First data on the daily food consumption by Antarctic fish Trematomus hansoni (Actinopterygii: Perciformes: Nototheniidae) in captivity

In this study, we present first observations on the feeding behaviour of an Antarctic notothenioid fish, the striped rockcod, Trematomus hansoni Boulenger, 1902. During 13 days of feeding experiment onboard RV Polarstern, the striped rockcod consumed an average of 1.0% BM · day–1 of Loligo reynaudii...

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Bibliographic Details
Published in:Acta Ichthyologica et Piscatoria
Main Authors: R. Gorniak, E. Riginella, N. Koschnick, V.V. Laptikhovsky
Format: Article in Journal/Newspaper
Language:English
Published: Pensoft Publishers 2020
Subjects:
daily ration
Nothotenioidei
captivity
temperatu
Aquaculture. Fisheries. Angling
SH1-691
Antarctic
Antarc*
Online Access:https://doi.org/10.3750/AIEP/02739
https://doaj.org/article/b94270f3854142329a80d8d94d5219dd
Description
Summary:In this study, we present first observations on the feeding behaviour of an Antarctic notothenioid fish, the striped rockcod, Trematomus hansoni Boulenger, 1902. During 13 days of feeding experiment onboard RV Polarstern, the striped rockcod consumed an average of 1.0% BM · day–1 of Loligo reynaudii at the temperature around +1.0°C. The daily food ration of T. hansoni turned out to be lower than predicted by theoretical equations derived for fish living at higher temperatures but was similar to values observed in other Antarctic fish in captivity.

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