Payame Noor University Experimental animal Biology 2322-2387 7 3 2018 12 22 The study amount of filtration of oyster Pinctada radiate at different salinities by using of phytoplankton Isochrysis aff galbana The study amount of filtration of oyster Pinctada radiate at different salinities by using of phytoplankton Isochrysis aff galbana 131 140 5331 10.30473/eab.2018.5331 FA Amer Abdollah Nezhad Banaderi M. A., Faculty of Science, Department of Biology, University of Payam Noor International Qeshm, Iran Soheila Ebrahimi Assistant Professor, Faculty of Science, Department of Biology, Professor University of Payam Noor Babylon Branch and International Qeshm, Iran Journal Article 2019 01 05 Abstract Pearl oyster Pinctada radiata is belongs to the family Pteriidae and is one of the pearl oyster Persian GOlf. This study was amid to determine the optimum amount of salt and its effects on the filtration Pearl maker incidents using phytoplankton Isochrysis aff galbana in five treatments salinity (20, 25, 30, 35 and 40 parts per thousand), and 3 were repeated. Shells with an average length (dorsal-ventral) 49.67± 6.98 mm it was gathered from the Hendorabi island. The initial density of phytoplankton to town with 100,000 cells / ml were considered and at the time of one-hour and two-hour congestion they were counted again. The most of filtration rate was in 35 parts per thousand salinity that it is the first time 2459.77± 89.46 and 14.66% increase in the second hour with 2820.39±57 /00ml / hour / shellfish with other treatments were significantly different (P˂0.05). The filtration rate was about 20 ppt salinity levels in the first hour 140.51±37.02 and in the second hour with 32.12% decrease, 40.55±22.11 ml/ h/ shellfish with Other treatments that were significantly different (P˂0.05). The results showed that best salt for biological activity such as eating, breathing and growing incidents of pearl was in 35 ppt salinity also increases the filtration at second hour in 30, 35 and 40 parts per thousand reflects its ability to adapt in salinity. Abstract Pearl oyster Pinctada radiata is belongs to the family Pteriidae and is one of the pearl oyster Persian GOlf. This study was amid to determine the optimum amount of salt and its effects on the filtration Pearl maker incidents using phytoplankton Isochrysis aff galbana in five treatments salinity (20, 25, 30, 35 and 40 parts per thousand), and 3 were repeated. Shells with an average length (dorsal-ventral) 49.67± 6.98 mm it was gathered from the Hendorabi island. The initial density of phytoplankton to town with 100,000 cells / ml were considered and at the time of one-hour and two-hour congestion they were counted again. The most of filtration rate was in 35 parts per thousand salinity that it is the first time 2459.77± 89.46 and 14.66% increase in the second hour with 2820.39±57 /00ml / hour / shellfish with other treatments were significantly different (P˂0.05). The filtration rate was about 20 ppt salinity levels in the first hour 140.51±37.02 and in the second hour with 32.12% decrease, 40.55±22.11 ml/ h/ shellfish with Other treatments that were significantly different (P˂0.05). The results showed that best salt for biological activity such as eating, breathing and growing incidents of pearl was in 35 ppt salinity also increases the filtration at second hour in 30, 35 and 40 parts per thousand reflects its ability to adapt in salinity.

https://eab.journals.pnu.ac.ir/article_5331_3a8a499a92dce42c07056202a088198f.pdf