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A Comparison of Diving and Rotenone Methods for Determining Relative Abundance of Fish
Author(s) -
Dibble Eric D.
Publication year - 1991
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1991)120<0663:acodar>2.3.co;2
Subject(s) - rotenone , fish <actinopterygii> , abundance (ecology) , fishery , relative species abundance , biology , environmental science , zoology , mitochondrion , microbiology and biotechnology
I used scuba and rotenone methods to determine the relative abundances offish in a cove at Beaver Reservoir, Arkansas. One day before rotenone was applied to a 1.2‐hectare cove, divers swam nine transects to sample 944 m 2 . Divers observed 526 fish of nine species, whereas 8,700 fish of 21 species were documented with rotenone. There was a highly significant relationship ( P < 0.001, r = 0.954) between the relative abundance of certain species of fish observed in scuba and rotenone samples. Significant correlations were also noted between size‐classes of bass Micropterus spp. sampled by both methods.