Effect of Surface Access and Oxygen Concentration on the Toxicity of Croton tiglium (Euphorbiaceae) Seed Extract to Brachydanio rerio (Cyprinidae)
1987 ◽
Vol 44
(7)
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pp. 1358-1361
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Keyword(s):
Zebrafish (Brachydanio rerio) (Cyprinidae) were exposed to a toxic extract of Croton tiglium (Euphorbiaceae) seeds (4 mg∙L−1) at 0.8, 1.1 and 8.1 mg O2∙L−1, with and without surface access. Equilibrium loss occurred more quickly at lower dissolved oxygen concentrations. At 0.8 and 1.1 mg O2∙L−1, equilibrium loss also occurred more quickly when access to the water surface was denied. Surface access is therefore an important factor in studies of the interaction between toxicity and dissolved oxygen concentration. We suggest that, by performing aquatic surface respiration, zebrafish with surface access in hypoxic water reduce their ventilation rate and hence their uptake rate of toxins.
2017 ◽
Vol 7
(5)
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pp. 592-597
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Keyword(s):
1992 ◽
Vol 26
(7-8)
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pp. 1769-1778
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2021 ◽
Vol 770
◽
pp. 145337
Keyword(s):
2008 ◽
Vol 18
(1)
◽
pp. 87-100
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2010 ◽
Vol 20
(4)
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pp. 619-628
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Keyword(s):
2005 ◽
Vol 152
(8)
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pp. G669
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Keyword(s):