An Individual Based Model of Arctic cod (Boreogadus saida) early life in Arctic polynyas: I. Simulated growth in relation to hatch date in the Northeast Water (Greenland Sea) and the North Water (Baffin Bay)

The importance of Calanus glacialis for the feeding success of young polar cod: a circumpolar synthesis

“…The sampling methodology is detailed in previous publications (Michaud et al 1996 ; Fortier et al 2006 ; Thanassekos and Fortier 2012 ; Bouchard et al 2016 ). In summary, zooplankton and fish larvae were collected with a bongo (Greenland Sea) or a double square net sampler (Beaufort Sea, Laptev Sea and Baffin Bay) carrying nets with mesh sizes ranging from 200 to 750 µm (depending on sampling month), and an additional 10-cm diameter cylindrical net with 50- or 64-μm mesh to sample small polar cod prey such as copepod eggs and nauplii.…”

Spatial segregation, dispersion and migration in early stages of polar cod Boreogadus saida revealed by otolith chemistry

“…Spawning occurs from November to March (Baranenkova et al 1966) and, at least in the Amundsen Gulf region, adults spend this period aggregated near the bottom at depth greater than 140 m (Benoit et al 2008;Geoffroy et al 2011). In addition to these deep spawning aggregations, a number of discrete nearshore, shallow spawning grounds have been suggested in the North American (Craig et al 1982;Thanassekos and Fortier 2012) and Siberian Arctic (see Fig. 1 of Fevolden and Christiansen 1997).…”