Egg and fecal pellet production rates of the marine copepod Metridia gerlachei in the NW of the Antarctic Peninsula
7 pages, 7 figures, 3 tables Egg and faecal pellet production rates, and their functional response to food and temperature, were measured for the Antarctic copepod Metridia gerlachei during January 1996. The study area comprised the Gerlache and Bransfield Straits and Drake Passage. The highest rate...
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Online Access: | http://hdl.handle.net/10261/180944 https://doi.org/10.1007/s003000050188 https://doi.org/10.13039/501100007273 |
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ftcsic:oai:digital.csic.es:10261/180944 2024-02-11T09:56:57+01:00 Egg and fecal pellet production rates of the marine copepod Metridia gerlachei in the NW of the Antarctic Peninsula Calbet, Albert Irigoien, Xabier Comisión Interministerial de Ciencia y Tecnología, CICYT (España) 1997-09 http://hdl.handle.net/10261/180944 https://doi.org/10.1007/s003000050188 https://doi.org/10.13039/501100007273 unknown Springer https://doi.org/10.1007/s003000050188 Sí issn: 0722-4060 e-issn: 1432-2056 doi:10.1007/s003000050188 Polar Biology 18(4): 273-279 (1997) http://hdl.handle.net/10261/180944 http://dx.doi.org/10.13039/501100007273 none artículo http://purl.org/coar/resource_type/c_6501 1997 ftcsic https://doi.org/10.1007/s00300005018810.13039/501100007273 2024-01-16T10:38:45Z 7 pages, 7 figures, 3 tables Egg and faecal pellet production rates, and their functional response to food and temperature, were measured for the Antarctic copepod Metridia gerlachei during January 1996. The study area comprised the Gerlache and Bransfield Straits and Drake Passage. The highest rates of “in situ” egg and faecal pellet production were observed in Gerlache stations, coinciding with chlorophyll a concentrations approaching food saturation levels. In the Bransfield and Drake stations, with very low chlorophyll concentrations, the rates of egg production were either very low, or no eggs were produced. Egg production rates, although well correlated with “in situ” chlorophyll values, appeared to be independent of food concentration on a short time-scale (24-h incubations), while the production of faecal pellets was closely related to food abundance in the same experiments. In general, the rates of egg production were low, even at food saturation, with a very high individual variability. Although in the majority of Gerlache stations about 50% of total chlorophyll a corresponded to the phytoplankton size-fraction >10 μm, M. gerlachei feeds preferentially on the <10-μm fraction. Temperature had no clear effects on egg production rate but had a significant effect on pellet production rates, with maximum values at 2.5°C. These features appear to agree with the reproductive strategy attributed to the species, based on a relatively low rate of egg production extended over a long reproductive period This study was financially supported by grantANT92-1186 from the Spanish Interministry Commission of Science and Technology (CICYT) to R. Anadón, a doctoral fellow-ship from the Spanish Ministry of Universities and Research to A. Calbet., and a post-doctoral fellowship from the Basque Country Government to X. Irigoien Peer Reviewed Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Drake Passage Polar Biology Digital.CSIC (Spanish National Research Council) Antarctic Antarctic Peninsula Drake Passage Gerlache ENVELOPE(99.033,99.033,-66.500,-66.500) The Antarctic Polar Biology 18 4 273 279 |
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Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
description |
7 pages, 7 figures, 3 tables Egg and faecal pellet production rates, and their functional response to food and temperature, were measured for the Antarctic copepod Metridia gerlachei during January 1996. The study area comprised the Gerlache and Bransfield Straits and Drake Passage. The highest rates of “in situ” egg and faecal pellet production were observed in Gerlache stations, coinciding with chlorophyll a concentrations approaching food saturation levels. In the Bransfield and Drake stations, with very low chlorophyll concentrations, the rates of egg production were either very low, or no eggs were produced. Egg production rates, although well correlated with “in situ” chlorophyll values, appeared to be independent of food concentration on a short time-scale (24-h incubations), while the production of faecal pellets was closely related to food abundance in the same experiments. In general, the rates of egg production were low, even at food saturation, with a very high individual variability. Although in the majority of Gerlache stations about 50% of total chlorophyll a corresponded to the phytoplankton size-fraction >10 μm, M. gerlachei feeds preferentially on the <10-μm fraction. Temperature had no clear effects on egg production rate but had a significant effect on pellet production rates, with maximum values at 2.5°C. These features appear to agree with the reproductive strategy attributed to the species, based on a relatively low rate of egg production extended over a long reproductive period This study was financially supported by grantANT92-1186 from the Spanish Interministry Commission of Science and Technology (CICYT) to R. Anadón, a doctoral fellow-ship from the Spanish Ministry of Universities and Research to A. Calbet., and a post-doctoral fellowship from the Basque Country Government to X. Irigoien Peer Reviewed |
author2 |
Comisión Interministerial de Ciencia y Tecnología, CICYT (España) |
format |
Article in Journal/Newspaper |
author |
Calbet, Albert Irigoien, Xabier |
spellingShingle |
Calbet, Albert Irigoien, Xabier Egg and fecal pellet production rates of the marine copepod Metridia gerlachei in the NW of the Antarctic Peninsula |
author_facet |
Calbet, Albert Irigoien, Xabier |
author_sort |
Calbet, Albert |
title |
Egg and fecal pellet production rates of the marine copepod Metridia gerlachei in the NW of the Antarctic Peninsula |
title_short |
Egg and fecal pellet production rates of the marine copepod Metridia gerlachei in the NW of the Antarctic Peninsula |
title_full |
Egg and fecal pellet production rates of the marine copepod Metridia gerlachei in the NW of the Antarctic Peninsula |
title_fullStr |
Egg and fecal pellet production rates of the marine copepod Metridia gerlachei in the NW of the Antarctic Peninsula |
title_full_unstemmed |
Egg and fecal pellet production rates of the marine copepod Metridia gerlachei in the NW of the Antarctic Peninsula |
title_sort |
egg and fecal pellet production rates of the marine copepod metridia gerlachei in the nw of the antarctic peninsula |
publisher |
Springer |
publishDate |
1997 |
url |
http://hdl.handle.net/10261/180944 https://doi.org/10.1007/s003000050188 https://doi.org/10.13039/501100007273 |
long_lat |
ENVELOPE(99.033,99.033,-66.500,-66.500) |
geographic |
Antarctic Antarctic Peninsula Drake Passage Gerlache The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Drake Passage Gerlache The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Drake Passage Polar Biology |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Drake Passage Polar Biology |
op_relation |
https://doi.org/10.1007/s003000050188 Sí issn: 0722-4060 e-issn: 1432-2056 doi:10.1007/s003000050188 Polar Biology 18(4): 273-279 (1997) http://hdl.handle.net/10261/180944 http://dx.doi.org/10.13039/501100007273 |
op_rights |
none |
op_doi |
https://doi.org/10.1007/s00300005018810.13039/501100007273 |
container_title |
Polar Biology |
container_volume |
18 |
container_issue |
4 |
container_start_page |
273 |
op_container_end_page |
279 |
_version_ |
1790607304620507136 |