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Mediterranean Sea fish landings Mediterranean Sea fish landings
Total fish landings increased exponentially from 1950 to 1980, with current production fluctuating around 800.000 tonnes annually (Garcia 2011) during the last three decades. Of that total, 85 % comes from six countries: Italy, Turkey, Greece, Spain, Tunisia and Algeria (UNEP/MAP 2012).
19 Nov 2013 - by GRID-Arendal
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Fish catch in the Mediterranean Sea sub-regions Fish catch in the Mediterranean Sea sub-regions
Fishing is an important issue for the Mediterranean. Although it puts only a relatively small quantity of produce on the market compared with the demand, it is a significant source of employment and an important component of the Mediterranean cultural identity. It accounts for 420.000 jobs, 280.000 of which are fishermen, and the average prices of landed produce are much higher than world prices.
19 Nov 2013 - by GRID-Arendal
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Total sturgeon catch in the Caspian Total sturgeon catch in the Caspian
Six sturgeon species are found in the Caspian Sea and its drainage basin: Russian sturgeon (Acipenser gueldenstaedtii), Persian sturgeon (A. persicus), Stellate sturgeon (A. stellatus), Ship sturgeon (A. nudiventris), Sterlet (Acipenser ruthenus) and Beluga (Huso huso). The bulk of the world’s remaining stock of wild sturgeon resources is found in the Caspian, which also accounted in the past for between 80 and 90 per cent of total world caviar ...
17 Oct 2013 - by GRID-Arendal
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Fragmentation pf the Volga river over the last 60 years Fragmentation pf the Volga river over the last 60 years
The construction of several dams along spawning rivers (mainly the Volga River) significantly altered water flows and destroyed about 90 per cent of the sturgeon’s spawning grounds (UNEP/GRID-Arendal 2006).
17 Oct 2013 - by GRID-Arendal
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Collapse of Tulka in the Caspian Collapse of Tulka in the Caspian
The comb jelly is well adapted to the habitat (salinity, temperature, and food range) and reproduces faster than endemic species. As it eats the same food as them, it has had a drastic effect on their numbers, upsetting the entire food chain. The commercial fishing industry is afraid of losing the kilka/tulka (g. Clupeonella) and other valuable catches, with consequent effects on human livelihoods and food sources for the Caspian seal and...
07 Mar 2012 - by GRID-Arendal
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Hydropower potential (theoretical possitibility for electricity generation) Hydropower potential (theoretical possitibility for electricity generation)
xHydropower, generating electricity through turbines, represents a clean and renewable energy source, but not without problems. Dams and reservoirs disrupt the natural flow, and may increase siltation and evaporation, in addition to severe impacts for wildlife, for instance migrating fish. The gross theoretical capability, presented in this map, represents a calculation based on the topography and precipitation in the countries, and is the amount...
20 Jul 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
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Hydropower potential (theoretical possitibility for electricity generation) Hydropower potential (theoretical possitibility for electricity generation)
xHydropower, generating electricity through turbines, represents a clean and renewable energy source, but not without problems. Dams and reservoirs disrupt the natural flow, and may increase siltation and evaporation, in addition to severe impacts for wildlife, for instance migrating fish. The gross theoretical capability, presented in this map, represents a calculation based on the topography and precipitation in the countries, and is the amount...
20 Jul 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
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Sprat - sampling area Sprat - sampling area
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000). The graphic shows the sampling area for Sprat.
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Sprat - sampling area Sprat - sampling area
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000). The graphic shows the sampling area for Sprat.
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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baltic21_ba-fish-cod3 test baltic21_ba-fish-cod3 test
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000 )
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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baltic21_ba-fish-cod3 test baltic21_ba-fish-cod3 test
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000 )
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Cod, age 2 - recruitment and spawning stock biomass Cod, age 2 - recruitment and spawning stock biomass
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000). This graphic compares recruitment and spawning stock biomass of cod, age 2.
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Cod, age 2 - recruitment and spawning stock biomass Cod, age 2 - recruitment and spawning stock biomass
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000). This graphic compares recruitment and spawning stock biomass of cod, age 2.
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Herring - recruitment and spawning stock biomass Herring - recruitment and spawning stock biomass
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000). The graphic compares the recruitment and spawning stock biomass of Herring.
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Herring - recruitment and spawning stock biomass Herring - recruitment and spawning stock biomass
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000). The graphic compares the recruitment and spawning stock biomass of Herring.
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Cod, age 1 - landings and fishing mortality Cod, age 1 - landings and fishing mortality
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000). This graphic compares landings and fishing mortality og cod, age 1.
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Cod, age 1 - landings and fishing mortality Cod, age 1 - landings and fishing mortality
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000). This graphic compares landings and fishing mortality og cod, age 1.
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Cod, age 1 - recruitment and spawning stock biomass Cod, age 1 - recruitment and spawning stock biomass
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000). This graphic compares recruitment and spawning stock biomass of cod.
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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Cod, age 1 - recruitment and spawning stock biomass Cod, age 1 - recruitment and spawning stock biomass
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000). This graphic compares recruitment and spawning stock biomass of cod.
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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baltic21_ba-fish-cod6 x baltic21_ba-fish-cod6 x
Graphics from the year 2000 Baltic 21 biannual indicator-based status report on sustainable development in the Baltic Sea Region (Baltic 21 Series No 1/2000 )
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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