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Vertical Line Survey (2011)
The Southeast Fisheries Science Center Mississippi Laboratories conducts standardized fisheries independent resource surveys in the Gulf of Mexico, South Atlantic, and U.S. Caribbean to provide abundance and distribution information to support regional and international stock assessments. In 2011, the R/V Gandy conducted a survey of reef fish located on the continental shelf and shelf-edge of the western Gulf of Mexico using bandit reels (vertical lines). Data were collected using using ten gangions, five #11/0 circle hooks and five #8/0 circle hooks. The data provided additional life history information for a red snapper benchmark stock assessment.
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Oil Platform Vertical Line Survey (2007)
공공데이터포털
The Southeast Fisheries Science Center Mississippi Laboratories conducts standardized fisheries independent resource surveys in the Gulf of Mexico, South Atlantic, and U.S. Caribbean to provide abundance and distribution information to support regional and international stock assessments. A pilot survey was conducted in 2007 to determine the abundance of reef fish associated with oil and gas platforms in the northern Gulf of Mexico. The fishing gear employed was bandit reels that used a 1.6-mm stainless steel wire main line and ten, 50-lb fluorocarbon gangions with 11/0 circle hooks. Captured fish were identified, counted, weighed and measured. Otoliths and gonads were removed from red snapper and other reef fish species to determine age and fecundity.
Cuban/Mexico Collaborative Bottom Longline Survey
공공데이터포털
The Southeast Fisheries Science Center Mississippi Laboratories conducts standardized fisheries independent resource surveys in the Gulf of Mexico, South Atlantic, and U.S. Caribbean to provide abundance and distribution information to support regional and international stock assessments. Bottom longline gear was set at locations in Mexican and Cuban waters. The objective of the study was to assess the distribution and abundance of coastal and pelagic sharks. Ancillary objectives included collecting biological and environmental data and tagging.
Congressional Supplemental Longline Survey (2011)
공공데이터포털
The Southeast Fisheries Science Center Mississippi Laboratories conducts standardized fisheries independent resource surveys in the Gulf of Mexico, South Atlantic, and U.S. Caribbean to provide abundance and distribution information to support regional and international stock assessments. In 2010, Congress appropriated supplemental funding to expand these surveys in the Gulf of Mexico in response to the Deepwater Horizon oil spill. Bottom longline stations were conducted throughout the northern Gulf of Mexico during 2011. Sampling occurred on multiple contracted fishing vessels simultaneously in the eastern, central and western Gulf of Mexico during all seasons. Data on species-specific catch rates, body lengths and sex were recorded.
Experimental Bottom Longline Survey (2015)
공공데이터포털
The Southeast Fisheries Science Center Mississippi Laboratories conducts standardized fisheries independent resource surveys in the Gulf of Mexico, South Atlantic, and U.S. Caribbean to provide abundance and distribution information to support regional and international stock assessments. In 2015, an experimental longline survey was conducted to provide additional sampling opportunities outside the annual bottom longline survey time frame and standard protocols, including testing the effects of variable bait type, leader material and covering a larger depth range.
Caribbean Reef Fish Survey
공공데이터포털
The Southeast Fisheries Science Center Mississippi Laboratories conducts standardized fisheries independent resource surveys in the Gulf of Mexico, South Atlantic, and U.S. Caribbean to provide abundance and distribution information to support regional and international stock assessments. A standardized reef fish survey is conducted in the U.S. Caribbean every 2nd or 3rd year with the objective of determining the relative abundance of reef fish on the shelf waters of Puerto Rico and the U.S. Virgin Islands. This survey uses video cameras, fish traps and vertical line gear, with approximately 200 video cameras, 200 vertical line and 100 traps conducted. The camera array consists of four housings positioned orthogonally and center mounted at a height of 51 cm above the bottom of the array. Each housing contains a pair of black-and-white Videre stereo cameras along with a color mpeg camera. Sampling of reef sites with video cameras occurs only during daylight hours, with the first gear deployment one hour after sunrise and the last gear retrieval one hour prior to sunset. Video arrays are soaked for 35 minutes. At sites selected for fish sampling, a chevron (or arrow) fish trap or vertical line is used to capture fish for biological samples. The chevron fish trap is constructed with 1.5-inch vinyl-clad mesh. In its greatest dimensions, the trap is 1.76 m in length, 1.52 m in width and 0.61 m in depth. A 0.4 m by 0.29 m blow out panel is placed on one side and kept closed using 7-day magnesium releases. The fish trap soaks for one hour and is baited with squid. The vertical line consists of a mainline with 10 gangions attached that is either deployed or attached to the vessel. One 8/0, 11/0 or 15/0 circle hook is attached to each gangion and baited with mackerel (Scomber scombrus). The mainline is soaked for five minutes. Most of the animals captured are measured, weighed, tagged and then released. Those individuals which are moribund or have expired are retained to collect biological data pertaining to the life history of these fishes. Habitat mapping is conducted using the SIMRAD ME70 multibeam echosounder. At each site hydrological data is collected using Conductivity Temperature Depth sensor (CTD).
Reef Fish Deepwater Experimental Survey (2005)
공공데이터포털
The Southeast Fisheries Science Center Mississippi Laboratories conducts standardized fisheries independent resource surveys in the Gulf of Mexico, South Atlantic, and U.S. Caribbean to provide abundance and distribution information to support regional and international stock assessments. A deepwater camera was tested at sites located on the Destin Dome in the northern Gulf of Mexico. The camera included artificial lights that were programmed to remain on (with or without a red filter) and turn on and off at intervals. A total of 17 deployments were conducted at depths ranging between 150 meters to 575 meters.
SEAMAP Reef Fish Survey (1992 - 1997; and 2001 - 2015)
공공데이터포털
The Southeast Fisheries Science Center Mississippi Laboratories conducts standardized fisheries independent resource surveys in the Gulf of Mexico, South Atlantic, and U.S. Caribbean to provide abundance and distribution information to support regional and international stock assessments. The reef fish survey is conducted primarily on the outer continental shelf of the Gulf of Mexico along topographic features (e.g. reefs, banks and ledges) between Brownsville, TX to the Dry Tortugas, FL. A two-stage sampling design is used with the first stage or primary sampling units being blocks 10 minutes of latitude by 10 minutes of longitude and the second stage being randomly selected sites within the blocks. The first-stage units are selected by stratified random sampling, with stratum boundaries defined by geographic region (4 regions: South Florida, Northeast Gulf, Louisiana-Texas Shelf, and South Texas), and by reef habitat area (Blocks < 20 km² reef, Blocks > 20 km² reef). Sampling is conducted using a video camera array, vertical line gear and chevron traps with approximately 400 video cameras, 400 vertical line and 100 traps conducted. The camera array consists of four housings positioned orthogonally and center mounted at a height of 51 cm above the bottom of the array. Each housing contains a pair of black-and-white Videre stereo cameras along with a color mpeg camera. Sampling of reef sites with video cameras occurs only during daylight hours, with the first gear deployment one hour after sunrise and the last gear retrieval one hour prior to sunset. Video arrays soak for 35 minutes. At sites selected for fish sampling, a chevron (or arrow) fish trap or vertical line is used to capture fish for biological samples. The chevron fish trap is constructed with 1.5-inch vinyl-clad mesh. In its greatest dimensions, the trap is 1.76 m in length, 1.52 m in width and 0.61 m in depth. A 0.4 m by 0.29 m blow out panel is placed on one side and kept closed using 7-day magnesium releases. The fish trap soaks for one hour and is baited with squid. The vertical line consists of a mainline with 10 gangions. One 8/0, 11/0 or 15/0 circle hook is attached to each gangion and baited with mackerel (Scomber scombrus). The mainline is soaked for five minutes. Most of the animals captured are measured, weighed, tagged and then released. Those individuals which are moribund or have expired are retained to collect biological data pertaining to the life history of these fishes. Habitat mapping is conducted using the SIMRAD ME70 multibeam echosounder. At each site hydrological data is collected using Conductivity Temperature Depth sensor (CTD).
Pelagic Longline Survey (2005)
공공데이터포털
The Southeast Fisheries Science Center Mississippi Laboratories conducts standardized fisheries independent resource surveys in the Gulf of Mexico to provide abundance and distribution information to support regional and international stock assessments. A pilot pelagic longline survey was conducted in 2005 in the northern Gulf of Mexico. The objective of the survey was to examine the feasibility of using pelagic longline gear to collect fisheries independent data on stocks of offshore fishes and to establish protocols for future use of data. Additional objectives included examining the distribution and relative abundance of pelagic fishes in the region and to collect biological and environmental data.
Discrete Water Column Measurements
공공데이터포털
The Southeast Fisheries Science Center Mississippi Laboratories conducts standardized fisheries independent resource surveys in the Gulf of Mexico, South Atlantic, and U.S. Caribbean to provide abundance and distribution information to support regional and international stock assessments. Environmental profiles are acquired during all surveys and are averaged into one meter depth bins. The data are acquired with Sea-Bird SBE25 and SBE9 profilers equipped with water temperature, conductivity, dissolved oxygen, beam transmittance, and fluorescence sensors. The data are processed with Sea-Bird software using a standard processing protocol.
Western Gulf Deepwater Snapper/Grouper/Shrimp Marine Protected Area Survey (1983)
공공데이터포털
The Southeast Fisheries Science Center Mississippi Laboratories conducts standardized fisheries independent resource surveys in the Gulf of Mexico, South Atlantic, and U.S. Caribbean to provide abundance and distribution information to support regional and international stock assessments. Deepwater groupers, snappers and shrimp were sampled in the western Gulf of Mexico using a bottom trawl and bottom longline.