The aim of this study was to investigate the important biological characteristics. Including: age and growth of whitefish and environmental factors such as water temperature for wind, study of litter, catch rate of these valuable fish. This study was recorded and biometric in 4 whitefish stations and the length of the fork and its weight were recorded. In each station, the specific bed material...

The aim of this study was to investigate the effect of fish size and seasonality on the epidermis structure and protein profile of the skin mucus of Rainbow trout. Skin mucus samples were collected over three consecutive season periods including late winter, mid spring and early autumn. In each season, sampling was performed separately from three different weight groups including 2-20 gr fish (...

The effects of different levels of fish oil on productive and reproductive performance as well as serum biochemical indices in female Chukar partridges were evaluated. Thirty-six 1.5-year-old laying Chukar partridges and 12 age-matched males (female: male ratio of 3:1) were divided to four experimental groups (three replicates of three birds each) in a completely randomized, to orally receive 0...

Correlation between fish length, length and weight of otolith of sardine in the Southern waters of Iran still unknown. Therefore, because of commercial and ecological importance of Sardinella sindensis, relationships between fish length (total length), length and weight otolith was studied. In total, 123 Sind sardine were sampled by double –boat purse seiners from coastal waters of Jask from Oc...

  This research was carried out with the aim of investigating the biological reproduction of fish retrieval in the Caspian Sea. Each Month catches were carried from Golestan province from December 2015 to September 2016. In total, 200 pieces of fish were caught to study reproductive production in the study area. In this research, the total length of the fish was 16.6 ± 1.5 mm and the frequency ...

Purpose of this study was to evaluate the biological parameters of growth and some roach (Rutilus rutilus caspicus) on the southern coast of the Caspian Sea. Therefore, 160 pieces of fish taken from two the regions and some biological characteristics such as age, sexuality and growth, given the importance and development of population and time were studied. The mean (±Standard Deviation) age, b...