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Paper Information

Journal:   JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY   FALL 2007 , Volume 9 , Number 3 (34); Page(s) 103 To 111.
 
Paper: 

IDENTIFICATION AND ESTIMATION OF THE POPULATION OF FISHES IN NAMROUD RIVER

 
 
Author(s):  JAZEBI ZADEH M.K., SHIRINABADI M.*
 
* FISHERY DEPARTMENT, TEHRAN NORTH BRANCH, ISLAMIC AZAD UNIVERSITY
 
Abstract: 

To identify and estimate the population of fishes in Namroud river (between Namroud Bridge and Tehran Gezel Breeding Center), a period of sampling was done in June, 2004, using an electro shocker. Sampling was done in one phase and in a zigzag over a length of 600 meters, and 43 fishes were hunted altogether. The results showed that the fishes were of 6 types:
Alburnoides bipunctatus (Bloch, 1782), Capoeta aculeata (Valencienns, 1844), Capoeta damascina (Valencienns, 1842), Leuciscus cephalus (Linnaeus, 1758), Nemacheilus bergianus ( Derzhavin, 1934) and Oncorhynchus mykiss (Walbaum, 1792).
The population estimation of each species was done based on their ratios in the sample. Considering the obtained species, type of river bed, and temperature and speed of water, it seems that the region under study should be considered as a Sub Mountain Zone according to Holcik-Hensel classification. Such regions have Barbel, Grayling, and Trout. These kinds of fishes are not only native to the region, but they have also come via the exit canal of Tehran Gezel Breeding Center and have survived due to suitable environmental conditions.

 
Keyword(s): FISH, KNOWLEDGE, ESTIMATING, NAMROUD RIVER, TEHRAN
 
References: 
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