Trends in ex-vessel value and size composition of annual landings of brown, pink, and white shrimp from the Gulf and South Atlantic Coasts of the United States.

Exponential models were used to characterize 1) ex-vessel value per shrimp by size category in reported annual landings, 2) size composition of reported annual landings (expressed as cumulative weight of landings by size category), and 3) ex-vessel value composition of reported annual landings (expressed as cumulative value of the landings by size category) for brown shrimp, Penaeus aztecus, pink shrimp, P. duorarum, and white shrimp, P. setiferus, from the Gulf and South Atlantic coasts of the United States for 1961-77. Exponents of the models were used to describe fluctuations and trends in ex-vessel value per shrimp, in size composition, and in ex-vessel composition of the annual landings of the three species on the two coasts.