Is the poleward expansion by Atlantic cod and haddock threatening native polar cod, Boreogadus saida?

By Paul E. Renaud, Jørgen Berge, Ø. Varpe, O. Lønne, J. Nahrgang, Camilla A M Ottesen, Ingeborg G. Hallanger. Polar Biology, 2011

169 citations recorded by the source corpus.

Subfields: Ecology, Global and Planetary Change, Nature and Landscape Conservation

View Paper: https://www.semanticscholar.org/paper/af0060468d8789d736f24597501c4f310ab5e052

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Citations in the corpus

Potential misidentifications of two climate indicator species of the marine arctic ecosystem: Calanus glacialis and C. finmarchicus (2012, background): “…source of fundamental importance for a number of ecologically and commercially important species such as polar cod (e.g. Lønne and Gulliksen 1989; Renaud et al. 2012), little auk (Steen et al. 2007; Karnovsky et al. 2008), bowhead whales (Weslawski et al. 2000) and for large pelagic fish…”
The importance of tidewater glaciers for marine mammals and seabirds in Svalbard, Norway (2014, background): “Additionally, Renaud et al. (2012) have studied the diet of polar cod from glacial fjords.”
Under-ice distribution of polar cod Boreogadus saida in the central Arctic Ocean and their association with sea-ice habitat properties (2014, background): “The diet of polar cod under sea-ice, however, is not well documented, because the inaccessibility of this habitat has so far only allowed a small number of living fish to be analysed, leaving little evidence of polar cod feeding on sea-ice resources (Renaud et al. 2012).”
First records of Atlantic mackerel (Scomber scombrus) from the Svalbard archipelago, Norway, with possible explanations for the extension of its distribution (2015, background): “Many boreal fish species have recently shifted their distributions northward in response to increasing ocean temperatures and decreasing sea ice (Drinkwater, 2009; Wienerroither et al., 2011; Renaud et al., 2012; Hop and Gjøsæter, 2013; Christiansen et al., 2014; Table 3).”
Non-consumptive mortality in copepods: occurrence of Calanus spp. carcasses in the Arctic Ocean during winter (2014, background): “Potential planktivorous predators in our study area were amphipods of the genus Themisto (Kraft et al. , 2013), euphausids, ctenophores and ﬁshes (mainly polar cod ( Boreogadus saida ) but also Atlantic cod ( Gadus morhua ) and haddock ( Melanogrammus aegleﬁnus ) (e.g. Renaud et al ., 2012).”