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• 1. [Article] American consumers’ eating patterns of fish and knowledge of fish rich in omega-3 fatty acids

  Research Paper

  Citation × Citation Citation Abstract Copy Title: American consumers’ eating patterns of fish and knowledge of fish rich in omega-3 fatty acids Author: Martin, Anna B., Kudo, Koei Research Paper Title: American consumers’ eating patterns of fish and knowledge of fish rich in omega-3 fatty acids Author: Martin, Anna B., Kudo, Koei Research Paper Close

• 2. [Article] The Effects of Derelict Gear on Blue Crab Production in the Chesapeake Bay

  Several factors currently threaten blue crab (Callinectes sapidus) in the Chesapeake Bay. In addition to poor water quality, degraded habitat, and shifting environmental conditions, derelict gear has recently ...

  Citation × Citation Citation Abstract Copy Title: The Effects of Derelict Gear on Blue Crab Production in the Chesapeake Bay Author: Bilkovic, Donna M., Scheld, Andrew M., Havens, Kirk J. Several factors currently threaten blue crab (Callinectes sapidus) in the Chesapeake Bay. In addition to poor water quality, degraded habitat, and shifting environmental conditions, derelict gear has recently been recognized as a significant source of mortality for this economically and culturally significant species. From 2008 through 2014, commercial watermen in Virginia were hired during their winter off season to locate, document, and remove derelict gear as part of a larger research effort to determine the biological impacts of marine debris in the Chesapeake Bay. Data on derelict gear removal generated by this research was subsequently paired with spatially resolved catch and effort data and entered into a translog production model used to estimate the economic effects of derelict gear on commercial blue crab production. Model results indicate removal significantly improved pot production and economic profits, a finding which had been previously confounded by concurrent blue crab management action. Our research builds on previous work through explicit acknowledgment of important spatial production differences and incorporation of derelict gear removal. Title: The Effects of Derelict Gear on Blue Crab Production in the Chesapeake Bay Author: Bilkovic, Donna M., Scheld, Andrew M., Havens, Kirk J. Several factors currently threaten blue crab (Callinectes sapidus) in the Chesapeake Bay. In addition to poor water quality, degraded habitat, and shifting environmental conditions, derelict gear has recently been recognized as a significant source of mortality for this economically and culturally significant species. From 2008 through 2014, commercial watermen in Virginia were hired during their winter off season to locate, document, and remove derelict gear as part of a larger research effort to determine the biological impacts of marine debris in the Chesapeake Bay. Data on derelict gear removal generated by this research was subsequently paired with spatially resolved catch and effort data and entered into a translog production model used to estimate the economic effects of derelict gear on commercial blue crab production. Model results indicate removal significantly improved pot production and economic profits, a finding which had been previously confounded by concurrent blue crab management action. Our research builds on previous work through explicit acknowledgment of important spatial production differences and incorporation of derelict gear removal. Close

• 3. [Article] The Cost of Avoiding Sea Cucumber Stock Depletion

  In 2013 a stock of sea cucumber (Isostichopus badionotus) was discovered in northern shelf of Yucatan. A survey calculated a biomass of 17,600 tons. The species has an attractive price for local fishers, ...

  Citation × Citation Citation Abstract Copy Title: The Cost of Avoiding Sea Cucumber Stock Depletion Author: Hernández-Flores, Alvaro, Cuevas-Jiménez, Alfonso, Aranda-Nah, Javier In 2013 a stock of sea cucumber (Isostichopus badionotus) was discovered in northern shelf of Yucatan. A survey calculated a biomass of 17,600 tons. The species has an attractive price for local fishers, therefore, in order to avoid the “race for sea cucumbers” and the collapse of the stock, authorities established a total quota of 1,278 tones, issued a limited number of permits and restricted the fishing season to six weeks. Because of fishers’ dynamic behavior and the installed local fishing capacity, the applied effort was higher than the authorized (750 boats per day). Regulations were not enough to avoid excess fishing and entry of non-authorized boats, driving the stock to a low level. We developed a spatial and density dependent bioeconomic model which calculates an optimum pathway to maximize the profits without putting the stock in peril. The model operates seasonally in the short-run. Because of catchability and cost depend on the sea cucumbers densities, both were modeled with asymptotic functions. In order to avoid the Allee effect, the species requires a minimum density of 0.1 individuals per square meter. Our results indicate that the maximum quota could be 5,700 tons, which is about 32% of the vulnerable biomass. This quota would produce profits of US$2,300,000. If minimum density were neglected, the system would lead the biomass to 8,400 tons, instead 11,000 tons, with extra profits of US$76,000; however, in such level the density would be 0.08 individual per square meter, reaching the Allee effect and impeding the stock recovery. Title: The Cost of Avoiding Sea Cucumber Stock Depletion Author: Hernández-Flores, Alvaro, Cuevas-Jiménez, Alfonso, Aranda-Nah, Javier In 2013 a stock of sea cucumber (Isostichopus badionotus) was discovered in northern shelf of Yucatan. A survey calculated a biomass of 17,600 tons. The species has an attractive price for local fishers, therefore, in order to avoid the “race for sea cucumbers” and the collapse of the stock, authorities established a total quota of 1,278 tones, issued a limited number of permits and restricted the fishing season to six weeks. Because of fishers’ dynamic behavior and the installed local fishing capacity, the applied effort was higher than the authorized (750 boats per day). Regulations were not enough to avoid excess fishing and entry of non-authorized boats, driving the stock to a low level. We developed a spatial and density dependent bioeconomic model which calculates an optimum pathway to maximize the profits without putting the stock in peril. The model operates seasonally in the short-run. Because of catchability and cost depend on the sea cucumbers densities, both were modeled with asymptotic functions. In order to avoid the Allee effect, the species requires a minimum density of 0.1 individuals per square meter. Our results indicate that the maximum quota could be 5,700 tons, which is about 32% of the vulnerable biomass. This quota would produce profits of US$2,300,000. If minimum density were neglected, the system would lead the biomass to 8,400 tons, instead 11,000 tons, with extra profits of US$76,000; however, in such level the density would be 0.08 individual per square meter, reaching the Allee effect and impeding the stock recovery. Close

• 4. [Article] Eco-labeled Marine Ornamentals: Expected Demand and Value from a Conjoint Survey

  Research Paper

  Citation × Citation Citation Abstract Copy Title: Eco-labeled Marine Ornamentals: Expected Demand and Value from a Conjoint Survey Author: Degner, Robert, Larkin, Sherry Research Paper Title: Eco-labeled Marine Ornamentals: Expected Demand and Value from a Conjoint Survey Author: Degner, Robert, Larkin, Sherry Research Paper Close

• 5. [Article] Environmental Tradeoffs Between Aquaculture and Capture Fisheries

  Research Paper

  Citation × Citation Citation Abstract Copy Title: Environmental Tradeoffs Between Aquaculture and Capture Fisheries Author: Ahmed, Mahfuzuddin, Wada, Nikolas, Delgado, Christopher Research Paper Title: Environmental Tradeoffs Between Aquaculture and Capture Fisheries Author: Ahmed, Mahfuzuddin, Wada, Nikolas, Delgado, Christopher Research Paper Close

• 6. [Article] Technical Efficiency Analysis of the Milkfish (Chanos chanos) Production in Taiwan - An Application of the Stochastic Frontier Production Function

  Research Paper

  Citation × Citation Citation Abstract Copy Title: Technical Efficiency Analysis of the Milkfish (Chanos chanos) Production in Taiwan - An Application of the Stochastic Frontier Production Function Author: Chiang, Fu-Sung, Sun, Chin-Hwa, Yu, Jin-Mey Research Paper Title: Technical Efficiency Analysis of the Milkfish (Chanos chanos) Production in Taiwan - An Application of the Stochastic Frontier Production Function Author: Chiang, Fu-Sung, Sun, Chin-Hwa, Yu, Jin-Mey Research Paper Close

• 7. [Article] Measuring Economic Performance in a Fishery: An Index Number Profit Decomposition

  Research Paper

  Citation × Citation Citation Abstract Copy Title: Measuring Economic Performance in a Fishery: An Index Number Profit Decomposition Author: Nhu Che, Tuong, Grafton, R. Quentin, Kompas, Tom, Fox, Kevin J. Research Paper Title: Measuring Economic Performance in a Fishery: An Index Number Profit Decomposition Author: Nhu Che, Tuong, Grafton, R. Quentin, Kompas, Tom, Fox, Kevin J. Research Paper Close

• 8. [Article] Evaluating the Accuracy of Trawl Logbook Estimates of Groundfish Discards

  Research Paper

  Citation × Citation Citation Abstract Copy Title: Evaluating the Accuracy of Trawl Logbook Estimates of Groundfish Discards Author: Sampson, David B., Lee, Yong-Woo Research Paper Title: Evaluating the Accuracy of Trawl Logbook Estimates of Groundfish Discards Author: Sampson, David B., Lee, Yong-Woo Research Paper Close

• 9. [Article] A Bioeconomic Simulation Model of a Fishery Using Area Rotation Under Uncertainty

  Research Paper

  Citation × Citation Citation Abstract Copy Title: A Bioeconomic Simulation Model of a Fishery Using Area Rotation Under Uncertainty Author: Quigley-Lemieux, Kathryn, Sylvia, Gil Research Paper Title: A Bioeconomic Simulation Model of a Fishery Using Area Rotation Under Uncertainty Author: Quigley-Lemieux, Kathryn, Sylvia, Gil Research Paper Close

• 10. [Article] Comparing Energy intensity Results for Commercial Fisheries in France

  No poster available.

  Citation × Citation Citation Abstract Copy Title: Comparing Energy intensity Results for Commercial Fisheries in France Author: Dangeard, Isabelle, Le Floc'h, Pascal, Guyader, Olivier, Daures, Fabienne No poster available. Title: Comparing Energy intensity Results for Commercial Fisheries in France Author: Dangeard, Isabelle, Le Floc'h, Pascal, Guyader, Olivier, Daures, Fabienne No poster available. Close