Feeding by the nototheniid fish, Pagothenia borchgrevinki on the ice-associated copepod, Paralabidocera antarctica

More than 90% of food items in the stomach contents of the nototheniid, Pagothenia borchgrevinki were found to be copepods and copepod nauplii. Most of the nauplii was identified as Paralabidocera antarctica. As this copepod lived in the sea ice feeding on ice algae, it was concluded that there is a...

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Bibliographic Details
Main Authors: Takao Hoshiai, Atsushi Tanimura, Mitsuo Fukuchi, Kentaro Watanabe
Format: Report
Language:English
Published: National Institute of Polar Research/National Institute of Polar Research/National Institute of Polar Research/National Institute of Polar Research 1989
Subjects:
Antarctic
The Antarctic
Antarc*
Antarctica
ice algae
Polar Biology
Proceedings of the NIPR Symposium on Polar Biology
Sea ice
Copepods
Online Access:https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=5050
http://id.nii.ac.jp/1291/00005050/
https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=5050&item_no=1&attribute_id=18&file_no=1
Description
Summary:More than 90% of food items in the stomach contents of the nototheniid, Pagothenia borchgrevinki were found to be copepods and copepod nauplii. Most of the nauplii was identified as Paralabidocera antarctica. As this copepod lived in the sea ice feeding on ice algae, it was concluded that there is a food chain, ice algae-P. antarctica-P. borchgrevinki in the Antarctic cryopelagic ecosystem. In feeding on nauplii, the fish preferred developed and larger individuals.

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