Impact evaluation of the industrial activities in the Bay of Bakar (Adriatic Sea,Croatia): Recent benthic foraminifera and heavy metals |
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| Institution: | 1. Department of Geology and Environmental Sciences, Ben Gurion University of the Negev, Beer Sheva 84105, Israel;2. Geological Survey of Israel, Jerusalem 95501, Israel;1. Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia;2. Laboratory Department, Exploration Sector, INA-Industrija nafte d.d., Lovinčićeva 4, 10002 Zagreb, Croatia;3. Department of Environmental Sciences, Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia;4. Faculty of Environmental Sciences, University of Nova Gorica, Vipavska 13, 5000 Nova Gorica, Slovenia;5. Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb, Pierottijeva 6, 10000 Zagreb, Croatia |
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| Abstract: | The Bay of Bakar is one of the most heavily polluted bays at the Eastern Adriatic. Three major industrial companies potentially endanger the bay. The concentration of major, minor and trace elements in surface sediments from thirteen stations was discussed in relation to the sediment type and foraminiferal assemblages. The distribution of major elements in the bay is influenced by geological nature of surroundings. Heavy metal distribution depends on pollution sources and on amount of mud fraction: fine-grained sediments are enriched by them in comparison with coarse-grained ones. Different sediment quality criteria complicate the pollution assessment in the bay. Heavy metal concentrations generally fall into allowed depositional values for marine environments; only area in front of the coke plant and the City of Bakar harbor is heavily polluted. Stress-tolerant foraminiferal species dominate at stations with higher concentrations of heavy metals and coarse-grained sediments consist of larger number of epifaunal taxa. |
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| Keywords: | Pollution Major minor and trace elements Foraminifera Sediment Adriatic Sea |
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