Dietary equivalence analysis: Quantifying the loss of food resource to marine predators from the entrapment of fish in power station cooling water systems
| Autor: | Hannah Young, Anastasia Charalampopoulou |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
education.field_of_study
Ecology Power station business.industry Geography Planning and Development Environmental resource management Population 0211 other engineering and technologies 02 engineering and technology 010501 environmental sciences Management Monitoring Policy and Law 01 natural sciences Predation Habitat Environmental science Environmental impact assessment 021108 energy Food resource business education Equivalence (measure theory) 0105 earth and related environmental sciences Trophic level |
| Zdroj: | Environmental Impact Assessment Review. 77:154-161 |
| ISSN: | 0195-9255 |
| DOI: | 10.1016/j.eiar.2019.02.005 |
| Popis: | As part of the Environmental Impact Assessment and Habitats Regulations Assessment process, developers are required to assess the indirect effects of fish entrapment however, presently there is little guidance to support quantitative assessments of food resource losses to higher trophic levels. To address this gap, a detailed and quantitative tool termed Dietary Equivalence Analysis is presented in this paper. Dietary Equivalence Analysis combines bioenergetic modelling with dietary and demographic information to express entrapment predictions in terms of the number of marine predators, or the proportion of a population, that would be sustained by the biomass of fish prey had it not been entrapped. The application of this tool is demonstrated by way of a worked example and includes a sensitivity analysis using Monte Carlo simulation to determine the influence of input parameter uncertainty on dietary equivalence estimates. It is shown that the Dietary Equivalence Analysis framework can be used to develop project- and regional-specific quantitative assessments for a number of marine predators. This is considered to provide competent authorities with a new and more realistic perspective from which the magnitude of predicted fish entrapment effects can be viewed and assessed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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