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Current and expected state of the ecosystem

BarentsPortal

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

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May 21st
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Current and expected state of the ecosystem

Fish - Redfish (Sebastes mentella and Sebastes marinus)

Fish - Redfish (Sebastes mentella and Sebastes marinus)

Deep-Sea Redfish (Sebastes mentella)

Recruitment failure has been observed in surveys (Figure 4.3.22) for more than a decade. However, signs of improved recruitment 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, e.g., the shrimp fisheries in the Barents Sea and Svalbard area. This will ensure that the recruiting year classes can contribute as much as possible to stock rebuilding.

Last Updated ( Friday, 22 January 2010 12:50 )

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Fish - Greenland halibut (Reinhardtius hippoglossoides)

Fish - Greenland halibut (Reinhardtius hippoglossoides)

In the absence of defined reference points and an accepted assessment the status of the stock cannot be fully evaluated. The stock has been at a low level for several years and it is a long-lived species, which can only sustain low exploitation. Indications from fishery independent surveys are that the stock has increased in recent years (Figure 4.3.25). During the last 15 years, average catches h...

Last Updated ( Friday, 22 January 2010 12:51 )

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Fish - Capelin (Mallotus villosus)

Fish - Capelin (Mallotus villosus)

The stock size is increasing. The spawning stock (Figure 4.3.26) of capelin in 2009 is predicted from the acoustic survey in September 2008 and a model, which estimates maturity, growth and mortality (including predation by cod). The model takes account of uncertainties both in the survey estimate and in other input data. For catch levels in spring 2009, below 390,000 t, the probability of having ...

Last Updated ( Friday, 22 January 2010 12:52 )

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Fish - Herring (Clupea harengus)

Fish - Herring (Clupea harengus)

Based on the most recent estimates of SSB and fishing mortality, ICES classifies the stock as having full reproductive capacity and being harvested sustainably. The 1998, 1999, 2002 and 2004 year classes dominate the current spawning stock which is estimated to 12.6 million t in 2009. Preliminary indications show that the year classes 2005-2008 are below average.  Therefore the abundance of herrin...

Last Updated ( Friday, 22 January 2010 12:52 )

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Fish - Polar cod (Boreogadus saida)

Fish - Polar cod (Boreogadus saida)

The polar cod stock is presently at a high level (Figure 4.3.28). Norway took some catches of polar cod in the 1970s and Russia has fished on this stock more or less on a regular basis since 1970. The stock size has been measured acoustically since 1986 and the stock has fluctuated between 0.1-1.9 million t. In 2008, the stock size was measured to about 1.2 million t., which is equal to the estima...

Last Updated ( Friday, 22 January 2010 12:52 )

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Fish - Blue whiting (Micromestisius poutassou)

Fish - Blue whiting (Micromestisius poutassou)

Based on the most recent estimates of fishing mortality and SSB, ICES classifies the stock as having full reproductive capacity, but being harvested unsustainably. SSB increased to a historical high in 2003 but has decreased since, and is expected to be just above Bpa in 2009. The estimated fishing mortality is well above Fpa. Recruitment in the last decade appears to be at a much higher level tha...

Last Updated ( Friday, 22 January 2010 12:52 )

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Fish - Saithe (Pollachius virens)

Fish - Saithe (Pollachius virens)

Based on the most recent estimates of SSB, ICES classifies the stock as having full reproductive capacity. Based on the most recent estimates of fishing mortality, ICES classifies the stock to be harvested sustainable. Fishing mortality is stable and has since 1996 been below Fpa. The SSB (Figure 4.3.30) has since 1994 been well above Bpa. After a long period of low stock size, the stock recovered...

Last Updated ( Friday, 22 January 2010 12:53 )

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Marine mammals

Marine mammals

High Arctic endemics occupying the Barents Sea Region include the polar bear, walrus, ringed seal, bearded seal, harp seal and hooded seal, white whale, narwhal and bowhead whale. All of these animals are associated with sea ice through much or all of their annual cycle and hence are currently a conservation concern because of the declines in arctic ice coverage over recent decades and predictions...

Last Updated ( Tuesday, 30 April 2013 09:02 )

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Seabirds

Seabirds

The numbers of seabirds breeding in the Barents Sea Region have changed dramatically over the last 50 years. Increase in numbers of several species were associated with a recovery from an excess harvest of eggs and adults in the first half of the century, e.g. on Svalbard and Novaya Zemlya (Barrett and Krasnov, 1996). The changes seen in several populations in the second half of the 20th century c...

Last Updated ( Monday, 14 December 2009 15:40 )

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About BarentsPortal

Polar bears partying on a dead whale carcass. Photo NPI

The BarnetsPortal is a combined web site. It consist of two main elements; presentation of the Joint Norwegian-Russian environmental status report and the Map service. The Report will be updated at regular intervals - initially started with data from 2008. The Map service will continually publish environmental theme data as they become available. Read more...

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...

Sponsors

The BarentsPortal is a project implemented under the Joint Norwegian-Russian Commission on Environmental Protection. The Portal is a joint Norwegian - Russian instrument designed for the mutual exchange and presentation of information and environmental data relevant to the management of the Barents Sea. It is intended to serve as the future tool for updating of the recently published Norwegian - Russian environmental status report (published here), and for further cooperation on ecosystem-based management of the Barents Sea. 
Ministry of the Environment
Ministry of Natural Resourses of the Russian Federation

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

Recommended reading

 

General description of the Barents Sea ecosystem

The Barents Sea is a sub-Arctic shelf ecosystem located between 70° and 80°N. It connect...

 

Current status of the ecosystem

 

Aspects of future change

The following aspects of possible long-term changes in the ecosystem are discussed in the ...

 

Issues relevant for ecosystem management

The following themes are highlighted as examples of issues that are relevant for developme...

 

Future needs for monitoring and integrated status reports

The expected increases in the number and type of impacts on the ecosystem put a premium on...

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