Polycyclic aromatic hydrocarbons in the cestode Oncomegas wageneri parasite of Mexican flounder Cyclopsetta chittendeni
| Autor: | Lilia C. Soler-Jiménez, Víctor M. Vidal-Martínez, Arturo Centeno-Chalé, Emanuel Hernández-Núñez, Iván Velázquez-Abunader |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Flatfish Fluorescence spectrometry Polycyclic aromatic hydrocarbon Zoology Bioconcentration Flounder 010501 environmental sciences Biology Oncomegas wageneri 010603 evolutionary biology 01 natural sciences Fish Diseases chemistry.chemical_compound Mexican flounder Contamination Fish Parasitology - Original Paper Animals Parasite hosting Polycyclic Aromatic Hydrocarbons 0105 earth and related environmental sciences chemistry.chemical_classification Gulf of Mexico Larva General Veterinary Bioindicator General Medicine biology.organism_classification Bioaccumulation Parasite Spectrometry Fluorescence Infectious Diseases chemistry Insect Science Cestoda Pyrene Parasitology |
| Zdroj: | Parasitology Research |
| ISSN: | 1432-1955 0932-0113 |
| Popis: | The concentrations of polycyclic aromatic hydrocarbon metabolites (PAHm) and their bioconcentration factors (BCF) were determined in the larval stages of the cestode Oncomegas wageneri, recovered from the intestine of the Mexican flounder Cyclopsetta chittendeni, in the southern Gulf of Mexico. The PAHm concentrations in O. wageneri were measured using fixed-wavelength fluorescence spectrometry and compared with PAHm concentrations in host bile. Oncomegas wageneri PAHm concentrations were markedly higher than those in host tissues. The highest BCF values were obtained for 1-hydroxypyrene (OHP) and benzo(a)pyrene (BaP). Using a General Linear Model, a significant negative relationship was found between O. wageneri PAHm concentrations (as response variable) and the number of O. wageneri and oil well proximity. Low BCF values and PAHm concentrations in C. chittendeni correlated positively with O. wageneri PAHm concentrations. In contrast, high BCF values for PAHm concentrations in C. chittendeni had a negative association with O. wageneri PAHm concentrations. This study provides the first evidence of the presence of PAHm in intestinal larval cestodes of marine flatfishes, demonstrating levels of PAHm that were higher than levels in their hosts. |
| Databáze: | OpenAIRE |
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