Larval rearing and spat production of Marcia opima (Gmelin)

Muthiah, P and Rodrigo, Joseph Xavier and Suja, N (2002) Larval rearing and spat production of Marcia opima (Gmelin). Aquaculture, 211 (1-4). pp. 393-401.



The ‘baby clam’ Marcia opima (Gmelin) was spawned on seven occasions in the shellfish hatchery at the Tuticorin Research Centre, India. The fertilized eggs measured 47.8 μm in diameter and the straight hinged larvae attained at 20 h were 87 μm in length and 71 μm in height. Settlement occurred on day 9 at 273 μm. The percentage of settlement varied from 13.9% to 56.2%. The growth of post-set clam spat has been described by the equation of L=0.0086x1.4672, where L is the length in mm and x is the number of days. The clam seed reached a size of 11.5 mm at 4 months. The significance of this study is to standardize the techniques for hatchery production of the seeds of M. opima.

Item Type:Article
Uncontrolled Keywords:Larval rearing; spat production; Marcia opima
Molluscan Fisheries > Clam
ID Code:5779
Deposited By:Arun Surendran
Deposited On:28 Oct 2010 15:19
Last Modified:28 Oct 2010 15:19

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