King and Spanish mackerel migration and stock assessment study in the southern Gulf of Mexico. 1990 quarter V (January 1 - March 31, 1991) report.

Abstract

This is the quarter V report of a project conducted from January 1 - March 31 and describes the results of a study that was undertaken as part of an attempt to understand the migration and stock identity of the king and Spanish mackerel in the Gulf of Mexico. The goal was to report movement and migration of the mackerel, followed by length/frequency distributions, and catch per unit efforts (CPUE) information, to obtain specimens for electrophoresis and to tag Spanish mackerel at specific Mexican locations. These locations were chosen so that the tagging effort would correspond with mackerel migration patterns off Mexico. Tagging efforts were concentrated off the State of Yucatan during the winter portion of the study.