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Science 14 April 1978:
Vol. 200. no. 4338, pp. 204 - 206
DOI: 10.1126/science.200.4338.204
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Articles

Sex Ratio: Adaptive Response to Population Fluctuations in Pandalid Shrimp

ERIC L. CHARNOV 1, DANIEL W. GOTSHALL 2, and JACK G. ROBINSON 3

1 Department of Biology, University of Utah, Salt Lake City 84112
2 California Department of Fish and Game, P.O. Box 98, Avila Beach 93424
3 Oregon Department of Fish and Wildlife, Marine Science Drive, Newport 97365

Pandalus jordani is a protandrous (sequential) hermaphrodite. Populations show large year-to-year variation in age composition. In response to this variation, individuals alter the age at which they change sex. This response is predicted by a genetic model that assumes that an individual shrimp maximizes its genetic contribution to the next generation.

Submitted on September 20, 1977
Revised on December 20, 1977


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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