Page 33 - 몽골 어류도감 편집본

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

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Pseudaspius leptocephalus (Pallas, 1776) Pseudorasbora parva (Temminck et Schlegel, 1846)

redfin topmouth minnow

Korean name Mongolian name Sample number Korean name Mongolian name Sample number
Улаан живэрт NNIBR-P36615 참붕어 Давжаа сугас NNIBR-P36618

Form Form
Body elongate, compressed. Head long, forehead slim, snout long. Mouth terminal, wide; lower Body yellowish brown, sides light. Body depth slightly exceeding head length. Body sides of juveniles
jaw with a small tubercle, projecting beyond the upper jaw. No teeth in the jaw. Back grayish brown, with black thin stripes, and adults without stripes. In adults scales edged grayish. Mouth superior
sides silvery, abdomen lighter. Dorsal fin reddish, other fins red. Gill rakers short, wide spread, 8-11. transverse, very small. Barbels and abdomen keel are absent. Pelvic fins origin under the 1st or the 2nd
Pharyngeal teeth are in two rows, cylindrical. have formula 2.4-4.2. Dorsal fin rays iii 6-7. Anal fin rays iii branched rays of dorsal fin. Gill rakers rudimentary. Lower lip thin. Scales large. Dorsal fin rays iii 7. Anal
8-9. Lateral line with 91-102 scales. fin rays iii 6. Lateral line complete, with 35-38 scales.
Distribution Distribution
In Mongolia: in Rivers Onon, Kherlen and Khalkh; Lake Buir. Outside Mongolia: Amur drainage, Sakhalin In Mongolia: in Rivers Onon, Kherlen, Ulz, Khalkh, and Orshuun and in Lake Buir. Outside Mongolia:
Island. from Amur drainage to northern Vietnam; Korea, China, Japan, Taiwan, Hainan.

Ecological characteristics Ecological characteristics
Inhabits rivers. Around a year occurs from upper reaches to lower reaches of rivers. Wintering in lakes. Inhabits slow flowing rivers with sand and mud bottom, and aquatic vegetation, and shallow water of
Body length reach up to 60 cm. Spawning from May to June. Migrates to upper reaches of rivers for lakes. Small fish, body length usually 8 cm. Forms schools. Spawning from June to July. Mature males
spawning. Females lay eggs on sand and gravel. Feeds on small fish such as gudgeons and minnows. become almost black, they have sharp horny tubercles under th eyes. Feeds on benthic insect larvae
benthic insect larvae and sometimes on algae.Feeds mainly on benthic invertebrates. and zooplankton.

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