Abstract:
:Impact of select levels of temperature, individually and in combination, with different initial chlorine concentrations on the growth and reproduction of phytoplankter Chlorella vulgaris and zooplankton C. reticulata, C. viridis, and Diaptomus forbesi was evaluated. During the experiment, optimum growth temperature for the alga was estimated as 26 degrees C, even though alga showed considerable growth up to 36 degrees C. However, initial chlorine at concentrations >or=0.25 mg l(-1) adversely affected growth (P < 0.05 to 0.001) at all select temperature levels (26 degrees C, 31 degrees C, 33 degrees C, 36 degrees C, 39 degrees C, 42 degrees C, and 45 degrees C). Investigations toward effects of different temperatures (26 degrees C, 31 degrees C, 33 degrees C, and 36 degrees C) on zooplankton indicated that survivability of these organisms was affected at temperatures >or=33 degrees C. However, the percent growth rates of zooplankters at 26 degrees C were significantly higher (P < 0.05) than those at 31 degrees C, 33 degrees C, and 36 degrees C. Initial chlorine levels of 0.5 and 0.25 mg l(-1) were lethal to zooplankton; however, zooplankton survival was not affected at 0.06 mg l(-1) chlorinated water at all selected temperatures.
journal_name
Arch Environ Contam Toxicoljournal_title
Archives of environmental contamination and toxicologyauthors
Zargar S,Ghosh TKdoi
10.1007/s00244-006-0108-1subject
Has Abstractpub_date
2007-08-01 00:00:00pages
191-7issue
2eissn
0090-4341issn
1432-0703journal_volume
53pub_type
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