Study of Populations of Juvenile Shrimp in the Corpus Christi Bay Complex - Study of Texas Shrimp Populations

Brown shrimp (Penaeus aztecus) were 30.2 per cent less abundant in 10-foot trawl samples in 1963 than in 1962. White shrimp (Penaeus setiferus) were 34.4 per cent less abundant. The first juvenile brown shrimp of the year appeared in the April 1st samples. This group was followed by a second wave in July and a third one in August. Juvenile white shrimp were first taken in the mid-July samples, 15 days later than in 1962. White shrimp reached a peak of abundance in August with 27.4 shrimp per unit of effort and another peak in November in 28.3 shrimp per unit of effort.