Search

Search Results

• 1. [Article] Evolving Bycatch Risk in the Pacific Groundfish Trawl IFQ

  Catches of several potential choke species in the Pacific groundfish IFQ are highly uncertain and tend to be concentrated while quota is broadly distributed. An analysis prior to implementation of the ...

  Citation × Citation Citation Abstract Copy Title: Evolving Bycatch Risk in the Pacific Groundfish Trawl IFQ Author: Holland, Dan Catches of several potential choke species in the Pacific groundfish IFQ are highly uncertain and tend to be concentrated while quota is broadly distributed. An analysis prior to implementation of the IFQ suggested substantial risk of individual vessels accidentally exceeding quota allocations for several rockfish species and Pacific halibut. Many fishermen lacked confidence that they would be able to acquire quota on the market to cover incidental catch and consequently joined risk pools to mitigate this risk. I update the analysis of bycatch risk using tow level catch data since implementation of the IFQ. The analysis indicates that expected catch rates of most choke species have declined suggesting more effective bycatch avoidance behavior. However, there remains a significant risk that vessels’ catch of some choke species can be several times median quota allocations, in part because many vessels have increased catch and effort by leasing quota pounds, but quota share ownership has remained distributed. The results underscore the importance of an efficient quota market to redistribute quota to match realized catches, but a recent analysis suggests that the quota market is not distributing quota effectively and is subject to high transactions costs.  This provides and explanation for the persistence of risk pools despite the fact that aggregate catches of overfished rockfish species and Pacific halibut have remained well below total quotas.   Title: Evolving Bycatch Risk in the Pacific Groundfish Trawl IFQ Author: Holland, Dan Catches of several potential choke species in the Pacific groundfish IFQ are highly uncertain and tend to be concentrated while quota is broadly distributed. An analysis prior to implementation of the IFQ suggested substantial risk of individual vessels accidentally exceeding quota allocations for several rockfish species and Pacific halibut. Many fishermen lacked confidence that they would be able to acquire quota on the market to cover incidental catch and consequently joined risk pools to mitigate this risk. I update the analysis of bycatch risk using tow level catch data since implementation of the IFQ. The analysis indicates that expected catch rates of most choke species have declined suggesting more effective bycatch avoidance behavior. However, there remains a significant risk that vessels’ catch of some choke species can be several times median quota allocations, in part because many vessels have increased catch and effort by leasing quota pounds, but quota share ownership has remained distributed. The results underscore the importance of an efficient quota market to redistribute quota to match realized catches, but a recent analysis suggests that the quota market is not distributing quota effectively and is subject to high transactions costs.  This provides and explanation for the persistence of risk pools despite the fact that aggregate catches of overfished rockfish species and Pacific halibut have remained well below total quotas.   Close

• 2. [Article] A Qualitative Risk Assessment of Hookah Diving as Fishing Technology in Small-Scale Fisheries

  In many small-scale fisheries around the world, hookah diving is the main fishing method and gear to catch high-value species like sea urchin, sea cucumber, queen conch and spiny lobster. Decompression ...

  Citation × Citation Citation Abstract Copy Title: A Qualitative Risk Assessment of Hookah Diving as Fishing Technology in Small-Scale Fisheries Author: Seijo, Juan Carlos, Huchim, Oswaldo In many small-scale fisheries around the world, hookah diving is the main fishing method and gear to catch high-value species like sea urchin, sea cucumber, queen conch and spiny lobster. Decompression sickness (DCS) and carbon monoxide poisoning (COP) are diseases related to hookah diving and are the cause of non-fatal and fatal injuries in small-scale fishers with the social and economic effects over households and coastal communities. A misunderstanding about diving risks still prevails among small-scale fishers. This study reports on a qualitative risk analysis method developed to obtain fishers perception, the likelihood of undesired health threatening events occurring as a result of hookah diving, and the corresponding perceptions of impacts or consequences of such accidents. These risk perceptions are contrasted with hyperbaric physicians’ perceptions and the actual diving accidents occurring in the spiny lobster (P. argus) and sea cucumber (I. badionotus) small-scale fisheries in a Yucatan northeastern coastal community. Fishers identified the DCS as a major problem in the diving activity; however, their impact value perceived was lower than the one perceived by the physicians. Fishers diving behavior exceeded the recommended standards for a safety diving practice. The method allows for identification of priority decisions relevant to the need for appropriate fishing technologies, for fishers capacity building associated with health-related precautionary measures, and increased community awareness of possible consequences of current fishing technology.  Title: A Qualitative Risk Assessment of Hookah Diving as Fishing Technology in Small-Scale Fisheries Author: Seijo, Juan Carlos, Huchim, Oswaldo In many small-scale fisheries around the world, hookah diving is the main fishing method and gear to catch high-value species like sea urchin, sea cucumber, queen conch and spiny lobster. Decompression sickness (DCS) and carbon monoxide poisoning (COP) are diseases related to hookah diving and are the cause of non-fatal and fatal injuries in small-scale fishers with the social and economic effects over households and coastal communities. A misunderstanding about diving risks still prevails among small-scale fishers. This study reports on a qualitative risk analysis method developed to obtain fishers perception, the likelihood of undesired health threatening events occurring as a result of hookah diving, and the corresponding perceptions of impacts or consequences of such accidents. These risk perceptions are contrasted with hyperbaric physicians’ perceptions and the actual diving accidents occurring in the spiny lobster (P. argus) and sea cucumber (I. badionotus) small-scale fisheries in a Yucatan northeastern coastal community. Fishers identified the DCS as a major problem in the diving activity; however, their impact value perceived was lower than the one perceived by the physicians. Fishers diving behavior exceeded the recommended standards for a safety diving practice. The method allows for identification of priority decisions relevant to the need for appropriate fishing technologies, for fishers capacity building associated with health-related precautionary measures, and increased community awareness of possible consequences of current fishing technology.  Close

• 3. [Article] Explaining Heterogeneity in Responses to Seafood Information Campaigns

  Suggested Bibliographic Reference: NAAFE Forum 2017 Proceedings, March 22-24, 2017. Compiled by Ann L. Shriver with assistance from Stefani Evers. North American Association of Fisheries Economists (NAAFE), ...

  Citation × Citation Citation Abstract Copy Title: Explaining Heterogeneity in Responses to Seafood Information Campaigns Author: Weir, Michael, Uchida, Hirotsugu Suggested Bibliographic Reference: NAAFE Forum 2017 Proceedings, March 22-24, 2017. Compiled by Ann L. Shriver with assistance from Stefani Evers. North American Association of Fisheries Economists (NAAFE), Corvallis, 2017. Title: Explaining Heterogeneity in Responses to Seafood Information Campaigns Author: Weir, Michael, Uchida, Hirotsugu Suggested Bibliographic Reference: NAAFE Forum 2017 Proceedings, March 22-24, 2017. Compiled by Ann L. Shriver with assistance from Stefani Evers. North American Association of Fisheries Economists (NAAFE), Corvallis, 2017. Close