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Feeding habits of bamboo shark Chiloscyllium arabicum Gubanov, 1980 in the coastal waters of Bandar Abbas (Hormozgan province-Persian Gulf)
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Eslam Mehdizadeh   , Mehdi Safaie * , Soheila Ebrahimi |
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Abstract: (4324 Views) |
| Feeding habits of bamboo shark (C. arabicum) were studied monthly in Persian Gulf (Bandar Abbas area) during the period from November 2015 to April 2016. A total sample of 180 specimens (including 102 males and 78 females) ranging from 37/2 to 73/4 mm total length, were caught in Persian Gulf waters (Bandar Abbas up to Qeshm island) using trawl and bottom gill nets. The contents of the stomachs consisted of mainly large quantities of fish (47%), crustaceans (31%), mixed materials (unidentifiable matter) (19%) and molluscs (3%). Based on the major food contents observed in different seasons, fish item was the most dominant in March (63 %) and the crustaceans items and Mollusca were the most dominant ones in January (45 %) and November (8%), respectively. There was no significant difference in terms of the diet composition in both sexes, but significant differences were observed in the preference for food items in different size groups. The Stomach emptiness index (CV) index varied significantly in both sexes that was ranged between 3/3- 23/3% and 3/8 - 11/8 % for male and female, respectively. Additionally the results showed that the maximum and minimum of Gastrosomatic index (GaSI) observed in March and April 2016, respectively. |
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| Keywords: C. arabicum, Diet composition, Feeding index, Persian Gulf, Hormozgan |
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Full-Text [PDF 832 kb]
(1073 Downloads)
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Type of Study: Research |
Subject:
Special
Received: 2017/03/26 | Accepted: 2017/07/31 | Published: 2017/12/21
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