Does fish reproduction and metabolic activity influence metal levels in fish intestinal parasites, acanthocephalans, during fish spawning and post-spawning period?

Filipović Marijić, Vlatka; Vardić Smrzlić, Irena; Raspor, Biserka (2014) Does fish reproduction and metabolic activity influence metal levels in fish intestinal parasites, acanthocephalans, during fish spawning and post-spawning period?. Chemosphere, 112 . pp. 449-455. ISSN 0045-6535

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Abstract

Application of fish intestinal parasites, acanthocephalans, as bioindicators in metal exposure assessment usually involves estimation of their metal levels and bioconcentration factors. Metal levels in parasite final host, fishes, are influenced by fish physiology but there is no data for acanthocephalan metal levels. Gastrointestinal Zn, Fe, Mn, Cd, Ag levels in European chub (Squalius cephalus L.) from the Sava River were significantly higher during chub spawning (April/May) compared to the post-spawning period (September). In acanthocephalans (Pomphorynchus laevis and Acanthocephalus anguillae) significantly higher metal levels during chub spawning were observed only for Zn in P. laevis. Bioconcentration factors were twice as high for Fe, Mn, Ag, Pb in the post-spawning period, probably as a consequence of lower gastrointestinal metal levels in fish rather than metal exposure. Therefore, bioconcentration factors should be interpreted with caution, due to their possible variability in relation to fish physiology. In addition, gastrointestinal Cu, Cd and Pb levels were lower in infected than uninfected chub, indicating that metal variability in fishes might be affected by the presence of acanthocephalans.

Item Type:	Article
Additional Information:	This study was financially supported by the Ministry of Science, Education and Sport of Republic Croatia (Project No. 098-0982934-2721). The authors sincerely thank EU FP6 SARIS Project participants for valuable help in the field work and Dr. Nevenka Mikac, Dr. Vibor Roje and Dr. Zeljka Fiket for useful advices concerning metal determination on HR ICP-MS and Dr. Zrinka Dragun for valuable help for metal determination on AAS.
Uncontrolled Keywords:	European chub; Pomphorynchus laevis; Acanthocephalus anguillae; essential and toxic metals; bioconcentration factors; fish physiology
Subjects:	NATURAL SCIENCES > Geology
Divisions:	Division for Marine and Enviromental Research
Projects:	Project title Project leader Project code Project type Patologija organizama iz voda u odnosu na zagađivala i akvakulturu- Damir Kapetanović 098-0982934-2752 MZOS Stanične promjene u vodnih organizama pobuđene metalima- Marijana Erk 098-0982934-2721 MZOS
Depositing User:	Vlatka Filipović Marijić
Date Deposited:	03 Sep 2020 09:16
URI:	http://fulir.irb.hr/id/eprint/3293
DOI:	10.1016/j.chemosphere.2014.04.086

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