Growth and adaptive significance of various forms of energy processes in marine fishes of Arctic

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Based on expeditions and experimental studies, a quantitative assessment of the energy characteristics underlying the interaction of energy exchange processes in fish living in the Arctic has been carried out. The linear and weight growth of non–migratory species, the Arctic flounder Liopsetta glacialis (Pallas, 1776) of the Kara Sea, was studied for the first time. It has been established that in marine cold water fish species, the slowdown in biosynthesis processes leads to a relative decrease in the proportion of entropy generated by metabolic processes, while the growth process in fish at low temperatures becomes more efficient.

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Sobre autores

L. Karamushko

Murmansk Marine Biological Institute, Russian Academy of Sciences (MMBI RAS)

Autor responsável pela correspondência
Email: karamushkol@mmbi.info
Rússia, Murmansk

O. Karamushko

Murmansk Marine Biological Institute, Russian Academy of Sciences (MMBI RAS)

Email: karamushkol@mmbi.info
Rússia, Murmansk

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2. Fig. 1. Change in the growth rate of CW with body mass W in polar flounder from the Barents Sea: (––) – females, (––) – males, and from the Kara Sea: (----) – females, (– – –) – males.

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3. Fig. 2. Changes in the rate of energy metabolism (mg O2 h–1 specimen–1) in the Barents Sea flounder Pleuronectes platessa associated with the specific effect of food after a single feeding: a – at low temperatures; b – at high temperatures; 1 – R = 3%; 2 – R = 6% of the body weight of the individual.

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