Reference points for predators will progress ecosystem‐based management of fisheries

Type Article
Date 2020-03
Language English
Author(s) Hill Simeon L.1, Hinke Jefferson2, Bertrand Sophie3, Fritz Lowell4, Furness Robert W.5, Ianelli James N.6, Murphy Matthew7, Oliveros‐ramos Ricardo8, Pichegru Lorien9, Sharp Rowland7, Stillman Richard A.10, Wright Peter J.11, Ratcliffe Norman1
Affiliation(s) 1 : British Antarctic Survey, Cambridge ,UK
2 : Antarctic Ecosystem Research, Division Southwest Fisheries Science Center, National Marine Fisheries Service National Oceanic and Atmospheric Administration, La Jolla CA, USA
3 : Institut de Recherche pour le Développemen,t (MARBEC, Univ. Montpellier, CNRS, Ifremer, IRD) Sète ,France
4 : Marine Mammal Laboratory (ret.) Alaska Fisheries Science Center, National Marine Fisheries Service National Oceanic and Atmospheric Administration ,Seattle WA ,USA
5 : MacArthur Green ,Glasgow, UK
6 : Resource Ecology and Fisheries Management Division, Alaska Fisheries Science Center National Marine Fisheries Service , National Oceanic and Atmospheric Administration Seattle WA ,USA
7 : Natural Resources Wales, Bangor Gwynedd, UK
8 : Instituto del Mar del Perú ,Callao, Perú
9 : DST/NRF ,Centre of Excellence at the Percy FitzPatrick, Institute of African Ornithology, and Coastal and Marine Research Institute Nelson Mandela University Port Elizabeth ,South Africa
10 : Department of Life and Environmental Sciences, Faculty of Science and Technology Bournemouth University Poole Dorset, UK
11 : Marine Scotland Science ,Aberdeen, UK
Source Fish And Fisheries (1467-2960) (Wiley), 2020-03 , Vol. 21 , N. 2 , P. 368-378
DOI 10.1111/faf.12434
WOS© Times Cited 5
Keyword(s) adaptive management, Aichi Biodiversity Targets, ecosystem interactions, indirect impacts, management strategy, precautionary approach
Abstract

Ecosystem‐based management of fisheries aims to allow sustainable use of fished stocks while keeping impacts upon ecosystems within safe ecological limits. Both the FAO Code of Conduct for Responsible Fisheries and the Aichi Biodiversity Targets promote these aims. We evaluate implementation of ecosystem‐based management in six case‐study fisheries in which potential indirect impacts upon bird or mammal predators of fished stocks are well publicized and well studied. In particular, we consider the components needed to enable management strategies to respond to information from predator monitoring. Although such information is available in all case‐studies, only one has a reference point defining safe ecological limits for predators and none has a method to adjust fishing activities in response to estimates of the state of the predator population. Reference points for predators have been developed outside the fisheries management context, but adoption by fisheries managers is hindered a lack of clarity about management objectives and uncertainty about how fishing affects predator dynamics. This also hinders the development of adjustment methods because these generally require information on the state of ecosystem variables relative to reference points. Nonetheless, most of the case‐studies include precautionary measures to limit impacts on predators. These measures are not used tactically and therefore risk excessive restrictions on sustainable use. Adoption of predator reference points to inform tactical adjustment of precautionary measures would be an appropriate next step towards ecosystem‐based management.

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Hill Simeon L., Hinke Jefferson, Bertrand Sophie, Fritz Lowell, Furness Robert W., Ianelli James N., Murphy Matthew, Oliveros‐ramos Ricardo, Pichegru Lorien, Sharp Rowland, Stillman Richard A., Wright Peter J., Ratcliffe Norman (2020). Reference points for predators will progress ecosystem‐based management of fisheries. Fish And Fisheries, 21(2), 368-378. Publisher's official version : https://doi.org/10.1111/faf.12434 , Open Access version : https://archimer.ifremer.fr/doc/00602/71400/