Coastal Eutrophication Potential for 2000 (2019)

Coastal eutrophication potential (CEP) measures the potential for riverine loadings of nitrogen (N), phosphorus (P), and silica (Si) to stimulate harmful algal blooms in coastal waters. These values were then converted into risk scores based on the thresholds defined in the methodology. Higher values indicate higher levels of excess nutrients with respect to silica, creating more favorable conditions for harmful algal growth and eutrophication in coastal waters downstream. These risk scores range from low (<-5) to extremely high (>5).

The CEP indicator is a useful metric to map where anthropogenic activities produce enough point-source and nonpoint-source pollution to potentially degrade the environment. When nitrogen and phosphorus are discharged in excess over silica with respect to diatom, a major type of algae, undesirable algal species often develop. The stimulation of algae leading to large blooms may in turn result in eutrophication and hypoxia (excessive biological growth and decomposition that reduces oxygen available to other organisms). It is therefore possible to assess the potential for coastal eutrophication from a river’s nitrogen, phosphorus, and silica loading. Values are available per sub-basin (HydroBASIN level 6).

Data and Resources

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Additional Info

Field	Value
Source	https://app.mapx.org/static.html?views=MX-6C1JI-LBBJP-J79N4&zoomToViews=true#JAAc6
Author	UNEP/GRID-Geneva
Maintainer	UNEP/GRID-Geneva
Last Updated	December 7, 2022, 08:17 (UTC)
Created	December 7, 2022, 08:17 (UTC)
GUID	MX-6C1JI-LBBJP-J79N4
Issued	2022-03-14 15:09:37
Language	EN
Modified	2022-04-28 15:22:24
Publisher email	info@mapx.org
Publisher name	UNEP/GRID-Geneva
Theme	Web Map
data_type	geospatial
keywords_m49	WLD
projects_description	This project was set up in the frame of the implementation of the Cartagena Convention Secretariat’s 2020/2021 work plan and budget approved by the Sixteenth Meeting of the Contracting Parties to the Convention for the Protection and Development of the Marine Environment of the Wider Caribbean Region held from July 28-30, 2021
projects_id	MX-L2W-HWZ-RIC-LM1-Y0V
projects_title	Caribbean Sea and Wider Caribbean Region
range_end_at_year	2022
range_start_at_year	2000
source_abstract	Coastal eutrophication potential (CEP) measures the potential for riverine loadings of nitrogen (N), phosphorus (P), and silica (Si) to stimulate harmful algal blooms in coastal waters. These values were then converted into risk scores based on the thresholds defined in the methodology. Higher values indicate higher levels of excess nutrients with respect to silica, creating more favorable conditions for harmful algal growth and eutrophication in coastal waters downstream. These risk scores range from low (<-5) to extremely high (>5). The CEP indicator is a useful metric to map where anthropogenic activities produce enough point-source and nonpoint-source pollution to potentially degrade the environment. When nitrogen and phosphorus are discharged in excess over silica with respect to diatom, a major type of algae, undesirable algal species often develop. The stimulation of algae leading to large blooms may in turn result in eutrophication and hypoxia (excessive biological growth and decomposition that reduces oxygen available to other organisms). It is therefore possible to assess the potential for coastal eutrophication from a river’s nitrogen, phosphorus, and silica loading. Values are available per sub-basin (HydroBASIN level 6).
source_title	Coastal Eutrophication Potential for 2000 (2019)
spatial	WLD