Climate effects on Barents Sea ecosystem dynamics

Padmini Dalpadado; Randi B. Ingvaldsen; Leif Christian Stige; Bjarte Bogstad; Tor Knutsen; Geir Ottersen; Bjornar Ellertsen

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Climate effects on Barents Sea ecosystem dynamics

机译：气候对巴伦支海生态系统动力学的影响

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Effects of climate variability and change on sea temperature, currents, and water mass distribution are likely to affect the productivity and structure of high-latitude ecosystems. This paper focuses on the Barents Sea (BS), a productive Arcto-boreal shelf ecosystem sustaining several ecologically and economically important fish species. The water masses in the region are classified as Atlantic, Arctic, and mixed, each having a distinct ecological signature. The pronounced increase in temperature and a reduction in the area covered by Arctic water that has taken place during the past decade have affected the ecology of the region. An increase in biomass of lipid-rich euphausiids in recent years, possibly linked to the temperature increase, has apparently provided good feeding and growth conditions for several species, including capelin and young cod. The observed reduction in Arctic zooplankton may on the other hand have negative implications for polar cod and other zooplankton predators linked to the Arctic foodweb. Despite these changes, the BS at present seems to maintain relatively stable levels of boreal zooplankton biomass and production, with no significant changes in the abundances of Calanus finmarchicus or the episodic immigrant C. helgolandicus.

机译：气候变化和变化对海水温度，洋流和水质量分布的影响可能会影响高纬度生态系统的生产力和结构。本文的重点是巴伦支海（BS），这是一个生产性很高的北极至北陆架生态系统，维持着几种具有重要生态和经济意义的鱼类。该地区的水团分为大西洋，北极和混合水，每种都有独特的生态特征。过去十年来，气温明显升高，北极水覆盖面积减少，影响了该地区的生态。近年来，可能与温度升高有关的富含脂质的虾up的生物量增加显然为包括毛鳞鱼和鳕鱼在内的几种物种提供了良好的摄食和生长条件。另一方面，观察到的北极浮游动物数量的减少可能会对与北极食物网有关的极地鳕鱼和其他浮游动物捕食者产生负面影响。尽管发生了这些变化，但目前BS似乎仍保持着相对稳定的北方浮游动物生物量和生产水平，而无尾螯虾或偶发的移民C. helgolandicus的丰度没有显着变化。

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来源
《ICES Journal of Marine Science》 |2012年第7期|p.1303-1316|共14页
作者
Padmini Dalpadado; Randi B. Ingvaldsen; Leif Christian Stige; Bjarte Bogstad; Tor Knutsen; Geir Ottersen; Bjornar Ellertsen;
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作者单位

Institute of Marine Research (IMR), PO Box 1870, 5817 Bergen, Norway;

Institute of Marine Research (IMR), PO Box 1870, 5817 Bergen, Norway;

Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biology, University of Oslo, PO Box 1066, Blindern, N-0316 Oslo, Norway;

Institute of Marine Research (IMR), PO Box 1870, 5817 Bergen, Norway;

Institute of Marine Research (IMR), PO Box 1870, 5817 Bergen, Norway;

Institute of Marine Research, Caustadalleen 21, 0349 Oslo, Norway;

Institute of Marine Research (IMR), PO Box 1870, 5817 Bergen, Norway;

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正文语种 eng
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关键词
barents sea; climate; zooplankton; temperature; trophic interactions;

机译：巴伦支海;气候;浮游动物温度;营养相互作用;

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7. Quality assessment of atmospheric surface fields over the Baltic Sea from an ensemble of regional climate model simulations with respect to ocean dynamics**The work presented in this study was jointly funded by the Swedish Environmental Protection Agency (SEPA), the Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning (FORMAS), and the European Commission within the projects ECOSUPPORT (Advanced modelling tool for scenarios of the Baltic Sea ECOsystem to SUPPORT decision making, ref. no. 08/381), AMBER (Assessment and Modelling Baltic Ecosystem Response, ref. no. 08/390) and INFLOW (Holocene saline water inflow changes into the Baltic Sea, ecosystem responses and future scenarios, ref. no. 2008–1885). All three projects are part of the BONUS+program (http://www.bonusportal.org). [O] . Meier H.E. Markus, Höglund Anders, Döscher Ralf, 2011

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Climate effects on Barents Sea ecosystem dynamics

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