Page 38 - 몽골 어류도감 편집본

Freshwater Organisms in Pixels Fish of the Amur River List of fish

23 24

Squalidus chankaensis Dybowski, 1872 Barbatula toni (Dybowski, 1869)

Khanka gudgeon Siberian stone roach

Korean name Mongolian name Sample number Korean name Mongolian name Sample number
Ханхын гүрц NNIBR-P11463 종개 Шивэр сахалт эрээлж NNIBR-P36528

Form Form
Back light yellowish, scales on back with brown edged. Sides and belly light, on sides running silvery Body elongate. Head depressed. Mouth surround by 3 pairs of barbels. Lip massive. The caudal fin is
stripe. Fins light and spotless. Mouth terminal or subterminal. Barbels short. Pharyngeal teeth in two always shorter than the length of the head and emarginate. In dorsal and pelvic fins 2nd and 3rd rays
rows, have formula 2.5-5.3. Dorsal fin rays iii 7. Anal fin rays iii 6. Lateral line complete, with 36-41 longer. Coloration gray brown with dark spots, belly lighter than back. On the dorsal, caudal and pectoral
scales. Vertebrae 37-39. fins, dark spots. Scales cover the anterior part of body. Dorsal fin rays iii 7. Anal fin rays iii 5. Number of
vertebrates 41-47, gill rakers 10-12.
Distribution
In Mongolia: Lake Buir. Outside Mongolia: Amur drainage in Russia and China. Distribution
In Mongolia: Onon, Kherlen and Selenge drainages. Outside Mongolia: all rivers flowing to the Arctic
Ecological characteristics
Inhabits rivers with slow water, and lakes. Body length reach up to 10 cm. Spawning from June to July. and Pacific Oceans between the Ob and the Huang He.
Females lay eggs over bottom vegetation and any substrates. Feeds on larvae of chironomids and other Ecological characteristics
invertebrates. Cold water species. Inhabits rivers with high current velocity and gravel bottom. Body length reach up
to 16-18 cm. Spawning in May. Females lay eggs on gravel. Feeds on benthic invertebrates, mainly
insect larvae.

38 39