The Biology of a Marine Copepod, Calanus Finmarchicus Gunnerus

abundant adult animals antennae antennules Barents Sea basipod body Bogorov Bulge Calanus Calanus finmarchicus cavity cells Chlamydomonas Clyde area Clyde sea area copepodite stages copepods coxa crustacea deep water depth described diatom increase diatoms diurnal dorsal East Greenland effect egg laying endopod exopod experiments Ext Int faecal pellets feeding female Calanus filter fjords flagellates fringe Gauld genital Grobben Gulf of Maine Gunnerus hatching hauls helgolandicus Jepps July laboratory laid large number later light limbs Loch Fyne male Marshall maxilla maxillipedes maxillules membrane metasome Millport moult muscles Nauplius nerve Nicholls and Orr North Sea observations organisms ovary oviducts pair of swimming parasites phytoplankton plankton posterior produced Raymont respiration ripe setae Skeletonema Sømme spawning species specimens spermatophore Stage V Calanus summer surface swimming feet temperature thoracic segment Tromsø urosome usually ventral vertical migration winter zooplankton