Jez (Leuciscuc idus)
Jez je naša autohtona česta vrsta što pokazuju ostala hrvatska imena koja su mu dana u različitim krajevima (jal, jalac, jas, jaz, jazava, jazika, jes, jeza, jezovka, jiz, udovica). Ima mala usta. Za razliku od ostalih peraja koje su crvenkaste, repna i hrptena su sivomodre. Osim u našem Dunavskom slivu živi u bistrim, hladnim i dubokim rijekama i jezerima sj. Europe. Naraste do 4 kg i 70 cm u duljinu, a hrani se crvima ličinkama i vodenim kukcima.
Uzrok ugroženosti je regulacija i onečišćenje vodotoka te nestanak prikladnih, prirodnih područja za mriješćenje što utječe na brojnost populacija. Bilo kakva pregrada na rijekama sprječava migracije radi razmnožavanja i prehrane. Kako često zna ući u poplavnu zonu nestanak močvarnih i poplavnih područja dovodi do ugroženosti.
Lovi se u proljeće pri dnu i kasnu jesen na tanke crvene gliste ili na skakavce te na tijesto ili na umjetnu mušicu kao i na male umjetne mamce.
Ide (Leuciscuc idus)
The ide is our autochthonous species, as shown by other Croatian names given to it in different parts (jal, jalac, jas, jaz, jazava, jazika, jes, jeza, jezovka, jiz, udovica). Its elongated body is marked by a dark gray back, a white belly, and tiny scales on silvery sides. It has a small mouth. Unlike other fins that are reddish, the tail fin and the dorsal fin are gray-blue. Except in our Danube basin, it lives in clear, cold and deep rivers and lakes of northern Europe. It grows up to 4 kg and 70 cm in length, and feeds on worm larvae and aquatic insects.
The cause of endangerment is the regulation and pollution of watercourses and the disappearance of suitable, natural spawning areas, which affects population size. Any barrier on the rivers prevents migrations for reproduction and nutrition. As it often enters the flood zone, the disappearance of wetlands and floodplains leads to endangerment.
It is caught in the spring at the bottom and in late autumn with thin red earthworms, locusts, dough or artificial flies as well as small artificial baits.