부산대학교 도서관

The endangered European eel biological life cycle consists of five stages of metamorphosis: leptocephalus, glass eel, elver, yellow eel, and silver eel. Montenegro has limited data on biological and population parameters of glass eel e.g. accurate time and the number of migration waves, condition, rate of survival, recruitment success, etc. Since the early 1980s, the occurrence of glass eels in European waters has decreased significantly. Accordingly, after almost 25 years the first research was conducted on glass eel in the river Bojana (Montenegro). This study was done during the winter and spring of 2021 and 2022. Stage of pigmentation and condition were examined on 50 registered individuals of glass eel. Four pigmentation stages: VIA0, VIA1, VIA2, and VII were registered. Its biometric characteristics indicate that one migration wave was registered with the domination of stage VIA1. This research indicates the necessity of further research on the glass eel, as well as the threats they are facing in the river Bojana and another small river in the Adriatic catchment of Montenegro, with the aim of establishing the management plan for better protection conservation of this important but vulnerable species. [ABSTRACT FROM AUTHOR]