W-Fold Throw Trap: A folding, Transportable 1-m2Throw Trap for Use in Densely Vegetated Aquatic Habitats

Autor:	David J. Yozzo, Chris Cotroneo
Rok vydání:	2010
Předmět:	Hydrology geography geography.geographical_feature_category Ecology Aquatic ecosystem Nekton Emergent vegetation Fold (geology) Aquatic Science Swamp Habitat Temperate climate Environmental science Ecology Evolution Behavior and Systematics
Zdroj:	Journal of Freshwater Ecology. 25:73-78
ISSN:	2156-6941 0270-5060
Popis:	We designed and constructed an aluminum-sided, folding I-m2 throw trap with a deep-water extension and a folding aluminum-framed bar seine that can be easily transported to remote locations and used to sample densely vegetated aquatic habitat. We call it the W-fold throw trap, after the folding design. The gear was used to sample fish and macrocrustacean habitats of New York's Great Swamp, a temperate riverine swamp located in the northeastern United States. A total of 717 fishes and crayfishes representing 18 taxa was collected in 155 samples of submersed and emergent vegetation using this trap. Overall mean density of nekton collected was 4.6 specimens per m2. In emergent vegetation mean density was 4.1 specimens per m2, while in submersed vegetation mean density was 5.2 specimens per m2. Throw trap clearing efficiency tests yielded an overall mean recovery efficiency of 98.9% for three fish and macrocrustacean species commonly collected in the study area.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::829636236573e3698aa6ff1ff49fa6d3 https://doi.org/10.1080/02705060.2010.9664359 Zobrazit plný text záznamu