A study of the Galveston Bay bait-shrimp fishery.




Lamkin, J.T.

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Texas A&M University.


Ratios (calculated from both abundance and biomass) of shrimp: finfish and shrimp: invertebrates as well as the species composition of each component were determined from trawl samples taken aboard a commercial bait-shrimp vessel during July 1981 through June 1982. Monthly shrimp: finfish abundance ratios ranged from an average of 6.4:1 in July to 1.5:1 in December with the overall average of 3.2:1. Shrimp: finfish ratios were much higher than those reported for the Gulf of Mexico shrimp fishery. Shrimp: invertebrate ratios ranged from 7.0:1 in August to 61.5:1 in December, and averaged 12.5:1 during the study. The commercial bait-shrimp catch was dominated by brown shrimp (Penaeus aztecus) during May through early August and by white shrimp (Penaeus setiferus) thereafter. Trends in total bait-shrimp catch recorded during this study were similar to those reported for the bait-shrimp fishery throughout Galveston Bay. Catch-per-unit-effort trends during the study differed seasonally and were much reduced in magnitude compared to those recorded for the Galveston Bay System.


79 p., Thesis


finfish, trawl nets, shrimp fisheries, catch statistics, brown shrimp, Penaeus aztecus, Penaeus setiferus, white shrimp