Biology and egg morphology of the Dalmatian barbelgudgeon Aulopyge huegeli, an endangered endemic species in Croatia

摘要: This paper describes patterns of annual and diurnal activity in the endangered endemic cyprinid Aulopyge huegeli from Croatia. The species is largely nocturnal. Spawning laboratory begins at temperatures 20°C. a rock gravel brood hider. female deposits eggs various fissures with special ovipositor. are whitish have diameter between 1.5 2 mm. zona radiata relatively thin (3.2–5.5 μm) provides necessary plasticity. surface covered an attaching substance short attachment extension around vegetal pole. correlates features spawning microhabitats. has very small micropyle which consists pit 7.5 μm canal 2.5 μm (micropyle type I).