Starvation metabolism of two common species of chironomids in Biandantang Lake  

Starvation metabolism of two common species of chironomids in Biandantang Lake

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作  者:李晓宇 闫云君 

机构地区:[1]School of Life Science and Technology, Huazhong University of Science and Technology

出  处:《Chinese Journal of Oceanology and Limnology》2006年第4期395-400,共6页中国海洋湖沼学报(英文版)

基  金:Supported by NSFC (No. 30270278, 39430101 and 3960019)

摘  要:Starvation metabolism is one of the important parts of respiration for normal activities of chironomids. During April 1996 to March 1997, the relationships of starvation metabolism and temperature, body weight of two common chironomids in Biandantang Lake were carefully investigated. The results showed relationship between starvation metabolism (R, mgO2/ind.d) and body weight (Ww, mg wet wt) was: Chironomus plumosus, 1gR=-2.573+1.0211gWw (5℃), 1gR=-2.710+1.3541gWw (10℃), 1gR= -1.824+0.8231gWw (15℃), 1gR=-1.364+0.4421gWw (20℃), 1gR=-2.763+1.5171gWw (25℃); and Tokunagayusurika akamusi, 1gR=-2.390+0.7521gWw (5℃), 1gR=-1.978+0.7101gWw (10℃), 1gR=-1.676+ 0.6481gWw (15℃), 1gR=-1.517+0.6501gWw (20℃), 1gR=-2.434+1.2901gWw (25℃). Relationship of starvation metabolism and temperature (T, ℃) was: C. plumosus, R = -0.051 + 0.021T- 0.0006T^2 ; akamusi, R= -0.051 + 0.021T- 0.0006T^2. The complex relationship of the three parameters was: C. plumosus, R=0.0098Ww^0.3882e^0.1068T; T. akamusi, R=0.0012Ww^1.1936e^0.0711r. With the above regressions, the estimated annual starvation metabolisms of the two chironomid species in Biandantang Lake were: C. plumosus, 24.2791 kJ/m^2.a; T. akamusi, 8.7864 kJ/m^2.a, respectively. This provides a firm foundation for the comparative study of bioenergetics of the chironomids.Starvation metabolism is one of the important parts of respiration for normal activities of chironomids. During April 1996 to March 1997, the relationships of starvation metabolism and tempera-ture, body weight of two common chironomids in Biandantang Lake were carefully investigated. The re-sults showed relationship between starvation metabolism (R, mgO2/ind.d) and body weight (Ww, mg wet wt) was: Chironomus plumosus, lgR=-2.573+1.021lgWw (5℃), lgR=-2.710+1.354lgWw (10℃), lgR= -1.824+0.823lgWw (15℃), lgR=-1.364+0.442lgWw (20℃), lgR=-2.763+1.517lgWw (25℃); and Tokuna-gayusurika akamusi, lgR=-2.390+0.752lgWw (5 ℃ ), lgR=-1.978+0.710lgWw (10 ℃ ), lgR=-1.676+ 0.648lgWw (15℃), lgR=-1.517+0.650lgWw (20℃), lgR=-2.434+1.290lgWw (25℃). Relationship of starvation metabolism and temperature (T, ℃) was: C. plumosus, R = -0.051 + 0.021T -0.0006T2 ; T. akamusi, R= -0.051 + 0.021T -0.0006T2. The complex relationship of the three parameters was: C. plu-mosus, R=0.0098Ww0.3882e0.1068T; T. akamusi, R=0.0012Ww1.1936e0.0711T. With the above regressions, the estimated annual starvation metabolisms of the two chironomid species in Biandantang Lake were: C. plumosus, 24.2791 kJ/m2.a; T. akamusi, 8.7864 kJ/m2.a, respectively. This provides a firm foundation for the comparative study of bioenergetics of the chironomids.

关 键 词:CHIRONOMID starvation metabolism TEMPERATURE body weight 

分 类 号:X174[环境科学与工程—环境科学]

 

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