Document of bibliographic reference 350809
BibliographicReference record
- Type
- Bibliographic resource
- Type of document
- Journal article
- BibLvlCode
- AS
- Title
- Effects of benzo(a)pyrene on meiobenthic assemblage and biochemical biomarkers in an Oncholaimus campylocercoides (Nematoda) microcosm
- Abstract
- A microcosm experiment was carried out to determine how benzo(a)pyrene (BaP) may affect marine meiofauna community, with a main emphasis on nematode structure and functional traits. Three increasing concentrations of BaP (i.e. 100, 200 and 300 ng/l, respectively) were used for 30 days. The results revealed a gradual decrease in the abundance of all meiobenthic groups (i.e. nematodes, copepods, amphipods, polychaetes and oligochaetes), except for isopods. Starting at concentrations of 200 and 300 ng/l BaP, respectively, significant changes were observed at community level. At taxonomic level, the nematode communities were dominated at the start of the experiment and also after being exposed or not to BaP by Odontophora villoti, explicable through its high ecologic ubiquity and the presence of well-developed chemosensory organs (i.e. amphids), which potentially increased the avoidance reaction following exposure to this hydrocarbon. Moreover, changes in the activity of several biochemical biomarkers (i.e. catalase ‘CAT’, gluthatione S-transferase ‘GST’, and ethoxyresorufin-O-deethylase ‘EROD’) were observed in the nematode species Oncholaimus campylocercoides, paralleled by significant decreases in CAT activity for non-gravid females compared to controls at concentrations of 25 ng/l BaP and associated with significant increase in GST and EROD activities for both types of individuals.
- WebOfScience code
- https://www.webofscience.com/wos/woscc/full-record/WOS:000707311800027
- Bibliographic citation
- Hedfi, A.; Ali, M.B.; Noureldeen, A.; Almalki, M.; Rizk, R.; Mahmoudi, E.; Plavan, G.; Pacioglu, O.; Boufahja, F. (2022). Effects of benzo(a)pyrene on meiobenthic assemblage and biochemical biomarkers in an Oncholaimus campylocercoides (Nematoda) microcosm. Environm. Sc. & Poll. Res. 29(11): 16529-16548. https://dx.doi.org/10.1007/s11356-021-16885-w
- Topic
- Marine
- Is peer reviewed
- true
Authors
- author
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- Name
- Amor Hedfi
- author
-
- Name
- Manel Ben Ali
- author
-
- Name
- Ahmed Noureldeen
- author
-
- Name
- Mohammed Almalki
- author
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- Name
- Roquia Rizk
- author
-
- Name
- Ezzeddine Mahmoudi
- author
-
- Name
- Gabriel Plavan
- author
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- Name
- Octavian Pacioglu
- author
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- Name
- Fehmi Boufahja