نظر به اينكه پرورش ميگوي وانامي (Penaeus vanamei) در ايران، به عنوان يك صنعت جديد، در سواحل
جنوبي و شمالي كشور در مقياس تجاري در حال توسعه بوده، در ارتباط با مديريت پرورش با چالش هاي مواجه گرديده كه از اينرو مديريت آن نياز به بررسي و پايش دارد. اين مطالعه اخير در نظر دارد تا مديريت پرورش ميگو را در 3 مزرعه اي كه به صورت تصادفي در سايت پرورش ميگوي تياب شمالي استان هرمزگان را مورد ارزيابي قرار دهد. نتايج حاصل از اين مطالعه نشان داد كه اگرچه بيشترين ميزان تنوع گونه اي شامل دياتومه ها بوده است وليكن جلبكهاي سبز-آبي داراي بالاترين ميزان تراكم در مقايسه با دياتومه ها داشته اند. نتايج بيان داشت كه در طي دوره پرورش ميانگين درجه حرارت، شوري، pH، اكسيژن محلول در مزارع مختلف اختلاف معني داري را نشان نداده اند ( 0 . 05
p). ميانگين طول كل و وزن ميگو در پايان دوره پرورش اختلاف معني داري را در مزارع مختلف نشان نداده است (0 . 05
چكيده انگليسي :
Due to outbreak of white spot disease (WSD), in 2004, that caused mass mortality of the indigenous species Penaeus indicus in southern shrimp farms of Iran, Penaeus vannamei has introduced to Iranian shrimp culture industry, and now is farmed in southern and northern coastal parts of Iran on a commercial scale. Considering shrimp farming is as a new and improving aquaculture practice in Iran, it faces some challenging problems in term of culturing management that need to be monitored. The present study purposed to assess the performance of shrimp farming management in 3 randomly selected farms in Teyab, Hormozgan, Iran. The results showed that, although the greatest phytoplankton diversity in the Teyab farms were related to diatoms, but cyanophytes showed higher density than the diatoms. The results indicated that during the culturing period, mean values for temperature, salinity, pH and dissolved oxygen (DO) were not significantly different in farms (p>0.05), whereasthe levels for Chlorophyll-a (Chl-a) and total organic matter (TOM) showed the highest content onwards to the end of culturing period (p>0.05). The average total length or final weigh showed no significant differences in 3 farms at the end of culturing period. Positive correlation was found between pH and water temperature, pH andDO, pH and ammonia; Chl-a and DO; growth parameters and DO, growth parameters and Chl-a. However a negative correlation was observed between TOM and pH, TOM and water temperature, TOM and ammonia; Chl-a and water temperature, Chl-a and salinity, Chl-a and transparency; growth parameters and salinity, growth parameters and pH, growth parameters and ammonia. However, water quality parameters should be monitored to serve as guide for managing a pond so that conditions that can adversely affect the growth of shrimp can be avoided.
كليدواژه :
ميگو , طرح و ساختمان , پست ﻻرو , ﻣﯿﮕﻮي واﻧﺎﻣﯽ , ﺗﯿﺎب ﺷﻤﺎﻟﯽ , ﮐﯿﻔﯿﺖ آب , ﻣﺪﯾﺮﯾﺖ ﻣﺰارع ﭘﺮورش ﻣﯿﮕﻮ , ﻣﯿﮕﻮي واﻧﺎﻣﯽ