Calorific value, lipid content and radioactivity of common species from Hornsund, southwest Spitsbergen

Article English OPEN
Wolowicz, Maciej ; Szaniawska, Anna (1986)
  • Publisher: Co-Action Publishing
  • Journal: Polar Research (issn: 1751-8369, eissn: 1751-8369)
  • Related identifiers: doi: 10.3402/polar.v4i1.6923

In the summer of 1981 the common flora and fauna of 28 species from Hornsund were collected, and the energy value, lipid content and global activity determined. It was found that the plants had low energy values, varying from 12.26 2 0.42 kJ g-' dry weight to 15.45 +1.00 kJ-' dry weight. The highest values in animals were noted in Liparis liparis (Pisces) 22.15 2 0.89kJg-' dry weight, and Sagitta ekgans (Chaetognatha) 20.64 2 0.49 kJ g-', the lowest being in Orchomene minuta (Amphipoda) 11.30 2 0.74 kJ g-' d.w. The lipid contents in the species studied were mostly low, the mean range from lowest to highest being 1.37-8.60% for plants and 7.14-31.93% for animals, and they were proportional to the energy value. Both the energy values and lipid contents were comparable to those in similar species from other waters. The global ? activity in the organisms analysed was not high; at the same time plants had a higher content of radioactive isotopes, 1.97-61.9 pCi g-' d.w., than animals, 5.2-17.8pCi g-' d.w.
  • References (28)
    28 references, page 1 of 3

    Amerski, L. 1975: Qualitative and quantitative study on marine phytoplankton from the Bear Island region, M. S . Thesis, Gdansk University.

    Bamstedt, U. 1978: Studies on the deep-water pelagic community of Korsfjorden, western Norway: seasonal variation in weight and biochemical composition of Chiridius armatus (Copcpoda), Boreornysis arcrica (Mysidacea) and Eukrohnia hamata (Chaetognatha) in relation to their biology. Sarsia 63, 145- 154.

    Dowgiaii, A. 1975: Chemical composition of an animal's body and its food. Pp. 160-199 in Methods for Ecological Bioenergetics. IBP Handbook No. 24. Blackwell, London.

    Falk-Petersen, S. & Hopkins, C. C. F. 1981: Ecological investigations on the zooplankton community in Balsfjorden, Northern Norway: population dynamics of the euphausids Thysanoessa intermis Kroyer, Thysanoessa raschi M. Sars, and Meganyctiphanes norvegica M. Sars, in 1976 and 1977. J. Plankton Res. 3 , 177-192.

    Falk-Petersen, I. B. & Sargent, J . R. 1982: Reproduction of Asteroids from Balsfjorden, Northern Norway: Analyses of lipids in the gonads of Ctenodiscus crispatus, Asterias lincki and Pteroaster militaris. Mar. Biol. 69, 291-298.

    Gileva, N. 1965: Uber die Anreicherzung einiger chemischer Elemente durch Siisswasseralgen. Tr. Inst. Biol. UFAN SSR 45, 5-31.

    Henderson, R . J., Falk-Petersen, S . & Sargent. J. R . 1982: The composition and biosynthesis of lipids in Thysanoessa raschi from the Clyde Estuary, Scotland. Mar. B i d . 70, 7-12.

    Hiyama, Y. 1956: Cycle biologique des produits derfission du point d'une de la contamination des organismes marins. Act. Conf. int. energ. atom. Geneve 13, 432-434.

    Ikeda, T. 1972: Chemical composition and nutrition of zooplankton in the Bering Sea. Pp. 433-442 in Takenouti, A . Y. (ed.): Biological Oceanography of the Northern Pacific Ocean. Tokyo ldemitsu Shoten.

    Klekowski, R. 2.& Bgczkowski, J . 1973: A New Modification of microbomb calorimeter. Ekol. Pol. 21, 229-236.

  • Metrics
    No metrics available
Share - Bookmark