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

Iván Loaiza Alamo, Gudrun De Boeck, Juan Alcazar, Diego Campos, Susana Cárdenas‐Alayza, María Ganoza, Muriel Gómez‐Sanchez, María Miglio and Marleen De Troch (UGent)
(2022) JOURNAL OF THE WORLD AQUACULTURE SOCIETY. 53(2). p.452-474
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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 delta N-15 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.
Keywords
biomagnification, metals, Peruvian ecosystems, scallop aquaculture, stable isotopes, PERSISTENT ORGANIC POLLUTANTS, STABLE-ISOTOPE ANALYSIS, HUMBOLDT CURRENT SYSTEM, FOOD-WEB, TRACE-ELEMENTS, NITROGEN, BIOMAGNIFICATION, MERCURY, BIOACCUMULATION, HABITAT

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MLA
Loaiza Alamo, Iván, et al. “Trophic Interactions and Metal Transfer in Marine Ecosystems Driven by the Peruvian Scallop Argopecten Purpuratus Aquaculture.” JOURNAL OF THE WORLD AQUACULTURE SOCIETY, vol. 53, no. 2, 2022, pp. 452–74, doi:10.1111/jwas.12822.
APA
Loaiza Alamo, I., De Boeck, G., Alcazar, J., Campos, D., Cárdenas‐Alayza, S., Ganoza, M., … De Troch, M. (2022). Trophic interactions and metal transfer in marine ecosystems driven by the Peruvian scallop Argopecten purpuratus aquaculture. JOURNAL OF THE WORLD AQUACULTURE SOCIETY, 53(2), 452–474. https://doi.org/10.1111/jwas.12822
Chicago author-date
Loaiza Alamo, Iván, Gudrun De Boeck, Juan Alcazar, Diego Campos, Susana Cárdenas‐Alayza, María Ganoza, Muriel Gómez‐Sanchez, María Miglio, and Marleen De Troch. 2022. “Trophic Interactions and Metal Transfer in Marine Ecosystems Driven by the Peruvian Scallop Argopecten Purpuratus Aquaculture.” JOURNAL OF THE WORLD AQUACULTURE SOCIETY 53 (2): 452–74. https://doi.org/10.1111/jwas.12822.
Chicago author-date (all authors)
Loaiza Alamo, Iván, Gudrun De Boeck, Juan Alcazar, Diego Campos, Susana Cárdenas‐Alayza, María Ganoza, Muriel Gómez‐Sanchez, María Miglio, and Marleen De Troch. 2022. “Trophic Interactions and Metal Transfer in Marine Ecosystems Driven by the Peruvian Scallop Argopecten Purpuratus Aquaculture.” JOURNAL OF THE WORLD AQUACULTURE SOCIETY 53 (2): 452–474. doi:10.1111/jwas.12822.
Vancouver
1.
Loaiza Alamo I, De Boeck G, Alcazar J, Campos D, Cárdenas‐Alayza S, Ganoza M, et al. Trophic interactions and metal transfer in marine ecosystems driven by the Peruvian scallop Argopecten purpuratus aquaculture. JOURNAL OF THE WORLD AQUACULTURE SOCIETY. 2022;53(2):452–74.
IEEE
[1]
I. Loaiza Alamo et al., “Trophic interactions and metal transfer in marine ecosystems driven by the Peruvian scallop Argopecten purpuratus aquaculture,” JOURNAL OF THE WORLD AQUACULTURE SOCIETY, vol. 53, no. 2, pp. 452–474, 2022.
@article{8724868,
  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 delta N-15 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.}},
  author       = {{Loaiza Alamo, Iván and De Boeck, Gudrun and Alcazar, Juan and Campos, Diego and Cárdenas‐Alayza, Susana and Ganoza, María and Gómez‐Sanchez, Muriel and Miglio, María and De Troch, Marleen}},
  issn         = {{0893-8849}},
  journal      = {{JOURNAL OF THE WORLD AQUACULTURE SOCIETY}},
  keywords     = {{biomagnification,metals,Peruvian ecosystems,scallop aquaculture,stable isotopes,PERSISTENT ORGANIC POLLUTANTS,STABLE-ISOTOPE ANALYSIS,HUMBOLDT CURRENT SYSTEM,FOOD-WEB,TRACE-ELEMENTS,NITROGEN,BIOMAGNIFICATION,MERCURY,BIOACCUMULATION,HABITAT}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{452--474}},
  title        = {{Trophic interactions and metal transfer in marine ecosystems driven by the Peruvian scallop Argopecten purpuratus aquaculture}},
  url          = {{http://doi.org/10.1111/jwas.12822}},
  volume       = {{53}},
  year         = {{2022}},
}
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