Feeding characteristics of Neogobis caspius in the south west coastline of the Caspian Sea (Gilan
Description: B.3 and Chi Roos Bin Saad4
1- Iranian Fisheries Research Organization, P.O.Box: 14155-6116 Tehran, Iran
2-Iranian Fisheries Organization, Gilan Fisheries Department, P.O.Box:15156 Rasht, Iran
3- Faculty of Agricultural and Natural Science, Gorgan University, P.O.Box: 49165-386, Gorgan, Iran
4- Faculty of Agriculture, University of Putra, No. 43400, Serdang, Selangor, Malaysia
*Corresponding author's email: a_sarpanah@yahoo.com
Abstract: Neogobius caspius is an endemic species of the Caspian Sea which plays an important role in food chain as a predatory fish. The main aim of this study was to investigate selected feeding characteristics of Neogobius caspius in the south west coasts of the Caspian Sea. Monthly sampling was carried out using a bottom trawler at three stations (Astara, Anzali and Chabuksar) in three depths (0-5, 5-10 and 10-15m) on a monthly basis from October 2004 to September 2005. Relative gut length (RLG) was less than one suggesting that this species is carnivorous. RLG was significantly lower in older fish but gut length was longer (P<0.05). Intensity of fullness was below the favorite degree (IF<400) from October to March, however, it was higher (400
Wednesday 6 May 2015
Author: Sarpanah Sarkohi A.1; Ghasemzadeh, G.R.2; Nezami, S.A.1; Shabani, A.3; Christianus, A.4; Shabanpour
KeyWord: Neogobius caspius, Feeding characteristics, Relative gut length, Food preference, Caspian Sea, Iran
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