Skip to main content
European Commission logo print header

Estimation of primary production for fisheries management

Objetivo

The PROOF (Estimation of Primary Production for Fisheries Management) project aims to produce estimates of the regional and ocean basin-scale marine primary production (PP) based on the available ocean colour and temperature data from a number of earth observation satellites already in orbit or to be launched in the near future. The spatial and temporal variability of the PP will be assessed and validated against state-of-the-art ecosystem models in order to validate the methods developed. The PP estimates will be used in a publicly available marine food web model in order to assess the marine production at various levels in the food web. The higher-level production, such as fish production, is essential for proper management of fisheries, implementation of national and EC Common Fisheries Policy, as well as a basis for agreements on international quotas and fish catch regulations. The project will develop a close relation with the European fisheries management authorities at national, EC and international level in order to assure user guidance in the project results.
objectives
The overall objectives of this project are: To provide estimates of marine primary production at regional (European waters) and ocean basin (North Atlantic ocean) scales from satellite ocean colour and temperature data. State-of-the-art algorithms will be implemented for the retrieval of chlorophyll-a concentration and primary production in open ocean (case I) and coastal (case II) waters, and validated and improved using both archived and new data obtained during the project. A 3D-coupled physical biogeochemical model will be used to assess the spatial and temporal variability of the derived primary production. To apply primary production to ecosystem modelling and guarantee an efficient dissemination and exploitation of the developed products. To disseminate into the public domain, data sets on CD-ROM, including software for integration within common food chain and fish-stock prediction models. To assess the impact of the above development in term of improved fisheries management in relation to the Common Fisheries Policy (CFP), through model simulations. Direct interactions with the user community will gauge the usefulness and efficiency of the developed products. Scientific objectives and approach1. Proof-of-Concept: A study will be conducted to test: feasibility of integrating satellite-derived primary production into Ecopath - Ecosim; and sensitivity of the model to variations of PP. A users' workshop will be organised to: introduce the project and expected deliverables; provide user guidance of the project; select relevant experts to a reference group to perform a later project evaluation.2. Development and implementation: The development part will concern methods to calculate chlorophyll, phytoplankton absorption and primary production from satellite observations. Methods to calculate satellite retrieved chlorophyll concentration in both case I and II waters will be developed. In case II waters a combined atmospheric correction and optical model approach will be used to retrieve water-leaving radiance. Optical models will enable retrieval of inherent optical properties (IOPs). Empirical and semi-analytical models to calculate water column PP will be evaluated and implemented: where appropriate regional ocean characteristics will be used. Simulations from a 3D-biogeochemical model will provide (i) estimates of additional input parameters for the PP algorithm, and (ii) optimal space and time interpolation and extrapolation of functions. Resulting ocean basin-scale and regional PP estimates will be validated in two European LMEs of continental shelf and coastal up welling areas and over the ocean basin scale (North Atlantic Ocean). Model output will be validated against in site data such as local data sets from long-term oceanographic moorings (e.g. BATS), individual cruise and time-series measurements to be obtained during the project.3. Production and demonstration: The validated methods will be applied to SeaWiFS (and other ocean colour data) to produce ocean basin-scale and regional PP database at different resolutions. Results will be tested for applicability to an ecosystem (food-chain) model. Use by the community will be facilitated through CD-ROM dissemination including user-friendly software to enable browsing, selection and extraction of data subsets, and data conversion to Ecopath format. The impact of the project results in term of fisheries management and CFP will be prioritised.
Milestones and results
Phase 1: Completion of sensitivity, feasibility study and a user workshop to form the basis for the specification of research activities.
Phase 2: The project team will undertake the necessary algorithm development, evaluation, and selection. The selected algorithms will be evaluated against numerical model simulations and error estimates, and presented at a second user workshop.
Phase 3: An operational implementation and production will be undertaken using the validated approach. Dissemination through CD-ROM.

Convocatoria de propuestas

Data not available

Régimen de financiación

CSC - Cost-sharing contracts

Coordinador

NANSEN ENVIRONMENTAL AND REMOTE SENSING CENTER
Aportación de la UE
Sin datos
Dirección
3A,EDVARD GRIEGSVEJ 3A
5059 BERGEN
Noruega

Ver en el mapa

Coste total
Sin datos

Participantes (2)