Publication: Acute toxicity of anionic surfactants sodium dodecyl sulphate (SDS) and linear alkylbenzene sulphonate (LAS) on the fertilizing
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Date
2001
Authors
Rosety, M.A. ; Ordóñez Muñoz, F.J. ; Rosety-Rodriguez, M. ; Rosety, J.M. ; Rosety, I. ; Carrasco, C. ; Ribelles, A.
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Publisher
Murcia : F. Hernández
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DOI
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info:eu-repo/semantics/article
Description
Abstract
In the present work we have evaluated and
compared the acute toxicity of two anionic surfactants,
Sodium Dodecyl Sulphate (SDS) and Linear
Alkylbenzene Sulphonate (LAS) on the fertilizing
capability of gilthead Sparus aurata L. sperm. The
criterion used to judge exposure effectiveness was
fertilization success.
Spawned eggs and sperms were collected from adult
giltheads. Sperms were dosed separately with different
concentrations of SDS and LAS for 60 minutes. After
this period, sperms and eggs were combined for 20
minutes during which fertilization took place. Finally,
the number of fertilized eggs were counted and recorded
to estimate the percentage of fertilization.
Exposure to SDS and LAS concentrations of 0.3,
0.6, 1.5, 3 and 6 mg/L for 60 minutes caused a
significant inhibitory effect on fertilization success in
gilthead Sparus aurata L.. In addition, the EC50 value
for gilthead fertilization after sperm exposure was found
to be 2.8 mg/L and in the case of LAS it was of 2.6
The comparison of the results from SDS and LAS
shows that the latter has a stronger negative effect on
sperm viability than SDS.
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