Modelled spatiotemporally explicit fish densities at different fisheries management scenarios ...
Conflicts of interest between resource extraction and conservation are widespread, and negotiating such conflicts or trade-offs is a key issue for ecosystem managers. One such trade-off is resource competition between fisheries and marine top predators. Managing this trade-off has so far been diffic...
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| Format: | Dataset |
| Language: | English |
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Dryad
2020
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| Online Access: | https://dx.doi.org/10.5061/dryad.0p2ngf1z7 https://datadryad.org/stash/dataset/doi:10.5061/dryad.0p2ngf1z7 |
| Summary: | Conflicts of interest between resource extraction and conservation are widespread, and negotiating such conflicts or trade-offs is a key issue for ecosystem managers. One such trade-off is resource competition between fisheries and marine top predators. Managing this trade-off has so far been difficult due to a lack of knowledge regarding the amount and distribution of prey required by top predators. Here, we develop a framework that can be used to address this gap: a bio-energetic model linking top predator breeding biology and foraging ecology with forage fish ecology and fisheries management. We apply the framework to a Baltic Sea colony of common guillemots Uria aalge and razorbills Alca torda, two seabird species sensitive to local prey depletion, and show that densities of forage fish (sprat Sprattus sprattus and herring Clupea harengus) corresponding to the current fisheries management target BMSY are sufficient for successful breeding. A previously proposed fisheries management target for conserving ... |
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