| Tartalmi leírás: |
108 years after Trgovčić (1908) authors made a revised list of
fish species found in rivers and streams of the Lika region.
Throughout the 8 years of investigation a total of 31 species
of freshwater fish were recorded, of which only eight are
indigenous for this area, for two species the origin is not
known, and the remaining 21 species are introduced by
anthropogenic activity over the last 100 years. This represents
the over-domination of introduced species by the astonishing
300%. All of this increase in numbers causes significant
increase in biomass and changes the naturally oligotrophic
ecosystem, which might lead to rapid eutrophication and
increase of water temperature. Furthermore, induced changes in
the system make the habitat more suitable for introduced
cyprinid fish, which again causes the increase of biomass
production. Endemic fish species are retreating into upper
parts of small tributaries and underground cave systems. The
present research indicates species Delminichthys jadovensis, D.
krbavensis, Telestes fontinalis and T. croaticus as real
stygophiles, which makes them unique on the European continent.
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| Azonosító: |
Jelić, Dušan and Špelić, Ivan and Žutinić, Petar (2016) Introduced species community over-dominates endemic ichthyofauna of High Lika Plateau (Central Croatia) over a 100 year period. ACTA ZOOLOGICA ACADEMIAE SCIENTIARUM HUNGARICAE, 62 (2). pp. 191-216. ISSN 1217-8837
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