Copper is an essential nutrient at low concentrations, but is toxic to aquatic organisms at higher concentrations. In addition to acute effects such as mortality, chronic exposure to copper can lead to adverse effects on survival, growth, reproduction as well as alterations of brain function, enzyme activity, blood chemistry, and metabolism.
This swamp is also the home of the legendary Honey Island Swamp monster, which has from time to time been known as the Tainted Keitre. Honey Island Swamp is located on the Pearl River wildlife management area and managed by the Louisiana Department of Wildlife and Fisheries.
Brijuni Islands National Park. Brijuni Islands are situated near the city of Pula and represent the only National Park in Istria County. They were declared as National Park in 1983. With its 14 islands, 743,30 ha of area and water surface of 2652 ha (total are of 3395,00 ha), they represent the most indented and interesting islands in Istria.