Tag: Fish

Sturgeon catch in the Caspian Sea and caviar imports
The sturgeon – sought for its caviar – has declined dramatically in what is now a heavily illegal trade. To reduce the illicit trade in any wildlife, responses must include front line protection, customs control, investi...
18 Dec 2014 - by Philippe Rekacewicz, GRID Arendal
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 countri...
19 Nov 2013 - by GRID-Arendal
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 componen...
19 Nov 2013 - by GRID-Arendal
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), St...
17 Oct 2013 - by GRID-Arendal
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
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, upsetti...
07 Mar 2012 - by GRID-Arendal
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...
20 Jul 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
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...
20 Jul 2007 - by Hugo Ahlenius, UNEP/GRID-Arendal
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
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
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
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
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 ...
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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 ...
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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 bioma...
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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 bioma...
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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, ...
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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, ...
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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 ...
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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 ...
10 Mar 2006 - by Philippe Rekacewicz, UNEP/GRID-Arendal
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