SEAMAP Real-time Plots for the year 2005
Week 6
Below is the sixth preliminary data summary for the 2005 SEAMAP Summer Shrimp/Groundfish Survey in the northern Gulf of Mexico . This week's summary includes sampling July 5 - July 9 by the NMFS vessel Oregon II, sampling July 7 - July 9 by the Louisiana vessel R/V Pelican, and sampling July 5 by Texas vessels. Catch data from the R/V Pelican and Oregon II were taken with a 40-ft trawl. Catch data from the Texas vessels were taken with 20-ft trawls.
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 west of the Mississippi River indicated that the highest catch rate for brown shrimp was 7.9 lb/hr in 18 fm at 28° 31' N. lat. and 91° 12' W. long. The highest catch rate of white shrimp was 6.0 lb/hr in 6 fm at 28° 53' N. lat. and 91° 23' W. long. No pink shrimp were caught during this sampling period west of the Mississippi River . The maximum total catch rate excluding the three shrimp species was 506 lb/hr in 15 fm at 28° 34' N. lat. and 91° 13' W. long.
The catch data from Texas indicated that the highest catch rate of brown shrimp was 96.6 lb/hr in 20 fm at 28° 27' N. lat. and 95° 04' W. long. The highest catch rate for white shrimp was 80.0 lb/hr in 5 fm at 28° 32' N. lat. and 96° 05' W. long. The highest catch rate for pink shrimp was 1.5 lb/hr in 14 fm at 28° 48' N. lat. and 93° 29' W. long. The maximum total catch rate excluding the three shrimp species was 601.5 lb/hr in 7 fm at 28° 29' N. lat. and 96° 07' W. long.
Sampling coverage for the next weekly report will be by the NMFS vessel Oregon II.
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