Water surface area within statistical subareas used in reporting Gulf Coast shrimp data.

Abstract

The water surface area (in hectares) of 21 statistical subareas was calculated for 5-fathom intervals using compensation planimeters of the polar type. A statistical analysis was done to determine the standard error and to set confidence limits on calculated values. The areas calculated are compatible with depth zones used in reporting Gulf Coast Shrimp Data and should be of value in estimating catch per unit effort per unit area.