Behavioural strategies for feeding of six species of the Antarctic fish family Nototheniidae (Pisces, Notothenioidei) in a tank
The feeding strategies of six Nototheniid fishes, Notothenia coriiceps, Notothenia neglecta, Trematomus bernacchii, Pagothenia borchgrevinki, Lepidonotothen nudifrons and Pleuragramma antarcticum, were studied in tanks, under controlled environmental conditions. These fish were caught in Admiralty B...
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ftdoajarticles:oai:doaj.org/article:a93c45daeb2f41fb8c62c2568c9dbc0f 2023-05-15T13:56:14+02:00 Behavioural strategies for feeding of six species of the Antarctic fish family Nototheniidae (Pisces, Notothenioidei) in a tank Edith Fanta Ana Aparecida Meyer 1998-11-01T00:00:00Z https://doi.org/10.15094/00009052 https://doaj.org/article/a93c45daeb2f41fb8c62c2568c9dbc0f EN JA eng jpn National Institute of Polar Research http://doi.org/10.15094/00009052 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00009052 0085-7289 2432-079X https://doaj.org/article/a93c45daeb2f41fb8c62c2568c9dbc0f Antarctic Record, Vol 42, Iss 3, Pp 227-243 (1998) Geography (General) G1-922 article 1998 ftdoajarticles https://doi.org/10.15094/00009052 2022-12-31T10:19:25Z The feeding strategies of six Nototheniid fishes, Notothenia coriiceps, Notothenia neglecta, Trematomus bernacchii, Pagothenia borchgrevinki, Lepidonotothen nudifrons and Pleuragramma antarcticum, were studied in tanks, under controlled environmental conditions. These fish were caught in Admiralty Bay, King George Island, during the Antarctic summer. Although P. antarcticum preyed only in the water column, the remaining five species fed not only in the water column but also at the bottom. Persecutions of prey were observed in T. bernacchii, L. nudifrons, N. neglecta and P. antarcticum. The sequence for feeding always started from resting except for P. antarcticum and N. coriiceps. Each feeding sequence lead to the ingestion of one fish each time by N. neglecta, T. bernacchii and P. borchgrevinki, but N. coriiceps was able to catch and ingest several fish during one period of random swimming. Many krill and/or amphipods were usually ingested by all predators during one feeding action, but T. bernacchii also caught them one by one. T. bernacchii, N. coriiceps, N. neglecta and P. antarcticum sometimes rejected fish and/or amphipods after apprehension. The competition for food in the tanks seemed to be minimised by differences in feeding strategies. Article in Journal/Newspaper Antarc* Antarctic King George Island Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic King George Island Admiralty Bay |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Japanese |
topic |
Geography (General) G1-922 |
spellingShingle |
Geography (General) G1-922 Edith Fanta Ana Aparecida Meyer Behavioural strategies for feeding of six species of the Antarctic fish family Nototheniidae (Pisces, Notothenioidei) in a tank |
topic_facet |
Geography (General) G1-922 |
description |
The feeding strategies of six Nototheniid fishes, Notothenia coriiceps, Notothenia neglecta, Trematomus bernacchii, Pagothenia borchgrevinki, Lepidonotothen nudifrons and Pleuragramma antarcticum, were studied in tanks, under controlled environmental conditions. These fish were caught in Admiralty Bay, King George Island, during the Antarctic summer. Although P. antarcticum preyed only in the water column, the remaining five species fed not only in the water column but also at the bottom. Persecutions of prey were observed in T. bernacchii, L. nudifrons, N. neglecta and P. antarcticum. The sequence for feeding always started from resting except for P. antarcticum and N. coriiceps. Each feeding sequence lead to the ingestion of one fish each time by N. neglecta, T. bernacchii and P. borchgrevinki, but N. coriiceps was able to catch and ingest several fish during one period of random swimming. Many krill and/or amphipods were usually ingested by all predators during one feeding action, but T. bernacchii also caught them one by one. T. bernacchii, N. coriiceps, N. neglecta and P. antarcticum sometimes rejected fish and/or amphipods after apprehension. The competition for food in the tanks seemed to be minimised by differences in feeding strategies. |
format |
Article in Journal/Newspaper |
author |
Edith Fanta Ana Aparecida Meyer |
author_facet |
Edith Fanta Ana Aparecida Meyer |
author_sort |
Edith Fanta |
title |
Behavioural strategies for feeding of six species of the Antarctic fish family Nototheniidae (Pisces, Notothenioidei) in a tank |
title_short |
Behavioural strategies for feeding of six species of the Antarctic fish family Nototheniidae (Pisces, Notothenioidei) in a tank |
title_full |
Behavioural strategies for feeding of six species of the Antarctic fish family Nototheniidae (Pisces, Notothenioidei) in a tank |
title_fullStr |
Behavioural strategies for feeding of six species of the Antarctic fish family Nototheniidae (Pisces, Notothenioidei) in a tank |
title_full_unstemmed |
Behavioural strategies for feeding of six species of the Antarctic fish family Nototheniidae (Pisces, Notothenioidei) in a tank |
title_sort |
behavioural strategies for feeding of six species of the antarctic fish family nototheniidae (pisces, notothenioidei) in a tank |
publisher |
National Institute of Polar Research |
publishDate |
1998 |
url |
https://doi.org/10.15094/00009052 https://doaj.org/article/a93c45daeb2f41fb8c62c2568c9dbc0f |
geographic |
Antarctic The Antarctic King George Island Admiralty Bay |
geographic_facet |
Antarctic The Antarctic King George Island Admiralty Bay |
genre |
Antarc* Antarctic King George Island |
genre_facet |
Antarc* Antarctic King George Island |
op_source |
Antarctic Record, Vol 42, Iss 3, Pp 227-243 (1998) |
op_relation |
http://doi.org/10.15094/00009052 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00009052 0085-7289 2432-079X https://doaj.org/article/a93c45daeb2f41fb8c62c2568c9dbc0f |
op_doi |
https://doi.org/10.15094/00009052 |
_version_ |
1766263591097335808 |