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Dataset Title: | Density of Loggerhead Turtles in the Mediterranean Sea
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Institution: | Naval Undersea Warfare Center Division (Dataset ID: biology_8514_94a0_0784_7406) |
Information: | Summary ![]() ![]() ![]() |
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Attributes { y { Float64 actual_range 866362.5469, 2516362.5469; String axis "Y"; String long_name "y coordinate of projection"; String standard_name "projection_y_coordinate"; String units "m"; } x { Float64 actual_range 2883324.732, 6673324.732; String axis "X"; String long_name "x coordinate of projection"; String standard_name "projection_x_coordinate"; String units "m"; } abundance { Float32 _FillValue -9999.0; String long_name "Abundance of biological entity specified elsewhere per unit area of the bed"; Float32 missing_value -9999.0; } coefficient_of_variation { Float32 _FillValue -9999.0; String long_name "Coefficient of Variation"; Float32 missing_value -9999.0; } NC_GLOBAL { String acknowledgement "The authors would like to thank all the data providers and organizations that contributed line transect surveys and dive data to this project: Blue World Institute, The University of Valencia, Tethys Institute, ISPRA, IFAW, The University of Exeter, ACCOBAMS, PELAGIS, Alnitak, Stazione Zoologica Anton Dorne, Julie Belmont, Simone Panigada, Olivier Boisseau, Giancarlo Lauriano, Drasko Holcer, Caterina Fortuna, Vincent Ridoux, Helene Peltier, Toni Raga, David March, Robin Snape, Sandra Hochscheid, Annette Broderick, Brendan Godley, Robin Snape, and Julia Haywood. Jason Roberts and Ana Canadas provided analytical support and cleaned and delivered much of the line transect survey data. Elizabeth Becker and David Miller provided R code and advice on including environmental variability in the uncertainty estimate. Danielle Jones of the Naval Facilities Engineering Command Atlantic assisted with project management."; String CDI "Climate Data Interface version 2.0.4 (https://mpimet.mpg.de/cdi)"; String cdm_data_type "Grid"; String CDO "Climate Data Operators version 2.0.4 (https://mpimet.mpg.de/cdo)"; String citation "Sparks, Laura M. DiMatteo, Andrew D (2020) Loggerhead Sea Turtle Density in the Mediterranean Sea. Technical Report prepared for Naval Undersea Warfare Center Division."; String comment "Uses attributes recommended by https://cfconventions.org"; String Conventions "CF-1.8, COARDS, ACDD-1.3"; String creator_email "laura.m.sparks.civ@us.navy.mil"; String creator_institution "Naval Undersea Warfare Center Division"; String creator_name "Sparks, Laura M.; DiMatteo, Andrew D"; String creator_url "https://discover.dtic.mil/"; String date_created "2024-03-05"; String GDAL "GDAL 3.4.1, released 2021/12/27"; String grid_mapping_crs_wkt "PROJCS[\"ETRS89-extended / LAEA Europe\",GEOGCS[\"ETRS89\",DATUM[\"European_Terrestrial_Reference_System_1989\",SPHEROID[\"GRS 1980\",6378137,298.257222101,AUTHORITY[\"EPSG\",\"7019\"]],AUTHORITY[\"EPSG\",\"6258\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4258\"]],PROJECTION[\"Lambert_Azimuthal_Equal_Area\"],PARAMETER[\"latitude_of_center\",52],PARAMETER[\"longitude_of_center\",10],PARAMETER[\"false_easting\",4321000],PARAMETER[\"false_northing\",3210000],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],AXIS[\"Northing\",NORTH],AXIS[\"Easting\",EAST],AUTHORITY[\"EPSG\",\"3035\"]]"; Float64 grid_mapping_false_easting 4321000.0; Float64 grid_mapping_false_northing 3210000.0; String grid_mapping_GeoTransform "2878324.732 10000 0 2521362.5469 0 -10000"; Float64 grid_mapping_inverse_flattening 298.257222101; Float64 grid_mapping_latitude_of_projection_origin 52.0; String grid_mapping_long_name "CRS definition"; Float64 grid_mapping_longitude_of_prime_meridian 0.0; Float64 grid_mapping_longitude_of_projection_origin 10.0; String grid_mapping_name "lambert_azimuthal_equal_area"; Float64 grid_mapping_semi_major_axis 6378137.0; String grid_mapping_spatial_ref "PROJCS[\"ETRS89-extended / LAEA Europe\",GEOGCS[\"ETRS89\",DATUM[\"European_Terrestrial_Reference_System_1989\",SPHEROID[\"GRS 1980\",6378137,298.257222101,AUTHORITY[\"EPSG\",\"7019\"]],AUTHORITY[\"EPSG\",\"6258\"]],PRIMEM[\"Greenwich\",0,AUTHORITY[\"EPSG\",\"8901\"]],UNIT[\"degree\",0.0174532925199433,AUTHORITY[\"EPSG\",\"9122\"]],AUTHORITY[\"EPSG\",\"4258\"]],PROJECTION[\"Lambert_Azimuthal_Equal_Area\"],PARAMETER[\"latitude_of_center\",52],PARAMETER[\"longitude_of_center\",10],PARAMETER[\"false_easting\",4321000],PARAMETER[\"false_northing\",3210000],UNIT[\"metre\",1,AUTHORITY[\"EPSG\",\"9001\"]],AXIS[\"Northing\",NORTH],AXIS[\"Easting\",EAST],AUTHORITY[\"EPSG\",\"3035\"]]"; String history "Tue Jul 23 13:28:53 2024: ncatted -O -a acknowledgement,global,o,c,The authors would like to thank all the data providers and organizations that contributed line transect surveys and dive data to this project: Blue World Institute, The University of Valencia, Tethys Institute, ISPRA, IFAW, The University of Exeter, ACCOBAMS, PELAGIS, Alnitak, Stazione Zoologica Anton Dorne, Julie Belmont, Simone Panigada, Olivier Boisseau, Giancarlo Lauriano, Drasko Holcer, Caterina Fortuna, Vincent Ridoux, Helene Peltier, Toni Raga, David March, Robin Snape, Sandra Hochscheid, Annette Broderick, Brendan Godley, Robin Snape, and Julia Haywood. Jason Roberts and Ana Canadas provided analytical support and cleaned and delivered much of the line transect survey data. Elizabeth Becker and David Miller provided R code and advice on including environmental variability in the uncertainty estimate. Danielle Jones of the Naval Facilities Engineering Command Atlantic assisted with project management. density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a citation,global,o,c,Sparks, Laura M. DiMatteo, Andrew D (2020) Loggerhead Sea Turtle Density in the Mediterranean Sea. Technical Report prepared for Naval Undersea Warfare Center Division. density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a license,global,o,c,Distribution Statement A: Approved for public release: distribution unlimited. density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a comment,global,o,c,Uses attributes recommended by https://cfconventions.org density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a geospatial_lon_units,global,o,c,degrees_east density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a geospatial_lat_units,global,o,c,degrees_north density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a publisher_institution,global,o,c,Flanders Marine Institute (VLIZ) density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a creator_institution,global,o,c,Naval Undersea Warfare Center Division density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a geospatial_lon_max,global,o,f,1882655.229 density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a geospatial_lon_min,global,o,f,-1892344.771 density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a geospatial_lat_max,global,o,f,865336.071 density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a geospatial_lat_min,global,o,f,-849663.929 density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a publisher_url,global,o,c,https://emodnet.ec.europa.eu/en/biology density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a publisher_email,global,o,c,bio@emodnet.eu density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a publisher_name,global,o,c,EMODnet-Biology density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a project,global,o,c,EMODnet-Biology density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a institution,global,o,c,Naval Undersea Warfare Center Division density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a creator_url,global,o,c,https://discover.dtic.mil/ density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a creator_email,global,o,c,laura.m.sparks.civ@us.navy.mil density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a creator_name,global,o,c,Sparks, Laura M.; DiMatteo, Andrew D density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a date_created,global,o,c,2024-03-05 density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a standard_name_vocabulary,global,o,c,CF Standard Name Table v1.8 density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a license,global,o,c,CC-BY density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a source,global,o,c,https://seamap.env.duke.edu/models/NUWC/Med/ density_loggerhead_mediterranean_8514_epsg_3035.nc Tue Jul 23 13:28:53 2024: ncatted -O -a history,global,o,c,https://doi.org/10.3389/fmars.2022.930412 density_loggerhead_mediterranean_8514_epsg_3035.nc https://doi.org/10.3389/fmars.2022.930412 2024-09-07T23:56:44Z (local files) 2024-09-07T23:56:44Z https://erddap.emodnet.eu/griddap/biology_8514_94a0_0784_7406.das"; String infoUrl "https://discover.dtic.mil/"; String institution "Naval Undersea Warfare Center Division"; String keywords "abundance, area, bed, biological, center, coefficient, coefficient_of_variation, data, density, division, elsewhere, entity, loggerhead, mediterranean, naval, per, sea, specified, turtles, undersea, unit, variation, warfare"; String license "Distribution Statement A: Approved for public release: distribution unlimited."; String naming_authority "emodnet.eu"; String NCO "netCDF Operators version 5.0.6 (Homepage = http://nco.sf.net, Code = https://github.com/nco/nco)"; String project "EMODnet-Biology"; String publisher_email "bio@emodnet.eu"; String publisher_institution "Flanders Marine Institute (VLIZ)"; String publisher_name "EMODnet-Biology"; String publisher_type "institution"; String publisher_url "https://emodnet.ec.europa.eu/en/biology"; String source "https://seamap.env.duke.edu/models/NUWC/Med/"; String sourceUrl "(local files)"; String standard_name_vocabulary "CF Standard Name Table v70"; String summary "Loggerhead turtles are a globally vulnerable species of marine turtle. The Mediterranean Sea subpopulation, which ranges throughout the entire Mediterranean basin, is listed as least concern but experiences significant threats in the region including bycatch in fisheries, climate change, coastal development, and marine pollution. Broad-scale patterns of distribution and abundance can provide regional managers a tool to effectively conserve and manage this species at basin and sub-basin scales. Here NUWC uses aerial and shipboard line transect survey data collected between 2003 and 2018 to estimate density and abundance throughout the Mediterranean Sea using distance sampling methodology. A spatial density model estimating loggerhead density, abundance, and distribution across the Mediterranean Sea was generated as a long-term annual average. The model was adjusted for availability bias using dive data from loggerhead turtles tagged with time depth recorders from multiple regions within the Mediterranean Sea. Geographic extrapolation in areas near surveys was undertaken with caution. Mean abundance for the long-term average model was estimated as 994,000 CV 0.20. This estimate represents the first basin-wide estimate of abundance for this species in the Mediterranean not based on demographic models. These data have been re-projected from the original published data presented in DiMatteo et al. 2024, in order to meet EMODnet technical requirements. Small spatial mismatches and value discrepancies between the original model and the version available here may exist but have not been formally assessed."; String title "Density of Loggerhead Turtles in the Mediterranean Sea"; } }
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