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:: دوره 9، شماره 1 - ( 10-1388 ) ::
جلد 9 شماره 1 صفحات 127-140 برگشت به فهرست نسخه ها
Feeding characteristics of Neogobis caspius in the south west coastline of the Caspian Sea (Gilan Province)
چکیده:   (15796 مشاهده)

  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). I ntensity of fullness was below the favorite degree (IF<400) from October to March, however, it was higher (400N. caspius mainly fed on molluscs (Food preference, FP=100%), worms (FP=89%) and crustaceans (FP=74%), hence, this species is considered as euryphagus species.

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نوع مطالعه: پژوهشي | موضوع مقاله: aquaculture
دریافت: ۱۳۸۹/۴/۳۰ | پذیرش: ۱۳۹۴/۶/۲۲ | انتشار: ۱۳۹۴/۶/۲۲
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Sarpanah Sarkohi A, Ghasemzadeh G R, Nezami S A, Shabani A, Christianus A, Shabanpour B et al . Feeding characteristics of Neogobis caspius in the south west coastline of the Caspian Sea (Gilan Province). IJFS. 2010; 9 (1) :127-140
URL: http://jifro.ir/article-1-28-fa.html

Feeding characteristics of Neogobis caspius in the south west coastline of the Caspian Sea (Gilan Province). مجله علوم شیلاتی ایران. 1388; 9 (1) :127-140

URL: http://jifro.ir/article-1-28-fa.html



دوره 9، شماره 1 - ( 10-1388 ) برگشت به فهرست نسخه ها
مجله علوم شیلاتی ایران Iranian Journal of Fisheries Sciences
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