The Effects of Temperature on Metabolism of the American Eel Anguilla rostrata (LeSueur): Compensation in the Summer and Torpor in the Winter

The behavioral physiology of labroid fishes

“…Micropterus salmoides and Anguilla rostrata (Lemons and Crawshaw, 1981;Walsh et al, 1983). The Q 10 value above l2°C (2.4) was within the range of Q 10 values (2-3) expected based on the effect of temperature of metabolic rate.…”

“…Other investigations have documented hibernation in ectotherms including turtles, snakes, and freshwater fishes; these organisms may also experience anoxic conditions during hibernation. Few marine fishes have previously been shown to hibernate, although the eel Anguilla anguilla was found to have a Q 10 value above 4 (Walsh et al, 1983), suggesting that it may also hibernate.…”

“…Evidence of changes in activities and concentrations of enzymes would be particularly interesting given that starvation during hibernation may affect the way in which energy stores are used. Enzyme activity levels have been examined in European eels Anguilla anguilla that were starved at 5°C and those that were fed at 15°C (Walsh et al, 1983). Most enzyme activities displayed no change.…”

“…At temperatures below 5°C, the American eel Anguilla rostrata ceased eating and buried themselves in the mud. It had a significantly reduced metabolism: Q 10 of 4.1 between 5-10°C (Walsh et al, 1983). Food deprivation may have a large role in effecting metabolic reductions in cold temperatures and this is the focus of the research described in Chapter 4.…”

Functional and energetic characterization of P-gp-mediated doxorubicin transport in rainbow trout (Oncorhynchus mykiss) hepatocytes

“…Fish hepatocytes have been used in physiological and biochemical studies including energy metabolism (Seibert, 1985a;Simon 1985), nitrogen metabolism (Casey et aI., 1983), intracellar pH regulation (Walsh and Moon, 1983), carbohydrate metabolism (Mommsen, 1986), protein synthesis (Koban, 1987), and lipid metabolism (Hazel, 1982). Fish hepatocytes have also been used in toxicological research including cytotoxicity studies (Gagne andBlaise, 1999, 2001), carcinogenicity and genotoxicity studies (Klaunig, J.E., 1984;Gagne and Blaise, 1999;Risso-de Faverney et aI., 2001), studies on xenobiotic metabolism (Pesonen and Anderson, 1997;Bains and Kennedy, 2004), and more recently toxicogenomics (Finne et.…”