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. ...after almost 25 years the first research was conducted on glass eel in the river Bojana (Montenegro). Data of the Fulton's condition factor (CF) of the analyzed specimens was calculated from the W (g) and TL (cm) using the formula according to Fulton (1904). Since the number of registered individuals in 2021 did not meet the statistically valid number of individuals for making relevant conclusions about their condition and quality, their basic biometric characteristics will be presented since these are the first findings and descriptions of these individuals after almost 25 years, and a more detailed analysis was done on a sample from 2022. In Europe, glass eels enter estuaries mostly from October to April/May (Elie, 1979). Since Montenegro has limited data on biological and population parameters of glass eels for almost 25 years the first research was conducted on glass eels in the river Bojana (Montenegro).