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Overview of biotic components - Overview of fish

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The Joint Norwegian-Russian Environmental Status Report for the Barents Sea

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Home The state Overview of the state and expected situation Overview of biotic components - Overview of fish

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Overview of biotic components - Overview of fish

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Greenland halibut. There is at present no accepted assessment for this species, mainly due to age-reading problems and lack of contrast in the data. Photo IMRBased on the most recent estimates of spawning stock biomass, ICES classifies the stocks of cod and haddock to have full reproductive capacity and being harvested sustainably. Signs of improved recruitment of redfish are now seen in the Barents Sea. In this regard, it is of vital importance that the juvenile age groups be given the strongest protection from being caught as bycatch in any fishery.

There is at present no accepted assessment for Greenland halibut, mainly due to age-reading problems and lack of contrast in the data. However, indications from fishery independent surveys are that the stock has increased in recent years.

 

Based on the most recent estimates of SSB and recruitment ICES classifies the stock of capelin as having full reproductive capacity. The stock is increasing and observations during the international 0-group survey in August-September 2008 indicated that the 2008 year class is strong.

Based on the most recent estimates of SSB and fishing mortality of herring, ICES classifies the stock as having full reproductive capacity and being harvested sustainably. Preliminary indications show that the year classes 2005-2008 are below average.  Therefore the abundance of herring in the Barents Sea is believed to be at a relatively low level in 2009.

The polar cod stock is presently at a high level. The natural mortality rate in this stock seems to be very high, and this is explained by the importance of polar cod as prey for cod and different stocks of seals.

In autumn 2008, the acoustic abundance of blue whiting was estimated to 0.1 million tonnes, which is much lower than in 2007. Thus, the abundance of blue whiting in the Barents Sea is expected to stay at a low level until the recruitment to the stock increases again.

ICES classifies the saithe stock as having full reproductive capacity and harvested sustainable.

Last Updated ( Friday, 22 January 2010 12:15 )  

Status Report. The authors

Puffins in the Barents Sea. Photo NP 

More than 100 experts from a total of 9 Russian and 20 Norwegian institutions have participated in the preparation of the report, and the work has been organized in 13 expert groups. The work has been led by Sevmorgeo and PINRO on Russian side and on Norwegian side by the Institute of Marine Research and the Norwegian Polar Institute..

Find author name here...

The Russian - Norwegian cooperation

Waving kelp at the Norwegian coast. Photo IMR

BarentsPortal is a project developed under the Joint Russian - Norwegian Commission on Environmental Cooperation. The joint environmental report is a co-operation project between the Joint Russian - Norwegian Commission on Environmental Cooperation and the Joint Russian-Norwegian Fisheries Commission

Read about Joint Russian - Norwegian Commission on Environmental Cooperation (unfortunately only in Norwegian - please use web based translation)

Read about the Joint Russian-Norwegian Fisheries Commission

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