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ECASA Steering Committee WP 2 Progress

This document outlines a comprehensive list of 34 indicators relevant to assessing the environmental impact of aquaculture, focusing on parameters such as water quality, sediment health, and socio-economic factors. Key indicators include minimum oxygen levels, chlorophyll measurements, and eutrophication assessment. It emphasizes the need for improved spatial considerations and provides recommendations for selecting suitable indicators and models. Additionally, an annotated list with application references and specific formulae is included. Future tasks involve reducing overlapping indicators and enhancing ecosystem approach indicators.

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ECASA Steering Committee WP 2 Progress

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  1. ECASA Steering CommitteeWP 2 Progress Santiago de Compostela 18th june 2005

  2. 1- List of indicatorsfrom Ecasa members • Aquaculture use of shoreline • Minimum Oxygen • Secchi measurements • WQ in farms • Fall of OM and macrofauna • MU Fatty acid in the sediment • Assets eutrophication assessment

  3. Nutrients concentration • Phytoplankton and chlorophyll a • Chlorophyll a measurements • AMBI • Sulfate and ammonia Gradient • Trophic groups, macrofauna • Macrobenthic BFI • TOC • Nitrifiers • Sedimentation flux

  4. DNA Damage indicators • MtDNA • EROD • Water availability • validated distance • Total phosphorus in sediment • Redox • Macrofauna • Macrofauna univariate

  5. Output • Productivity • Employment • Profit • Damage costs • Multipliers • Producer prices • Consumers prices • See separate document for an extensive list

  6. 2- 34 indicators • macrofauna well considered • sediment • pelagic: chlorophyll mainly • other compartments are not proposed • spatial aspects are poorly considered • Socio economics are well addressed

  7. 3-Improvements • Data needed for indicator computation • References • Layman ’s lenguage explanations on the meaning are required • « indicator manual » for the toolbox • Considerations on assessment for use by WP4 are to be improved

  8. Interactions with other WP • How to evaluate interactions between mariculture and environments from indicators and models? • To assess indicators and models is a common task. We need to organize it • Selecting indicators and models toolbox from operational view. What need to be tested?

  9. Further Tasks for WP 2 • Reduce the number of overlapping indicators • Ecosystem approach indicators • Bibliography • WP Plan

  10. Deliverables / Milestones • Report on the results of meeting on identifying and quantifying the indicators of the impact of aquaculture on environment D5 • annotated list of indicators, including specific formulae, field of application, and references. D7 • Report on the relevance of indicators to quantify the impacts of aquaculture on ecosystems. D10

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