MEPS 262:285-287 (2003)  -  doi:10.3354/meps262285

Comparing vertical plankton profiles with replication

Andrew Beet1,*, Andrew R. Solow1, Stephen M. Bollens2

1Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, USA 2Department of Biology and Romberg Tiburon Center for Environmental Studies, San Francisco State University, 3152 Paradise Drive, Tiburon, California 94920, USA

ABSTRACT: Traditional statistical methods for testing for differences between vertical plankton distributions are invalid if the distributions are patchy. This Note describes a statistical test for differences in vertical plankton distributions in the presence of patchiness when replicate samples are available. An illustration involving a test for day/night differences in the vertical distribution of the copepod Calanus pacificus is presented.

KEY WORDS: Calanus pacificus · Negative binomial distribution · Patchiness

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