The true picture of a lake or reservoir fish stock: a review of needs and progress

Kubecka, Jan; Hohausova, Eva; Matena, Josef; Peterka, Jin; Amarasingh, Upali S.; Bonar, Scott A.; Hateley, Jon; Hickley, Phil; Suuronen, Petri; Tereschenko, Vladimir; Welcomme, Robin; Winfield, Ian J.. 2009 The true picture of a lake or reservoir fish stock: a review of needs and progress. Fisheries Research, 96 (1). 1-5.

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The conference ‘Fish Stock Assessment Methods for Lakes and Reservoirs: Towards the True Picture of Fish Stock’ (FSAMLR) was held in September 2007 in Ceske Budejovice, Czech Republic. A total of 110 participants from 34 countries attended the meeting and 93 lectures were presented. Great advances were reported in fish surveys using hydroacoustics and multimesh gillnet techniques, with nearly 60% of all presentations dealing with these topics. In contrast, the use of other active sampling gear, especially trawling and purse seining, received relatively little attention and still requires substantial further development. Reviews of standardization of fish sampling in the European Union, Russia and North America were also presented and clearly showed the benefits of standardized procedures. A number of contributions emphasized the need to use a combination of several methods for the same habitat. A true picture of the fish stock includes knowledge of the abundance, biomass, number of species, size and age compositions. Obtaining results of assured quality for all important lake and reservoir habitats and time periods still presents a significant challenge, although good progress is being made towards this important objective.

Item Type: Publication - Article
Digital Object Identifier (DOI):
Programmes: CEH Programmes pre-2009 publications > Water > WA02 Quantifying processes that link water quality and quantity, biota and physical environment > WA02.3 Physico-chemical processes and effects on freshwater biot
UKCEH and CEH Sections/Science Areas: Parr
ISSN: 0165-7836
Additional Keywords: Fish stock assessment, Active and passive gear, Catch statistics, Intercalibration, Standardization, Accuracy, Ground truthing, Interpretation
NORA Subject Terms: Ecology and Environment
Date made live: 05 May 2009 15:21 +0 (UTC)

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