Impact Of Climatic Change On The Biological Production In The Barents Sea

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The coverage, extent, and thickness of multi-year sea ice reflect climate conditions over years to decades, making its loss an indicator of Arctic and global climate change. The later freeze-up of sea ice contributes to the rise in cold-season Arctic temperatures and affects the Arctic system s overall condition, which in turn can

The Changing Arctic Ocean: implication for marine biology and

Change and Benefiting from Natural Resources challenges in the NERC strategy. 3 Scope of Call 3.1 Programme Objectives The overarching objective of the Changing Arctic Ocean research programme is to understand how change in the physical environment (ice and ocean) will affect the large-scale ecosystem structure


¥ The integrated impact of climate change on marine ecosystems and human activities, in particular on marine transportation and exploitation of natural resources. ¥ Further collection and interpretation of potential paleo-climatic records to help place present-day change in context with the recent geological past. 6.2.2.


2012). This change impacts oceanic heat fluxes, biological communities and nutrient dynamics, present in the Arctic Ocean. Specifically, in the Barents Sea, climate change is leading to reduced water column stratification and is inducing a transition to a more Atlantic influenced system and reduced sea ice (Lind et al., 2018).

Predicting future ecosystem scenarios for the Labrador Sea

In the Labrador Sea, primary production may be limited through lack of nutrients Impact of climatic change on the biological production in the Barents Sea

The Effects of Climate Change on the World's Oceans Book of

physical and/or biological variables, 3) case studies of existing biological forecast systems, 4) requirements for forecasts - including end-user needs - and assessment of forecast value, and 5) uses of forecasts within a climate-change adaptation context Contributions that link the time-scales of prediction and projection and highlight

Multiple Trophic Markers Trace Dietary Carbon Sources in

the impacts of climate change on the Barents Sea food-web. In this context, the Nansen Legacy Project ( represents a Norwegian research effort to address the impact of climate change on biological, chemical and physical processes in the northern Barents Sea on a seasonal scale. As a contribution


while cold Barents Sea waters impact on the east coast and the southernmost tip of Spitsbergen. A second island feature is the interaction between marine and terrestrial ecosystems, given the proportionally large coastal area. A third feature is that the terrestrial flora and fauna of Svalbard lack some elements that are common on Arctic

Tackling Regional Climate Change By Leaf Albedo Bio

the summer. Strong coolings in the North Atlantic and Barents Sea occur associated with increased wintertime sea-ice extent, with a residual cooling persisting into the summer months. An unexpected benefit of cropland albedo change could thus be a small delay in Arctic sea-ice retreat. Global precipitation patterns (not shown) are also affected

The Arctic: Environmental Issues

The retreat of Arctic sea ice over recent decades8 has led to improved marine access, changes in coastal ecology and biological production, adverse effects on many ice-dependent marine mammals and increased coastal wave action. Future climate change in the polar regions will produce feedback effects that will

Synergies between climate and management for Atlantic cod

The BS cod production has peaked several times since WWII but is significantly higher today if standardized per unit biomass. (A) Overview of BS cod annual production, recruitment, natural mortality, and catch (1946 2010). (B) Corresponding surplus and net production. The difference be-tween surplus production and net production reflects

Potential movement of fish and shellfish stocks from the

Key words: Arctic Ocean, Barents Sea, Bering Sea, biogeography, climate change, fish, fisheries, migration INTRODUCTION Global projections of the implications of climate change indicate that the relative magnitude and rate of environmental change will be greatest at the Poles (IPCC, 2007). Previous studies projected shifts in bio-climatic

Jellyfish abundance and climatic variation: contrasting

matic change, as quantified by the North Atlantic Oscillation Index (NAOI), the Barents Sea-Ice Index (BSII) and changes in the latitude of the Gulf Stream North Wall (GSNW). Hydroclimatic forcing may thus be an important factor influencing the abundance of gelatinous zooplankton and may modulate the scale of any ecosystem impact of jellyfish.

The Changing Arctic Ocean: implication for marine biology and

Arguably the clearest evidence of change in the Arctic Ocean is the continued decline in extent and thinning of the summer sea ice. Satellite-derived estimates of sea-ice thickness and age have shown a fundamental shift from thick multi-year to thinner first year ice

Ocean climate and egg investment in the b lack-legged

96 Appendix Fig. A1). Changes in the inflow have profound effects on the ecosystem of the Barents Sea 97 and rates of biological production through all trophic levels from plankton to fish (Loeng 1989, 98 Eriksen et al. 2012, Johannesen et al. 2012). Any warming of the Barents Sea through an increase in

Faster Atlantic currents drive poleward expansion of

To reveal the impact of changing sea level on surface velocity fields, absolute surface geostrophic velocities, derived from 20°W 0° 20°E 40°E 60°E 60°N 64°N 68°N 72°N 76°N 80°N 4000 3000 2000 1000 0 Depth (m) RUSSIA NORWAY BARENTS SEA NORWEGIAN SEA GREENLAND SEA ICELAND SEA Atlantic Waters Arctic/Polar Waters Coastal

Journal of Animal Ecology 77 Blackwell Publishing Ltd Factors

in the Barents Sea L. R. Sandeman 1 *, N. A. Yaragina 2 and C. T. Marshall 1 1 University of Aberdeen, School of Biological Sciences, Zoology Building, Tillydrone Avenue, Aberdeen AB24 2TZ, Scotland, UK; and 2 Polar Research Institute of Marine Fisheries and Oceanography, 6 Knipovich Street, Murmansk, 183763, Russia Summary 1.


to understand how climate change will impact shifts in the distribution of fish species and through the development of climate models to predict the future effects of climate change on species distribution. Several cases show how increased temperatures can cause fish to migrate northward in the North, Norwegian, Barents and Bering Seas.

Fisheries and Aquaculture - AMAP

climate change scenarios, and (3) uncertainties relating to the socio-economic effects of changes in fish stocks. There are many biological characteristics of fish that change in response to natural variability in the physical environment. However, when fish stocks are heavily exploited, as many arctic stocks have been, it has proven

Breaking down the climate effects on cod recruitment by

son r = 0.28 for the Barents Sea and 0.27 for the North Sea). Cod recruitment and sea temperature data rela-tive to the above regions were supplemented by large-scale climate information represented by the time series of the variability of the North Atlantic Oscillation (NAO), the most dominant mode of atmospheric varia-

Book 31 Oyashio Current -

limited or no impact. The most severe issues are changes in the hydrological cycle and ocean circulation (Global change), and the overexploitation of the fi sheries (Unsustainable exploitation of fi sh and other living resources). Positive temperature anomalies have changed the path of the Kuroshio Current which has consequently

Impacts of climate change on marine mammals, relevant to the

The Barents Sea ecosystem has also experienced major changes in species abundance over the last four decades (Wassmann et al., 2006; Johannesen et al., 2012; Bogstad et al., 2015; Haug et al., 2017), with climate change considered partly responsible for marked increases in abundance of cod,

NOAA - NMFS - Office of Science & Technology Marine

Seven Areas: The NW Atlantic, the Nordic and Barents seas, the Baltic Sea, the North Sea and English Channel the NW Iberian peninsula, the Mediterranean Sea, the North Atlantic Basin. Zooplankton Monitoring Sites in the N Atlantic O Brien, Wiebe, and Falkenhaug, 2013.

Arctic Invasive Alien - DOI

expected with climate change and increased human activity (CAFF 2013; al.; Bellard et al. 2016). Rapidly changing climatic conditions and a growing interest in resource extraction, settlement, and tourism make the Arctic region particularly vulnerable to biological invasion (Bennett et al. 2015, Hall et al. 2010, Walther et al. 2009, McNeely 2001).

Chapter 5. Environmental impact of oil and gas activity in

Climate Change. All the information presented in this chapter is accompanied by reference data, opinions from specialists, legal notes and illustrations. 5.1. The Barents Sea This report will use the example of the Barents Sea to show the vulnerable nature and ecosystem of the Arctic.


Sea polynya is a major area of sea-ice production in the Arctic, and it is one of the key elements of envi-ronmental system of the Laptev Sea. It is therefore essential to improve our knowledge of the Laptev Sea polynya system, as the crucial shelf area with high level of biological activity, and significant contributor to primary production.


wide Barents Sea shelf, where it is cooled and large biological production occurs. Both these processes favor a flux of carbon dioxide from the atmosphere into the surface water. By comparison, a large amount of river runoff enters the Siberian shelf seas, mainly to the Kara and Laptev Seas.

Protecting the environment of the Arctic ecosystem

The southern part of the Barents Sea was opened up in 1989, cf. Parliamentary Report No. 40 (1988-89) on opening up the Barents Sea for oil prospection. Up to now 59 test wells

Biogeographical regions in Europe The Arctic Ocean

keeps the Norwegian Sea and a large part of the Barents Sea ice-free and favourable for the growth of a wide range of open-sea (pelagic) and bottom-living (benthic) species. This biological production sustains huge stocks of pelagic fish in these areas. The extreme conditions in the area create unique marine ecosystems, and some species live on the


Barents Sea, influenced by the warm Atlantic waters, is characterized by positive temperature values in the surface layer and near the bottom. The highest tempera-ture in the coastal zone of the western Barents Sea is up to 16° C (Hydrometeo-rological conditions , 1985). In winter, sea surface temperature is generally less then 3° C.

Fishing, climate change and north-east Atlantic cod stocks

Fishing, climate change and north-east Atlantic cod stocks by Nova Mieszkowska, David Sims and Steve Hawkins May 2007 Marine Biological Association of the UK, Plymouth This report summarises research on past and present states of north-east Atlantic cod stocks, with particular focus on the North Sea regional stocks.

Barange and Perry CC physical - FAO

2. sea temperatures in the North, Nordic and Barents Seas likely to increase by 1-3 °C over the next 50 years. 3. increased wind-induced fluxes of warm Atlantic waters 4. increased vertical stratification and reduced ice cover. 5. primary production is likely to increase in the Barents Sea, 6. zooplankton production is likely to decrease


CLIMATE CHANGE, MARINE ECOSYSTEMS & FISHERIES Climate IS the weather of a place between A.D. 950 and 1250 was mild. The years averaged over a length of time. Weather and from A.D. 1400 to 1850 were

1 Environmental baselines and reconstruction of Atlantic

81 baseline to monitor impact of other environmental change, including climate change and Atlantification 82 of the Barents Sea (Wassmann et al., 2011). 83 84 2. Oceanography 85 Cores were collected in the glacially eroded Bjørnøyrenna trough (Andreassen et al., 2008) located in 86 the Barents Sea (Fig. 1).

Sea Ice Variations Influence Benthic Community Growth Rates

1997a,b). The Barents Sea is an area of rapid climate change and the position of the front is expected to change in response to Arctic warming. Under future climate change scenarios, the Barents Sea is predicted to warm and the Atlantic waters in the southern Barents Sea are expected to spread farther north displacing Arctic water (ACIA, 2005).

Barents region: cooperation and dialogue towards sustainable

Climate change is a major concern for the Barents region and the issue has been on the WGE agenda after the Arctic Climate Impact Assessment report was published by the Arctic Council in 2004. BEAC and the Nordic Council of Ministers have cooperated in the sector of climate change through the project Impacts of climate change on

Fisheries management responses to climate change in the

Sea, given on-going climate change, which is known to affect cod recruitment negatively. It is shown that climate change may have severe biological and economic consequences under the current cod management plan and that the negative effects on the economic per-formance of the fishermen as well as on the abundance of cod can be mitigated by