Search Constraints

Start Over
Filtering by: Subject Groundfish fisheries -- Bycatches Remove constraint Subject: Groundfish fisheries -- Bycatches Language English [eng] Remove constraint Language: English [eng]

Search Results

  • Evaluating the Efficacy of Predicting Bycatch Mortality Using Reflex Impairment through an Assessment of Crab Discards

    Creator:
    Yochum, Noëlle
    Abstract:
    All animals that interact with fishing gear are not necessarily captured, and all animals that are captured are not necessarily retained. Fishing practices and gear configuration, management regulations, and markets dictate which animals ultimately are retained or discarded. The impact of a fishery and the efficacy of management regulations can...
    Resource Type:
    Dissertation
    Full Text:
    probability for Tanner crab (Chionoecetes bairdi) discarded from the groundfish bottom trawl fishery in the

  • Halibut bycatch management implications for Area 2A and evaluation of an informal video

    Creator:
    Fruh, Erica
    Abstract:
    Concern over the incidental catch of non-targeted species in commercial and recreational fisheries has greatly increased. Public attention, negative publicity, controversies between differing fisheries and gear groups and the reauthorization of the Magnuson-Stevens Fishery Conservation and Management Act have led to an increased awareness of the issue. The Pacific halibut...
    Resource Type:
    Capstone Project
    Full Text:
    . (from Williams et al., 1998) Fishery 1987 1992 1995 Groundfish bottom trawl Rockfish 41,255 53,562

  • An Economic Approach to Optimizing The Level of Observer Coverage

    Creator:
    Kvamsdal, Sturla and Stohs, Stephen
    Abstract:
    The US Magnuson-Stevens Act authorizes the use of onboard observers to monitor commercial fisheries catch and bycatch (PFMC 2003). A question of concern in implementing an observer program is that of the appropriate level of observer coverage. Current practice varies by fishery; for example, the California-Oregon drift gillnet fishery for...
    Resource Type:
    Other
    Full Text:
    observer program is that of the appropriate level of observer coverage. Current practice varies by fishery

  • Bio-Economic Modelling of the Red King Crab Invasion in the Barents Sea

    Creator:
    Falk-Petersen, Jannike and Armstrong, Claire
    Abstract:
    The red king crab (Paralithodes camtschaticus) is an alien invasive species in the Barents Sea representing a value as well as a potential pest. A bio-economic model is applied analysing the costs that traditional fisheries incur as a result of the king crab invasion, as well as the income from...
    Resource Type:
    Other
    Full Text:
    suggests that the king crab stock should be reduced in order to optimize the profit of the total fishery

  • Pacific Coast Groundfish Fishery Assessment and Management: Incorporating Nearshore Surveys into the Fishery Management Framework

    Creator:
    Haven, Katlyn M. M.
    Abstract:
    The Pacific coast groundfish fishery is a diverse, important and lucrative commercial and recreational fishery. Part of this fishery’s monitoring process includes regular fishery-independent surveys for stock assessment. Although these fishery-independent surveys are cost-effective, they are susceptible to scientific uncertainty, and they do not currently sample in nearshore (water depth...
    Resource Type:
    Masters Thesis
    Full Text:
    22, 2019. Title: Pacific Coast Groundfish Fishery Assessment and Management: Incorporating

  • Economic Efficiency and Sector Allocations in the New England Groundfish Fishery: A Comparison of Sector and Non-Sector Vessel Performance

    Creator:
    Gilbert, Ben
    Abstract:
    The case for assigning private property rights in fisheries has been thoroughly studied but has lead to a new debate over whether rights should be allocated to groups or individuals. The New England groundfish fishery provides a rich context in which to study this question. Beginning in 2004, several dozen...
    Resource Type:
    Other
    Full Text:
    Sector Allocations in the New England Groundfish Fishery: A Comparison of Sector and Non-Sector Vessel

  • A Point System for Managing Multispecies Fisheries

    Creator:
    Anderson, Christopher
    Abstract:
    An industry group has proposed a novel mechanism for management of the multispecies groundfish fishery off the northeastern United States. Under this mechanism, individual harvesters would be allocated a budget of points, to be expended landing fish. A regulatory body will set different prices, denominated in points, for landing each...
    Resource Type:
    Other
    Full Text:
    proposed a novel mechanism for management of the multispecies groundfish fishery off the northeastern

  • The Effect of Days at Sea Limits on Technical Efficiency

    Creator:
    Georgianna, Daniel, Kirkley, James, and Thunberg, Eric
    Abstract:
    Outputs and inputs during 1994-2006 in the USA Northeast Multispecies (groundfish) fishery—including days fished for a group of 47 otter trawl vessels fishing out of New Bedford, Massachusetts, USA—were analyzed to test the hypothesis that restricting the annual days-at-sea (DAS) of individual fishing vessels increased Technical Efficiency (TE). The results...
    Resource Type:
    Research Paper
    Full Text:
    ABSTRACT Outputs and inputs during 1994-2006 in the USA Northeast Multispecies (groundfish) fishery

  • Bio-Economic Evaluation of Implementing Selective Gears

    Creator:
    Vestergaard, Niels, Grønbæk Kronbak, Lone, Nielsen, Rasmus, and Jørgensen, Ole
    Abstract:
    The lack of selectivity in many fisheries may lead to discards and bycatch. Discards of under-sized or non-commercial species/individuals represent damage to the eco-system, an additional source of overfishing and a waste of resources. Bycatch may increase fishing pressure on species targeted by other fishermen. The purpose of the paper...
    Resource Type:
    Other
    Full Text:
    for implementing more selective gears in the Danish mixed nephops fishery in Kattegat/Skagerrak. The

  • Fleet coordination of catch under share-based management in the Central Gulf of Alaska groundfish fishery

    Creator:
    Fina, Mark
    Abstract:
    This paper examines the effects of a share-based management program in the Central Gulf of Alaska rockfish fishery. The program provides exclusive allocations to cooperatives of nine species, including one species for which retention is prohibited. Under the program, allocations of all species are required to fish and all catch,...
    Resource Type:
    Other
    Full Text:
    catch under share-based management in the Central Gulf of Alaska groundfish fishery Author(s