Distribution of juvenile brown shrimp (Penaeus aztecus Ives) in Galveston Bay, Texas, as related to certain hydrographic features and salinity




Parker, Jack C.

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Port Aransas Marine Laboratory, University of Texas Marine Science Institute


A survey of juvenile brown shrimp, Penaeus aztecus Ives, was conducted in Galveston Bay during 1963 and 1964 to determine where they were concentrated, to establish their movement patterns, and to determine to what extent salinity effects their distribution. Upon entering the bay, these shrimp were found concentrated primarily along the shores and in the marshes and bayous. Redistribution did not occur until Gulfward emigration began. The path of emigration appeared to be along a direct route to the passes and not the result of a random search. Size at emigration varied between 70-100 mm. Shrimp were abundant at salinities from 0.9 to 30.8 0/00 and it was concluded that salinity per se had no detectable effect on distribution.


pgs. 1-12


Penaeid shrimp, juveniles, ecological distribution, salinity effects, local movements, Penaeus aztecus, brown shrimp, juveniles