Otolith fingerprints reveals potential pollution exposure of newly settled juvenile Sparus aurata (CROSBI ID 285699)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Vrdoljak, Dario ; Matić-Skoko, Sanja ; Peharda, Melita ; Uvanović, Hana ; Markulin, Krešimir ; Mertz-Kraus, Regina
engleski
Otolith fingerprints reveals potential pollution exposure of newly settled juvenile Sparus aurata
Coastal ecosystems are increasingly threatened by a wide range of human activities. Fish otolith chemistry, by creating a unique specific signature, can be used as a natural tag for determining life stage dispersal, spatial connectivity and population structure. In this study, we tested whether differences in otolith composition among juveniles of gilthead sea bream, Sparus aurata, could enable their proper allocation to polluted areas based on higher concentrations of elements related to contaminants. Otoliths were embedded, sectioned and analysed by LA-ICP-MS in line scan mode. Multivariate analysis confirmed clear separation between sites and elements. Samples from the site under the strongest anthropogenic impact from industrial and agricultural river input were characterized by higher values of Pb/Ca and Zn/Ca. However, these relatively low values likely do not have a negative effect on S. aurata recruitment, though they could serve for identifying the contribution of polluted nurseries to stock dynamics.
Juveniles, Otoliths chemistry, Sparus aurata, Nurseries, Pollution, Adriatic Sea
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Podaci o izdanju
160
2020.
111695
11
objavljeno
0025-326X
1879-3363
10.1016/j.marpolbul.2020.111695