Читать книгу Walking in Bulgaria's National Parks. Pirin, Rila and Central Balkans National Parks онлайн

45 страница из 63

Butterflies

The butterflies of the Central Balkan national park have been the focus of scientific research for almost 100 years. So far almost 60 species have been recorded in the region, and it has recently been recognised as a Prime Butterfly Area. Important species found within the national park include Apollo (Parnassius apollo), clouded Apollo (Parnassius mnemosyne), large blue (Maculinea arion), false Eros blue (Polyommatus eroides), purple emperor (Apatura iris), eastern large heath (Coenonympha rhodopensis), lesser spotted fritillary (Melitaea trivia), bog fritillary (Boloria eunomia), and a variety of high mountain ringlets such as Bulgarian ringlet (Erebia orientalis), woodland ringlet (Erebia medusa), almond-eyed ringlet (Erebia alberganus), Nicholl’s ringlet (Erebia rhodopensis), water ringlet (Erebia pronoe) and black ringlet (Erebia melas).

Fish

Lacking lakes or other large areas of open water, the variety of fish found within the Central Balkan national park is rather limited, with only six species recorded in the region. Most typical are the brown trout (Salmo trutta fario) and the minnow (Phoxinus phoxinus), while the miller’s thumb (Cottus gobio), Balkan barbel (Barbus meridionalis petenyi) and rainbow trout (Oncorhynchus mykiss) have been reported in rivers at the periphery of the national park. There is also a record of brook trout (Salvelinus fontinalis) from the river Zavodna from the 1970s, but this species has not since been recorded in the region.