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Trophic interactions and metal transfer in marine ecosystems driven by the Peruvian scallop Argopecten purpuratus aquaculture

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dc.contributor.author Loaiza I. es_PE
dc.contributor.author De Boeck G. es_PE
dc.contributor.author Alcazar J. es_PE
dc.contributor.author Campos D. es_PE
dc.contributor.author Cárdenas-Alayza S. es_PE
dc.contributor.author Ganoza M. es_PE
dc.contributor.author Gómez-Sanchez M. es_PE
dc.contributor.author Miglio M. es_PE
dc.contributor.author De Troch M. es_PE
dc.date.accessioned 2024-05-30T23:13:38Z
dc.date.available 2024-05-30T23:13:38Z
dc.date.issued 2021
dc.description Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica (CONCYTEC), Grant/Award Number: 214‐2015‐FONDECYT; Fonds Wetenschappelijk Onderzoek, Grant/Award Number: GOH3817N Funding information
dc.description.abstract This study investigates the trophic interactions and As and Cd transfer along seven marine ecosystems in Peru. Five of these ecosystems are driven by aquaculture of the Peruvian scallop Argopecten purpuratus. A southward increased gradient of δ15N was observed among the three examined regions along the Peruvian coast. The stable isotope analysis in R (SIAR)-stable isotope mixing models helped to clarify the feeding ecology of A. purpuratus and its important predators (e.g., Bursa ventricosa, Romaleon setosum). The food items of A. purpuratus can be ranked in decreasing order of importance: seston > sediment > particulate organic matter (POM) > brackish-and-fresh water POM input, while A. purpuratus itself was found to be the main prey item for predators. The highest trophic magnification factors (TMFs) were 1.46 and 1.07 for As and Cd, respectively, and were both found at the location in front of the Illescas Reserve Zone (northern Peru). Metal biomagnification and non-biomagnification effects were found in the Peruvian marine food webs, but A. purpuratus always fitted the trophic metal magnification or bio-dilution regression model as intermediate consumer and/or prey. The TMFs and linear metal relationships implied that As contamination is a serious concern in marine ecosystems in Peru. © 2021 The Authors. Journal of the World Aquaculture Society published by Wiley Periodicals LLC on behalf of World Aquaculture Society.
dc.description.sponsorship Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - Concytec
dc.identifier.doi https://doi.org/10.1111/jwas.12822
dc.identifier.scopus 2-s2.0-85108138345
dc.identifier.uri https://hdl.handle.net/20.500.12390/3072
dc.language.iso eng
dc.publisher Blackwell Publishing Inc.
dc.relation.ispartof Journal of the World Aquaculture Society
dc.rights info:eu-repo/semantics/openAccess
dc.rights.uri https://creativecommons.org/licenses/by/4.0/
dc.subject Peruvian ecosystems
dc.subject biomagnification es_PE
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#1.06.12
dc.title Trophic interactions and metal transfer in marine ecosystems driven by the Peruvian scallop Argopecten purpuratus aquaculture
dc.type info:eu-repo/semantics/article
dspace.entity.type Publication
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