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1 April 2008 Fertilization and Embryonic Development in the Basket Cockle, Clinocardium nuttallii
W. Liu, A. O. Alabi, C. M. Pearce
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Abstract

Sperm motility, fertilization, and embryonic development were investigated in the hermaphroditic basket cockle, Clinocardium nuttallii. Motility of the sperm was more prolonged over a 2-h storage period at 4°C than at 19°C. The sperm-to-egg ratio resulting in the highest fertilization rate was 10,000:1, or an equivalent final sperm concentration of 6 × 105 cells mL−1, using a density of 60 eggs mL−1. However, at least some degree of self-fertilization appeared to be unavoidable during the release of the eggs from the broodstock. The biological zero point, below which embryonic development ceased, was estimated to be 2.8°C to 2.9°C for C. nuttallii.

W. Liu, A. O. Alabi, and C. M. Pearce "Fertilization and Embryonic Development in the Basket Cockle, Clinocardium nuttallii," Journal of Shellfish Research 27(2), 393-397, (1 April 2008). https://doi.org/10.2983/0730-8000(2008)27[393:FAEDIT]2.0.CO;2
Published: 1 April 2008
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