Fish (latin Pisces) are cold-blooded vertebrates, prevailing in fresh waters and seas. Fish became prevailing vertebrates in water due to advanced features (50% of all known vertebrate species – around 25000). There are two classes of fish remaining until now: cartilaginous and bony. Almost all cartilaginous fish can be found in seas, while fresh waters are habitat for 40% of the world fish.
The most interesting and the most valuable showpieces are being exposed. The exposed collections are important from historic, cultural, and scientific viewpoints. Traditional principle of evolutionary exhibiting is being combined by revealing deeper connection with natural environment. Dioramas, such as (“Fish of the lake”, “Logerhead“) are more attractive way of presenting animal taxidermies.
Fish exposition is as well interesting due to historic showpieces reminding of the past (1905 – 1931), which have been collected by the founder of the museum T. Ivanauskas. Just to name a few: 2,8 meter long swordfish (Xiphias gladius), red-bellied piranha (Serrasalmus nattereri), common dragonet (Callionymus lyra), five-beard rockling (Motella mustela). Exposition contains impressive size and exotic look fish – silver carp (Hypophthalmichtys molitrix), Atlantic wolffish (Anarhichas lupus), the only representative from muraenidae family – the ribbon eel (Rhinomuraena quaesita), as well as the European sea sturgeon (Acipenser sturio), which is listed in IUCN Red List of Threatened Species.