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173 October 2009 environmental and biological atlas of the gulf of mexico 2004 gulf states marine fisheries commission number 173 october 2009 seamap SEAMAP ENVIRONMENTAL AND BIOLOGICAL ATLAS OF THE GULF OF MEXICO, 2004 Edited by Jeffrey K. Rester Gulf States Marine Fisheries Commission Manuscript Design and Layout Cheryl R. Noble Gulf States Marine Fisheries Commission GULF STATES MARINE FISHERIES COMMISSION October 2009 Number 173 This project was supported in part by the National Oceanic and Atmospheric Administration, National Marine Fisheries Service, under State/Federal Project Number NA06NMF4350007. GULF STATES MARINE FISHERIES COMMISSION COMMISSIONERS ALABAMA Senator Butch Gautreaux Barnett Lawley 714 2nd Street Alabama Department of Conservation Morgan City, LA 70380 and Natural Resources 64 North Union Street Wilson Gaidry Montgomery, AL 36130-1901 8911 Park Avenue Houma, LA 70363 Representative Spencer Collier P.O. Box 550 MISSISSIPPI Irvington, AL 36544 William Walker, Executive Director Mississippi Department of Marine Resources Chris Nelson 1141 Bayview Avenue Bon Secour Fisheries, Inc. Biloxi, MS 39530 P.O. Box 60 Bon Secour, AL 36511 Senator Tommy Gollott 235 Bayview Avenue FLORIDA Biloxi, MS 39530 Ken Haddad, Executive Director FL Fish and Wildlife Conservation Commission Joe Gill, Jr. 620 South Meridian Street Joe Gill Consulting, LLC Tallahassee, FL 32399-1600 910 Desoto Street Ocean Springs, MS 39566-0535 Senator Thad Altman State Senator, District 24 TEXAS 6767 North Wickham Road, Suite 211 Carter Smith, Executive Director Melbourne, FL 32940 Texas Parks and Wildlife Department 4200 Smith School Road Hayden R. Dempsey Austin, TX 78744 Greenberg Traurig, P.A. 101 East College Avenue Senator Mike Jackson Tallahassee, FL 32302 Texas Senate P.O. Box 12068 LOUISIANA Austin, TX 78711 Robert Barham, Secretary LA Department of Wildlife and Fisheries David McKinney P.O. Box 98000 44 East Avenue, Suite 345 Baton Rouge, LA 70898-9000 Austin, TX 78701 STAFF Larry B. Simpson Executive Director David M. Donaldson Gregory S. Bray Robert W. Harris V.K. “Ginny” Herring Joseph P. Ferrer, III Teri L. Freitas Nancy K. Marcellus Douglas J. Snyder Ralph E. Hode Cheryl R. Noble Deanna L. Valentine James R. Ballard Madeleine A. Travis Donna B. Bellais Alexander L. Miller Steven J. VanderKooy Wendy L. Garner Lloyd W. Kirk Jeffrey K. Rester SEAMAP SUBCOMMITTEE Mr. Jim Hanifen, Chairman Louisiana Department of Wildlife and Fisheries Mr. Read Hendon Mr. Butch Pellegrin Gulf Coast Research Laboratory National Marine Fisheries Service Pascagoula Laboratory Mr. John Mareska Alabama Department of Conservation Mr. Bob McMichael and Natural Resources Florida Fish and Wildlife Conservation Commission Mr. Fernando Martinez-Andrade Florida Fish and Wildlife Research Institute Texas Parks and Wildlife Department Mr. Richard Leard Gulf of Mexico Fishery Management Council Mr. Jeffrey K. Rester SEAMAP Coordinator Gulf States Marine Fisheries Commission DATA COORDINATING WORK GROUP Mr. Lloyd W. Kirk, Leader Gulf States Marine Fisheries Commission Mr. Butch Pellegrin Mr. Michael Murphy Shrimp/Groundfish Work Group Leader Red Drum Work Group Leader National Marine Fisheries Service Florida Fish and Wildlife Pascagoula Laboratory Conservation Commission Florida Fish and Wildlife Research Institute Dr. Joanne Shultz Plankton Work Group Leader Ms. Terry Romaire National Marine Fisheries Service Environmental Data Work Group Leader Pascagoula Laboratory Louisiana Department of Wildlife and Fisheries Mr. Read Hendon Reef Fish Work Group Leader Gulf Coast Research Laboratory -iii- TABLE OF CONTENTS PAGE List of Tables........................................................ v List of Figures ......................................................xiii Acknowledgments ...................................................xix Introduction ......................................................... 1 Materials and Methods ................................................. 2 Plankton Surveys ................................................. 3 Environmental Data............................................... 4 Trawl Surveys.................................................... 5 Summer Shrimp/Groundfish Survey .............................. 5 Fall Shrimp/Groundfish Survey ................................. 6 Reef Fish Survey ................................................. 6 Results . ......................................................... 7 Plankton Surveys ................................................. 7 Environmental Data............................................... 7 Trawl Surveys.................................................... 7 Summer Shrimp/Groundfish Survey .............................. 7 Fall Shrimp/Groundfish Survey ................................. 8 Real-Time Data Management ....................................... 9 Reef Fish Survey ................................................. 9 Discussion . ........................................................ 9 Data Requests ...................................................... 11 Tables . ....................................................... 12 Figures.. ........................................................ 158 Literature Cited .................................................... 250 -iv- LIST OF TABLES PAGE Table 1. List of SEAMAP survey activities from 1982 to 2004. ....................... 12 Table 2. Selected environmental parameters measured during 2004 SEAMAP surveys in the Gulf of Mexico, by individual vessel and survey......................... 13 Table 3. 2004 Summer Shrimp/Groundfish Survey species composition list, 401trawl stations, for those vessels that used either a 40-ft or 20-ft trawl. Species with a total weight of less than 0.0227 kg (0.05 lb) are indicated on the table as 0.0 kg. 69 Table 4a. Statistical Zone 11. Summary of dominant organisms taken in statistical zone 11 during the 2004 Summer Shrimp/Groundfish Survey by depth stratum, collected with either a 40-ft or 20-ft trawl. The mean number (NUM) of organisms per hour, the standard error of the mean (SEM) for numbers, the mean weight (WT) in kg per hour, the SEM for weight and the number (N) of samples taken. ............... 82 Table 4b. Statistical Zone 11. Summary of mean total catch and environmental data (X), the standard error of the mean (SEM) and the number (N) of samples taken during the 2004 Summer Shrimp/Groundfish Survey by depth stratum, collected with either a 40-ft or 20-ft trawl. Catch values in kg per hour, temperature in EC, salinity in ppt, chlorophyll in mg/m3, and oxygen in ppm. ................................ 84 Table 5a. Statistical Zone 13. Summary of dominant organisms taken in statistical zone 13 during the 2004 Summer Shrimp/Groundfish Survey by depth stratum, collected with either a 40-ft or 20-ft trawl. The mean number (NUM) of organisms per hour, the standard error of the mean (SEM) for numbers, the mean weight (WT) in kg per hour, the SEM for weight and the number (N) of samples taken. No trawl samples were taken in depths less than 6 fm or greater than 40 fm. .................... 85 Table 5b. Statistical Zone 13. Summary of mean total catch and environmental data (X), the standard error of the mean (SEM) and the number (N) of samples taken during the 2004 Summer Shrimp/Groundfish Survey by depth stratum, collected with either a 40-ft or 20-ft trawl. Catch values in kg per hour, temperature in EC, salinity in ppt, chlorophyll in mg/m3, and oxygen in ppm. No trawl samples were taken in depths less than 6 fm or greater than 40 fm. ..................................... 87 Table 6a. Statistical Zone 14. Summary of dominant organisms taken in statistical zone 14 during the 2004 Summer Shrimp/Groundfish Survey by depth stratum, collected with either a 40-ft or 20-ft trawl. The mean number (NUM) of organisms per hour, the standard error of the mean (SEM) for numbers, the mean weight (WT) in kg per hour, the SEM for weight and the number (N) of samples taken. ............... 88 -v- LIST OF TABLES PAGE Table 6b. Statistical Zone 14. Summary of mean total catch and environmental data (X), the standard error of the mean (SEM) and the number (N) of samples taken during the 2004 Summer Shrimp/Groundfish Survey by depth stratum, collected with either a 40-ft or 20-ft trawl. Catch values in kg per hour, temperature in EC, salinity in ppt, chlorophyll in mg/m3, and oxygen in ppm. ................................ 90 Table 7a. Statistical Zone 15. Summary of dominant organisms taken in statistical zone 15 during the 2004 Summer Shrimp/Groundfish Survey by depth stratum, collected with either a 40-ft or 20-ft trawl. The mean number (NUM) of organisms per hour, the standard error of the mean (SEM) for numbers, the mean weight (WT) in kg per hour, the SEM for weight and the number (N) of samples taken. ............... 91 Table 7b. Statistical Zone 15. Summary of mean total catch and environmental data (X), the standard error of the mean (SEM) and the number (N) of samples taken during the 2004 Summer Shrimp/Groundfish Survey by depth stratum, collected with either a 40-ft or 20-ft trawl. Catch values in kg per hour, temperature in EC, salinity in ppt, chlorophyll in mg/m3, and oxygen in ppm. ................................ 93 Table 8a. Statistical Zone 16. Summary of dominant organisms taken in statistical zone 16 during the 2004 Summer Shrimp/Groundfish Survey by depth stratum, collected with either a 40-ft or 20-ft trawl. The mean number (NUM) of organisms per hour, the standard error of the mean (SEM) for numbers, the
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