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Marine Biology Graduate Student Association

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Jeremiah Bautista

Jeremiah Bautista

Nearshore Marine Fish Research Program
Department of Biology
18111 Nordhoff Street
Northridge, CA 91330-8303


B.S. Marine Biology, California State Northridge, 2010

M.S. Thesis

Reproductive biology of the barred sand bass, Paralabrax nebulifer, of Southern California

Years of intense fishing pressure has caused the fishery of the barred sand bass, (Paralabrax nebulifer) of southern California to decline precipitously in the first decade of the 21st century. Commercial fishing has been prohibited since the 1950s, but the increasing popularity of this sport fish and relative ease to capture has drawn in thousands of anglers annually. Specifically this proposed study into the reproductive biology of barred sand bass aims to 1) document, for the first time, the gonado-somatic index (GSI) for both male and female for a full year, 2) determine fecundity for a size range of females, 3) investigate the possibility of a sexual dimorphic trait in the eye crest morphological size and coloration, and 4) update the age assessment for fishery management related issues.

Understanding the reproductive cycles and the duration that energy is being allocated towards reproduction is important for the proper management of this fishery. Historically, barred sand bass have played a prominent role in the recreational fishing industry of southern California and must be protected and properly managed to prevent decrease of the stocks, the loss of genetic diversity, the shifting of size and sex classes, and the ultimate collapse of the fishery.

Barred Sand Bass