The Study of the Morphometric-Meristic Characters, Diet and Fecundity Indices of Anjak Fish (Schizocypris brucei) in Hamoun Wetlands of Iran
Subject Areas : Journal of Animal Biologyروح الله عباسپور 1 , ابوالفتح علی پور 2 , جواد مسگران کریمی 3 , مهرزاد محمدی 4
1 - باشگاه پژوهشگران جوان، دانشگاه آزاد اسلامی، واحد لاهیجان، لاهیجان، ایران
2 - دانشگاه صنعتی اصفهان، گروه شیلات، اصفهان، ایران
3 - باشگاه پژوهشگران جوان، دانشگاه آزاد اسلامی، واحد لاهیجان، لاهیجان، ایران
4 - دانشکده کشاورزی و منابع طبیعی دانشگاه خلیج فارس بوشهر، گروه شیلات، بوشهر، ایران
Keywords: Diet, fecundity, Anjak Fish, Morphometric - Meristic, Hamoun Wetlands,
Abstract :
Schizocypris bruceibelongs to the family Cyprinidae is economic and native in the region of Sistan. In the reproductive season (April 2009), 36 number anjak fish in Hamoun Wetlands and Zabul were analyzed. After catching with fixed net the fish and transferred to the laboratory after biometric, morphometric - meristic characters, Fecundity and diet were determined. According to the results, average standard length was 15/4andplusmn; 1/70 cm (12/9-19/5cm) Average lateral line scales of 92/1 andplusmn; 8/95 (76-113), body weight of 55/5andplusmn; 14/45 g (38/4-87/4 g), average total length of 18/5andplusmn; 1/99 cm ( 15/4-23/5 cm), ovarian weight 2/43andplusmn; 2/18 (0/51-6/91 g), the absolute fecundity 4332/26andplusmn; 3316/67 (1966/96-14077/4 number of eggs ), egg diameter, 0/83andplusmn; 0/21 mm (0/6-1.25 mm), average relative fecundity 69/83andplusmn;43/37 (45/67-190/38), index average length of intestine in body length 7/00andplusmn;1/39 (4/76-9/24), index the average growth rate 876/5andplusmn;115/87 (647/5-1101/7) and index colon weight to total weight of fish, 0/06andplusmn; 0/028(0/03-0/135). Also pull out the digestive tract of fish, food eaten were identified. According to the results obtained in all cases, spiral intestine of food remnants being degraded and was undetectable and the combined sludge and residue formed. Thus, according to a survey conducted diet of fish was vegetarian. Overall, little difference between the minimum and maximum total length represent the total weight of fish in this lifetime is very low and the low reproductive age shows.
