Environmental influences on zooplankton and micronekton distribution in the Bransfield Strait and adjacent waters
17 pages, 12 figures, 4 tables
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| Format: | artículo biblioteca |
| Language: | English |
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Springer
2008-01-25
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| Subjects: | Antarctica, Fish larvae and juveniles, Salps, Krill, Distribution, Abundance, Size structure, Hydrography, Density front, Segregation, |
| Online Access: | http://hdl.handle.net/10261/15502 |
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dig-icm-es-10261-155022022-01-07T09:23:20Z Environmental influences on zooplankton and micronekton distribution in the Bransfield Strait and adjacent waters Catalán, Ignacio Alberto Morales-Nin, Beatriz Company, Joan B. Rotllant, Guiomar Palomera, Isabel Emelianov, Mikhail Antarctica Fish larvae and juveniles Salps Krill Distribution Abundance Size structure Hydrography Density front Segregation 17 pages, 12 figures, 4 tables The spatial distribution, biomass and size structure of key mesozooplankton species and micronekton in the Bransfield Strait (Antarctica) are described in relation to environmental variables during the austral summer 2001. Stratified (BIONESS) biological sampling at five depth-ranges and CTD casts were performed at 40 stations, including a cross-Strait transect. Six families, 11 genera and 16 species composed the total catch of larval and juvenile fish, which were more abundant in the upper 75 m. Trematomus scotti was the most abundant fish and large individuals dominated at depths >75 m. The fish distribution patterns were associated with the main water masses in the area and with bottom depth. Spatial segregation in density and biomass of krill (Euphausia superba) and salps (Salpa thompsoni) was observed at a relatively small scale, in relation to the main water masses. Also, size-related spatial segregation was found in krill. The present study suggests that the spatial distribution of krill, salps and early life stages of fish, are influenced by the main water masses in the Strait, and that species may adapt their reproductive strategies not only to seasonal production peaks, but to transport processes within water bodies that maximise their fitness through optimum temperature and/or trophic environments This work was funded by the project REN2000-2987-E/ANT of the Spanish Ministerio de Educación y Ciencia Peer reviewed 2009-07-29T15:30:03Z 2009-07-29T15:30:03Z 2008-01-25 artículo http://purl.org/coar/resource_type/c_6501 Polar Biology 31(6): 691-707 (2008) 0722-4060 http://hdl.handle.net/10261/15502 10.1007/s00300-008-0408-1 1432-2056 en https://doi.org/10.1007/s00300-008-0408-1 none 131118 bytes application/pdf Springer |
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ES |
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biblioteca |
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Europa del Sur |
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Biblioteca del ICM España |
| language |
English |
| topic |
Antarctica Fish larvae and juveniles Salps Krill Distribution Abundance Size structure Hydrography Density front Segregation Antarctica Fish larvae and juveniles Salps Krill Distribution Abundance Size structure Hydrography Density front Segregation |
| spellingShingle |
Antarctica Fish larvae and juveniles Salps Krill Distribution Abundance Size structure Hydrography Density front Segregation Antarctica Fish larvae and juveniles Salps Krill Distribution Abundance Size structure Hydrography Density front Segregation Catalán, Ignacio Alberto Morales-Nin, Beatriz Company, Joan B. Rotllant, Guiomar Palomera, Isabel Emelianov, Mikhail Environmental influences on zooplankton and micronekton distribution in the Bransfield Strait and adjacent waters |
| description |
17 pages, 12 figures, 4 tables |
| format |
artículo |
| topic_facet |
Antarctica Fish larvae and juveniles Salps Krill Distribution Abundance Size structure Hydrography Density front Segregation |
| author |
Catalán, Ignacio Alberto Morales-Nin, Beatriz Company, Joan B. Rotllant, Guiomar Palomera, Isabel Emelianov, Mikhail |
| author_facet |
Catalán, Ignacio Alberto Morales-Nin, Beatriz Company, Joan B. Rotllant, Guiomar Palomera, Isabel Emelianov, Mikhail |
| author_sort |
Catalán, Ignacio Alberto |
| title |
Environmental influences on zooplankton and micronekton distribution in the Bransfield Strait and adjacent waters |
| title_short |
Environmental influences on zooplankton and micronekton distribution in the Bransfield Strait and adjacent waters |
| title_full |
Environmental influences on zooplankton and micronekton distribution in the Bransfield Strait and adjacent waters |
| title_fullStr |
Environmental influences on zooplankton and micronekton distribution in the Bransfield Strait and adjacent waters |
| title_full_unstemmed |
Environmental influences on zooplankton and micronekton distribution in the Bransfield Strait and adjacent waters |
| title_sort |
environmental influences on zooplankton and micronekton distribution in the bransfield strait and adjacent waters |
| publisher |
Springer |
| publishDate |
2008-01-25 |
| url |
http://hdl.handle.net/10261/15502 |
| work_keys_str_mv |
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| _version_ |
1777665673135128576 |