Herbert, Neill A., Goodman, Mark and Kunzmann, Andreas ORCID: https://orcid.org/0000-0002-9500-4332 (2012) The low O2avoidance strategy of the Cape silversideAtherina breviceps(Teleostei). Marine and Freshwater Behaviour and Physiology, 45 (3). pp. 199-208. DOI https://doi.org/10.1080/10236244.2012.716586.

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Abstract

Aquatic low O2 (hypoxia) is not uncommon but mobile organisms do not have to suffer low O2 stress if they engage in a safe avoidance strategy by moving away early and quickly. Within a behavioural choice chamber system at 20°C, the Cape silverside (Atherina breviceps), a common species from South Africa, was found to seek out and select high O2 saturated water when water O2 saturations declined to 23% saturation. Atherina breviceps also avoided low O2 with a modest increase in swimming speed but no correlation between hypoxic swimming speed and avoidance could be found implying that heightened swimming speed does not necessarily lead to faster avoidance on an individual basis. The overall low O2 response of A. breviceps was seen to reflect an effective avoidance strategy that is compatible with the survival of this species facing low O2 challenge in the wild.

Document Type:	Article
Programme Area:	PA1
Research affiliation:	Ecology > Experimental Aquaculture
Refereed:	Yes
Open Access Journal?:	No
DOI:	https://doi.org/10.1080/10236244.2012.716586
ISSN:	1023-6244
Date Deposited:	30 Oct 2025 11:40
Last Modified:	30 Oct 2025 11:40
URI:	https://cris.leibniz-zmt.de/id/eprint/5908

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