Author: J. David PophamPublisher:
ISBN:
Category : Oyster culture
Languages : en
Pages : 30
Book Description
Size and Biochemical Composition of the Pacific Oyster (Crassostrea Gigas) Cultured on Sticks Or on the Bottom in Ladysmith Harbour
Author: J. David PophamPublisher:
ISBN:
Category : Oyster culture
Languages : en
Pages : 30
Book Description
Biochemical composition, nutrition attributes and mortality of the pacific oyster, crassostrea gigas (Thunberg) in Walvis bay
Author: Nevermind Marvin TeofilusPublisher:
ISBN:
Category : Oyster culture
Languages : en
Pages : 68
Book Description
Growth and Post-harvest Quality of Selected Pacific Oysters (Crassostrea Gigas) Cultured in Kachemak Bay, Alaska, and Puget Sound, Washington, in October of 2009 and June of 2010
Author: Stuart Rendell ThomasPublisher:
ISBN:
Category : Pacific oyster
Languages : en
Pages : 232
Book Description
The primary objective of this project was to evaluate the growth, biochemical and fatty acid composition, physical and shell characteristics, and basic reproductive development of families of Pacific oysters (Crassostrea gigas) from the USDA-funded Molluscan Broodstock Program (MBP) planted in suspended culture in Kachemak Bay (KB), Alaska, and at an intertidal site in Thorndyke Bay (TB), Puget Sound, Washington. The MBP selects oysters to improve yields, growth, and survival, but little is known about the effects of selective breeding on other biological characteristics of selected oysters. Shell and meat characteristics of oysters from each of the seven highest-yielding MBP families were compared with those from non-selected control families at each site, which were sampled in October of 2009 and in June of 2010. Biometric and growth data, proximate compositions, fatty acid compositions, and basic degree of reproductive development were measured and compared by family, site, and sampling time. Selection improved yield, growth, and survival in MBP Cohort 20 oysters over three years of growout at KB. Colder water temperatures at KB relative to TB inhibited reproductive development, altering the biochemical composition of oysters within sites and between sampling times. Oysters grown at KB were slower growing and smaller when compared to TB, but higher in glycogen, Omega-3, and Omega-6 fatty acids (particularly docosahexaenoic acid: 22:6 Omega 3). Different latitudes and culture types were contributing factors for observed differences in growth, physiology, and composition, resulting in characteristically unique oysters from either site.
Biochemical Changes in the Pacific Oyster, Crassostrea Gigas (Thumberg, 17951, During Larval Develoment and Metamorphosis
Author: Bruce Robert BartlettPublisher:
ISBN:
Category :
Languages : en
Pages : 63
Book Description
Intensive Culture of the Pacific Oyster, Crassostrea Gigas (Thunberg), in Heated Effluents
Author: Robert E. MaloufPublisher:
ISBN:
Category : Crassostrea gigas
Languages : en
Pages : 48
Book Description
Growth, Fatness and Gross Biochemical Composition of the Japanese Oyster Crassostrea Gigas in Stanway Cylinders in the Bay of Arcachon, France
Author: René RobertBiochemical Changes in the Pacific Oyster, Crassostrea Gigas (Thunberg, 1795), During Larval Development and Metamorphosis
Author: Bruce Robert BartlettPublisher:
ISBN:
Category : Oysters
Languages : en
Pages : 126
Book Description
The energy strategies of early development of the Pacific Oyster, Crassostrea gigas, were examined. Changes in proteins, total carbohydrates, free reducing sugars and total and neutral lipids were determined for the unfertilized egg and larval stages through 13 days post-settlement. During early larval stages neutral lipid levels decreased and provided the principle source of energy for development. Subsequently they remained unchanged throughout settlement and metamorphosis. Protein levels increased during larval stages and remained largely unchanged after settlement. Total carbohydrate levels were unchanged during larval development and through settlement and metamorphosis. Phospholipid values rose slightly during early larval stages and remained unchanged through settlement and metamorphosis. Starvation experiments confirmed the aforementioned findings that neutral lipid was an important source of energy during early larval life. Protein, however, contributed more energy than neutral lipid in late larval life. This study has shown that in C. gigas development, contrary to the European oyster Ostrea edulis, neutral lipid was not accumulated during larval feeding nor utilized during settlement and metamorphosis relative to other organic fractions.
Summer Mortality of Pacific Oyster Crassostrea Gigas
Author: Jean-François SamainPublisher:
ISBN: 9782759200559
Category : Pacific oyster
Languages : en
Pages : 400
Book Description
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