Study of feeding habits of yellowfin tuna (Thunnus albacares) in the Oman Sea
Feeding habits of yellowfin tuna were studied in the Oman Sea in 1998-99. 546 stomach contents with fork length frequency 38-173 cm were studied and classified as full, semi full and empty. Occurence of empty Stomachs Were high (63.10 %) in males and 59.37%: in females) in the specimens which indicated daily feeding of yellowfin tuna. Purpleback flying squid (Sthenoteuthis oualaniensis) was the most dominant prey species observed in this study (60% in males and 57% in females), occurence of teleost fishes were found to be second (38% in mates and 42% in females). Furthermore, crabs were also identified as a part stomach contents with a low frequency (1-2%).
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| Main Authors: | , , |
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| Format: | article biblioteca |
| Language: | Persian |
| Published: |
2002
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| Subjects: | Biology, Yellowfin Tuna, Thunnus albacares, Feeding habits, Oman Sea, Iran, |
| Online Access: | http://hdl.handle.net/1834/38740 |
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| Summary: | Feeding habits of yellowfin tuna were studied in the Oman Sea in 1998-99. 546 stomach contents with fork length frequency 38-173 cm were studied and classified as full, semi full and empty. Occurence of empty Stomachs Were high (63.10 %) in males and 59.37%: in females) in the specimens which indicated daily feeding of yellowfin tuna. Purpleback flying squid (Sthenoteuthis oualaniensis) was the most dominant prey species observed in this study (60% in males and 57% in females), occurence of teleost fishes were found to be second (38% in mates and 42% in females). Furthermore, crabs were also identified as a part stomach contents with a low frequency (1-2%). |
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