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10. Aquaculture and marketing of the Florida Bay Scallop in Crystal River, Florida

Author

Blake, Norman J., Adams, Charles, Degner, Robert, Sweat, Don, Moss, Susan D., and Sturmer, Leslie

Subjects
aquaculture, Florida Bay Scallops, marketing, Florida, Crystal River, Argopecten irradians, Biology
Abstract

The overall goal of this study was to develop a new fishery resource product through open-wateraquaculture for the west coast of Florida that would compete as a non-traditional product through marketdevelopment. Specific objectives were as follows:I. To grow a minimum of 50, 000 juvenile scallops to a minimum market size of40 mm in a cageand float system in the off-shore waters of Crystal River, Florida.2. To determine the growth rate, survival, and time to market size for the individuals in this systemand area to other similar projects like Virginia.3. To introduce local fishermen and the aquaculture students at Crystal River High School to thehatchery, nursery, and grow-out techniques.4. To determine the economic and financial characteristics of bay scallop culture in Florida andassess the sensitivity of projected costs and earnings to changes in key technical, managerial, andmarket related parameters.5. To determine the market acceptability and necessary marketing strategy for whole bay scallopproduct in Florida. (PDF has 99 pages.) Final report on Project RlLR·A·20

Published
2000

11. Bioaccumulation and histopathological effects of oil on a stony coral

Author

Department of Atmospheric and Oceanic Science, The University of Michigan, Ann Arbor, MI 48109, USA, Department of Marine Science, University of South Florida, St. Petersburg, FL 33701, USA, Environmental Research Laboratory, United States Environmental Protection Agency, Narragansett, RI 02882, USA, Peters, Esther C., Meyers, Philip A., Yevich, Paul P., Blake, Norman J., Department of Atmospheric and Oceanic Science, The University of Michigan, Ann Arbor, MI 48109, USA, Department of Marine Science, University of South Florida, St. Petersburg, FL 33701, USA, Environmental Research Laboratory, United States Environmental Protection Agency, Narragansett, RI 02882, USA, Peters, Esther C., Meyers, Philip A., Yevich, Paul P., and Blake, Norman J.

Abstract

Colonies of the shallow-water Caribbean coral Manicina areolata incorporated petroleum hydrocarbons into their tissues during exposure to water accommodated fractions of No. 2 fuel oil for three months. This contamination was not removed after depuration periods of up to two weeks. Although these corals remained alive, evidence of pathological responses was found which included impaired development of reproductive tissues, degeneration and loss of symbiotic zooxanthellae, and atrophy of mucous secretory cells and muscle bundles.

Published
2006

12. INTRA-ORGAN BIOCHEMICAL TRANSFORMATIONS ASSOCIATED WITH OOGENESIS IN THE BAY SCALLOP, ARGOPECTEN IRRADIANS CONCENTRICUS(SAY), AS INDICATED BY 14C INCORPORATION

Author

BARBER, BRUCE J. and BLAKE, NORMAN J.

Abstract

Incorporation of 14C into lipid, carbohydrate, and protein fractions of digestive gland, adductor muscle, and ovary body components of the bay scallop, Argopecten irradians concentricus(Say), varied seasonally in conjunction with oogenesis. Resting stage scallops (June-July) were characterized by net radiocarbon losses in ovary fractions. Nutrient storage during this period was indicated by relatively small radiocarbon losses in digestive gland fractions that were equaled by gains in adductor muscle carbohydrate and protein fractions. During the period of oocyte growth (August-October) 14C losses in digestive gland and adductor muscle fractions always exceeded progressive gains in the ovary. Increased carbon turnover (catabolism) of digestive gland lipid and adductor muscle carbohydrate fractions accompanied decreased turnover (anabolism) of ovary lipid, indicating the utilization of these reserves for the production of ova. After spawning (November), 14C was lost from all body component fractions, indicating a state of negative energy balance and generally poor physiological condition. These results directly reinforce the pattern of energy storage and utilization in A. irradians concentricusindicated by previous studies on growth, biochemical composition, and substrate catabolism.

Published
1985
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