| Article |
|---|
| Article name |
Food of Siberian Stone Loach Barbatula toni (Dybowski, 1869) from the Rivers of Zabaikalsky Krai |
| Authors |
Gorlachyova Y.P. Candidate of Science (Biology), senior research assistant, gorl_iht@mail.ru |
| Bibliographic description |
|
| Section |
Zoology |
| UDK |
597.556. |
| DOI |
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| Article type |
|
| Annotation |
Food of Siberian stone loach Barbatula toni from different water streams of Zabaikalsky
Krai referred to Upper-Amur basin is characterized in the article.
Upper water streams patches are characterized with boulder pebble ground and law water
temperature. The assessment of fish body condition, gastro-intestinal tract degree of filling was
undertaken and the average weight value of nutritional ingredient was determined. The main food
spectrum of Siberian stone loach generally constituted amphibiotic organism groups (mayfly,
Simulium galeratum, caddis worm larvae and gnats). The main part in stone loach feeding or
filling belonged to chironomids mayflies. Differences in food of Siberian stone loach from upper
and lower streams of the Kadalinka River were defined. Nutritional composition of the stone loach
from lower stream contained amphipoda coming 500 m. upstream to the Kadalinka River from
the lake Kenon. Feeding habits of the stone loach were defined with food potential development
in mountain and semi-mountain river stretches. Feeding rate was sharply decreased in winter
period as indicated by a large amount of fish with empty gastro-intestinal tract. In this respect, fish
condition factor decreased considerably from 0,9 till 0,7.
|
| Key words |
Siberian stone loach, nutritional composition, fish condition factor, food/feeding,
mayfly and chironomids larvae |
| Article information |
|
| References |
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| Full article | Food of Siberian Stone Loach Barbatula toni (Dybowski, 1869) from the Rivers of Zabaikalsky Krai |
