engleski

Environmental state of the east Adriatic coastal waters

The Adriatic Sea is of exceptional importance for Croatian economy as a resource for fisheries, tourism, transport and other goods. For these and many other reasons it is important to control its ecological state and preserve its biodiversity. Croatian Environmental Protection Agency together with a number of institutions has organized collection of environmental data. The reports, data and graphs can be viewed at the web (http://jadran.izor.hr/azo/).The Institute of Oceanography and Fisheries Split (IOF) and Institute Ruđer Bošković, Rovinj (IRB), are in charge of marine data acquisition and IOF is in charge for the marine database. Here we present some of the results from the last few years collected at twenty east Adriatic coastal stations and one middle Adriatic open sea station. Discussed are oxygen saturation, nutrients, chlorophyll a concentrations, suspended matter and transparency. Statistical analysis for the period 2005-2009 is compared to the long-term mean/median values. High spatial and seasonal variability of the parameters is discussed in relation to location of the stations regarding possible anthropogenic impact. Connection to the hydrodynamics is also discussed. Correlations, PCA and other analysis gave some new indications of the relations among parameters.

Adriatic Sea ; marine environmental data ; statistical analysis

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