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Is scuba sampling a relevant method to study microhabitat in lakes? Examples and comparisons for three European species

Brosse, Sébastien and Laffaille, Pascal and Gabas, Stéphane and Lek, Sovan Is scuba sampling a relevant method to study microhabitat in lakes? Examples and comparisons for three European species. (2001) Ecology of Freshwater Fish, 10 (3). 138-146. ISSN 1600-0633

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Official URL: http://dx.doi.org/10.1034/j.1600-0633.2001.100303.x

Abstract

We compared fish microhabitat use patterns in the littoral zone of a lake using a new direct method (i.e. Point Abundance Sampling by Scuba, PASS) and the widely used Point Abundance Sampling by Electrofishing technique (PASE). We collected microhabitat data for age 0+ roach (Rutilus rutilus L.), perch (Perca fluviatilis L.), and pike (Esox lucius L.). The two methods yelded different results for fish assemblage structure and microhabitat patterns. Using PASE, fish were mainly found in "shelter habitats" such as shallow waters and dense vegetation. It is likely that this behaviour is caused by the disturbance of the observer stamping around. Using PASS, fish escapement behaviour was rarely observed. Therefore, we concluded that this direct and non-destructive sampling technique is able to provide an accurate microhabitat estimation of a fish community and is assumed to be more suitable than PASE for fish habitat studies.

Item Type:Article
Additional Information:Thanks to John Wiley and Sons editor. The definitive version is available at http://onlinelibrary.wiley.com/doi/10.1034/j.1600-0633.2001.100303.x/abstract
HAL Id:hal-00793412
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
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Deposited By: Pascal LAFFAILLE
Deposited On:08 Feb 2013 08:44

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