The role of management practices in fish kills in recreational lake fisheries in England and Wales

This source preferred by Robert Britton

Authors: Hewlett, N.R., Snow, J. and Britton, J.R.

http://dx.doi.org/10.1111/j.1365-2400.2009.00671.x

Journal: Fisheries Management and Ecology

Volume: 16

Pages: 248-254

ISSN: 0969-997X

DOI: 10.1111/j.1365-2400.2009.00671.x

In England and Wales, freshwater anglers have shifted their behaviour towards visiting catch-andrelease lake fisheries that are intensively stocked, mainly of large common carp, Cyprinus carpio L., to maintain high catch rates. Of 187 fish kills investigated in these intensively stocked lake fisheries in 2004 and 2005, most occurred between April and June and were mainly caused by parasitic or bacterial infections. Bacteria were usually associated with ulcerative diseases caused by strains of the bacterium Aeromonas salmonicida (Emmerich & Weibel) and secondary infections of opportunistic bacteria of the Genus Aeromonas (excluding salmonicida) and Pseudomonas. Parasites involved in fish kills included Ichthyophthirius multifiliis (Fouquet), Chilodenella sp., Ichthyobodo necator (Henneguy) and Argulus sp. Outbreaks were typically in fisheries with high extant stock densities (>1500 kg ha)1) and sub-optimal habitats, for example of low habitat heterogeneity with few macrophytes in the littoral zone. Recent stocking was also a key factor when only carp was affected. Thus, certain fisheries management practices that aim to enhance fishery performance may instead trigger fish kills during spring.

This data was imported from Scopus:

Authors: Hewlett, N.R., Snow, J. and Britton, J.R.

Journal: Fisheries Management and Ecology

Volume: 16

Issue: 3

Pages: 248-254

eISSN: 1365-2400

ISSN: 0969-997X

DOI: 10.1111/j.1365-2400.2009.00671.x

In England and Wales, freshwater anglers have shifted their behaviour towards visiting catch-and-release lake fisheries that are intensively stocked, mainly of large common carp, Cyprinus carpio L., to maintain high catch rates. Of 187 fish kills investigated in these intensively stocked lake fisheries in 2004 and 2005, most occurred between April and June and were mainly caused by parasitic or bacterial infections. Bacteria were usually associated with ulcerative diseases caused by strains of the bacterium Aeromonas salmonicida (Emmerich & Weibel) and secondary infections of opportunistic bacteria of the Genus Aeromonas (excluding salmonicida) and Pseudomonas. Parasites involved in fish kills included Ichthyophthirius multifiliis (Fouquet), Chilodenella sp., Ichthyobodo necator (Henneguy) and Argulus sp. Outbreaks were typically in fisheries with high extant stock densities (> 1500 kg ha-1) and sub-optimal habitats, for example of low habitat heterogeneity with few macrophytes in the littoral zone. Recent stocking was also a key factor when only carp was affected. Thus, certain fisheries management practices that aim to enhance fishery performance may instead trigger fish kills during spring. © 2009 Blackwell Publishing Ltd.

This data was imported from Web of Science (Lite):

Authors: Hewlett, N.R., Snow, J. and Britton, J.R.

Journal: FISHERIES MANAGEMENT AND ECOLOGY

Volume: 16

Issue: 3

Pages: 248-254

eISSN: 1365-2400

ISSN: 0969-997X

DOI: 10.1111/j.1365-2400.2009.00671.x

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