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Development culture, based on the dominance of man over nature and the built over the natural, continues to predominate. To take one example, the demands of an ever-increasing number of amateur fishermen are satisfied by financing the continuous re-stocking of rivers with juvenile or small-size fish while ignoring the extinction of native species, and the damage caused by the introduction of non-native...
The occurence of 0+ juvenile fish was observed using a point abundance sampling strategy in non-flooded borrow pits, flooded borrow pits, oxbows and backwaters in the flood plain of the River Dyje in August 1998 and 1999. The season of 1998 was characterized by a shorttime managed flooding compared to a long-time managed flooding in 1999. Totally we registered the occurrence of 19 species of 0+ juvenile...
Biosphere Reserve “Puszcza Kampinoska” is situated in the Vistula river valley northwest of Warsaw. It covers an area of inland dunes and wetlands. From 1960s a continual decrease of groundwater level has been observed, threatening valuable ecosystems. Natural and anthropogenic reasons of this process are distinguished. A strategy to restore the groundwater levels in the Reserve has to be elaborated...
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