Hooking Mortality of Trophy-Sized Wild Brook Trout Caught on Artificial Lures

Autor:	Andrew J. Nuhfer, Gaylord R. Alexander
Rok vydání:	1992
Předmět:	Ecology biology Hook Zoology Management Monitoring Policy and Law Aquatic Science biology.organism_classification Trophy Hooking Fishery Trout Fish Ecology Evolution Behavior and Systematics Salvelinus
Zdroj:	North American Journal of Fisheries Management. 12:634-644
ISSN:	1548-8675 0275-5947
DOI:	10.1577/1548-8675(1992)012<0634:hmotsw>2.3.co;2
Popis:	The average hooking mortality per capture event for 630 trophy-sized wild brook trout Salvelinus fontinalis (mean total length, 33.9 cm) caught on five hardware lures was 4.3% during the first 48 h after capture, Mortality was 8.3% for brook trout caught on Mepps spinners and Cleo spoons equipped with a treble-pointed hook, whereas mortality was significantly lower (2.4% per hooking event; P < 0.05) for fish caught on the same lures with a single-pointed hook. The 10.9% mortality caused by treble-hook Mepps spinners was significantly higher than mortality caused by single-hook Cleo spoons (1.6%). Mortality for brook trout caught on single-hook Cleo spoons and single-hook Mepps spinners combined (2.4%) was also significantly lower (P < 0.05) than mortality offish caught on Mepps spinners with treble hooks. There was no mortality among 126 brook trout caught with Rapala lures rigged with two treble hooks. We believe that the differences in mortality of brook trout caught with different lures are pr...
Databáze:	OpenAIRE
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