Publicación:
Peruvian scallop Argopecten purpuratus: From a key aquaculture species to a promising biondicator species
Peruvian scallop Argopecten purpuratus: From a key aquaculture species to a promising biondicator species
No hay miniatura disponible
Fecha
2020
Autores
Loaiza I.
Pillet M.
De Boeck G.
De Troch M.
Título de la revista
Revista ISSN
Título del volumen
Editor
Elsevier Ltd
Proyectos de investigación
Unidades organizativas
Número de la revista
Abstracto
The present study analyzed the Peruvian scallop Argopecten purpuratus and its food sources for metal and fatty acid concentrations in order to determine spatial and temporal differences. Metals such as copper (Cu), manganese (Mn), and zinc (Zn) in gills and iron (Fe) and Zn in sediments were the most significant explaining factors for spatial differentiations (degree of contamination), while for fatty acids, it was C14:0, C15:0, C16:0 and C18:0 in A. purpuratus' muscle and in its food sources, which explained more temporal differences (El Niño-Southern Oscillation (ENSO) effect). Gills, digestive gland and intestine were the tissues where metal accumulation was the highest in A. purpuratus. Cd in digestive gland was always high, up to ∼250-fold higher than in other tissues, as previously reported in other bioindicator species for metal pollution. Fatty acids were good biomarkers when annual comparisons were performed, while metals when locations were compared. ENSO 2017 played an important role to disentangle A. purpuratus’ biological conditions and food sources. A. purpuratus from Paracas locations mostly showed higher metal concentrations in gills and digestive glands, and lower fatty acid concentrations in muscle than those from Sechura and Illescas Reserved Zone. © 2019 Elsevier Ltd
Descripción
Palabras clave
Multi-biomarker approach,
Argopecten purpuratus,
Bioindicator species,
Environmental status