Feeding strategy of the Deepwater Goby,Chasar bathybius,in the Southern Caspian Sea (Osteichthyes: Gobiidae) |
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| Authors: | Seyedeh Mojgan Kalantarian Asghar Abdoli |
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| Affiliation: | 1. Faculty of Biological Sciences , Shahid Beheshti University , G,C, Tehran , Iran;2. Department of Biodiversity and Ecosystem Management, Environmental Sciences Research Institute , Shahid Beheshti University , G,C, Tehran , Iran |
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| Abstract: | Eleven animal taxa were identified as prey of the Deepwater Goby, Chasar bathybius (Kessler, 1877), by analysing stomach contents: these were some species of Gobiidae, Clupeidae, Atherina boyeri, Carassius gibelio, Liza sp., Cardium sp., and Rhithropanopeus sp. With a frequency of 66%, Neogobius fluviatilis was the most prevalent food item, and was the dominant prey taxon in all seasons and age groups. C. bathybius exhibited a specialist feeding strategy on this fish and the other prey types. The dietary breadth is highest in spring according to the Shannon index. |
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| Keywords: | Chasar bathybius gobiid fishes dominant prey type feeding strategy Salmanshahr |
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