Reproductive effects of heavy metals on the rough periwinkle <i style="">Littorina saxatilis </i>(Mollusca: Prosobranchia)
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Title |
Reproductive effects of heavy metals on the rough periwinkle Littorina saxatilis (Mollusca: Prosobranchia)
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Creator |
Daka, Erema R.
Hawkins, S. J. |
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Subject |
Littorina saxatilis
Isle of Man heavy metals fecundity size at birth embryo abnormality |
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Description |
218-224
The effects of chronic mine-related heavy metal contamination on reproduction of Littorina saxatilis from sites around the Isle of Man were assessed. Size at birth of young, reproductive output (i.e. number of embryos in brood pouch) and frequencies of abnormal embryos in the brood pouch were examined in animals from five sites. Laxey estuary was the most contaminated compared to other sites with less contamination (Peel) and relatively uncontaminated control sites (Castletown, Ramsey estuaries and the open coast near Derbyhaven). The size at birth of young ranged from 0.365-0.876 mm and the lowest mean size at birth (0.517 + 0.048 mm) was found in the animals from Laxey estuary. Those from Derbyhaven had the highest mean size at birth (0.632 + 0.063 mm). ANOVA showed a significant difference in mean size at birth of young, between individuals from the five sites (p |
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Date |
2009-05-26T13:05:41Z
2009-05-26T13:05:41Z 2002-09 |
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Type |
Article
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Identifier |
0379-5136
http://hdl.handle.net/123456789/4341 |
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Language |
en_US
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Publisher |
CSIR
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Source |
IJMS Vol.31(3) [September 2002]
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