Characteristics of eggs and female adults of Calanus finmarchicus, C. glacialis and C. hyperboreus from Disko Bay, western Greenland ...

• Main Authors: Swalethorp, Rasmus, Kjellerup, Sanne, Dünweber, Michael, Nielsen, Torkel Gissel, Møller, Eva Friis, Rysgaard, Søren, Hansen, Benni Winding
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2011
• Subjects: Multiple investigations; International Polar Year 2007-2008 IPY; Calanus finmarchicus; Disko Bay; Greenland; International Polar Year; IPY
• Online Access: https://dx.doi.org/10.1594/pangaea.837965; https://doi.pangaea.de/10.1594/PANGAEA.837965

This is the first high temporal-resolution study in Disko Bay covering population dynamics, grazing, reproduction, and biochemical composition of 3 dominating copepod species (Calanus finmarchicus, C. glacialis and C. hyperboreus) from late winter to midsummer in 2008. C. finmarchicus and C. glacialis ascended to the surface layer at the onset of the spring phytoplankton bloom, followed by C. hyperboreus 2 wk later. C. finmarchicus spawning occurred during the bloom and postbloom period, partially fueled by wax esters. C. glacialis commenced spawning before the bloom, yet it was greatly stimulated when food became available. However, feeding and reproduction was terminated after the main bloom despite the presence of food. In terms of feeding, this was also the strategy for C. hyperboreus. Between pre-bloom and post-bloom, C. finmarchicus showed an increase in carbon, nitrogen, and phospholipid content but a decrease in total lipid content. This was likely the result of protein synthesis, oocyte maturation, ... : Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 ...