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Brown and brook trout populations in the Tatra Mountain lakes (Slovakia, Poland) and contamination by long-range transported pollutants

AutorDočkalová, Kateřina; Holubcová, Jana; Bacardit, Montserrat ; Bartrons, Mireia ; Camarero, Lluís ; Gallego, Eva; Grimalt, Joan O.; Hardekopf, David; Hořická, Zuzana; Rosseland, Bjørn Olav; Tátosová, Jolana; Stuchlík, Evzen
Palabras claveTatra Mountains
Long-range transport
Fish growth
Salmo trutta
Salvelinus fontinalis
Ferox
POPs
Trace metals
Mountain lakes
Fecha de publicación2015
EditorSpringer
CitaciónBiologia 70 (4): 516-529 (2015)
ResumenFish living in the extreme conditions of the Tatra Mountain lakes were evaluated from a biological point of view as well as an important biomarker of long-range transported pollutants. In Veľké Hincovo pleso and in Morskie Oko, specimens of brown trout (Salmo trutta) of extraordinarily advanced age were found (ages of 18+ and 17+ years, respectively). The capture of a 17+ year-old brown trout in Morskie Oko (2400 g, 540 mm) indicated the presence of the so-called ferox life strategy. The growth of brook trout (Salvelinus fontinalis) was faster than the growth of brown trout in the younger year classes, and while the growth of brook trout stopped after the age of 5+, the growth of brown trout continued. Concentrations of long-range transported pollutants (HCHs, HCB, DDTs, PCBs, PBDEs, and trace metals) in the Tatra Mountain fish were mostly associated with fish age, body weight and length, type of fish tissue, and lake altitude. Persistent organic pollutants (POPs) in fish muscle were dominated by PCBs 138, 153, 180, and p,p’-DDE. Conversely, PBDEs concentrations ranged at substantially lower levels compared to other POPs. Altitude correlated significantly with concentrations of a-HCH, HCB, p,p’-DDT, p,p’-DDE, and with PCBs 28 and 52. The highest contents of trace metals were found in kidney and liver samples, with higher concentrations in Veľké Hincovo pleso than in Morskie Oko. The overall highest trace metal concentration levels were found for Fe, Cu, and Zn. In comparison with other European mountain lakes, the Tatra Mountain lakes are among the more contaminated.
Descripción14 páginas, 6 tablas, 7 figuras
Versión del editorhttp://dx.doi.org/10.1515/biolog-2015-0052
URIhttp://hdl.handle.net/10261/120939
DOI10.1515/biolog-2015-0052
ISSN0006-3088
E-ISSN1336-9563
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