Polycyclic aromatic hydrocarbons in the cestode Oncomegas wageneri parasite of Mexican flounder Cyclopsetta chittendeni
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. Th...
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Published in | Parasitology research (1987) Vol. 119; no. 3; pp. 903 - 913 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Berlin/Heidelberg
Springer Berlin Heidelberg
01.03.2020
Springer Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | 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. |
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Bibliography: | Section Editor: Guillermo Salgado-Maldonado |
ISSN: | 0932-0113 1432-1955 |
DOI: | 10.1007/s00436-019-06597-z |