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  • Aquaculture-Fisheries Interactions

    Creator:
    Mikkelsen, Eirik
    Abstract:
    Assuming externalities from aquaculture to fisheries, we use a Verhulst-Schaefer model of fish population-dynamics and production, coupled with an aquaculture production model, to investigate effects on open-access and rent-maximising fisheries. Externalities are modelled by letting carrying capacity, intrinsic growth rate or catchability coefficient in the fishery depend on aquaculture production....
    Resource Type:
    Research Paper
    Full Text:
    1 AQUACULTURE-FISHERIES INTERACTIONS Eirik Mikkelsen, Dept of Economics / MaReMa (Centre for

  • Aquaculture in the Coastal Zone: Pressures, Interactions and Externalities

    Creator:
    Whitmarsh, David and Palmieri, Maria Giovanna
    Abstract:
    Aquaculture worldwide has grown rapidly, and while this has brought socio-economic benefits to particular regions there is persistent concern over its environmental impact and sustainability. Within Europe there are quite marked regional variations in the intensity of marine aquaculture, and the fact that this occurs in areas where there is...
    Resource Type:
    Research Paper
    Full Text:
    : WeA3 - Environment Title: Aquaculture in the coastal zone: pressures, interactions and

  • Environmental Tradeoffs Between Aquaculture and Capture Fisheries

    Creator:
    Wada, Nikolas, Delgado, Christopher, and Ahmed, Mahfuzuddin
    Abstract:
    The incorporation of fisheries commodities into the International Food Policy Research Institute’s (IFPRI) International Model for Policy Analysis of Agricultural Commodities and Trade (IMPACT) model suggests that demand for fisheries products will rise faster than supply over the next two decades, and that fishery commodity prices will rise relative to...
    Resource Type:
    Research Paper
    Full Text:
    stocks, barring technical change. Keywords: Aquaculture, fisheries, environment, projections to 2020

  • Involving the users remotely : an exploratory study using asynchronous usability testing

    Creator:
    Filar Williams, Beth and Valla, Sara
    Abstract:
    Open Educational Resources (OER) are increasingly used in the higher education landscape as a solution for a variety of copyright, publishing and cost-prohibiting issues. While OERs are becoming more common, reports of usability tests that evaluate how well learners can use them to accomplish their learning tasks have lagged behind....
    Resource Type:
    Article
    Full Text:
    exploratory study using asynchronous usability testing. Interaction Design and Architecture(s) Journal - IxD

  • Genotype x environment interactions in sheep

    Creator:
    Corum, Kathleen Steele
    Abstract:
    The 865 ewe production records taken from three lamb crops, were analyzed to study breed effects, heterosis, environmental effects and interactions between them, and breed and heterosis x environment interaction effects on ewe production traits. In each of two environments, approximately 144 ewes were mated in a three breed reciprocal...
    Resource Type:
    Masters Thesis
    Full Text:
    Genotype X Environment Interactions in Sheep AN ABSTRACT

  • Genotype-environment interaction and phenotypic stability of selected winter wheats (Triticum aestivium L. em Thell)

    Creator:
    Larson, Mark J., 1962-
    Abstract:
    Extensive research has been devoted to evaluating potential genotype-environment interactions. However, plant breeders are still in need of a simple way to describe how genotypes respond to different locations and years. In an environmentally diverse state like Oregon, significant genotype-environment interactions do occur The resulting lack of association between actual...
    Resource Type:
    Masters Thesis
    Full Text:
    genotype-environment interactions. 3 2. LITERATURE REVIEW 2.1: Genotype-Environment Interaction

  • Manila clam aquaculture in shrimp-infested mudflats

    Creator:
    Smith, Matt D.
    Resource Type:
    Masters Thesis
    Full Text:
    Manila clam aquaculture in shrimp-infested mudflats AN

  • Considerations on the policy environment for aquaculture in Vietnam

    Creator:
    Le, Xuan Sinh
    Abstract:
    The fishery sector, including capture, aquaculture, processing and suportive services, plays an important role to the whole economy of Vietnam. Total aquatic production of the country increased about 3 times after 15 years, from 1.02 million tones in 1990 to 3.43 million tones in 2005. The growth of aquaculture production...
    Resource Type:
    Other
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    policy environment for aquaculture in Vietnam Author(s): Le Xuan Sinh Abstract: The

  • Modeling of Interaction between Aquaculture and Capture Fisheries

    Creator:
    Regnier, Esther and Schubert, Kathline
    Abstract:
    To keep pace with growing demand, wild fisheries are subject to high pressure. An increasing trend in the percentage of overexploited, depleted and recovering stocks is observed since the mid-1970s. In contrast, the aquaculture sector has been the fastest growing food industry since 1970. It has become a substantial source...
    Resource Type:
    Other
    Full Text:
    of Interaction between Aquaculture and Capture Fisheries Esther Regnier*, Kathline Schubert

  • Marine Protected Areas: A Case Study in Northerneastern Iloilo, Philippines

    Creator:
    Fernandez, Cheryl Joy
    Abstract:
    Marine Protected Areas (MPAs) can be considered as one of powerful conservation tools of fishery resource management in the literature. However, due to continuing environmental awareness and mismanagement, the Philippine government has decentralized the power of legislation and management of its MPAs since the early 2000. This encouraged participation of...
    Resource Type:
    Research Paper
    Full Text:
    the interaction between the civil society and market forces of institutional arrangements in