Dynamics and ecology of an Indo-Pacific conch, Conomurex persicus (Mollusca : Gastropoda) in southeastern Turkey

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2006-03-01

Author

Mutlu, Ethan
Ergev, Mehmet Betil

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Conomurex persicus, one of the tropical conchs, has been introduced to one of the subtropical regions, the northeastern Mediterranean Sea, and invaded sandy bottoms between I and 10 m deep. Population dynamics were studied from specimens collected with a standard dredge (60 x 15 cm mouth opening, 0.5 x 0.5 cm eye opening of net). Samples of C. persicus were collected monthly along the 5 and 10 m depth contours off Erdemli, Mersin, Turkey, in February and May 2000. Intra-annual density depended on salinity levels, while inter-annual density was correlated with bottom water temperature. Specimens underwent spring emergences and winter burial and sheltering (disappearance). Emergence took place in March when temperatures rose and the disappearance occurred in October-November when temperatures dropped. Adults live at 10 m, juveniles are recruited at a 5 m depth. Recruitment began in April and continued for the next 6 months. In contrast to shell width or shell lip thickness, shell length was not a convenient index for estimation of growth parameters. Annual production and mortality were calculated to be 7.86 g m(-2) and 3.80 g m(-2), respectively, in April-November. Rev. Biol. Trop. 54(1): 117-129. Epub 2006 Mar 31.

Subject Keywords

Conch, Distribution, Ecology, Population dynamics, Mediterranean Sea

URI

https://hdl.handle.net/11511/65110

Journal

REVISTA DE BIOLOGIA TROPICAL

DOI

https://doi.org/10.15517/rbt.v54i1.13980

Collections

Graduate School of Marine Sciences, Article

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Citation Formats

E. Mutlu and M. B. Ergev, “Dynamics and ecology of an Indo-Pacific conch, Conomurex persicus (Mollusca : Gastropoda) in southeastern Turkey,” REVISTA DE BIOLOGIA TROPICAL, pp. 117–129, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65110.