Sabtu, 05 Juni 2010

Monitoring and assessing stocks and habitats

Stock assessment and monitoring Stock assessment is the first step in the development of a sustainable fisheries policy.
Appropriate stock assessment techniques are developed, organised and applied. The resulting knowledge is invaluable in subsequent modelling and analysis forming the basis of management strategies.

fisheries and ecosystem modelling Modelling is a key tool for management under uncertainty. Models are applied to acquire a greater understanding of fish stock dynamics and behaviour over a variety of timescales.
Outputs contribute to key policy and legislative recommendations, such as stock recovery plans.
ecosystem effects of fishing Understanding the aquatic environment and the influences upon it are critical to the successful management of resources and systems. Policy makers must balance the impacts of fishing against the benefits in the short, medium and long term.
Effects of fishing on habitats and species, from plankton to predator, are assessed to determine impacts of fishing on ecosystems. Results are incorporated in management strategy proposals.
Impacts of non-fishing-related activities and influences on fish stocks are considered, from long-term effects requiring management policies, to one-off disaster recovery situations.
Assessments are included in biological and economic fisheries analyses for stakeholders.

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