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New records of the early life history stages of louvar, Luvarus imperialis Rafinesque, 1810, from the eastern Adriatic

Louvar, Luvarus imperialis Raf., 1810, is a very rare species in the Adriatic Sea. Two specimens, hystricinella and astrodermella stages, were caught in the central Adriatic in June and December 1994. The records of hystricinella stage is the first of the eastern Adriatic. The main morphometric and meristic data are given. The June record shows that this species probably spawn in the eastern Adriatic. The spreading of the louvar in the Adriatic is probably related to the Adriatic ingressions, which are expected to be confirmed later. The status of the louvar needs to be evaluated on a continous basis because it is becoming incresingly apparent that uncommon species, and particularly those on the edge of their distribution, can be indicator of environmental change.

Luvarus imperialis; hystricinella; astrodermella; records; eastern Adriatic

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