuragramma antarcticum off the Antarctic Peninsula in relation to oceanographic conditions |
title_full |
Distribution of larval and juvenile Nototheniops larseni and Pleuragramma antarcticum off the Antarctic Peninsula in relation to oceanographic conditions |
title_fullStr |
Distribution of larval and juvenile Nototheniops larseni and Pleuragramma antarcticum off the Antarctic Peninsula in relation to oceanographic conditions |
title_full_unstemmed |
Distribution of larval and juvenile Nototheniops larseni and Pleuragramma antarcticum off the Antarctic Peninsula in relation to oceanographic conditions |
title_sort |
distribution of larval and juvenile nototheniops larseni and pleuragramma antarcticum off the antarctic peninsula in relation to oceanographic conditions |
publisher |
Muséum national d'Histoire naturelle (France) |
publishDate |
1998 |
url |
http://hdl.handle.net/10261/85198 |
long_lat |
ENVELOPE(99.033,99.033,-66.500,-66.500) |
geographic |
Antarctic Antarctic Peninsula Bransfield Strait Gerlache The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Bransfield Strait Gerlache The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Bransfield Strait |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Bransfield Strait |
op_relation |
issn: 0399-0974 Cybium 22: 69- 81 (1998) http://hdl.handle.net/10261/85198 |
op_rights |
none |
_version_ |
1790609130470244352 |