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New Species Richness Predictors First Tested on Fish in a Small Tropical Stream
Author(s) -
Głowacki Łukasz,
Penczak Tadeusz
Publication year - 2008
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/t05-299.1
Subject(s) - electrofishing , species richness , sampling (signal processing) , fish <actinopterygii> , estimator , ecology , geography , fishery , environmental science , statistics , biology , mathematics , computer science , filter (signal processing) , computer vision
Species richness predictors serve to provide information related to how many new species would be captured in an additional sampling survey at a site on the basis of what actually was captured in an initial sample survey. Two new species richness predictors, one based on sampling effort units and the other on numbers of specimens obtained in the initial survey, were tested on fish in a small tropical stream sampled with a seine fixed to two sticks, electrofishing, and rotenone, the last of which was considered as the control. The first predictor provided better predictions with electrofishing samples than earlier developed predictors of this type. The latter predictor provided no improvement over previous estimators of its type.