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Geosciences 2018, 8(11), 385; https://doi.org/10.3390/geosciences8110385

Is the Kornati National Park Still an Acceptable Reference Area for Environmental Studies?

1
Baznikova ulica 14, 1000 Ljubljana, Slovenia
2
Department of Environmental Sciences, Institute Jožef Stefan, Jamova 39, 1000 Ljubljana, Slovenia
3
Department of Ecology, Agronomy and Aquaculture, University of Zadar, Trg Kneza Višeslava 9, HR-23000 Zadar, Croatia
4
ZAG—Slovenian National Building and Civil Engineering Institute, Dimičeva ulica 12, 1000 Ljubljana, Slovenia
5
Department of Geology, Faculty of Natural Sciences and Engineering, University of Ljubljana, Aškerčeva 12, 1000 Ljubljana, Slovenia
*
Author to whom correspondence should be addressed.
Received: 24 August 2018 / Revised: 16 October 2018 / Accepted: 18 October 2018 / Published: 23 October 2018
(This article belongs to the Special Issue Geochemical Equilibrium and Processes in Seawater)
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Abstract

The Kornati National Park (Croatia) is considered an environment with minimal anthropogenic input. The purpose of this study was to determine the isotopic characteristics of the sediment and muscle tissues of the banded dye-murex Hexaplex trunculus. We selected locations in the park according to their estimated risk of anthropogenic pollution (large, lower, and minimal). Isotopic analyses of the sedimentary organic carbon (δ13Corg values) showed that the sedimentary organic matter in locations with P. oceanica meadows (Piškera, Vrulje) was enriched in 13C compared to that of locations with the influx of terrestrial organic matter. The δ13C and δ15N values of the muscle tissues of H. trunuclus were the highest in the two locations with the highest possible anthropogenic impact (−14.47‰ and −15.66‰ for δ13Corg, +8.87‰ and +10.4‰ for δ15N). The high δ values may indicate the presence of the pigment indirubin (C16H10O2N2) and other derivatives that cause the purple coloration but are also elevated because of the discharge of untreated sewage from a nearby marina and village. View Full-Text
Keywords: Kornati National Park; marine sediment; banded dye-murex Hexaplex trunculus; stable isotopes; carbon and nitrogen Kornati National Park; marine sediment; banded dye-murex Hexaplex trunculus; stable isotopes; carbon and nitrogen
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Ilenič, A.; Lojen, S.; Župan, I.; Šarić, T.; Šikić, Z.; Vrhovnik, P.; Dolenec, M. Is the Kornati National Park Still an Acceptable Reference Area for Environmental Studies? Geosciences 2018, 8, 385.

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