Volume 81, Issue 6 p. 2074-2079

The lunar cycle determines availability of coral-reef fishes at fish markets

A. R. Bos

Corresponding Author

A. R. Bos

Netherlands Centre for Biodiversity Naturalis, P. O. Box 9517, 2300 RA Leiden, The Netherlands

Author to whom correspondence should be addressed at present address: Department of Biology, School of Science and Engineering, The American University in Cairo, P. O. Box 74, New Cairo 11835, Egypt. Tel.: +20 2 2615 2903; email: [email protected]Search for more papers by this author
G. S. Gumanao

G. S. Gumanao

Research Office, Davao del Norte State College, New Visayas, 8105 Panabo, The Philippines

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First published: 15 October 2012
Citations: 16

Abstract

During 139 visits between March 2009 and May 2011, it was found that the availability of reef fishes at a local fish market in the Philippines was highly affected by the lunar cycle. The number of vendors selling reef fishes was significantly lower (13·4%) during third lunar quarters (full moon periods) than during the first, second and fourth lunar quarters (40·2, 25·0 and 30·0%, respectively). It is recommended that the influence of the lunar cycle on fish availability is considered when designing sampling strategies for catch surveys.

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