@article {Safi2019116, title = {Vitamine ENA: A framework for the development of ecosystem-based indicators for decision makers}, journal = {Ocean and Coastal Management}, volume = {174}, year = {2019}, note = {cited By 5}, pages = {116-130}, publisher = {Elsevier Ltd}, abstract = {The Water Framework Directive (article 2, paragraph 21) as well as the Marine Strategy Framework Directive (MSFD, Descriptor 4) stress the need for assessing the quality of the structure and the functioning of ecosystems. The MSFD also underlines the urgent need for development, testing, and validation of ecosystem state indicators. Holistic function-based criteria and indicators as provided by Ecological Network Analysis (ENA) could be used to define and assess the {\textquoteleft}Good Environmental Status{\textquoteright} of marine ecosystems. This approach also feeds Ecosystem Based Management (EBM). ENA generally analyses the fluxes{\textquoteright} quality of a single medium such as here the carbon fluxes in a food web and produces a number of useful metrics that indicate, inter alia, the total carbon flow through the system, the quality of the functioning of the system or the trophic efficiency of system. A short list of indices [i.e. Detritivory over Herbivory ratio (D/H), Connectance Index (CI), Transfer Efficiency (TE) over trophic levels, System Omnivory Index (SOI), Finn{\textquoteright}s Cycling Index (FCI), relative Redundancy (R/DC), Average Mutual Information (AMI) and Interaction Strength (IS)] is proposed for practical use. This paper presents a first framework for OSPAR Regional Sea Convention food web indicators based on ENA. These are presented here focusing on their applicability and what is needed for implementation, illustrating their potential use by case studies. {\textcopyright} 2019 Elsevier Ltd}, keywords = {Average mutual information, Carbon, Carbon flux, Criteria and indicators, Decision making, Ecological network analysis, ecosystem function, ecosystem management, ecosystem structure, Ecosystem-based management, Ecosystems, Efficiency, environmental indicator, Environmental management, Environmental regulations, food web, Good environmental status, holistic approach, Interaction strength, marine ecosystem, Marine pollution, Marine strategy framework directives, Water conservation, Water Framework Directives}, issn = {09645691}, doi = {10.1016/j.ocecoaman.2019.03.005}, url = {https://www.sciencedirect.com/science/article/abs/pii/S096456911830591X}, author = {Safi, Georges and Giebels, D. and Arroyo, N.-L. and Heymans, J.J. and Preciado, I and Raoux, Aurore and Sch{\"u}ckel, U. and Samuele Tecchio and de Jonge, V.N. and Nathalie Niquil} } @article {Tam20172040, title = {Towards ecosystem-based management: Identifying operational food-web indicators for marine ecosystems}, journal = {ICES Journal of Marine Science}, volume = {74}, number = {7}, year = {2017}, note = {cited By 25}, pages = {2040-2052}, publisher = {Oxford University Press}, abstract = {Modern approaches to Ecosystem-Based Management and sustainable use of marine resources must account for the myriad of pressures (interspecies, human and environmental) affecting marine ecosystems. The network of feeding interactions between co-existing species and populations (food webs) are an important aspect of all marine ecosystems and biodiversity. Here we describe and discuss a process to evaluate the selection of operational food-web indicators for use in evaluating marine ecosystem status. This process brought together experts in food-web ecology, marine ecology, and resource management, to identify available indicators that can be used to inform marine management. Standard evaluation criteria (availability and quality of data, conceptual basis, communicability, relevancy to management) were implemented to identify practical food-web indicators ready for operational use and indicators that hold promise for future use in policy and management. The major attributes of the final suite of operational food-web indicators were structure and functioning. Indicators that represent resilience of the marine ecosystem were less developed. Over 60 potential food-web indicators were evaluated and the final selection of operational food-web indicators includes: the primary production required to sustain a fishery, the productivity of seabirds (or charismatic megafauna), zooplankton indicators, primary productivity, integrated trophic indicators, and the biomass of trophic guilds. More efforts should be made to develop thresholds-based reference points for achieving Good Environmental Status. There is also a need for international collaborations to develop indicators that will facilitate management in marine ecosystems used by multiple countries. {\textcopyright} 2017 International Council for the Exploration of the Sea. All rights reserved.}, keywords = {Biomass, coexistence, ecosystem approach, ecosystem management, ecosystem resilience, environmental assessment, environmental indicator, food web, marine ecosystem, primary production, strategic approach, trophic status}, issn = {10543139}, doi = {10.1093/icesjms/fsw230}, url = {https://academic.oup.com/icesjms/article-abstract/74/7/2040/2970046}, author = {Tam, J.C. and Link, J.S. and Rossberg, A.G. and Rogers, S.I. and Levin, P.S. and Rochet, M.-J. and Bundy, A. and Belgrano, A. and Libralato, S. and Maciej Tomasz Tomczak and Van De Wolfshaar, K. and Pranovi, F. and Gorokhova, E. and Large, S.I. and Nathalie Niquil and Greenstreet, S.P.R. and Druon, J.-N. and Lesutiene, J. and Johansen, M. and Preciado, I. and Patricio, J. and Palialexis, A. and Tett, P. and Johansen, G.O. and Houle, J. and Rindorf, A.} }