Author/Editor		Simčič, Tatjana; Brancelj, Anton
Title		Energy exploitation in Chirocephalus croaticus (Steuer, 1899) (Crustacea: Anostraca): survival strategy in an intermittent lake
Type		članek
Source		Hydrobiologia
Vol. and No.		Letnik 437
Publication year		2000
Volume		str. 157-63
Language		eng
Abstract		Electron transport system (ETS) activity was measured in Chirocephalus eroaticus from the intermittent lake, Petelinjsko Jezero. The ETS activities were measured at 5, 10, 15, 20, and 25 degreesC, and were studied separately in juveniles, females and males. Juveniles had significantly higher activity than adults at a standard temperature of 20 degreesC. The mass-specific ETS activity decreased with increasing size of the animals; the value b was 0.787. Respiration rates (R) were determined at 20 degreesC and the ratio ETS/R (standard deviation) for C. croaticus was 1.430.46 (n=38). ETS activity increased with temperature. Females had higher Q10 than males in higher temperature range (t-test; t=2.50; d.f.=8; p<0.05). Activation energy Ea was higher for females than males (t-test; t=2.35; d.f.=8; p<0.05). Females exhibited lower ETS activity than males over the lower temperature range, but their ETS could function more efficient at higher temperature.
Descriptors		CRUSTACEA FRESH WATER ELECTRON TRANSPORT SEX FACTORS AGE FACTORS BODY WEIGHT