Layer: MARMAP and SEIFIS Sampling Grid (ID: 65)

Parent Layer: Fish Deepwater Surveys (MARMAP-SEFIS)

Name: MARMAP and SEIFIS Sampling Grid

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Description: Marine Spatial Data: This dataset came from the Marine Resources Monitoring, Assessment and Prediction (MARMAP), Southeast Area Monitoring and Assessment: South Atlantic (SEAMAP-SA) Reef Fish Survey and the Southeast Fishery-Independent Survey (SEFIS) programs. The dataset is comprised of all established stations available for sampling by MARMAP, SEAMAP-SA and SEFIS. Each year, a number of stations are randomly selected from the station universe and targeted for that year; therefore every station within the station universe is not sampled every year. The station universe also may contain stations not presented in the species data collected for the GSAA project due to the random nature of station selection. The data were summarized into 1 x 1 minute latitude/longitude grids which provide the number of stations available within each grid. General overview: For forty years, the Marine Resources Research Institute (MRRI) at the South Carolina Department of Natural Resources (SCDNR), through the Marine Resources Monitoring, Assessment and Prediction (MARMAP) program, has conducted fisheries-independent research on groundfish, reef fish, ichthyoplankton, and coastal pelagic fishes within the region between Cape Lookout, North Carolina, and Ft Pierce, Florida. The overall mission of the program has been to determine distribution, relative abundance, and critical habitat of economically and ecologically important fishes of the South Atlantic Bight (SAB), and to relate these features to environmental factors and exploitation activities. Research toward fulfilling these goals has included trawl surveys (from 6-350 m depth); ichthyoplankton surveys; location and mapping of reef habitat; sampling of reefs throughout the SAB; life history and population studies of priority species; tagging studies of commercially important species and special studies directed at specific management problems in the region. Survey work has also provided a monitoring program that has allowed the standardized sampling of fish populations over time and development of an historical base for future comparisons of long-term trends. MARMAP has developed a long-term database for reef fish that has proven valuable in interpreting fisheries landings data and developing regulations for protecting reef fish resources. Restrictions on minimum sizes of most commercially important species make it difficult to monitor life history parameters and abundance data from samples collected from the fishery landings. MARMAP has been the only long-term program off the Atlantic coast of the southeastern United States that monitors reef fish composition, length frequency, abundance, and life history based on fishery-independent data in existence until recently. These data provide critical input for the assessments of stock status conducted by NOAA Fisheries, and greatly assist stock assessment scientists and the Council in the management of snapper/grouper complex of the South Atlantic Bight. To expand efforts in the SAB two additional monitoring programs were established; SEAMAP-SA Reef Fish (initiated in 2009) and SEFIS (initiated in 2010). Each program adopted sampling methodologies identical to those established by MARMAP when they joined the SAB Reef Fish Survey. MARMAP, SEAMAP-SA Reef Fish and SEFIS currently sample natural live bottom habitat from Cape Lookout, NC to the Ft. Pierce, FL area. The current main objectives for the survey are to: 1.) sample reef fishes in the snapper-grouper complex using a variety of gears in live bottom, rocky outcrop, high relief, and mud bottom habitats, 2.) collect detailed data for time series description of species’ annual composition and relative abundance, 3.) obtain population characteristics on fish species of interest through life history analysis, including age and growth, sex ratio, size and age of sexual maturation and transition, spawning season, fecundity, and diet, 4.) collect hydrographic data (e.g. depth, temperature, salinity, etc.) for comparison to fish abundance and composition indices, 5.) collect DNA samples from selected fish species for stock identification, and 6.) expand sampling effort in North Carolina and south Florida as well as reconnoiter new live bottom areas with underwater video to add to the existing long-term database housed at SCDNR/MARMAP. Priorities are dictated by the SouthEast Data, Assessment and Review (SEDAR) schedule and other management considerations.

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