Bathymetric food habit changes in the antarctic fish, Notothenia gibberifrons Lönnberg. (Pisces: Nototheniidae).

The dietary composition of the antarctic fish Notothenia gibberifrons Lönnberg in a depth gradient was studied, from sea level until 200 meters in South Bay, Doumer Island, West Antarctic. The diet of this species varied across the depth gradient. Stomachs from specimens captured between the surface...

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Bibliographic Details
Published in:Hydrobiologia
Main Authors: Moreno, Carlos A., Osorio, Hector H.
Format: Article in Journal/Newspaper
Language:English
Published: Kluwer Academic Publishers 1977
Subjects:
antarctic fishes
food habit
Notothenia gibberifrons
Antarctic
Doumer
Doumer Island
South Bay
The Antarctic
Antarc*
Online Access:https://doi.org/10.1007/BF00021055
https://repositorio.uchile.cl/handle/2250/156643
Description
Summary:The dietary composition of the antarctic fish Notothenia gibberifrons Lönnberg in a depth gradient was studied, from sea level until 200 meters in South Bay, Doumer Island, West Antarctic. The diet of this species varied across the depth gradient. Stomachs from specimens captured between the surface and 100 m. depth usually contained mobile benthic organisms, principally Amphipods. Those from below 150 m. had eaten almost sesile benthic organisms, principally Bivalvia species. Specimens sampled in the layer between the above-mentioned levels contained a mixture of items, some corresponding to the upper and others to the lower sections. Based on the presented evidence the feeding pattern of this species is discussed. © 1977 Dr. W. Junk b.v. Publishers.

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