期刊
LATIN AMERICAN JOURNAL OF AQUATIC RESEARCH
卷 45, 期 2, 页码 466-480出版社
UNIV CATOLICA DE VALPARAISO
DOI: 10.3856/vol45-issue2-fulltext-21
关键词
oysters; suspended cultivation; growth rate; environmental conditions; profit
资金
- Instituto Politecnico Nacional [SIP-IPN 20150088, 20150104]
- COFFA
- EDI
- Instituto Politecnico Nacional (BEIFI Grant)
- CONACYT
Diploid and triploid Crassostrea gigas oysters were cultivated at three farms (Guasave, Navolato and Ahome) in Sinaloa, Mexico, to evaluate their growth and economic performances. Growth rate and survival of oysters were compared in long-line cultivation and were mostly affected by water parameters rather than ploidy or their interaction. The highest growth rates for shell length (8.01 mm month(-1)) and body weight (9.08 g month(-1)) were obtained for the Ahome/ triploid group. Survival differed significantly from 98.6% for the Guasave/triploids to 76.7% for the Ahome/diploids. After the first production cycle, more than 80% of production costs represent the purchase of cultivation equipment and salaries contributed with around 9%. The Guasave farm produced the highest profits (US$8,053.71 diploids, US$8,182.19 triploids). Use of diploids starting the production cycle on October-November to avoid mortality and improve final profit is recommended.
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