Trace element bioaccumulation in the plumage of common blackbirds (Turdus merula Linnaeus, 1758) from Agigea, Romania

Author:

IACOB Diana1ORCID,PADURARU Emanuela1ORCID,BALTAG Emanuel-Ștefan2ORCID,GABOR Vicentiu-Robert3ORCID,JIJIE Roxana4ORCID,GACHE Carmen5ORCID,BREABAN Iuliana Gabriela3ORCID,RARINCA Viorica1ORCID,PLAVAN Gabriel5ORCID,NICOARA Mircea1ORCID

Affiliation:

1. Doctoral School of Geosciences, Faculty of Geography and Geology, Alexandru Ioan Cuza University of Iasi, No 20A, Carol I Avenue, Iasi, 700505, Romania

2. Marine Biological Station Prof. Dr. Ioan Borcea, Agigea, Alexandru Ioan Cuza University of Iasi, No 20A, Carol I Avenue, Iasi, 700506, Romania

3. Department of Geography, Faculty of Geography and Geology, Alexandru Ioan Cuza University of Iasi, No 20A, Carol I Avenue, Iasi, 700505, Romania

4. Department of Exact and Natural Sciences, Institute of Interdisciplinary Research, Alexandru Ioan Cuza University of Iasi, No 20A, Carol I Avenue, Iasi, 700505, Romania

5. Department of Biology, Faculty of Biology, Alexandru Ioan Cuza University of Iasi, No 20A, Carol I Avenue, Iasi, 700505, Romania

Abstract

The purpose of this research was to establish the baseline concentrations of thirteen trace elements (Cd, Co, Cr, Cu, Ni, Pb, Fe, Mg, Na, K, Sr, Ca, and Zn) in feathers of the common blackbird Turdus merula (n=9) at the Natura 2000 site “Marine Dunes from Agigea” (ROSCI0073). Both remiges and rectrices were pooled, and the quantification of trace elements was accomplished using two spectrometry analysis methods: high-resolution continuum source atomic absorption spectrometer with a graphite furnace (HR-CS GF-AAS) and flame atomic absorption spectrometer (FL-AAS). The concentration of Ca was the highest of the thirteen trace elements, registering at 209.9146±192.4098 µg·g-1 w.w., while Cd had the lowest concentration levels in feathers, 0.0243±0.0158 µg·g-1 w.w., respectively. However, the results obtained were significantly lower than those in the relevant literature. These findings suggest that the bioavailability of the analysed trace elements is minimal in our study area. Thus, it is imperative to conduct further research on the impact of these trace elements' accumulation and effects on avifauna in the Natura 2000 site “Marine Dunes from Agigea”.

Publisher

Editura Universitatii Alexandru Ioan Cuza din Iasi

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