Phylogeography of Calanus helgolandicus and the Black Sea copepod Calanus euxinus, with notes on Pseudocalanus elongatus (Copepoda, Calanoida)

Unal E., Frost B. W. , Armbrust V., Kideys A. E.

DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY, cilt.53, ss.1961-1975, 2006 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 53
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1016/j.dsr2.2006.03.017
  • Sayfa Sayıları: ss.1961-1975


Calanus helgolandicus is a widespread epipelagic copepod species whose geographical range extends from the temperate Atlantic Ocean to the northern Mediterranean Sea. Calanus euxinus, recently designated as a distinct species though closely related to C. helgolandicus, occurs in the Black Sea. Very subtle morphological differences distinguish the two species. Pseudocalanus elongatus has a similar geographic range including North Atlantic Ocean, Mediterranean Sea and the Black Sea. In this study, population genetic variation of C helgolandicus, C euxinus and P. elongatus was investigated using DNA sequence variation of 540 base pair (Calanus spp.) and 575 base pair (P. elongatus) regions of mitochondrial cytochrome oxidase I (mtCOI) gene. C helgolandicus was collected from the English Channel, the Adriatic Sea, and C euxinus was collected from various regions of the Black Sea. P. elongatus was collected from the English Channel and the Black Sea.