Record of imposex in Cronia konkanensis (Gastropoda, Muricidae) from Indian waters

Vishwa Kiran, Y. ; Anil, A. C. (1999) Record of imposex in Cronia konkanensis (Gastropoda, Muricidae) from Indian waters Marine Environmental Research, 48 (2). pp. 123-130. ISSN 0141-1136

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This study for the first time records the phenomenon of imposex 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±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.

Item Type:Article
Source:Copyright of this article belongs to Elsevier.
Keywords:Imposex; Cronia konkanensis; TBT Influence; Environmental Impact; Ecosystem Disturbance
ID Code:100087
Deposited On:27 Nov 2016 13:11
Last Modified:27 Nov 2016 13:11

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