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HERO ID
1237354
Reference Type
Journal Article
Title
Acute toxicity tests with Streptocephalus proboscideus (Crustacea: Branchiopoda: Anostraca): Influence of selected environmental conditions
Author(s)
Centeno M, DF; Brendonck, L; Persoone, G
Year
1993
Is Peer Reviewed?
Yes
Journal
Chemosphere
ISSN:
0045-6535
EISSN:
1879-1298
Report Number
BIOSIS/94/06004
Volume
27
Issue
11
Page Numbers
2213-2224
Language
English
Abstract
BIOSIS COPYRIGHT: BIOL ABS. The influence of selected environmental conditions on the acute toxicity of 3 selected chemicals (K2Cr2O7, CuSO4 and Na pentachlorophenate) to instar II-III larvae of Streptocephalus proboscideus was evaluated. Mortality after a 24-h incubation was used as effect criterion. Factorial experiments were set up resulting to 25 different combinations of temperature and water hardness. The effects of pH of the dilution medium and light regime during toxicant exposure were also assessed. Results (24-h LC50's) from nearly 200 tests revealed that the degree of variation is chemical- and test condition-dependent. Water hardness had the greatest effect on larval sensitivity, showing a significant (p 0.05) negative correlation. A significant effect (p 0.05) on sensitivity was furthermore detected only for the extreme values of temperature (30? C) and pH (6.0) tested. Light conditions during acute exposure caused no change in larval sensitivity.
Keywords
Ecology
;
Ecology
;
Biochemical Studies-General
;
External Effects-Light and Darkness
;
External Effects-Temperature as a Primary Variable (1971- )
;
Pathology
;
Metabolism-General Metabolism
;
Toxicology-Environmental and Industrial Toxicology
;
Public Health: Environmental Health-Air
;
Invertebrata
;
Branchiopoda
Tags
IRIS
•
Chromium VI
Considered
Excluded
Other Not Pertinent
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