Record of imposex in Cronia konkanensis (Gastropoda, Muricidae) from Indian waters
DRS at CSIR-National Institute of Oceanography
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Title |
Record of imposex in Cronia konkanensis (Gastropoda, Muricidae) from Indian waters
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Creator |
VishwaKiran, Y.
Anil, A.C. |
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Subject |
toxicity
antifouling substances bioaccumulation animal reproductive organs males environmental impact ecosystem disturbance Cronia konkanensis |
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Description |
This study for the first time records the phenomenon of imposed in gastropods from Indian waters. The gastropods were collected from three stations located in Goa: Marmugao Harbour, Dona Paula and Arambol. Imposex was recorded in a muricid neogastropod species Cronia konkanensis (Melvill, 1893) (Fa: Muricidae) collected from Goa waters located along the west coast of India. The frequency of imposex was found to be in the range of 90-100% in the animals collected from Marmugao Harbour while this value reduced to 0-7% at Dona Paula, whereas no imposex could be recorded at Arambol. The vas deferens sequence (VDS) stages ranged from Stages 0 to 4 in which VDS index of Stages 2 and 3 were predominant in the imposex-affected population. An average VDS index of 2.7 plus or minus 1.0 with an average relative penis size (RPL) index of 67.2% was recorded in Marmugao Harbour snails. The cubed relative penis size (RPS) index was 11.72% in Stage 2 which increased to 55.81% in Stage 4 female snails collected from Marmugao Harbour
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Date |
2009-01-10T11:49:38Z
2009-01-10T11:49:38Z 1999 |
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Type |
Journal Article
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Identifier |
Marine Environmental Research, Vol.48; 123-130p.
http://drs.nio.org/drs/handle/2264/1842 |
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Language |
en
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Rights |
Copyright [1999]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
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Publisher |
Elsevier
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