[en] Identification of effective measures to reduce fisheries impacts on the seafloor : a bio-economic evaluation in the Baltic Sea

Type de document

Est une partie de

Meeting

ICES ASC 2019 : Annual Science Conference of the The International Council for the Exploration of the Sea - 2019-09-09 - Gothenburg - Sweden

Mots clés en

Environmental Sciences/Biodiversity and Ecology
Environmental Sciences/Environment and Society
Environmental Sciences/Environmental Engineering
Environmental Sciences/Global Changes
Humanities and Social Sciences/Social Anthropology and ethnology
Life Sciences [q-bio]/Agricultural sciences/Sciences and technics of fishery
Life Sciences [q-bio]/Ecology, environment/Ecosystems
Baltic Sea
benthic habitats
ecosystem-based management
fisheries economics
GES
HELCOM
MSFD
spatial footprint
trade-offs

Date de publication

Langue du document

Anglais

Résumé

[en] The introduction of ecosystem-based management measures for Baltic fisheries to achieve Good Environmental Status (GES) within the MSFD (Marine Strategy Framework Directive) and the HELCOM (Baltic Marine Environment Protection Commission) requires tools that can evaluate measures to reduce the spatial footprint on the seabed. We applied the DISPLACE modelling platform at the wide-scale Baltic Sea to evaluate the effect of different spatial fishery management measures such as area closures, both in terms of impact on benthic habitats and impacts on catch, revenue and profit for international fisheries. DISPLACE simulates individual fishing vessels (>12 m length using bottom-contact gears) and how they redistribute their fishing effort given spatial or temporal closures. A new module, informed from available science for projecting benthos dynamics in response to fishing pressure, provides quantification of depletion from fishing and recovery of specific benthic habitats and seabed types. This study evaluates different scenarios and trade-offs with the objective to identify effective measures to achieve GES by 2021 as stipulated by the Baltic Sea Action Plan. A suite of time and space mitigation scenarios are defined to compare the effects of a gradient of fishing restrictions and closures in different areas, habitat types, jurisdictions, breaking down to the impact from different type of gears and on several fisheries economics. The results obtained are intended to help the EU maritime policy in finding ways to improve the management of the Baltic Sea seafloor along reducing the human footprint induced by the fishing activities, while considering biological and economic impacts.

Collection

Source

HAL

Type de ressource

Notice

Licence

Distributed under a Creative Commons Attribution 4.0 International License

Citation bibliographique

François Bastardie, Jules Danto, J. Rasmus Nielsen, Ole Eigaard, Grete Dinesen, et al.. Identification of effective measures to reduce fisheries impacts on the seafloor : a bio-economic evaluation in the Baltic Sea. ICES ASC 2019 : Annual Science Conference of the The International Council for the Exploration of the Sea, Sep 2019, Gothenburg, Sweden. [hal-02523335]

Citer cette ressource

[en] Identification of effective measures to reduce fisheries impacts on the seafloor : a bio-economic evaluation in the Baltic Sea, dans Études nordiques, consulté le 19 Avril 2025, https://etudes-nordiques.cnrs.fr/s/numenord/item/17338