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Food habits and food relationship for some freshwater fish species in Al-Tharthar arm- Tigris- Sammara, Iraq | ||
| Basrah Journal of Agricultural Sciences | ||
| Article 13, Volume 26, 2 (special Issue), 2013, Pages 182-197 PDF (0 K) | ||
| DOI: 10.33762/bagrs.2013.111707 | ||
| Author | ||
| Nehad K. Wahab | ||
| Abstract | ||
| Food habits, natural food and food relationship for thirteen Al-Tharthar canal fish species (Aspius vorax, Barbus luteus, Tilapia zilli, Garra rufa, Cyprinion macrostomus, B. belayewi, Cyprinus carpio, Carassius auratus, Liza abu, B. grypus, Chondrostoma regium , Chalcalburnus sella land B. barbulus), that occupied (5.65, 13.71, 9.68, 1.61, 5.65, 3.23, 6.45, 16.94, 16.53, 6.85, 7.66, 1.61 and 4.44)% of total catch respectively, collected from Al-Tharthar arm were studied during the period from April to September 2012, by using point and frequency methods. This study is a part of studies on the food habits for freshwater fishes in Tigris River. Food habit for A. vorax was carnivores, for B, luteus, and T, zilli, was herbivores, for C. macrostomus, and B. belayewi was detritivores, and for C. carpio, C. auratus, L. abu , B. grypus , C. regium G. rufa, C. sellal, and B. barbulus was omnivores. Plants particles and seeds was found to be very important in the food of C. sellal 50.60% and G. rufa 35.22%, organic matter in the food of (B. belayewi, C. macrostomus, C. regium , C. auratus, C. carpio, L. abu , and B. grypus) accounted for (52.63, 51.25, 49.59, 39.11, 36.56, 35.60, and 30.63)%of food content respectively, algae for T, zilli 57.84%, B, luteus 55.03%, and G. rufa 36.64% and fish for A. vorax 81.67%. The numbers of significant food interrelationships between fish species were 42 and 63 when calculated on the basis of points and frequency of occurrence methods respectively, with a percentage 53.85% and 89.77% respectively | ||
| Keywords | ||
| Tharthar arm; Fish; Biology; Food habit; Food interrelationship | ||
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