Abstract
The aim of this study was to compare the growth of juvenile Pacific oysters (mean weight 2.22 g; mean length 26.8 mm) reared with the suspended technique using three different types of trays fixed to long lines at a mussel farm located in the middle Adriatic Sea. Growth, mortality rate and quality traits of oysters cultured in a new type of tray (EXP) were compared to those of specimens reared in conventional trays (CON) and in “poches” (POC). Culture density was fixed at 0.03 oysters cm−2 in all the tray types. After 11 months of growth, oysters reared in all the tray types reached marketable size, weighing between 94.08 and 110 g without significant differences. Length (98.8–103.3 mm), width (61.1–70.5 mm) and height (31.6–34.1 mm) did not show significant variations. The condition index showed differences among EXP (93.17%) compared to CON (81%) and POC oysters (72.87%), and significant differences were found between those reared at the surface and the bottom, regardless of tray type. Concerning mortality, the EXP group (7.5%) recorded significantly smaller losses than CON (18.4%) trays and POC (31.6%).
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Aminot A, Chaussepied M (1983) Manuel des analyses chimiques en milieu marin. Centre national pour l’exploitation des oceans. CENEXO, Paris
APHA (1995) Standard methods for the examination of water and wastewater analysis. APHA methods, Washington DC
Boudry P, Collet B, McCombie H, Ernande B, Morand B, Heurtebise S, Gerard A (2003) Individual growth variation and its relationship with survival in juvenile Pacific oysters, Crassostrea gigas (Thunberg). Aquac Int 11:429–448
Brown JR (1988) Multivariate analyses of the role of environmental factors in seasonal and site-related growth variation in the Pacific oyster Crassostrea gigas. Mar Ecol 45:225–236
Chavez-Villalba J, Villelas-Avila R, Caceres-Martinez C (2007) Reproduction, condition and mortality of the Pacific oyster Crassostrea gigas (Thunberg) in Sonora, Mexico. Aquac Res 38:268–278
Dridi S, Romdhane MS, Elcafsi M (2007) Seasonal variation in weight and biochemical composition of the Pacific oyster, Crassostrea gigas in relation to the gametogenic cycle and environmental conditions of the Bizert lagoon, Tunisia. Aquaculture 263:238–248
Ferreira JG, Hawkins AJS, Bricker SB (2007) Management of productivity, environmental effects and profitability of shellfish aquaculture—the Farm Aquaculture Resource Management (FARM) model. Aquaculture 264:160–174
Gosling E (2003) Bivalve molluscs biology, ecology and culture. Blackwell Science, Oxford
Hammer J (1994) Strategies for mussel (Mytilus edulis) farming in Sweden. Aquac Eur 19:6–15
Korringa P (1976) Farming the cupped oyster of the genus Crassostrea. Developments in Aquaculture and Fisheries Science, vol 2. Elsevier, Amsterdam, pp 3–32
Langdon C, Evans F, Jacobson D, Blouin M (2003) Yields of cultured Pacific oysters Crassostrea gigas Thunberg improved after one generation of selection. Aquaculture 220:227–244
Lekang OI, Stevik TK, Bomo AM (2003) Evaluation of different combined collectors used in longlines for blue mussel farming. Aquac Eng 27:89–104
Maffei M, Piva P, Prioli G (1996) Allevamento sperimentale di Crassostrea gigas (Thunberg, 1793) in mare aperto su filari flottanti semi-sommersi. Biol Mar Medit 3:252–255
Mattei N, Pellizzato M (1997) Mollusk fisheries and aquaculture in Italy. NOAA Tech Rep NMFS 129:201–216
Matthiessen GC (2001) Oyster culture. Fishing News Books, Blackwell Science, Ltd, London
Ngo TTT, Kang S, Kang D, Sorgeloos P, Choi K (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
O’Sullivan G (2007) Oyster Market Report. Globefish Market Reports
Paynter KT, Dimichele L (1990) Growth of tray-cultured oysters (Crassostrea virginica Gmelin) in Chesapeake Bay. Aquaculture 87:289–297
Pillay TVR (1993) Oyster and mussels. In: Pillay TVR (ed) Aquaculture principles and practices. Fishing News Books, Cambridge
Robert R, Trut G, Borel M, Maurer D (1993) Growth, fatness and gross biochemical composition of the Japanese oyster, Crassostrea gigas, in Stanway cylinders in the Bay of Arcachon, France. Aquaculture 110:249–261
Roncarati A, Mordenti O, Benedetti S, Melotti P (1998) Growth performance of diploid and triploid oysters (Crassostrea gigas Thunberg, 1793) reared in the middle Adriatic sea. In: Proc. XXXIII International Symposium on New Species for Mediterranean Aquaculture. Alghero, April 22–24 1998
SAS (1989) SAS/STAT Guide, NC, USA
Soletchnik P, Huvet A, Le Moine O, Razet D, Geairon P, Faury N, Goulletquer P, Boudry P (2002) A comparative field study of growth, survival and reproduction of Crassostrea gigas, C. angulata and their hybrids. Aquat. Living Resour. 15:243–250
Spencer BE, Edwards DB, Millican PF (1992) Growing hatchery-reared Pacific oysters (Crassostrea gigas Thunberg) to marketable size in trays–observations on costed small-scale culture methods and rough-handling trials. Aquaculture 106:261–274
Turolla E (2006) Allevamento in sospensione dell’ostrica concava su sistemi long-line al largo di Goro (Fe). Il Pesce 3:6–12
Walne PR, Mann R (1975) Growth and biochemical composition in Ostrea edulis and Crassostrea gigas. In: Proc. 9th Europ. Mar. Biol. Symp
Acknowledgments
This research was partially supported by Marche Region, S.F.O.P Project 2000/2006N.06MI050505. We would like to thank Arch. Renzo Pellei and co-workers of Cooperativa Mitilpesca (San Benedetto del Tronto, Ascoli Piceno) for their efficient assistance during the samplings on the boat.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Roncarati, A., Felici, A., Dees, A. et al. Trials on Pacific oyster (Crassostrea gigas Thunberg) rearing in the middle Adriatic Sea by means of different trays. Aquacult Int 18, 35–43 (2010). https://doi.org/10.1007/s10499-009-9267-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10499-009-9267-1