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Evaluating and understanding fish health risks and their consequences in propagated and free-ranging fish populations

American Fisheries Society Symposium

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Abstract

Fishery managers and resource conservationists are increasingly interested in understanding the fish health and disease risks of free-ranging fishes and whether propagated fishes or features and practices used at fish culture facilities pose a health risk to free-ranging populations. Disease agents are present in most both captive and all free-ranging fish populations, but the consequences and extent of infections in free-ranging populations are often difficult to measure, control, and understand. Sampling methods, protocols, and assay techniques developed to assess the health of captive populations are not as applicable for assessments of free-ranging fishes. The use of chemicals and therapeutics to control diseases and parasites in propagated fishes likely reduces the risk of introducing specific pathogens into the environment, but control measures may have localized effects on the environment surrounding fish culture facilities. To understand health risks of propagated and free ranging fishes, we must consider fish populations, culture facilities, fish releases, and their interactions within the greater geospatial features of the aquatic environment. ?? 2004 by the American Fisheries Society.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Evaluating and understanding fish health risks and their consequences in propagated and free-ranging fish populations
Series title:
American Fisheries Society Symposium
Volume
2005
Issue:
44
Year Published:
2005
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
American Fisheries Society Symposium
First page:
529
Last page:
537
Number of Pages:
9