Arreguín Sánchez, F. (2022). Conventional Fisheries Managementand the Need for an Ecosystem Approach. Springer Cham (Ed.), Holistic Approach to Ecosystem-Based Fisheries Management. Linking Biological Hierarchyes for Sustainable Fishing. Cap. 2, pp.17-29. DOI: 10.1007/978-3-030-96847-2_2.
Francisco Arreguín Sánchez 1
Historically, scientific advice on fishery’s management has been based on the concept of population and its production capacity or surplus production. The need for this advice is clear, fishing does not have inputs to promote greater production, and the sector is fully dependent on the natural production capacity, which is limited by the carrying capacity of the ecosystem. The advice consists, theoretically, in defining the best exploitation conditions without affecting that production capacity. Science has been evolved in accordance with knowledge needs, and more precise estimates of fishing mortality have been required over time. This chapter gives an overview of how this evolution has occurred and how it has gone from a perspective of stability and relatively simple knowledge requirements, to a recent condition, where there are changes with a continuous trend because of the effect of changes of climate patterns, where populations adapt and ecosystems are reconfigured, also continuously. The ecosystem-based fisheries management concept has been agreed and trying to adopt in two ways: the reduction of the impact of fishing on habitats and endangered species and the effects of biomass removal on ecosystem organization and functioning, both advising limits of fishing looking from fishing operations on exploited target stocks towards the ecosystem.
Palabras clave: ecosystem approach; Fisheries Management
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