Volume 1, Issue 3 (6-2009)
3 2009, 1(3): 45-63 |
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Rajabi Nezhad R, Azari Takami G. A study of feeding habits of Caspian Shemaya (Shah – Koolee) Chalcalburnus chalcoides (Guldenstadt, 1772) in the Sefidrood river. 3 2009; 1 (3) :45-63
URL: http://jmb.ahvaz.iau.ir/article-1-100-en.html
URL: http://jmb.ahvaz.iau.ir/article-1-100-en.html
Fisheries department of Islamic Azad university – Bandar Anzali Branch
Abstract: (26399 Views)
Feeding of Shah – koolee which is one of the economical and popular fish in the northern part of Iran was studied in the area of the Sefidrood river. Carry out this research, 539fish were cought at selected stations from the scashore estuary to Kisum From April to August 2000 Intestinal content of sixty eight speciment in different sizes was collected and after primary biometry, their gastrointestinal system was removed and studied.
Relative gut length (R.L.G) was 0.74 and the special charactristics showed that the main food of Shemaya is zooplankton. The vacuity index (C.V) was 23.5 percent Which proves that Shemaya is among greedy fishes.
Instestinal examinations of Shan – koolee Shows that Three phytoplanktonal order including Crysophyta, Chlorophyta and Cyanophyta and two zooplankton order including Copepoda and Cladocera were the major food items consumed by this fish in Sefidrood river. In addition, some different organisms bigger than phytoplankton and zooplankton such as Chironmidae larvae and Gomphonaema were in its diet.
Studies of Shah-koolee migration in Sefidrood river shows that spawning is more important than feeding.
Keywords: Chalcalburnus Chalcoides, Gastrointestinal system, Feeding, Caspian sea, Sefidrood river, Iran
Type of Study: Research |
Subject:
Special
Received: 2014/01/31 | Accepted: 2014/01/31 | Published: 2014/01/31
Received: 2014/01/31 | Accepted: 2014/01/31 | Published: 2014/01/31
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