Effects of Desalination and the Detergent Sodium Dodecylsulphate on the Early Development of the Sand Dollar Scaphechinus mirabilis

Effects of Desalination and the Detergent Sodium Dodecylsulphate on the Early Development of the... We studied the effects of reduced water salinity on early ontogenesis in the sea urchin Scapechinus mirabilis. It is shown that the lower limit of salinity tolerance for the embryos and larvae is the salinity of 28‰. Under the mutual effects of desalination and sodium dodecylsulphate (SDS), an addition of 0.1 mg/l of the detergent to water with a salinity of 28‰ caused disturbances in the development of the larvae, starting from the stage of blastula. Desalination of the water down to 22‰ with the presence of SDS exerts significant effects already at the stage of fertilization. The mass death of embryos (73%) was observed at the stage of the first cleavage. The increase in the concentration of SDS up to 1 mg/l in water with a salinity of 28 to 22‰ caused an increase in the percentage of abnormal embryos and larvae from 40 up to 100%. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Marine Biology Springer Journals

Effects of Desalination and the Detergent Sodium Dodecylsulphate on the Early Development of the Sand Dollar Scaphechinus mirabilis

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2004 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Freshwater & Marine Ecology
ISSN
1063-0740
eISSN
1608-3377
D.O.I.
10.1023/B:RUMB.0000033952.90281.7a
Publisher site
See Article on Publisher Site

Abstract

We studied the effects of reduced water salinity on early ontogenesis in the sea urchin Scapechinus mirabilis. It is shown that the lower limit of salinity tolerance for the embryos and larvae is the salinity of 28‰. Under the mutual effects of desalination and sodium dodecylsulphate (SDS), an addition of 0.1 mg/l of the detergent to water with a salinity of 28‰ caused disturbances in the development of the larvae, starting from the stage of blastula. Desalination of the water down to 22‰ with the presence of SDS exerts significant effects already at the stage of fertilization. The mass death of embryos (73%) was observed at the stage of the first cleavage. The increase in the concentration of SDS up to 1 mg/l in water with a salinity of 28 to 22‰ caused an increase in the percentage of abnormal embryos and larvae from 40 up to 100%.

Journal

Russian Journal of Marine BiologySpringer Journals

Published: Oct 18, 2004

References

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