Relationships Between Off-bottom Bivalve Aquaculture and the Magellanic Steamer Duck Tachyeres Pteneres in Southern Chile

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dc.contributor.authorMedina-Vogel, Gonzalo
dc.contributor.authorPons, Daniel
dc.contributor.authorSchlatter, Roberto P.
dc.date.accessioned2023-03-25T14:19:03Z
dc.date.available2023-03-25T14:19:03Z
dc.date.issued2019
dc.descriptionIndexación Scopusen
dc.description.abstractThe interactions between aquaculture farms and endemic marine birds in the Northern Hemisphere have been a recurrent topic in the past decades. In the Northern Hemisphere, shellfish aquaculture farms have diverse effects on wildlife populations, and the substantial predation on mussels by birds can lead to culling of the birds by farm managers. In this work, we assessed the interaction between Chilean blue mussel Mytilus chilensis farms and the Magellanic steamer duck Tachyeres pteneres, an endemic duck of southern Chile whose population is thought to be declining. In particular, we assessed the importance of the Chilean blue mussel in the Magellanic steamer duck’s diet, and we estimated the magnitude of losses to aquaculture due to predation by the ducks. Between March 1988 and February 1989, observations and sampling collections were performed around a bivalve aquaculture farm in Yaldad Bay (Chiloé Island, Chile). In contrast to what happens in the Northern Hemisphere, we infer that Chilean blue mussel farms do not promote the increase of the Magellanic steamer duck population in Chile: the population dynamics appear to be responding to other habitat variables. Moreover, our estimate for the losses due to predation was less than 1.6% of the annual farm production in Chile. Despite the fact that sampling was done almost 30 years ago, this study is the most recent one investigating the ecology and social behaviour of the Magellanic steamer duck and its relationship with bivalve aquaculture. © The authors 2019. Open Access under Creative Commons by Attribution Licence. Use, distribution and reproduction are unrestricted. Authors and original publication must be credited.es
dc.identifier.citationAquaculture Environment Interactions - Volume 11, Pages 321 - 330 - 2019es
dc.identifier.doi10.3354/aei00313en
dc.identifier.issn1869-215X
dc.identifier.urihttps://repositorio.unab.cl/xmlui/handle/ria/47867
dc.language.isoenes
dc.publisherAquaculture Environment Interactionses
dc.rights.licenseAttribution 4.0 International (CC BY 4.0)en
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectChilean blue mussel aquaculturees
dc.subjectLosseses
dc.subjectMagellanic steamer duckes
dc.subjectQuality feeding strategyes
dc.titleRelationships Between Off-bottom Bivalve Aquaculture and the Magellanic Steamer Duck Tachyeres Pteneres in Southern Chilees
dc.typeArtículoes
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