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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
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The impact of fisheries discards on scavengers in the sea
Depestele, J.; Feekings, J.; Reid, D.G.; Cook, R.; Gascuel, D.; Girardin, R.; Heath, M.; Hernvann, P.-Y.; Morato, T.; Soszynski, A.; Savina-Rolland, M. (2019). The impact of fisheries discards on scavengers in the sea, in: Uhlmann, S.S. et al. The European Landing Obligation. Reducing Discards in Complex, Multi-Species and Multi-Jurisdictional Fisheries. pp. 129-162. https://dx.doi.org/10.1007/978-3-030-03308-8_7
In: Uhlmann, S.S. et al. (Ed.) (2019). The European Landing Obligation. Reducing Discards in Complex, Multi-Species and Multi-Jurisdictional Fisheries. Springer Nature: Switzerland. ISBN 978-3-030-03307-1. xix, 431 pp. https://dx.doi.org/10.1007/978-3-030-03308-8, meer
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| Trefwoord |
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| Author keywords |
Carrion; Discard consumption; Food subsidies; Food web models; Scavengers |
| Auteurs | | Top |
- Depestele, J., meer
- Feekings, J.
- Reid, D.G.
- Cook, R.
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- Gascuel, D.
- Girardin, R.
- Heath, M.
- Hernvann, P.-Y.
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- Morato, T.
- Soszynski, A.
- Savina-Rolland, M.
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| Abstract |
A scavenger is an animal that feeds on dead animals (carrion) that it has not killed itself. Fisheries discards are often seen as an important food source for marine scavengers so the reduction of discards due to the Landing Obligation may affect their populations. The literature on scavenging in marine ecosystems is considerable, due to its importance in the trophic ecology of many species. Although discards undoubtedly contribute to these species’ food sources, few can be seen to be solely dependent on carrion (including discards). Ecosystem models predicted that discards contributed very little to the diet of scavengers at a regional scale. A reduction in discards through the Landing Obligation may therefore affect populations for a few species in some areas, but generally this is unlikely to be the case. But it is challenging to identify how important discards might be to scavengers, as they are taxonomically diverse and vary in the role they play in scavenging interactions. |
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