Evaluation of the growth and mortality of the oysters (Crassostrea gigas, thunberg, 1795) in the sea farm in Arraial do Cabo, RJ
Keywords:
Crassostrea gigas, stocking density, growth, mortality, Arraial do CaboAbstract
This study, carried out during 7 months, evaluated the growth and mortality of oyster Crassostrea gigas cultured at long-lines in Arraial do Cabo/RJ at 3 initial stocking densities 500; 1,000 and 1,500 oysters/floor), maintained the pattern of density larger, medium and smaller throughout experiment. Lowest stocking density of all months displayed significant difference of greater growth than other densities. From June to September was the most representative phase of growth (11.4 ± 5.2 mm to 51.1 ± 11.8 mm). In October and November had low growth rate suggesting natural reduction in final stage of development. The high mortality was observed in July and October when it presented rates of 31% and 36%. The reduction in mortality as population stoking density increases was recorded only in August and September, suggesting that density was not a factor limiting in other months. Although the low upwelling events in the region this period, a satisfactory growth was reached.
References
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TAYLOR, J. J.; ROSE, R. A.; SOUTHGATE, P. C. TAYLOR, C. E. 1997 Effects of stocking density on growth and survival of early juvenile silver-lip pearl oysters, Pinctada maxima (Jameson), held in suspended nursery culture. Aquaculture. 153:41-49.
VENTURA, C. R. R. PIRES, D. O. 2002 Ciclos de Vida de Invertebrados Marinhos. In: PEREIRA, R.C. SOARES-GOMES, A. Biologia Marinha. Interciência, Rio de Janeiro, p. 49-67.
BISHOP, M. J. HOOPER, P. J. 2005 Flow, stockingdensity and treatment against Polydora spp.: Influences on nursery growth and mortality of the oysters Crassostrea virginica and C. ariakensis.Aquaculture. 246: 251-261.
COSTA, P. F. da. 1985 Ostreicultura: Biologia e Tecnologia para o Cultivo de Ostras. Cap. 6, parte B. In: Manual de Maricultura, Instituto de Pesquisas da Marinha, Projeto Cabo Frio, Rio de Janeiro, p.1-40.
DÉGREMONT, L.; EDOUARD, B.; SOLETCHNIK, P.;ROPERT, M.; HUVET, A.; MOAL, J.; SAMAIN J.F. BOUDRY, P. 2005 Relative importance of family, site, and field placement timing on survival, growth, and yield of hatchery-produced Pacific oyster spat (Crassostrea gigas). Aquaculture. 249:213-229.
FLORES-VERGARA, C.; CORDERO-ESQUIVEL, B.;CERÓN-ORTIZ, A. N. ARREDONDO-VEGA, B. O. 2004 Combined effects of temperature and diet on growth and bichemical composition of the Pacific oyster Crassostrea gigas (Thunberg) spat.
Aquaculture Research. 35: 1131-1140.
FRÉCHETTE, M.; GOULLERTQUER, P. DAIGLE, G.2003 Fluctuating asymmetry and mortality in cultured oysters (Crassostrea gigas) in MarennesOléron basin. Aquatic Living Resources 16: 339-346.
GANGNERY, A.; CHABIRAND, J. M.; LAGARDE, F.;GALL, P. L.; OHEIX, J.; BACHER, C. BUESTEL, D.2003 Growth model of Pacific oyster, Crassostrea gigas, cultured in Thau Lagoon (Méditerranée,France) Aquaculture. 215: 267-290.
HONKOOP, P. J. C. BAYNE, B. L. 2002 Stocking density and growth of the Pacific oyster (Crassostrea gigas) and the Sydney rock oyster (Saccostrea glomerata) in Port Stephens, Australia. Aquaculture.213: 171-186.
HUANG, S. C.; HSIEH, H. L. CHEN, C. P. 2006 Effects of the winter Monsoon on the growth, mortality, and metabolism of adult oysters in Kinmen Island, Taiwan. Aquaculture. 251: 256-270.
MACCACCHERO, G. B.; GUZENSKI, J. FERREIRA, J.F. 2005 Allometric growth on mangrove oyster Crassostrea rhizophorae (Guilding, 1828), cultured in Southern Brazil. Revista Ciência Agronômica, 36 (3): 400-403.
NGO, T. T. T.; KANG, S. G.; KANG, D. H.; SORGELOOS,P.; CHOI, K. S. 2006 Effect of culture depth on the proximate composition and reproduction of the Pacific oyster, Crassostrea gigas from Gosung Bay, Korea. Aquaculture, 253: 712-720.
OSTINI, S. POLI, C. R. 1990 A situação do cultivo de moluscos no Brasil. In: HERNANDEZ, R. A. Cultivo de moluscos na América Latina. Bogotá, 407p.
POLI, C. R. 2004 Cultivo de Ostras do Pacífico (Crassostrea gigas, 1852). In: POLI, C. R.; POLI, A. T. B.; ANDREATTA, E. BELTRAME, E. Aqüicultura: Experiências Brasileiras. Multitarefa Editora,Tubarão, p.251-266.
RAMOS, M. I. S.; NASCIMENTO, I. A. LOYOLA, J. LOYOLA, J.S. 1986 The comparative growth and survival of Pacific oyster (Crassostrea gigas, Thunberg, C. gigas var. Kumamoto) and mangrove oyster ( Kumamoto) and mangrove oyster (C. rhizophorae) in Todos os Santos Bay, Brazil. Ciência e Cultura, São Paulo. 38 (9): 1604-1615.
SARí€, G. MAZZOLA, A. 1997 Effects of trophic and environmental conditions on the growth of Crassostrea gigas in culture. Aquaculture. 153:81-91.
TAYLOR, J. J.; ROSE, R. A.; SOUTHGATE, P. C. TAYLOR, C. E. 1997 Effects of stocking density on growth and survival of early juvenile silver-lip pearl oysters, Pinctada maxima (Jameson), held in suspended nursery culture. Aquaculture. 153:41-49.
VENTURA, C. R. R. PIRES, D. O. 2002 Ciclos de Vida de Invertebrados Marinhos. In: PEREIRA, R.C. SOARES-GOMES, A. Biologia Marinha. Interciência, Rio de Janeiro, p. 49-67.
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2018-11-04
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