This study was carried out to investigate population dynamic of Caspian sand smelt (A. caspia) based on a monthly sampling in northern coast of Gorgan bay, between the estuary and canal of Khozeini, during its migration to coastal areas from March to September 2017. A total of 800 samples were collected using beach siene. Length frequency analysis revealed that there is significant difference b...

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...

This study was designed to determine the effects of parameters: temperature, pH and dKH on growth indices of Oscar fish (Astronotus ocellatus). For this purpose, in each aquarium, there was specific combinations of temperature, pH and dKH, using design of experiment with Design Expert 7.0, and in total 14 combinations or treatments, each with 3 repetitions and thus, 3 fishes were entered in eac...

The aim of this study was to record growth parameters, mortality and sex ratio of Stellate Sturgeon (Acipenser stellatus) from the south basin of the Caspian Sea. 894 specimens were caught by fixed gill net and beach seine during April 2010 to March 2014. Male to female sex ratio was obtained 1:1.05 that was not differed significantly (p>0.05). The minimum and maximum length of the fish specime...

Indian sandwhiting Sillago sihama from family Sillaginidae is food acceptability in Hormozgan province. 1204 samples were collected from Coastal Waters of Bandar Abbas by encircling gill net and vessels from July 2011 to July 2012 and 884 samples were investigated for length- length and length-weight relationships.The results indicated that the length-length and length-weight relationships sp...