Mortality Associated with Catch-and-Release Angling of Striped Bass in the Hudson River

Autor: Michael J. Millard, Jerre W. Mohler, Andrew W Kahnle, Amanda Cosman
Rok vydání: 2005
Předmět:
Zdroj: North American Journal of Fisheries Management. 25:1533-1541
ISSN: 1548-8675
0275-5947
DOI: 10.1577/m04-175.1
Popis: Catch-and-release fishing commonly occurs in recreational fisheries, including those for the striped bass Morone saxatilis of the Atlantic coast. The contribution of catch-and-release practices to overall fishing mortality is often not estimated. We estimated the catch-and-release mortality for the Hudson River spawning stock of striped bass in 2001. Volunteer anglers caught striped bass between April 30 and May 16, 2001. Fish were transferred to transport boats in live wells and placed in one of nine 15,000-L land-based holding tanks. Control fish were collected by electrofishing and otherwise handled similarly. Treatment and control fish were uniquely tagged and held together for 5 d. Hooking mortality was estimated via conditional rate and additive rates. These two estimation techniques partitioned total observed mortality into hooking mortality and handling mortality, the latter being estimated from control fish. Catch-and-release mortality for striped bass averaged 16% for traditional J hook...
Databáze: OpenAIRE
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