Trophic diversity within the eastern Weddell Sea amphipod community
Amphipod crustaceans form one of the most diversified animal groups within the Antarctic macrozoobenthos, both from the taxonomic point of view (more than 800 species have been recorded in the Southern Ocean) as by niche occupation and at the community level. Thus, amphipods are likely to play an im...
Main Authors: | , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2001
|
Subjects: | |
Online Access: | http://www.vliz.be/nl/open-marien-archief?module=ref&refid=210960 |
id |
ftvliz:oai:oma.vliz.be:210960 |
---|---|
record_format |
openpolar |
spelling |
ftvliz:oai:oma.vliz.be:210960 2023-05-15T13:33:16+02:00 Trophic diversity within the eastern Weddell Sea amphipod community Dauby, P. Scailteur, Y. De Broyer, C. 2001 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=210960 en eng info:eu-repo/semantics/altIdentifier/wos/000168065900008 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1023/A:1017596120422 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=210960 info:eu-repo/semantics/restrictedAccess %3Ci%3EHydrobiologia+443%281-3%29%3C%2Fi%3E%3A+69-86.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1023%2FA%3A1017596120422%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1023%2FA%3A1017596120422%3C%2Fa%3E Amphipoda [amphipods] info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2001 ftvliz https://doi.org/10.1023/A:1017596120422 2022-05-01T13:34:10Z Amphipod crustaceans form one of the most diversified animal groups within the Antarctic macrozoobenthos, both from the taxonomic point of view (more than 800 species have been recorded in the Southern Ocean) as by niche occupation and at the community level. Thus, amphipods are likely to play an important role in the organic matter fluxes that occur on the Antarctic sea floor. The dietary behaviour of these peracarids is still poorly known, and only few species have been analysed. This paper describes the trophic preferences of some dominant amphipod species of the Eastern Weddell Sea benthos, deduced from stomach content analyses and behavioural observations in aquaria. More than 1000 specimens, belonging to 40 species (representing 27 genera and 15 families) were dissected; and several thousands of individuals were kept in aquaria for 6-9 weeks and presented with various potential foods. These two approaches revealed at least eight different feeding types: suspension-feeding, deposit-feeding, deposit-feeding coupled with predation, opportunistic predation, micropredatory browsing, macropredation coupled with scavenging, opportunistic necrophagy and true necrophagy. These different behaviours cover almost all the possible feeding types with the exception of macroherbivorous browsing. Among the eight described feeding types, no particular one is dominant. In the same way, types involving microphagy and macrophagy are equally represented. Predatory types (opportunistic or exclusive) account for 64% of the species analysed, while scavenging types (facultative or obligate) account for 60%. The overlap suggests that many amphipod species have a wide dietary spectrum and are able to take advantage of different food resources. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Weddell Sea Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) Antarctic Southern Ocean The Antarctic Weddell Sea Weddell |
institution |
Open Polar |
collection |
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
op_collection_id |
ftvliz |
language |
English |
topic |
Amphipoda [amphipods] |
spellingShingle |
Amphipoda [amphipods] Dauby, P. Scailteur, Y. De Broyer, C. Trophic diversity within the eastern Weddell Sea amphipod community |
topic_facet |
Amphipoda [amphipods] |
description |
Amphipod crustaceans form one of the most diversified animal groups within the Antarctic macrozoobenthos, both from the taxonomic point of view (more than 800 species have been recorded in the Southern Ocean) as by niche occupation and at the community level. Thus, amphipods are likely to play an important role in the organic matter fluxes that occur on the Antarctic sea floor. The dietary behaviour of these peracarids is still poorly known, and only few species have been analysed. This paper describes the trophic preferences of some dominant amphipod species of the Eastern Weddell Sea benthos, deduced from stomach content analyses and behavioural observations in aquaria. More than 1000 specimens, belonging to 40 species (representing 27 genera and 15 families) were dissected; and several thousands of individuals were kept in aquaria for 6-9 weeks and presented with various potential foods. These two approaches revealed at least eight different feeding types: suspension-feeding, deposit-feeding, deposit-feeding coupled with predation, opportunistic predation, micropredatory browsing, macropredation coupled with scavenging, opportunistic necrophagy and true necrophagy. These different behaviours cover almost all the possible feeding types with the exception of macroherbivorous browsing. Among the eight described feeding types, no particular one is dominant. In the same way, types involving microphagy and macrophagy are equally represented. Predatory types (opportunistic or exclusive) account for 64% of the species analysed, while scavenging types (facultative or obligate) account for 60%. The overlap suggests that many amphipod species have a wide dietary spectrum and are able to take advantage of different food resources. |
format |
Article in Journal/Newspaper |
author |
Dauby, P. Scailteur, Y. De Broyer, C. |
author_facet |
Dauby, P. Scailteur, Y. De Broyer, C. |
author_sort |
Dauby, P. |
title |
Trophic diversity within the eastern Weddell Sea amphipod community |
title_short |
Trophic diversity within the eastern Weddell Sea amphipod community |
title_full |
Trophic diversity within the eastern Weddell Sea amphipod community |
title_fullStr |
Trophic diversity within the eastern Weddell Sea amphipod community |
title_full_unstemmed |
Trophic diversity within the eastern Weddell Sea amphipod community |
title_sort |
trophic diversity within the eastern weddell sea amphipod community |
publishDate |
2001 |
url |
http://www.vliz.be/nl/open-marien-archief?module=ref&refid=210960 |
geographic |
Antarctic Southern Ocean The Antarctic Weddell Sea Weddell |
geographic_facet |
Antarctic Southern Ocean The Antarctic Weddell Sea Weddell |
genre |
Antarc* Antarctic Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Southern Ocean Weddell Sea |
op_source |
%3Ci%3EHydrobiologia+443%281-3%29%3C%2Fi%3E%3A+69-86.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1023%2FA%3A1017596120422%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1023%2FA%3A1017596120422%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000168065900008 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1023/A:1017596120422 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=210960 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1023/A:1017596120422 |
_version_ |
1766040575656591360 |