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Marine Ecology Progress Series

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MEPS 166:207-210 (1998)  -  doi:10.3354/meps166207

Atlantic observation of Calanus marshallae (Copepoda; Calanoida)

Rolf C. Sundt*, Webjørn Melle

Institute of Marine Research, PO Box 1870 Nordnes, N-5024 Bergen, Norway

An observation of Calanus marshallae Frost, 1974, on the Atlantic side of the Polar Ocean is reported. Copepods were identified by comparing nucleotide sequences of mitochondrial 16S ribosomal RNA with a previously reported sequence from the Pacific region. Presence of the species in the Barents Sea may explain multi-modal length distributions previously obtained in the region. Potential implications for future identification of Calanus spp. in this region are discussed.

Calanus marshallae · Calanus finmarchicus · Calanus glacialis · Mitochondrial DNA · 16S ribosomal RNA · Molecular species identification

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