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dc.contributor.author
Di Prinzio, Cecilia Yanina
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dc.contributor.author
Arismendi, Ivan
dc.contributor.author
Olivos, J. Andrés
dc.date.available
2024-01-02T11:57:43Z
dc.date.issued
2023-10
dc.identifier.citation
Di Prinzio, Cecilia Yanina; Arismendi, Ivan; Olivos, J. Andrés; Revealing a rapid shift in the phenology of the adult spawning migration of an introduced Chinook salmon population in Patagonia; Springer; Aquatic Ecology; 10-2023; 1-14
dc.identifier.issn
1386-2588
dc.identifier.uri
http://hdl.handle.net/11336/221938
dc.description.abstract
Chinook salmon (Oncorhynchus tshawytscha) is invading South America. Both the high plasticity and genetic diversity of introduced propagules have been hypothesized to be responsible for the success of this species’ invasion. Yet, the influence of environmental variability on the expressed phenology of the adult spawning migration has been overlooked in this region. Here, we examined the consistency in timing, duration, and relative abundance of adult salmon migrants and their associations with environmental river conditions and surrounding ocean in a regulated river system in Patagonia. We conducted monthly long-term snorkeling fish surveys (2010–2019) and collected associated environmental information from the river and ocean. We observed a recent increase in duration of the spawning migration and a decline in the relative abundance of adult migrants. A warming phase of the Southern Pacific Ocean (during the two previous years) was associated to an extended migration season, whereas a colder river in fall was associated to a lower number of adult migrants. Collectively, our findings suggest that rapid phenological shifts could occur in a recently established salmon population (circa 1980). This process could be explained by novel selective pressures and expression of life history traits in response to novel environmental regimes. Further long-term surveys of introduced salmon can aid in parsing the relationships between environmental regimes and the biology and persistence of these self-sustained populations.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CHINOOK SALMON
dc.subject
SOUTHERN HEMISPHERE
dc.subject
SPAWNING DURATION
dc.subject
SPAWNING MIGRATION
dc.subject.classification
Ecología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Revealing a rapid shift in the phenology of the adult spawning migration of an introduced Chinook salmon population in Patagonia
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-12-18T12:54:18Z
dc.journal.pagination
1-14
dc.journal.pais
Alemania
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dc.description.fil
Fil: Di Prinzio, Cecilia Yanina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagónica. Universidad Nacional de la Patagonia "San Juan Bosco". Centro de Investigación Esquel de Montaña y Estepa Patagónica; Argentina
dc.description.fil
Fil: Arismendi, Ivan. State University of Oregon; Estados Unidos
dc.description.fil
Fil: Olivos, J. Andrés. State University of Oregon; Estados Unidos
dc.journal.title
Aquatic Ecology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10452-023-10066-2
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