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Tag: Marine ecosystem

Coastal erosion (EU) and fragile ecosystems in the Mediterranean
Among the many impacts erosion has on coastal ecosystems are the destruction of soil surface layers, leading to groundwater pollution and to reduction of water resources; degradation of dunes, leading to desertification...
19 Nov 2013 - by GRID-Arendal
Human impacts on marine ecosystems
Harmonizing traditional economic activity and ecosystem-dependent economic values is a challenge we must address, especially for our coasts and oceans. Persistent environmental pressures, including pollution, overharvest...
15 Oct 2013 - by GRID-Arendal
Indications of structural changes in the marine ecosystem, catch ratios of predatory and plankton feeding fish
Three-quarters of fish stocks are currently exploited to the maximum extent, if not excessively. The Northeast Atlantic Ocean continues to exhibit declining catches, as well as a shift towards fish at lower levels in the...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Species Turnover
Change in the initial species richness in 2005 relative to 2001-2005 average (high-range climate change scenario). Studies predict species invasion will be profound in the Arctic and Southern Oceans. Among others these c...
06 Oct 2009 - by Riccardo Pravettoni, UNEP/GRID-Arendal