title: Elemental composition of two ecologically contrasting seamount fishes, the bluemouth (Helicolenus dactylopterus) and blackspot seabream (Pagellus bogaraveo).
abstract: Concentrations of V, Cr, Mn, Co, Ni, Cu, Zn, As, Se, Cd and Pb were determined in muscle, liver and gonads of two ecologically contrasting fishes, Helicolenus dactylopterus (benthic) and Pagellus bogaraveo (benthopelagic). Elevated concentrations of As, Se and Cd found in tissues of both species appear to mirror the contribution of volcanic activity to the natural inputs of elements to Azorean waters. Results showed different element accumulation between the two species. Whereas higher concentrations were found in the liver of P. bogaraveo, elevated values were observed in the muscle of H. dactylopterus. Differences in accumulation are most likely related to metabolic rates, diet specificities and habitat. Concentrations in gonads varied up to four orders of magnitude, being higher and more variable in P. bogaraveo than H. dactylopterus. Elevated values of Cd were detected in gonads of both species despite its non-essential role on metabolic functions, presumably related to elimination.
authors.affiliation: IPMA Portuguese Institute of Sea and Atmosphere, Rua Alfredo Magalhães Ramalho,6 1495-006 Lisbon, Portugal; CIIMAR Marine and Environmental Research Center, Rua dos Bragas, 289, 4050-123 Porto, Portugal. Electronic address: jraimundo@ipma.pt.
authors.forename: Joana
authors.initials: J
authors.lastname: Raimundo
authors.affiliation: CIIMAR Marine and Environmental Research Center, Rua dos Bragas, 289, 4050-123 Porto, Portugal.
authors.forename: Carlos
authors.initials: C
authors.lastname: Vale
authors.affiliation: IMAR/DOP - Department of Oceanography and Fisheries, 9901-862 Horta, Azores, Portugal; MARE Marine and Environmental Science Center, University of the Azores, 9901-862 Horta, Azores, Portugal.
authors.forename: Inês
authors.initials: I
authors.lastname: Martins
authors.affiliation: IMAR/DOP - Department of Oceanography and Fisheries, 9901-862 Horta, Azores, Portugal; MARE Marine and Environmental Science Center, University of the Azores, 9901-862 Horta, Azores, Portugal.
authors.forename: Jorge
authors.initials: J
authors.lastname: Fontes
authors.affiliation: IMAR/DOP - Department of Oceanography and Fisheries, 9901-862 Horta, Azores, Portugal; MARE Marine and Environmental Science Center, University of the Azores, 9901-862 Horta, Azores, Portugal.
authors.forename: Gonçalo
authors.initials: G
authors.lastname: Graça
authors.affiliation: IPMA Portuguese Institute of Sea and Atmosphere, Rua Alfredo Magalhães Ramalho,6 1495-006 Lisbon, Portugal; CIIMAR Marine and Environmental Research Center, Rua dos Bragas, 289, 4050-123 Porto, Portugal.
authors.forename: Miguel
authors.initials: M
authors.lastname: Caetano
mesh_terms: D000818:Animals; D001151:Arsenic / Q000032:analysis / Q000493:pharmacokinetics; D001394:Azores; D002104:Cadmium / Q000032:analysis / Q000493:pharmacokinetics; D017753:Ecosystem; D060146:Ecotype; D005399:Fishes / Q000378:metabolism; D008099:Liver / Q000378:metabolism; D008670:Metals / Q000032:analysis* / Q000493:pharmacokinetics; D018482:Muscle, Skeletal / Q000378:metabolism; D010473:Perciformes / Q000378:metabolism; D012643:Selenium / Q000032:analysis / Q000493:pharmacokinetics; D013045:Species Specificity; D014018:Tissue Distribution
chemical_list: D008670:Metals; D002104:Cadmium; D012643:Selenium; D001151:Arsenic
keywords: Bioaccumulation; Condor seamount; Deep sea; Helicolenus dactylopterus; Metals; Pagellus bogaraveo