Growth and survival of the scallop Nodipecten nodosus (Linnaeus, 1758), (Molusca: Pectinidae) in different cultivation structures at Praia Grande do Bonete, Ubatuba, SP, Brazil
2010
Rogerio Stojanov Bueno | Helcio Luis de Almeida Marques | Rafael Pasin Corrente Rangel Roma
Statistical projections show that aquaculture could represent 40% of the world’s annual seafood production in the next decade. The scallop Nodipecten nodosus presents high commercial value and good culture potential, but there are few studies about its culture in Brazil. This paper aims to evaluate the performance of four different culture structures (three traditional and two alternative) regarding growth, survival and simplicity of cleaning off the fouling. Growth was significantly better in the alternative bo-net structure, with 57.6mm after 301 days. Survival was 97.0% in the bo-net structure, 95.6% in the lanter-net and common lantern structures, and 69.2% in the pearl-net structure. There were also significant differences among the fresh weights of fouling attached to the different structures, the highest values being observed in the bo-net and lanter-net structures. Significant differences were not registered among the fouling dry weights. The fresh weights of fouling attached to the shells presented significant differences, with the highest values registered in scallops cultivated in the lanter-net structure. Alternative structures (bo-net and lanter-net) can be employed, because they resulted in better growth and survival of the cultivated scallops.
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