화학공학소재연구정보센터
Thermochimica Acta, Vol.251, 11-20, 1995
Energy Strategy of Corophium-Volutator (Pallas, 1766) (Amphipoda) Population from the Gulf of Gdansk
The goal of this paper is to determine seasonal changes in energy values and lipid levels in specimens of Corophium volutator from the Gulf of Gdansk as an energy strategy under the conditions of the inhabited environment. Materials for the study were collected in the near-shore part of the Gulf of Gdansk, at Swarzewo, between October 1991 and September 1992. Energy values were determined by means of a modified calorimetric microbomb of the Phillipson type, Lipids were determined by extraction using a mixture of chloroform, methanol and water. Females generally predominate in the population of Corophium volutator. This population is characterized by a low energy value, 12.69 +/- (SD)3.49 J mg(-1) DW (18.22 +/- (SD)2.49 J mg(-1) AFDW). The small mean lipid level in their bodies, 5.8 +/- (SD) 4.14% DW, explains their relatively low energy value. It has been shown that, additional to such factors as food quality and availability, seasonal variation in the population has a significant influence on the nature of the changes in the energy value and lipid level in Corophium volutator.