Trophic ecology of demersal fish community north of the South Shetland Islands, with notes on the ecological role of the krill
Bottom trawls at 8 stations and at depths from about 200 to 400m were carried out to the north of the South Shetland Islands. Thirty-six species of fish belonging to 9 families were caught. Notothenia gibberifrons, Chionodraco rastrospinosus, Gymnoscopelus nicholsi and 2 Rajidae made up about 80% of...
Main Author: | |
---|---|
Format: | Report |
Language: | English |
Published: |
Japan Marine Fishery Resource Research Center
1983
|
Subjects: | |
Online Access: | https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1443 http://id.nii.ac.jp/1291/00001443/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1443&item_no=1&attribute_id=18&file_no=1 |
id |
ftnipr:oai:nipr.repo.nii.ac.jp:00001443 |
---|---|
record_format |
openpolar |
spelling |
ftnipr:oai:nipr.repo.nii.ac.jp:00001443 2023-05-15T13:47:59+02:00 Trophic ecology of demersal fish community north of the South Shetland Islands, with notes on the ecological role of the krill Masanori Takahashi 1983-07 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1443 http://id.nii.ac.jp/1291/00001443/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1443&item_no=1&attribute_id=18&file_no=1 en eng Japan Marine Fishery Resource Research Center https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1443 http://id.nii.ac.jp/1291/00001443/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 27, 183-192(1983-07) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1443&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1983 ftnipr 2022-11-12T19:42:17Z Bottom trawls at 8 stations and at depths from about 200 to 400m were carried out to the north of the South Shetland Islands. Thirty-six species of fish belonging to 9 families were caught. Notothenia gibberifrons, Chionodraco rastrospinosus, Gymnoscopelus nicholsi and 2 Rajidae made up about 80% of the number of fish caught. The dominant species was N. gibberifrons accounting for 51.9% of the total number of individuals and 44.7% of the total weight. It is shown that the krill (Euphausia superba, DANA) is an important food item in the diet of these demersal fish and that while many nototheniid species supplement their diet with benthic organisms, channichthyid species supplement their diets with other fish. The significance of these results is discussed in relation to the distribution of the krill and to the ecological role of the krill in the Antarctic food chain. Report Antarc* Antarctic Euphausia superba Memoirs of National Institute of Polar Research Polar Research South Shetland Islands National Institute of Polar Research Repository, Japan Antarctic The Antarctic South Shetland Islands |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
description |
Bottom trawls at 8 stations and at depths from about 200 to 400m were carried out to the north of the South Shetland Islands. Thirty-six species of fish belonging to 9 families were caught. Notothenia gibberifrons, Chionodraco rastrospinosus, Gymnoscopelus nicholsi and 2 Rajidae made up about 80% of the number of fish caught. The dominant species was N. gibberifrons accounting for 51.9% of the total number of individuals and 44.7% of the total weight. It is shown that the krill (Euphausia superba, DANA) is an important food item in the diet of these demersal fish and that while many nototheniid species supplement their diet with benthic organisms, channichthyid species supplement their diets with other fish. The significance of these results is discussed in relation to the distribution of the krill and to the ecological role of the krill in the Antarctic food chain. |
format |
Report |
author |
Masanori Takahashi |
spellingShingle |
Masanori Takahashi Trophic ecology of demersal fish community north of the South Shetland Islands, with notes on the ecological role of the krill |
author_facet |
Masanori Takahashi |
author_sort |
Masanori Takahashi |
title |
Trophic ecology of demersal fish community north of the South Shetland Islands, with notes on the ecological role of the krill |
title_short |
Trophic ecology of demersal fish community north of the South Shetland Islands, with notes on the ecological role of the krill |
title_full |
Trophic ecology of demersal fish community north of the South Shetland Islands, with notes on the ecological role of the krill |
title_fullStr |
Trophic ecology of demersal fish community north of the South Shetland Islands, with notes on the ecological role of the krill |
title_full_unstemmed |
Trophic ecology of demersal fish community north of the South Shetland Islands, with notes on the ecological role of the krill |
title_sort |
trophic ecology of demersal fish community north of the south shetland islands, with notes on the ecological role of the krill |
publisher |
Japan Marine Fishery Resource Research Center |
publishDate |
1983 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1443 http://id.nii.ac.jp/1291/00001443/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1443&item_no=1&attribute_id=18&file_no=1 |
geographic |
Antarctic The Antarctic South Shetland Islands |
geographic_facet |
Antarctic The Antarctic South Shetland Islands |
genre |
Antarc* Antarctic Euphausia superba Memoirs of National Institute of Polar Research Polar Research South Shetland Islands |
genre_facet |
Antarc* Antarctic Euphausia superba Memoirs of National Institute of Polar Research Polar Research South Shetland Islands |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1443 http://id.nii.ac.jp/1291/00001443/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 27, 183-192(1983-07) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1443&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766248273299898368 |