SEAMAP Real-time Plots for the year 2009
Week 2
Below is the second preliminary data summary for the 2009 SEAMAP Summer Shrimp/Groundfish Survey in the northern Gulf of Mexico. This week's summary includes sampling from June 8 through June 15 by the Alabama vessel A.E. Verrill, and the NMFS vessel Oregon II. Catch data from the A.E. Verrill and Oregon II were taken with a 40-ft trawl.
Plotted catch rates have been converted to pounds per hour for a 40-ft trawl (20-ft trawl x 2). Shrimp counts are heads-on. The squares on the charts are 10-minute grids. The number in each grid square is the average catch or count from all stations (may be one or more stations) that were sampled within a particular grid. The sampling stations were located randomly by depth zone.
The catch data from east of the Mississippi River indicated that the highest catch rate of brown shrimp was 23.7 lb/hr in 26 fm at 29° 32' N. lat. and 88° 20' W. long. The highest catch rate of white shrimp was 17.5 lb/hr in 18 fm at 29° 59' N. lat. and 88° 43' W. long. The highest catch rate of pink shrimp was 8.3 lb/hr in 15 fm at 29° 59' N. lat. and 88° 13' W. long. The maximum total catch rate excluding the three shrimp species was 1,645 lb/hr in 19 fm at 29° 41' N. lat. and 88° 31' W. long.
The catch data from Texas indicated that the highest catch rate of brown shrimp was 141.0 lb/hr in 15 fm at 26° 32' N. lat. and 97° 05' W. long. The highest catch rate of pink shrimp was 53.9 lb/hr in 9 fm at 26° 26' N. lat. and 97° 10' W. long. The maximum total catch rate excluding the three shrimp species was 191 lb/hr in 34 fm at 29° 20' N. lat. and 96° 31' W. long.
Sampling coverage for the next weekly report will be by Texas vessels and the NMFS vessel Oregon II.
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