background: snow trout (schizothorax pelzami) is an economically important species endemic in the north east of iran. objectives:  the purpose of the present study was to investigate the reproduction cycle, time and temperature range of spawning. methods: the biometry of 243 fishes was measured and the ovarian development stages and plasma sex steroid hormones (testosterone, 17b- estradiol, pro...

The four major Chinese carp (MC), Schizothorax fish species (SF), and Cobitidae (CF) are the most important target in China. swimming behaviour study of three groups is key to fishway designs. 20 min critical speed (U crit-20 ) endurance relation body length, speed, water temperature were estimated using multiple linear regression. results indicated that both length had a significant effect on ...