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dc.contributor.author
Quiñones, Javier
dc.contributor.author
González Carman, Victoria
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dc.contributor.author
Zeballos, Jorge
dc.contributor.author
Purca, Sara
dc.contributor.author
Mianzan, Hermes Walter
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dc.date.available
2024-08-14T10:30:35Z
dc.date.issued
2010-03
dc.identifier.citation
Quiñones, Javier; González Carman, Victoria; Zeballos, Jorge; Purca, Sara; Mianzan, Hermes Walter; Effects of El Niño-driven environmental variability on black turtle migration to Peruvian foraging grounds; Springer; Hydrobiologia; 645; 1; 3-2010; 69-79
dc.identifier.issn
0018-8158
dc.identifier.uri
http://hdl.handle.net/11336/242455
dc.description.abstract
We analyzed sea temperature as an environmental factor, in association with ENSO, affecting the migration of East Pacific black turtle, Chelonia mydas (=Chelonia agassizii Bocourt), to its foraging areas and its feeding ecology at San Andrés, Peru. A 19-year sea turtle landing database (1970-1988) was constructed to associate landing fluctuations with environmental variability represented by the Peruvian Oscillation Index. A positive correlation between them (r = 0.75, p=0.05) indicated that exceptionally large black turtle landings occurred in San Andres port during El Niño episodes. Warmer waters (SST 22-28C) approached near the Peruvian coast during El Niño episodes, thus facilitating black turtle access to this area. Furthermore, during El Niño 1987, large juvenile and adult black turtles, known to be primarily herbivorous, fed mainly on the scyphozoan jellyfish Chrysaora plocamia Peron & Lesueur, which was very abundant during this event. It is likely that black turtles exploited this resource opportunistically. Inter-annual environmental variability, driven by El Niño Southern Oscillation, has profound consequences for the ecology of the endangered black turtle, which should be considered when evaluating the effects of anthropogenic activities on its population dynamics.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Chelonia mydas (=Chelonia agassizii)
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ENSO
dc.subject
trophic migration
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jellyfish
dc.subject
sea turtle landings
dc.subject
Peru
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
Effects of El Niño-driven environmental variability on black turtle migration to Peruvian foraging grounds
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-08-12T13:57:03Z
dc.journal.volume
645
dc.journal.number
1
dc.journal.pagination
69-79
dc.journal.pais
Alemania
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dc.description.fil
Fil: Quiñones, Javier. Instituto del Mar del Perú; Perú
dc.description.fil
Fil: González Carman, Victoria. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina
dc.description.fil
Fil: Zeballos, Jorge. Instituto del Mar del Perú; Perú
dc.description.fil
Fil: Purca, Sara. Instituto del Mar del Perú; Perú
dc.description.fil
Fil: Mianzan, Hermes Walter. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; Argentina
dc.journal.title
Hydrobiologia
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s10750-010-0225-8
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10750-010-0225-8
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