Relative Selectivity of Fishing Gear Used in a Large Reservoir in Texas

Autor:	Chi Fu Yeh
Rok vydání:	1977
Předmět:	Fishery Ecology Fishing Correlation analysis Fish Sampling (statistics) Environmental science Aquatic Science Trap (plumbing) Relative species abundance Ecology Evolution Behavior and Systematics
Zdroj:	Transactions of the American Fisheries Society. 106:309-313
ISSN:	1548-8659 0002-8487
DOI:	10.1577/1548-8659(1977)106<309:rsofgu>2.0.co;2
Popis:	The relative selectivity of hoop nets, trap nets, and gill nets was compared by sampling fish populations in Lake Nasworthy, Texas, during 1969. All 17 species caught with the four gears were caught with a combination of trap nets and either gill nets or small hoop nets alone. Based on correlation analysis using Kendall's tau, small hoop nets used in conjunction with gill nets were the most efficient paired gear to estimate species composition and relative abundance. Trap nets used with small hoop nets were most efficient to catch fish with uniform overall size-class representation. Results of this study should be useful in designing cost-effective fish sampling programs in areas where species composition is similar to that of Lake Nasworthy.
Databáze:	OpenAIRE
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