Population dynamics of Themisto gaudichaudii in Kerguelen Islands waters, Southern Indian Ocean
International audience Fieldwork was carried out at Kerguelen Islands. Two groups of stations in a coastal area, the Morbihan gulf, were surveyed. At both stations, macroplankton biomass ranged from 2.3 mg dry weight m(-3) to 89 mg dry weight m(-3) and consisted mostly of Themisto gaudichaudii with...
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ftsorbonneuniv:oai:HAL:hal-03494203v1 2024-09-15T17:43:44+00:00 Population dynamics of Themisto gaudichaudii in Kerguelen Islands waters, Southern Indian Ocean Labat, Jp Mayzaud, P Sabini, S Laboratoire d'océanographie de Villefranche (LOV) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) 2005 https://hal.science/hal-03494203 https://doi.org/10.1007/s00300-005-0003-7 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-005-0003-7 hal-03494203 https://hal.science/hal-03494203 doi:10.1007/s00300-005-0003-7 ISSN: 0722-4060 EISSN: 1432-2056 Polar Biology https://hal.science/hal-03494203 Polar Biology, 2005, 28 (10), pp.776-783. ⟨10.1007/s00300-005-0003-7⟩ [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2005 ftsorbonneuniv https://doi.org/10.1007/s00300-005-0003-7 2024-07-25T23:47:52Z International audience Fieldwork was carried out at Kerguelen Islands. Two groups of stations in a coastal area, the Morbihan gulf, were surveyed. At both stations, macroplankton biomass ranged from 2.3 mg dry weight m(-3) to 89 mg dry weight m(-3) and consisted mostly of Themisto gaudichaudii with values ranging from 1.9 mg dry weight m(-3) to 50.6 mg dry weight m(-3). Biomass was high for sub-Antarctic waters with marked seasonal and inter-zone differences. Biomass minima were observed at the end of the winter, from September to November, while maxima were recorded in summer and in early fall at the beginning of the year between January and April. T. gaudichaudii showed a recruitment of new size classes, mainly from November to January, followed by a rapid growth phase in summer, which slowed down during the southern winter period. Individuals breed after 1 year. Large individuals, older than 1 year, were not a significant presence in the gulf of Morbihan. The main pattern of the population dynamics were characterised by an univoltine life cycle with a very high biomass marked by a strong seasonal signal linked with the hydrological and trophic parameters of the Gulf. Article in Journal/Newspaper Antarc* Antarctic Kerguelen Islands Polar Biology HAL Sorbonne Université Polar Biology 28 10 776 783 |
institution |
Open Polar |
collection |
HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
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[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Labat, Jp Mayzaud, P Sabini, S Population dynamics of Themisto gaudichaudii in Kerguelen Islands waters, Southern Indian Ocean |
topic_facet |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience Fieldwork was carried out at Kerguelen Islands. Two groups of stations in a coastal area, the Morbihan gulf, were surveyed. At both stations, macroplankton biomass ranged from 2.3 mg dry weight m(-3) to 89 mg dry weight m(-3) and consisted mostly of Themisto gaudichaudii with values ranging from 1.9 mg dry weight m(-3) to 50.6 mg dry weight m(-3). Biomass was high for sub-Antarctic waters with marked seasonal and inter-zone differences. Biomass minima were observed at the end of the winter, from September to November, while maxima were recorded in summer and in early fall at the beginning of the year between January and April. T. gaudichaudii showed a recruitment of new size classes, mainly from November to January, followed by a rapid growth phase in summer, which slowed down during the southern winter period. Individuals breed after 1 year. Large individuals, older than 1 year, were not a significant presence in the gulf of Morbihan. The main pattern of the population dynamics were characterised by an univoltine life cycle with a very high biomass marked by a strong seasonal signal linked with the hydrological and trophic parameters of the Gulf. |
author2 |
Laboratoire d'océanographie de Villefranche (LOV) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Labat, Jp Mayzaud, P Sabini, S |
author_facet |
Labat, Jp Mayzaud, P Sabini, S |
author_sort |
Labat, Jp |
title |
Population dynamics of Themisto gaudichaudii in Kerguelen Islands waters, Southern Indian Ocean |
title_short |
Population dynamics of Themisto gaudichaudii in Kerguelen Islands waters, Southern Indian Ocean |
title_full |
Population dynamics of Themisto gaudichaudii in Kerguelen Islands waters, Southern Indian Ocean |
title_fullStr |
Population dynamics of Themisto gaudichaudii in Kerguelen Islands waters, Southern Indian Ocean |
title_full_unstemmed |
Population dynamics of Themisto gaudichaudii in Kerguelen Islands waters, Southern Indian Ocean |
title_sort |
population dynamics of themisto gaudichaudii in kerguelen islands waters, southern indian ocean |
publisher |
HAL CCSD |
publishDate |
2005 |
url |
https://hal.science/hal-03494203 https://doi.org/10.1007/s00300-005-0003-7 |
genre |
Antarc* Antarctic Kerguelen Islands Polar Biology |
genre_facet |
Antarc* Antarctic Kerguelen Islands Polar Biology |
op_source |
ISSN: 0722-4060 EISSN: 1432-2056 Polar Biology https://hal.science/hal-03494203 Polar Biology, 2005, 28 (10), pp.776-783. ⟨10.1007/s00300-005-0003-7⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-005-0003-7 hal-03494203 https://hal.science/hal-03494203 doi:10.1007/s00300-005-0003-7 |
op_doi |
https://doi.org/10.1007/s00300-005-0003-7 |
container_title |
Polar Biology |
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28 |
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10 |
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776 |
op_container_end_page |
783 |
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1810490883402891264 |