Beer, Andrew C., and Southgate, Paul C. (2006) Spat collection, growth and meat yield of Pinna bicolor (Gmelin) in suspended culture in northern Australia. Aquaculture, 258 (1-4). pp. 424-429.

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Abstract

Five species within the Family Pinnidae were collected on spat collectors at Pioneer Bay, Orpheus Island, north Queensland, Australia. Pinna bicolor represented > 99% of recruits. Approximately 950 P. bicolor spat recruited to collectors during 12 months of study beginning in late summer (March) with recruitment showing a distinct pulse during March/April with mean (± S.E.) recruitment of 72 ± 7 spat per collector. There was no significant difference between the intensity of recruitment at depths of 2 and 6 m (P < 0.05). P. bicolor spat grew rapidly following removal from spat collectors and had a mean hinge length (HL) of over 150 mm after 1 year in suspended culture. Gonad development was evident within 12 months and a reduced growth rate at this time may be attributable to reproductive activity. After 80 weeks, mean (± S.E.) HL was 176.5 ± 3.9 mm with a mean (± S.E.) whole wet weight of 114.3 ± 17.5 g. Tissue wet weight was 27.5 ± 0.5% of whole wet weight and the wet weight of the posterior adductor muscle was 3.5 ± 0.1% of whole wet weight and 12.8 ± 0.3% of tissue wet weight.

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