Changes in the energy content of common species from Hornsund, Southwest Spitsbergen |
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| Authors: | ANNA SZANIAWSKA MACIEJ WOLOWICZ |
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| Institution: | Anna Szaniawska and Maciej Wolowicz, Institute of Oceanography, Gdansk University, Czolgistow 46, 81–378 Gdynia, Poland;June 1985 (revised December 1985). |
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| Abstract: | During the period August 1981 to July 1982, samples of six species of Amphipoda common to Hornsund were collected, and a study of their energy value changes was carried out. Only slight fluctuations of energy values were observed throughout the year, and no distinct seasonal changes as in the case of boreal organisms. Individuals of greater body size exhibit higher energy values. The lowest energy values 10.93 kJ g−1 d.w. (SD = 3.01) and highest ash contents 29.8% (SD = 7.6) were found in small Amphipoda (e.g. Ischyrocerus anguipes) , while species attaining greater body size were characterized by higher energy values and lower ash contents, for example Gammarellus homari 16.96 kJ g−1d.w. (SD = 0.50), and 22.9% (SD = 3.3%) ash. |
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