gov.noaa.nmfs.inport:39218 eng UTF8 dataset National Centers for Coastal Ocean Science resourceProvider NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov pointOfContact 2025-05-15T19:16:11 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) NOAA/NCCOS Point Shapefile - 100m2 Fish Density for Tortugas Ecological Reserve and Riley's Hump, United States, 2011, WGS84 Tortugas_2011 publication NOAA/NMFS/EDM 39218 https://www.fisheries.noaa.gov/inport/item/39218 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information Taylor, Chris chris.taylor@noaa.gov principalInvestigator https://coastalscience.noaa.gov/ WWW:LINK-1.0-http--link Citation URL Online Resource download https://www.ccfhr.noaa.gov/ WWW:LINK-1.0-http--link Citation URL Online Resource download The research mission was conducted in the Dry Tortugas, FL by National Ocean Service scientists from the Center for Coastal Habitat and Fisheries Research (CCFHR) during 2011 aboard the NOAA Ship Nancy Foster. The overall objective of CCFHR's research in the Tortugas is to examine the effects of implementation of the Tortugas North Ecological Reserve (TNER). The establishment of the TNER, a no-take reserve, in 2001 provided the opportunity to examine the response of the fish and benthic communities to the creation of a refuge for exploited reef fishes. Historically, exploitation of reef fishes in the Tortugas has focused on large predatory reef fishes, primarily snappers and groupers and, to a lesser extent, grunts. Trends in populations of these targeted species are expected to vary relative to geographic variation in fishing mortality (F). Increasing trends in targeted species abundance are expected in the TNER where all fishing was prohibited in 2001. Within adjacent areas managed as the Exclusive Economic Zone (EEZ), where both federally sanctioned commercial and recreational fisheries are permitted, exploited populations are expected to be depressed relative to those in the TNER. Within the Dry Tortugas National Park (DTNP) where fishing effort is limited to recreational hook and line fishing, trends in exploited species are expected to be intermediate to those observed in the TNER and EEZ. Cascading effects due to change in abundance of exploited species is expected to indirectly impact corals and other sessile benthic communities. Sampling to detect reserve implementation effects was conducted at the ecotone between the reef habitat of the banks and the surrounding soft-bottom shelf where the structure and composition of communities should provide sensitive indicators of a reserve effect. Energy flow across reef-sand boundaries is critical to reef communities. Energy and nutrients are imported to the reef by nocturnally foraging reef fish that feed in sand, algae, and seagrass flats adjacent to the reef. The majority of the TNER (approximately 70%) consists of soft-bottom shelf habitat, and previous work on the west Florida shelf suggests that benthic primary production is the major energy source supporting fish biomass. In addition to providing ecologically sensitive sampling locations, the interface between bank and shelf provided a distinct landscape feature suited to a comparative analysis of management impact. Observations were made using 1) a stratified-random survey design for scuba divers visual observations, 2) a systematic survey of fish and fauna using scientific splitbeam echosounders (fisheries sonar) to map fish densities and biomass on the shelf, coral and softbottom habitats. 1. To design and implement a mobile fisheries sonar survey in concert with multibeam echosounder hydrographic surveys to assess and map fish densities and biomass within and outside management zones.2. To assess distribution of fish densities relative to management and ecological reserve boundaries and other differences that may be associated with management zones and habitat types, particularly as fish distributions relate to movements between habitat types.3. To assess the extent of fish density distributions in comparison with diver visual surveys and fish community assessments. completed NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov pointOfContact NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov custodian asNeeded OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA place Global Change Master Directory (GCMD) Location Keywords 20.8 Environmental Monitoring theme NOS Data Explorer Topic Category 120kHz Coral ES60 Fish Survey Fisheries Acoustics Hydrographic Acoustics NOAA Reef Simard Splitbeam Sonar theme Dry Tortugas Florida Keys Florida Keys National Marine Sancturay Gulf of Mexico Riley's Hump place DOC/NOAA/NOS/NCCOS > National Centers for Coastal Ocean Science, National Ocean Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2017-04-24 publication 8.5 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Tortugas_2011 project InPort otherRestrictions Cite As: National Centers for Coastal Ocean Science, [Date of Access]: NOAA/NCCOS Point Shapefile - 100m2 Fish Density for Tortugas Ecological Reserve and Riley's Hump, United States, 2011, WGS84 [Data Date Range], https://www.fisheries.noaa.gov/inport/item/39218. NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. otherRestrictions Access Constraints: Please cite any use of this data. otherRestrictions Use Constraints: Not for Navigation otherRestrictions Distribution Liability: These data were prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data have been used by NOAA, no warranty, expressed or implied, is made by NOAA as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by NOAA in the use of these data or related materials.NOAA makes no warranty regarding these data, expressed or implied, nor does the fact of distribution constitute such a warranty. NOAA can not assume liability for and damages caused by any errors or omissions in these data, nor as a result of the failure of these data to function on a particular system. unclassified NOAA Data Management Plan (DMP) NOAA/NMFS/EDM 39218 https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/nccos/dmp/pdf/39218.pdf WWW:LINK-1.0-http--link NOAA Data Management Plan (DMP) NOAA Data Management Plan for this record on InPort. information crossReference vector eng; US environment oceans ESRI ArcGIS 10.1 -83.155202 -82.02249 24.462463 24.641489 | Currentness: Ground Condition 2011-07-31 2011-08-03 false eng false 2011_Tortugas_Merged 2017-04-11 publication NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov distributor https://coastalscience.noaa.gov/ WWW:LINK-1.0-http--link https://coastalscience.noaa.gov/ Online Resource download https://www.ccfhr.noaa.gov/ WWW:LINK-1.0-http--link https://www.ccfhr.noaa.gov/ Online Resource download dataset Completeness Report These data consist of fish densitys in the Dry Tortugas Florida Keys National Marine Sanctuary. The data was collected during corresponding multibeam operations. Conceptual Consistency Not applicable Acoustic data was collected aboard the NOAA Ship Nancy Foster using ES120-7C splitbeam transducer. The Kongsberg ES120-7C is a hull mounted transducer and the dataset was collected with a corresponding Kongsberg ES general purpose transceiver(GPT) and Simard EK60 software was used in the data acquisition. Data was collected during all shifts of multibeam survey. 2012-01-01T00:00:00 Echoview 4 was used in this step of the data processing. The .raw file formate was edited for erroneous ping returns and acoustic noise. Fish were track using a tracking algorithm and the fish tracks were export in a .csv formate. 2011-01-01T00:00:00 Fisheries Acoustic Processing Program Version 5.1 and R Scripting were used to calculate the density and size of fish through out the water column. Divided fish into 100 meter square area and size classes. Projection set to WGS84. 2011-01-01T00:00:00