SEAMAP Atlas 1985
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<;tJLF STATES MARINE FISHERIES COMMISSION COMMISSIONERS ALABAMA Rep. Frank J. Patti Mr. James C. Martm LA House of Representatives Al Dcparlmcnl of ( 'orn.nvalHlll P.O. Box 53 a11d Natural Resource:-, Belle Chasse, LA 70037 M North Union Strct'.l Montgomery. AL >6104 Mr. Leroy Kiffe Route 1, Box 239 Rep. Taylor I-. Harper Lockport, LA 70374 AL House of Rcprcsenlativcs P.O. Box 229 MISSISSIPPI Grand Bay, AL .16541 Mr. Vernon Bevil Executive Director Mr. John Ray Nelson MS Department of Wildlife Bon Sccour Fisheries, Inc. Conservation P.O. Box 60 P.O. Box 451 Bon Sccour, AL 36511 Jackson, MS 39205 FLORIDA Rep. Ted Millette Dr. Tom Gardner MS House of Representatives Executive Director Box 1177 FL Dept. of Natural Resources Pascagoula, MS 39567 3900 Commonwealth Boulevard Tallahassee, FL 32303 Mr. Holton D. Turnbough WGUF Radio Station Rep. Sam Mitchell P.O. Box 789 FL House of Representatives Gulfport, MS 39501 P.O. Box 299 Chipley, FL 32428 TEXAS Mr. Charles D. Travis Mr. Clyde Richbourg Executive Director 220 Billoree Road Texas Parks and Wildlife Deparunent Pace, FL 32571 4200 Smith School Road Austin, TX 78744 LOUISIANA Mr. J. Burton Angelle Sen. H. Tati Santiesteban Executive Secretary Texas Senate LA Department of Wildlife 747 East San Antonio, Suite 100 and Fisheries El Paso, TX 79901 P.O. Box 15570 Baton Rouge, LA 70895 Mr. Charles E. Belaire P.O. Box 1210 Fulton, TX 78358 STAFF Larry B. Simpson Virginia K. Herring Thomas M. Van Dcvcndcr Ronald R. Lukens Lucia B. Hourihan Eileen M. Benton Nancy K. Marcellus SEAMAP ENVIRONMENTAL AND BIOLOGICAL ATLAS OF THE GULF OF MEXICO, 1985 Edited by Perry A. Thompson Tom Van Devender National Oceanic and Atmospheric Administration Gulf States Marine Fisheries Commission National Marine Fisheries Service Ocean Springs, Mississippi Pascagoula, Mississippi Nathaniel J. Sanders, Jr. National Oceanic and Atmospheric Administration National Marine Fisheries Service Pascagoula, Mississippi Manuscript Design and Layout Eileen M. Benton Lucia B. Hourihan Gulf States Marine Fisheries Commission Gulf States Marine Fisheries Commission Ocean Springs, Mississippi Ocean Springs, Mississippi GULF ST A TES MARINE FISHERIES COMMISSION June 1988 Number 17 This project was supported in part by the National Oceanic and Atmospheric Administration, l\ational Marine Fisheries Service, under State/Federal Project '.'liumber SM-14. SEAMAP SUBCOMMITTEE Mr. Walter M. Tatum, Chairman Alabama Department of Conservation and Natural Resources Gulf Shores, Alabama Mr. Barney Barrett Dr. Scott Nichols Louisiana Department of National Oceanic and Atmospheric Wildlife and Fisheries Administration Baton Rouge, Louisiana National Marine Fisheries Service Pascagoula, Mississippi Mr. J. Alan Huff Mr. Wayne Swingle Florida Department of Natural Gulf of Mexico Fishery Resources Management Council St. Petersburg, Florida Tampa, Florida Dr. Gary Matlock, Vice Chairman Mr. Richard S. Waller Texas Parks and Wildlife Gulf Coast Research Laboratory Department Ocean Springs, Mississippi Austin, Texas Mr. Tom Van Devender SEAMAP Coordinator Gulf States Marine Fisheries Commission Ocean Springs, Mississippi iii SEAMAP DATA COORDINATING WORK GROUP Mr. Kenneth Savastano National Space Technology Laboratories National Marine Fisheries Service NSTL Station, Mississippi Mr. Phil Bowman Dr. Warren Stuntz Louisiana Department of Wildlife National Oceanic and Atmospheric and Fisheries Administration Baton Rouge, Louisiana National Marine Fisheries Service Pascagoula, Mississippi Dr. Thomas Mcilwain Mr. Frederick Sutter Gulf Coast Research Laboratory Florida Department of Natural Ocean Springs, Mississippi Resources St. Petersburg, Florida Dr. Joanne Shultz Mr. Walter Tatum Gulf Coast Research Laboratory Alabama Department of Conservation Biloxi, Mississippi and Natural Resources Gulf Shores, Alabama iv ACKNOWLEDGEMENTS The 1985 SEAMAP Atlas was developed as a cooperative effort between the five Gulf States fishery management agencies and the National Marine Fisheries Service (NMFS), to present information collected during SEAMAP research survey activities in the Gulf of Mexico. The SEAMAP Data Coordinating Work Group would like to thank the following agencies for their participation in the project: Florida Department of Natural Resources, Alabama Department of Conservation and Natural Resources, Gulf Coast Research Laboratory (representing the Mississippi Department of Wildlife Conservation), Louisiana Department of Wildlife and Fisheries, Texas Parks and Wildlife Department, and NMFS, Southeast Fisheries Center. Special thanks go to Dr. Andrew J. Kemmerer, Director, NMFS Mississippi Laboratories, to laboratory personnel Rick Minkler, Mark McDuff, Linda Magee, John Brucks and Bennie Rohr; to Leslie Bruce of the Gulf Coast Research Laboratory; and to the Gulf States Marine Fisheries Commission staff for their assistance in preparing this atlas. v vi TABLE OF CONTENTS PAGE Introduction • • • • • • • • • • • • • • . • • • • • • • • • . • • • • • • • • • • • 1 Materials and Methods 2 Plankton Surveys 2 Environmental Surveys 4 Satellite Images 5 Trawl Surveys • • 5 Summer Shrimp/Bottomfish Survey 5 Squid/Butterfish Survey 6 Fall Shrimp/Groundfish Survey 6 Results 7 Plankton Surveys 7 Environmental Surveys 7 Shrimp/Bottomfish Survey 8 Squid/Butterfish Survey • 9 Fall Shrimp/Groundfish Survey 9 Real-Time Data Management •• 10 Discussion • • • • 10 Data Requests 11 Literature Cited ••••••.•..•.••••••••••••••••.••••• 337 vii LIST OF TABLES PAGE Table 1. Selected environmental parameters measured during 1985 SEAMAP surveys in the Gulf of Mexico, by individual vessel and survey. 13 Table 2. SEAMAP Summer Shrimp and Bottomfish Survey species composition list, 288 trawl stations. Species with a total weight of less than .05 lb (22.7 g) are indicated on table as 0.0 kg ..... 59 Table 3. Statistical Zone 5. Summary of the mean of the environmental data (X), the standard error of the mean (SEM) and the number of samples taken (n) during the June-July 1985 SEAMAP Shrimp/ 0 Groundfish Survey by depth stratum. Temperature in c, salinity in ppt and oxygen in ppm. No trawl sampling was done in statistical zone 5. Plankton station only. No plankton samples were collected below 11 fm. • 71 Table 4. Statistical Zone 6. Summary of the mean of the environmental data (X), the standard error of the mean (SEM) and the number of samples taken (n) during the June-July 1985 SEAMAP Shrimp/ Groundfish Survey by depth stratum. Temperature in °c, salinity in ppt and oxygen in ppm. No trawl sampling was done in statistical zone 6. Plankton station only. No plankton samples were collected over 30 fm. • . 72 Table 5. Statistical Zone 7 • Summary of the mean of the environmental data (X), the standard error of the mean (SEM) and the number of samples taken (n) during the June-July 1985 SEAMAP Shrimp/ 0 Groundfish Survey by depth stratum. Temperature in c, salinity in ppt and oxygen in ppm. No trawl sampling was done in statistical zone 7. Plankton station only. No plankton samples were collected over 20 fm. 73 Table 6. Statistical Zone 8. Summary of the mean of the environmental data (X), the standard error of the mean (SEM) and the number of samples taken (n) during the June-July 1985 SEAMAP Shrimp/ Groundfish Survey by depth stratum. Temperature in °c, salinity in ppt and oxygen in ppm. No trawl sampling was done in statistical zone 8. Plankton station only. No plankton samples were collected below 6 fm and between 21 and 30 fm. 74 Table 7. Statistical Zone 9. Summary of the mean of the environmental data (X), the standard error of the mean (SEM) and the number of samples taken (n) during the June-July 1985 SEAMAP Shrimp/ Groundfish Survey by depth stratum. Temperature in °c, salinity in ppt and oxygen in ppm. No trawl sampling was done in statistical zone 9. Plankton station only. No plankton samples were collected below 11 fm. • . 75 viii LIST OF TABLES PAGE Table Sa. Statistical Zone 10. 40-ft trawls. Summary of dominant organisms, combined for all zones, taken in shrimp statistical zone 10 during the June-July 19S5 SEAMAP Shrimp and Bottomfish Survey by depth stratum. The mean number (NUM) of organisms per hour, the standard error of the mean (SEM) for numbers, the mean weight in kg per hour, the SEM of weight and the number (N) of samples taken. No samples were taken below 6 fm or above 20 fm. • • 76 Table Sb. Statistical Zone 10. 40-ft trawls. Summary of dominant organisms taken within statistical zone 10 during the June-July 19S5 SEAMAP Shrimp and Bottomfish Survey by depth stratum. The mean number (NUM) of organisms per hour, the standard error of the mean ( SEM) for numbers, the mean weight in kg per hour, the SEM of weight and the number (N) of samples taken. No samples were taken below 6 fm or above 20 fm. 77 Table Sc. Statistical Zone 10. 40-ft trawls. Summary of the mean total catch and environmental data (X), the standard error of the mean (SEM) and the number of samples taken (n) during the June-July 19S5 SEAMAP Shrimp and Bottomfish Survey by depth stratum. Catch values in kg per hour, temperature in °c, salinity in ppt, and oxygen in ppm. No samples were taken below 6 fm. 7S Table 9a. Statistical Zone 11. 40-ft trawls. Summary of dominant organisms, combined for all zones, taken in shrimp statistical zone 11 during the June-July 19S5 SEAMAP Shrimp and Bottomfish Survey by depth stratum. The mean number (NUM) of organisms per hour, the standard error of the mean (SEM) for numbers, the mean weight in kg per hour, the SEM of weight and the number (N) of samples taken. • . 79 Table 9b. Statistical Zone 11. 40-ft trawls. Summary of dominant organisms taken within statistical zone 11 during the June-July 19S5 SEAMAP Shrimp and Bottomfish Survey by depth stratum. The mean number (NUM) of organisms per hour, the standard error of the mean (SEM) for numbers, the mean weight in kg per hour, the SEM of weight and the number (N) of samples taken. • . • Sl Table 9c. Statistical Zone 11. 40-ft trawls. Summary of the mean total catch and environmental data (X), the standard error of the mean (SEM) and the number of samples taken (n) during the June-July 19S5 SEAMAP Shrimp and Bottomfish Survey by depth stratum.