Some Atlantic cod (Gadus morhua ) in the Baltic Sea visit hypoxic water briefly but often.

Neuenfeldt, S., Andersen, K.H. and Hinrichsen, Hans-Harald (2009) Some Atlantic cod (Gadus morhua ) in the Baltic Sea visit hypoxic water briefly but often. Journal of Fish Biology, 75 . pp. 290-294. DOI 10.1111/j.1095-8649.2009.02281.x.

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Abstract

Individual behaviour of Atlantic cod Gadus morhua in the presence of hypoxic water was measured in situ in the vertically stratified Bornholm Basin of the Baltic Sea. Considering all recaptured individuals, the use of hypoxic habitat was comparable to data derived by traditional survey data, but some G. morhua had migrated towards the centre of the c.100 m deep basin and spent about a third of their time at oxygen saturation <50%, possibly to forage on zoobenthos. Maximal residence time per visit in such hypoxic water was limited to a few hours, allowing for the digestion of consumed prey items in waters with sufficient dissolved oxygen.

Document Type: Article
Keywords: behaviour, data storage tags, hypoxia, oxygen thresholds; ALKOR
Research affiliation: OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EV Marine Evolutionary Ecology
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1111/j.1095-8649.2009.02281.x
ISSN: 0022-1112
Date Deposited: 26 Nov 2009 14:51
Last Modified: 14 Sep 2017 11:18
URI: http://oceanrep.geomar.de/id/eprint/2457

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