Some Effects of Ultraviolet Radiation and Climate on the Reproduction of Calanus Finmarchicus (Copepoda) and Year Class Formation in Arcto-Norwegian cod (Gadus Morhua)

• Published in: ICES Journal of Marine Science
• Main Authors: SKRESLET Stig, BORJA Angel, BUGLIARO Luca, HANSEN Georg, MEERKOTTER Ralf, OLSEN Ketil, VERDEBOUT Jean
• Language: English
• Published: ELSEVIER SCI LTD 2005
• Subjects: Calanus finmarchicus; Gadus morhua
• Online Access: https://publications.jrc.ec.europa.eu/repository/handle/JRC31543; https://doi.org/10.1016/j.icesjms.2005.05.019

Zooplankton sampling in 1997 identified the frontal zone of the Norwegian Coastal Current as a reproduction habitat for Calanus finmarchicus in June-August. This area is subject to considerable ultraviolet radiation (UVR), as calculated from satellite observation of ozone and cloudiness. While in situ experiments indicated UVR- induced mortality in reproducing C. finmarchicus, monthly UVR doses during the actula reproduction period did not appear to affect the abundance of the resulting generation of adolescent copepodites. JRC.I.5 - Physical and chemical exposures