Population dynamics and production of euphausiids: 4. Euphausia krohni, Nematoscelis megalops and Thysanoessa gregaria, and eight rare species in the North Atlantic Ocean
Lindley, J.A. (1982). Population dynamics and production of euphausiids: 4. Euphausia krohni, Nematoscelis megalops and Thysanoessa gregaria, and eight rare species in the North Atlantic Ocean. Mar. Biol. (Berl.) 71(1): 1-6 In: Marine Biology: International Journal on Life in Oceans and Coastal Waters. Springer: Heidelberg; Berlin. ISSN 0025-3162; e-ISSN 1432-1793, more |  |
| Keywords | Aquatic communities > Plankton > Zooplankton
Biological production > Secondary production
Developmental stages > Adults
Developmental stages > Larvae
Population dynamics
Euphausia krohnii (Brandt, 1851) [WoRMS]; Euphausiidae Dana, 1850 [WoRMS]; Nematoscelis megalops G.O. Sars, 1883 [WoRMS]; Thysanoessa gregaria G.O. Sars, 1883 [WoRMS]
Marine/Coastal |
| Abstract | Seasonal changes in the abundance, size and occurrence of furciliae of Euphausia krohni (Brandt), Nematoscelis megalops (G. O. Sars) and Thysanoessa gregaria G. O. Sars are described from samples taken at 10 m depth with the Continuous Plankton Recorder (CPR) over a period of 2 yr (January 1966 to December 1967) in the North Atlantic Ocean. E. krohni and T. gregaria were found to breed through most of the year but N. megalops bred only in spring and summer. Annual mean biomass was calculated directly from the data and production was estimated from published P:B ratios. The seasonal occurrences of E. brevis Hansen, E. hemigibba Hansen, E. mutica Hansen, E. tenera Hansen, Stylocheiron longicorneG. O. Sars, S. maximum Hansen, Thysanopoda acutifrons Holt and Tattershall and T. aequalis Hansen in the samples are described. |
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