Cyclopina gracilis Claus, 1863 (additional source)

Delta area for Acartia bifilosa (Giesbrecht, 1881) 
Delta area for Centropages hamatus (Lilljeborg, 1853) 
Delta area for Eurytemora hirundoides (Nordquist, 1888) 
Delta area for Pseudocalanus elongatus (Brady, 1865) 
Delta area for Temora longicornis (Müller O.F., 1785) 
English Channel for Cyclopina gracilis Claus, 1863 
English Channel for Metridia lucens Boeck, 1865 
German Bight for Metridia lucens Boeck, 1865 
Haringvliet for Eurytemora affinis (Poppe, 1880) 
Helgoland for Cyclopina gracilis Claus, 1863 
Hollands Diep for Eurytemora affinis (Poppe, 1880) 
North Sea for Acartia (Acartiura) clausi Giesbrecht, 1889 
North Sea for Acartia bifilosa (Giesbrecht, 1881) 
North Sea for Acartia longiremis (Lilljeborg, 1853) 
North Sea for Anomalocera patersoni Templeton, 1837 
North Sea for Calanus finmarchicus (Gunnerus, 1770) 
North Sea for Centropages hamatus (Lilljeborg, 1853) 
North Sea for Centropages typicus Krøyer, 1849 
North Sea for Corycaeus anglicus Lubbock, 1857 
North Sea for Cyclopina gracilis Claus, 1863 
North Sea for Monstrilla anglica Lubbock, 1857 
North Sea for Monstrilla dubia Scott T., 1904 
North Sea for Monstrilla helgolandica Claus, 1863 
North Sea for Monstrilla longiremis Giesbrecht, 1893 
North Sea for Oithona nana Giesbrecht, 1893 
North Sea for Oithona plumifera Baird, 1843 
North Sea for Oithona similis Claus, 1866 
North Sea for Paracalanus parvus (Claus, 1863) 
North Sea for Pseudocalanus elongatus (Brady, 1865) 
North Sea for Temora longicornis (Müller O.F., 1785) 
Oosterschelde for Acartia (Acartiura) clausi Giesbrecht, 1889 
Oosterschelde for Acartia bifilosa (Giesbrecht, 1881) 
Oosterschelde for Centropages hamatus (Lilljeborg, 1853) 
Oosterschelde for Oithona nana Giesbrecht, 1893 
Oosterschelde for Temora longicornis (Müller O.F., 1785) 
Wadden Sea for Acartia (Acartiura) clausi Giesbrecht, 1889 
Wadden Sea for Acartia bifilosa (Giesbrecht, 1881) 
Wadden Sea for Centropages hamatus (Lilljeborg, 1853) 
Wadden Sea for Centropages typicus Krøyer, 1849 
Wadden Sea for Corycaeus anglicus Lubbock, 1857 
Wadden Sea for Eurytemora hirundoides (Nordquist, 1888) 
Wadden Sea for Oithona nana Giesbrecht, 1893 
Wadden Sea for Paracalanus parvus (Claus, 1863) 
Wadden Sea for Pseudocalanus elongatus (Brady, 1865) 
Wadden Sea for Temora longicornis (Müller O.F., 1785) 
West Coast of England for Cyclopina gracilis Claus, 1863 

 Biology

 for Metridia lucens Boeck, 1865

Bioluminating species, which is rarely observed in copepod species. [details]

 Distribution

 for Calanus finmarchicus (Gunnerus, 1770)

C. helgolandicus, a congener species of C. finmarchicus, might have a more southern distribution. [details]

 Distribution

 for Calanus helgolandicus (Claus, 1863)

C. helgolandicus might have a more southern distribution compared to the one of the congener species C. finmarchicus. [details]

 Distribution

 for Oithona plumifera Baird, 1843

(By that time?) this species rarely passes south of the Doggerbank. [details]

 Distribution

 for Oncaea subtilis Giesbrecht, 1893

Several species of these occur in the North Sea and the English Channel., but due to their small size (0.5-1 mm) ... [details]