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Primary production, phytoplankton and light in Straumsbukta near Tromso
Throndsen, J.; Heimdal, B.R. (1976). Primary production, phytoplankton and light in Straumsbukta near Tromso. Astarte 9(2): 51-60
In: Astarte: Journal of Arctic Biology. Universitetsforlaget: Tromsø. ISSN 0044-9768, more
Peer reviewed article  

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Keywords
    Phytoplankton; Primary production; Chaetoceros debilis Cleve, 1894 [WoRMS]; Emiliania huxleyi (Lohmann) W.W.Hay & H.P.Mohler, 1967 [WoRMS]; Phaeocystis pouchetii (Hariot) Lagerheim, 1896 [WoRMS]; Marine; Fresh water

Authors  Top 
  • Throndsen, J.
  • Heimdal, B.R.

Abstract
    The investigation includes measurements of primary production in situ, light extinction at 450 nm, 522 nm, 583 nm and 653 nm, and phytoplankton composition at one station in Straumsbukta (60° 33 . 5'N, 18° 37'E) at four different seasons. Primary production varied with a factor of 10 SUP-13 from winter to summer, and production in summer was at noon 60 times that of midnight. Size fractions passing a 5 mu m nylon net conributed with 6% (summer) - 73% (winter) of the production in surface water samples. Nanoplankton flagellates, Phaeocystis pouchetii, Chaetoceros debilis and Coccolithus (Emiliania) huxleyi were the main phytoplankton species in December, April, July and September, respectively.

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