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<span style="font-size:15.0pt;font-family:"Times New Roman";mso-fareast-font-family: "Times New Roman";mso-ansi-language:EN-GB;mso-fareast-language:EN-US; mso-bidi-language:AR-SA" lang="EN-GB">The effect of lead toxicity <span style="font-size:11.0pt;mso-bidi-font-size:15.0pt;font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";mso-ansi-language:EN-GB;mso-fareast-language: EN-US;mso-bidi-language:AR-SA" lang="EN-GB">on embryonic development and early larval growth of the <i>Echinometra mathaei </i>sea urchin (Persian Gulf)<span style="font-size:11.0pt;mso-bidi-font-size:15.0pt;font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";mso-ansi-language:EN-GB;mso-fareast-language: EN-US;mso-bidi-language:FA" lang="EN-GB">, morphologic and <span style="font-size:11.0pt;mso-bidi-font-size:15.0pt; font-family:"Times New Roman";mso-fareast-font-family:"Times New Roman"; mso-ansi-language:EN-GB;mso-fareast-language:EN-US;mso-bidi-language:AR-SA" lang="EN-GB">morphometric<span style="font-size:11.0pt;mso-bidi-font-size:15.0pt;font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";mso-ansi-language:EN-GB;mso-fareast-language: EN-US;mso-bidi-language:FA" lang="EN-GB"> studies</span></span></span></span></span>

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Title The effect of lead toxicity on embryonic development and early larval growth of the Echinometra mathaei sea urchin (Persian Gulf), morphologic and morphometric studies
 
Creator Ghorani, V.
Shahri, N. Mahdavi
Ghassemzadeh, F.
Mortazavi, M.S.
 
Subject Sea urchin
Lead
Development
Larvae
Morphometric
Persian Gulf
 
Description 29-34
Toxic effects of increased lead in sea water on the embryonic stages
and early larval growth of the Echinometra mathaei sea urchin is
examined in the present study. After the spawn induction and fertilization, the
toxicity test was performed in 6 lead concentrations (250, 500, 1000, 2000,
4000 and 8000
µg/L). Toxic effects of this metal were studied on
development of embryos until reached the 4-arms pluteus
larvae. It is observed that increasing the concentrations of lead, arrested
development in the early embryonic stages and led to morphologic abnormalities
in the larval growth. Morphometric studies also showed a gradual decrease in
larvae size with increasing the concentration of lead. Median effective
concentration (EC50) value calculated for lead was 2178.94 µg/L.
 
Date 2013-02-19T12:56:32Z
2013-02-19T12:56:32Z
2013-02
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/15982
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.42(1) [February 2013]