Global oceanic eutrophication and hypoxia hotspots and reported fish decline

Global oceanic eutrophication and hypoxia hotspots and reported fish decline Human activities such as agriculture, domestic and industrial wastewater as well as natural processes may cause excessive nutrient loads, known as eutrophication. Increased nutrient loads can lead to many adverse effects including harmful algal blooms, and in extreme cases hypoxia. Hypoxia, or oxygen depletion, is an environmental phenomenon where the concentration of dissolved oxygen in the water column decreases to a level that can no longer support living aquatic organisms. Mitigation of the negative effects of eutrophication requires reduction of nutrient inputs and an ecosystem-based management strategy. The map shows the location of water bodies impacted by eutrophication and reported hypoxia and impacts (fish reduction) between 1985 and 2000. The data is sourced from the World Resource Institute (https://www.wri.org/resource/interactive-map-eutrophication-hypoxia). The pattern of eutrophic sites reflects the availability of data, with more research available in places like the US and Europe than many other parts of the world. postal

geonode:gnc_hypoxia_hotspots hypoxia hotspots (1985-2000) This layer represents 479 sites identified as experiencing hypoxia, 55 sites that once experienced hypoxia but are now improving, and 228 sites that experience other symptoms of eutrophication, including algal blooms, species loss, and impacts to coral reef assemblages. These data were compiled using a literature search conducted by Dr. Robert Diaz of VIMS and WRI staff. Because this map depends on available data, geographic areas with more data availability (such as the United States) may show relatively more problem areas compared to areas with less data. EPSG:4326 image/png application/atom xml application/atom+xml application/json;type=utfgrid application/openlayers application/pdf application/rss xml application/rss+xml application/vnd.google-earth.kml application/vnd.google-earth.kml xml application/vnd.google-earth.kml+xml application/vnd.google-earth.kml+xml;mode=networklink application/vnd.google-earth.kmz application/vnd.google-earth.kmz xml application/vnd.google-earth.kmz+xml application/vnd.google-earth.kmz;mode=networklink atom image/geotiff image/geotiff8 image/gif image/gif;subtype=animated image/jpeg image/png8 image/png; mode=8bit image/svg image/svg xml image/svg+xml image/tiff image/tiff8 image/vnd.jpeg-png kml kmz openlayers rss text/html; subtype=openlayers utfgrid geonode:gnc_eutrophic_hotspots eutrophic hotspots (1985-2000) his layer represents 479 sites identified as experiencing eutrophication, 55 sites that once experienced hypoxia but are now improving, and 228 sites that experience other symptoms of eutrophication, including algal blooms, species loss, and impacts to coral reef assemblages. These data were compiled using a literature search conducted by Dr. Robert Diaz of VIMS and WRI staff. Because this map depends on available data, geographic areas with more data availability (such as the United States) may show relatively more problem areas compared to areas with less data. EPSG:4326 image/png application/atom xml application/atom+xml application/json;type=utfgrid application/openlayers application/pdf application/rss xml application/rss+xml application/vnd.google-earth.kml application/vnd.google-earth.kml xml application/vnd.google-earth.kml+xml application/vnd.google-earth.kml+xml;mode=networklink application/vnd.google-earth.kmz application/vnd.google-earth.kmz xml application/vnd.google-earth.kmz+xml application/vnd.google-earth.kmz;mode=networklink atom image/geotiff image/geotiff8 image/gif image/gif;subtype=animated image/jpeg image/png8 image/png; mode=8bit image/svg image/svg xml image/svg+xml image/tiff image/tiff8 image/vnd.jpeg-png kml kmz openlayers rss text/html; subtype=openlayers utfgrid