Continuous plankton records: Geographical variations in numerical abundance, biomass and production of euphausiids in the North Atlantic Ocean and the North Sea

✍ Scribed by J. A. Lindley

• Publisher: Springer-Verlag
• Year: 1982
• Tongue: English
• Weight: 483 KB
• Volume: 71
• Category: Article
• ISSN: 0025-3162
• DOI: 10.1007/bf00396986

✦ Synopsis

Geographical variations in the numbers, biomass and production of euphausiids and the contribution of common species to the total are described from samples taken during 1966 and 1967 in the North Atlantic Ocean and the North Sea by the Continuous Plankton Recorder at 10 m depth. Euphausiids were most abundant in the central and western North Atlantic Ocean and the Norwegian Sea.

Thysanoessa longicaudata (Kroyer) was numerically dominant. Biomass was greatest in the Norwegian Sea and the north-eastern North Sea where Meganyetiphanes norvegica (M. Sars) accounted for 8l and 59%, respectively, of the total biomass. Production was highest offNova Scotia and in Iberian coastal waters; the dominant species were T. raschi (M. Sars) in the former area and Nyetiphanes couchi (Bell) in the latter. The mean P: B ratios were correlated with temperature.