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Phytoplankton pigments concentration in the Black Sea Phytoplankton pigments concentration in the Black Sea
Illustration in a set of graphics prepared for a pilot assessment report on the Black Sea drainage basin, for the UNEP Global Impact on Waters Assessment (GIWA). All data and information were prepared in close collaboration with the GIWA Black Sea team and the GIWA secretariat. The graphics were never not used in this form in the final report on the Black Sea, published in 2005.
25 Feb 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Reduction of the Zernov`s Phyllophora fields in the Bay of Odessa Reduction of the Zernov`s Phyllophora fields in the Bay of Odessa
Illustration in a set of graphics prepared for a pilot assessment report on the Black Sea drainage basin, for the UNEP Global Impact on Waters Assessment (GIWA). All data and information were prepared in close collaboration with the GIWA Black Sea team and the GIWA secretariat. The graphics were not used in this form in the final report on the Black Sea, published in 2005.
07 Nov 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Endangered species in the black sea region Endangered species in the black sea region
Illustration in a set of graphics prepared for a pilot assessment report on the Black Sea drainage basin, for the UNEP Global Impact on Waters Assessment (GIWA). All data and information were prepared in close collaboration with the GIWA Black Sea team and the GIWA secretariat. The graphics were never not used in this form in the final report on the Black Sea, published in 2005.
07 Nov 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Nutrients in the Varna Bay and the Romanian Black Sea costal area Nutrients in the Varna Bay and the Romanian Black Sea costal area
Illustration in a set of graphics prepared for a pilot assessment report on the Black Sea drainage basin, for the UNEP Global Impact on Waters Assessment (GIWA). All data and information were prepared in close collaboration with the GIWA Black Sea team and the GIWA secretariat. The graphics were never not used in this form in the final report on the Black Sea, published in 2005.
07 Nov 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Relationship between the decrease in Turkish anchovy catch and the growth of Mnemiopsis, 1968-1990 Relationship between the decrease in Turkish anchovy catch and the growth of Mnemiopsis, 1968-1990
Illustration in a set of graphics prepared for a pilot assessment report on the Black Sea drainage basin, for the UNEP Global Impact on Waters Assessment (GIWA). All data and information were prepared in close collaboration with the GIWA Black Sea team and the GIWA secretariat. The graphics were not used in this form in the final report on the Black Sea, published in 2005.
07 Nov 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Comparison of long-term variability of different characteristics of the Black Sea ecosystem Comparison of long-term variability of different characteristics of the Black Sea ecosystem
Illustration in a set of graphics prepared for a pilot assessment report on the Black Sea drainage basin, for the UNEP Global Impact on Waters Assessment (GIWA). All data and information were prepared in close collaboration with the GIWA Black Sea team and the GIWA secretariat. The graphics were not used in this form in the final report on the Black Sea, published in 2005.
07 Nov 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Fish catch in the Black Sea over the last 30 years, Bulgaria and Romania Fish catch in the Black Sea over the last 30 years, Bulgaria and Romania
Illustration in a set of graphics prepared for a pilot assessment report on the Black Sea drainage basin, for the UNEP Global Impact on Waters Assessment (GIWA). All data and information were prepared in close collaboration with the GIWA Black Sea team and the GIWA secretariat. The graphics were never not used in this form in the final report on the Black Sea, published in 2005.
07 Nov 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Expansion of hypoxia and anoxia zones in the northwest of the Black Sea Expansion of hypoxia and anoxia zones in the northwest of the Black Sea
Illustration in a set of graphics prepared for a pilot assessment report on the Black Sea drainage basin, for the UNEP Global Impact on Waters Assessment (GIWA). All data and information were prepared in close collaboration with the GIWA Black Sea team and the GIWA secretariat. The graphics were not used in this form in the final report on the Black Sea, published in 2005.
07 Nov 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Total fish catch in the Black Sea over the last 30 years Total fish catch in the Black Sea over the last 30 years
Illustration in a set of graphics prepared for a pilot assessment report on the Black Sea drainage basin, for the UNEP Global Impact on Waters Assessment (GIWA). All data and information were prepared in close collaboration with the GIWA Black Sea team and the GIWA secretariat. The graphics were never not used in this form in the final report on the Black Sea, published in 2005.
07 Nov 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Species diversity in the world's seas Species diversity in the world's seas
The graphic compares the amount of diversity of marine mammals, sharks, molluscs, birds, shrimp and lobsters in various sea regions. Coral reefs are among the most productive and diverse of all natural ecosystems. Recent decades have been catastrophic for them, however; some 10% of the world’s reefs may already have been degraded beyond recovery, and another 30% are in decline. Meanwhile biologically rich coastal wetlands, including mangrove fore...
28 Sep 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Wilderness in Norway 1900-1992 Wilderness in Norway 1900-1992
This map shows changes in wilderness areas in Norway from 1900 to 1992, and the sucessive decrease when human activities have expanded. Wilderness is defined as areas more than 5 km from roads, railways, power lines and other major man-made changes/installations.
28 Sep 2005 - by UNEP/GRID-Arendal
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Fynbos ecoregion in South Africa Fynbos ecoregion in South Africa
The Fynbos ecoregion of South Africa stretches out in a coastal belt on the Western cape. This region is characterisied by heath- and shrubland and a mediterranean climate. Many of the plants inhabitating this ecoregion are evergreen with needle-life leafs.
28 Sep 2005 - by Hugo Ahlenius, UNEP/GRID-Arendal
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Wilderness in Norway and Europe Wilderness in Norway and Europe
This map shows wilderness in Norway and Svalbard. For the Norway map wilderness is defined as areas more than 5 km from roads, railways, power lines and other major man-made changes/installations. The European map uses a different definition of wilderness with 6 km as the excluding distance. Also, areas smaller than 4000 km2 are excluded from the map.
28 Sep 2005 - by UNEP/GRID-Arendal
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Number of trees planted, world map - UNEP Billion Tree Campaign, May 2008 Number of trees planted, world map - UNEP Billion Tree Campaign, May 2008
The UNEP Billion Tree Campaign represents a unique worldwide tree planting initiative, aimed at empowering citizens to corporations and people up to presidents to embrace the climate change challenge. By 2008, 18 months since the launch of the initiative, the campaign has managed to catalyze the planting of two billion trees, double its original target. The campaign, spearheaded by the UN Environment Programme (UNEP) and the World Agroforestry Ce...
28 Sep 2005 - by Hugo Ahlenius, UNEP/GRID-Arendal
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Major pathways and origins of invasive species infestations in the marine environment Major pathways and origins of invasive species infestations in the marine environment
All across the planet, the number and severity of outbreaks and infestations of invasive species (i.e. species purposefully or accidentally introduced in non-native environments) is growing, and invasions of marine habitats are now occurring at an alarming rate. Exotic and invasive species have been identified by scientists and policymakers as a major threat to marine ecosystems, with dramatic effects on biodiversity, biological productivity, hab...
01 Feb 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
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Invasive species in the marine environment - problem regions Invasive species in the marine environment - problem regions
The locations of major problem areas for invasive species infestations or occurrence of exotic species in the marine environment. The impacted areas are concurrent with the areas subjected to the worst pollution, the most intensive fisheries and bottom trawling, and major shipping routes. The areas in the figure have been highlighted based on an overview of literature, and the delineation of the areas are approximate.
01 Feb 2008 - by Hugo Ahlenius, UNEP/GRID-Arendal
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Fish diversity in freshwater systems Fish diversity in freshwater systems
Although freshwater ecosystems such as rivers, lakes and wetlands occupy less than 2% of the Earth's total land surface, they provide a wide range of habitats for a significant proportion of the world's plant and animal species. This graphic explains which areas of the world have high and low populations of fish species and of endemic fish.
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Trends in marine and freshwater populations Trends in marine and freshwater populations
The Marine Species Population Index provides an assessment of the average change over time in the populations of 217 species of marine mammals, birds, reptiles, and fish. The index represents the average value of six regional ocean indices. More pronounced declines are seen in the southern oceans, which is attributed to the fact that major losses and degradation of marine ecosystems in the industrialised world took place prior to 1970. Marine sp...
17 May 2005 - by Delphine Digout, UNEP/GRID-Arendal
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Coastlines under threat Coastlines under threat
Out of the coastlines of the world, the coasts in Europe, Asia and Africa are of highest concern, and where extra care needs to be taken to ensure that measures are taken to protect the coasts in all aspects (erosion, biodiversity, buffering capacity etc). The graphic shows the ratio of coastlines around the world that are facing moderate or significant threats.
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Nitrate in major rivers Nitrate in major rivers
Considering the data for all the rivers at the continental level, there has been little change in nitrate (NO3-N) concentrations between the two decades under comparison. Changes in the median value were not statistically significant. European rivers showed the highest nitrate loads transported to the marine environment. Comparing data from the two decades, North American and European rivers have remained fairly stable, while major river basins i...
17 May 2005 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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