Metal content in muscle, gills and liver tissues of the northern pike Esox lucius (L. 1758) of three age classes in the irrigation channel of the Danube river – case study.
2019
Document Type:
Conference object (Published version)
,
© 2019 by the Institute of Marine Biology, University of Montenegro
Metadata
Show full item recordAbstract:
Northern Pike is the top piscivore and phytophilic species strongly dependent on backwaters and vegetated river areas for spawning and recruitment. The aim of the present
study was to examine dependence between metal concentrations (As, Cr, Cd, Co, Cu, Fe,
Sr, Pb, Zn, Hg) and examined fish tissues, as well as of fish age. In June 2013, 26 samples
of pike have been collected using electrofishing (HONDA 1,2кW, 6 А). Collection was
performed in irrigation Channel Vizelj, runs through the suburban section of Belgrade.
The content of heavy metals was determined in samples of fish tissues of different ages
using inductively coupled plasma mass spectrometry (ICP-MS). Age analysis indicated
that fish belonged to age classes from 0+ to 2+. Metals As, Cd, Co and Pb were not detected in analyzed fish tissues, and Cu was not detected in muscle tissue of 2+ and 1+
specimens. The majority of the analyzed elements were found in minimal concentrations
in the muscle, except 0+ specimens with high Fe concentrations. Gills of all analyzed age
classes were loaded with very high concentrations of Fe and Sr. In gills of 1+ and 2+ fish
were also detected high Zn concentrations while in 0+ fish were detected Fe. The highest
concentrations of Cu were detected in liver of all fish age classes. The youngest age class
(0+) was differentiated by higher concentrations of Cr, Cu, Fe, Sr and Zn in muscle tissue,
while the oldest age class was mainly differentiated by higher concentrations for Zn and
Hg in gills.
Funding / projects:
- Fishes as water quality indicators in open waters of Serbia (RS-MESTD-Basic Research (BR or ON)-173045)
- Monitoring and Modeling of Rivers and Reservoirs (MORE) - Physical, Chemical, Biological and Morphodynamic Parameters (RS-MESTD-Technological Development (TD or TR)-37009)
In:
- Đurović M, editor. Book of Abstracts: International Conference "Adriatic Biodiversity Prorection - AdriBioPro 2019"; 2019 Apr 7-10; Kotor, Montenegro. Kotor: University of Montenegro, Institute of Marine Biology; 2019. p. 111.