Changes in Adriatic ichthyofauna : selected species of fish, their socioeconomic relevance and possible influence on ecosystem of Adriatic seaudud

摘要

The purpose of this thesis is to examine the salient topic of new fish species found in the Adriatic Sea, describe their biology and possible impact on the ecosystem. I will highlight the socio-economic importance of certain fish species. Furthermore, I will focus on climate impact as well as anthropogenic factors that cause migration in fish species towards the Mediterranean and the Adriatic Sea. Throughout the thesis, I will try to disclose information on the very important topic of settlement of new fish species that will, in turn, affect ecosystems in the future and will consequently be the subject of interest of numerous experts in marine biology, ecology and genetics. Previous research on foreign species in the Adriatic Sea referred mainly to the systematics and taxonomy of allochthonous fish species. New fish species are also found in the Slovenian part of the Adriatic, the northernmost part of the Adriatic Sea. Future research on new fish species in the Adriatic will be important primarily from a socio-economic, ecological and genetic perspective. Some new fish species have been spotted in the Adriatic Sea several times and, in the future, this will be either important or harmful from the socio-economic point of view. For some fish species, we can predict their impact on the ecosystem based on the consequences suffered by the ecosystem of the Mediterranean Sea. Climate change and anthropogenic impact will play a major role in the spread of new fish species toward the Adriatic Sea in the future.