Experimental study on acute effects of the combined exposure to temperature increase and chlorination upon the marine copepodAcartia omorii
✍ Scribed by K. Marumo; E. Sato; Y. Ishikawa
- Publisher
- Springer-Verlag
- Year
- 1992
- Tongue
- English
- Weight
- 522 KB
- Volume
- 114
- Category
- Article
- ISSN
- 0025-3162
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✦ Synopsis
The acute effects of combined exposure to temperature increase and chlorination on a neritic marine copepod, Acartia omorii Bradford (collected offshore of Onjuku, Japan in 1982), were investigated in the laboratory. Continuous flow exposure and batch exposure modes were compared. Based on the results of continuous flow experiments, the 24-h median lethal concentration (24-h LCso, in mg 1-1) of total residual chlorine was estimated using the multiple regression equation below, with a multiple correlation coefficient of 0.955: 24-h LCs0 = 2.988 -0.034 dT-1.611 logzo t where dT is temperature rise (~ and t is exposure duration (rain). In batch experiments, the predictive power of the multiple regression equation was reduced, probably due to variations in chlorine concentration during exposure duration.