The Balkan Lake Ohrid and Its Living World

Acad Aegean Lake Albania ancient autochtonous balcanicus Balkan lakes basin of Ohrid belonging benthic biogeographical biotope bottom calcareous Candona Carinogyraulus characterized CVIJIĆ deep depth differentiated Dinaric region Dinarides Dreissensia ecological effluent endemic forms endemic species evolution fauna fish Fonticola fossil freshwater gasteropods genera genus GEORGEVITCH GJORGJEVIĆ Gyraulus HADŽIŠČE hypolimnetic hypolimnion Ilyodrilus ind/m² intralacustrine KARAMAN karstic karstic poljes Korča lacustrine Lake Baikal Lake Ohrid Lake Prespa larvae layers littoral sources littoral zone living world Lumbricida macedonica maximum of density Mediterranean mg/l Neodendrocoelum neogene observed ochridanus ochridensis Ohrid basin Ohrid Lake Ohrid region Oligochaeta period phytoplankton plankton Pliocene Pontian populations profundal zone Pseudamnicola Pyrgula RADOMAN relict forms relictary repartition represented resp Salmo letnica salmonids Salmothymus season shore Skopje Skutari spawning STANKOVIĆ studied Stylodrilus sublittoral zone summer surface tectonic temperature thermal thermic triclads trout Tubifex typical upper vegetation vertical distribution winter zooplankton