Ecosystem-based management of fisheries: is science limiting?

Frid, Chris; Paramor, Odette; Scott, Catherine

doi:10.1016/j.icesjms.2006.03.028

Cited by 45 publications

(20 citation statements)

References 25 publications

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“…Smith 1994, Mullon et al 2005, Smith & Link 2005, Murawski 2007, Branch et al 2011, Pinsky et al 2011. While the solution and the way forward towards successful re source management does not rest in science alone (Frid et al 2006, Bundy et al 2008, Fulton et al 2011, robust science advice, grounded in an ecosystem context, is an essential component. The inherent complexity and the large scale of marine ecosystems suggests that progress toward an understanding of how the structure and functioning of marine ecosystems influence and regulate patterns of fisheries production will be most effective if researchers adopt a comparative approach (Link et al 2010a, Murawski et al 2010, since this is similar to the replication method traditionally used in ex perimental science.…”

Section: Introductionmentioning

confidence: 99%

Common patterns, common drivers: comparative analysis of aggregate surplus production across ecosystems

Bundy¹,

Bohaboy²,

Hjermann³

et al. 2012

Mar. Ecol. Prog. Ser.

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Marine ecosystems are dynamic, often have open boundaries, and their overall productivity responds nonlinearly to multiple drivers acting at multiple temporal and spatial scales, under a triad of influences: climatic, anthropogenic, and ecological. In order to further our understanding of how the structure and functioning of marine ecosystems influence and regulate patterns of fisheries production, and how they are affected by this triad of drivers, a comparative approach is required. We apply a system-level surplus production modeling approach to the total aggregated catch and biomass of all major targeted fish species in 12 exploited Northern Hemisphere ecosystems. We use 2 variations of a surplus production model: a regression model and a dynamic model, each fit with and without environmental and biological covariates. Our aims were to explore (1) the effects of common drivers at the basin scale and their relative influence within the triad of drivers among systems, (2) the impact of covariates on biological reference points and implications for fisheries management, and (3) the relationship between maximum sustainable yield (MSY) and production. Our results show that the environment affects estimates of systemlevel MSY across all ecosystems studied and that specifically water temperature is a major influence on productivity. Emergent properties of northern hemisphere systems suggest that MSY values and optimal exploitation rates are relatively consistent: MSY ranges between 1 and 5 t km . Finally, we suggest that the relationship between fisheries yield and primary production is not as simple as suggested in other studies. These results put fisheries in a broader ecosystem context and have implications for an ecosystem approach to management.

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Section: Introductionmentioning

confidence: 99%

Common patterns, common drivers: comparative analysis of aggregate surplus production across ecosystems

Bundy¹,

Bohaboy²,

Hjermann³

et al. 2012

Mar. Ecol. Prog. Ser.

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“…Addressing the issues raised has brought about profound changes in the way that marine natural resources are being managed: away from the traditional single-species approach applied to the targeted commercial species, towards a more holistic ecosystem approach to fisheries management (EAFM) (Gislason et al 2000, Hall & Mainprize 2004, Cury & Christensen 2005, Garcia & Cochrane 2005, Frid et al 2006. Full implementation of an EAFM requires understanding of the impacts of fishing on all major ecosystem components, and of the consequences of these on ecosystem functioning.…”

Section: Introductionmentioning

confidence: 99%

Effects of fishing disturbance on benthic communities and secondary production within an intensively fished area

Reiss¹,

Greenstreet²,

Sieben³

et al. 2009

Mar. Ecol. Prog. Ser.

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Demersal fishing alters seabed habitats and affects the structure and functioning of benthic invertebrate communities. At a critical level of disturbance, such communities may approach an equilibrium disturbed state in which a further increase in disturbance has little additional impact. Such arguments have been used to suggest that an ecosystem approach to fisheries management (EAFM) should protect lightly fished areas and deflect fishing activity into areas that are already intensively fished. In this study, the effects of variation in fishing disturbance on the secondary production, species diversity, abundance, biomass, and community structure of benthic infauna were examined in a region of the German Bight (North Sea) that has been intensively trawled for decades. Variation in fishing disturbance across the study area was determined using automated position registration and vessel monitoring through satellite. Even in such a heavily fished area, linear regression analyses revealed that biomass, species richness, and production decreased significantly with increasing fishing intensity. Although redundancy analyses (RDA) showed that sediment characteristics were influential in determining the structure of the infauna community, partial RDA revealed that fishing continued to have an impact on community structure in terms of biomass. These results suggest that, in implementing an EAFM, managers will need to consider the possibility that, even in areas with high chronic fishing disturbance, further increases in fishing activity may still cause additional damage to benthic invertebrate communities.

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“…Fisheries industry has lost faith in the present managerial system which partly explain the impairment of the quality of the catch data going into assessment, and, consequently, of the advice itself. At the same time, scientists advocate that single-species advice need to incorporate ecological and ecosystem aspects (Frid et al, 2006) in order to move towards an ecosystem approach to fisheries and assure sustainability in the long term. Ironically, non-governmental organizations and conservationists in general blame politicians, fishery control and fishery scientists alike for the depletion of vital marine resources, while putting emphasize on criticizing single-species models and single-species management 'because they haven't worked', may risk to be throwing the baby out with the bath water, i.e.…”

Section: Discussionmentioning

confidence: 99%