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SOME BIOLOGICAL ASPECTS OF Cyprinion macrostomus (Heckel) FISH IN TUZ CHI RIVER - NORTH IRAQ | ||
| IRAQ JOURNAL OF AGRICULTURE | ||
| Article 1, Volume 14, Issue 8, 2009, Pages 0-0 | ||
| Authors | ||
| N.K. Wahab; S.A.S. Al-Shawi | ||
| Abstract | ||
| This work was conducted at Tuz Chi River which is one of Al-Audaim river tributary, Salah – Alddin Province during the period between June 2004 to June 2005. The study includes some biological aspects of Cyprinion macrostomus (Heckel) (sex ratio, food, growth and reproduction). Sex ratio (male: female) was 1:1.32. Organic matter was found the main food item (40.39%) of the food content followed by in organic sediments (20.88%) and algae (18.36%). Fish was found herbivores. There were significant differences in the food intake between sexes, and different length groups. The maximum gonada somatic index was 1.63 for male and 8.06 for female in April. The growth was isometric, the growth in weight increased with a rate of more than the cubic length. The condition factor ranged between 0.57-1.65 with an averaged of 1.06. | ||
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