03 آذر 1403
محمد حسين خانجاني

محمد حسین خانجانی

مرتبه علمی: دانشیار
نشانی: دانشگاه جیرفت
تحصیلات: دکترای تخصصی / شیلات
تلفن: 09132576390
دانشکده: دانشکده منابع طبیعی

مشخصات پژوهش

عنوان
Microorganisms in biofloc aquaculture system
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
Aquaculture Biofloc Microorganism Water quality Feed
پژوهشگران محمد حسین خانجانی، علیرضا محمدی، ماریوسیو گاستاوا کلهو امرنسیانو

چکیده

Microorganisms (MOs) are an important member of any aquaculture system. The MOs in the BFT (Biofloc Technology) system are also crucial, diverse and therefore have different roles. This study reviews the importance of biofloc organisms (BFOs) in BFT, the factors affecting their population compositions, the impact of BFOs on water quality, and applications as food source for cultivated aquatic species. Common MOs in the BFT system often include photoautotrophic (e.g. microalgae), chemoautotrophic (e.g. nitrifying bacteria), and heterotrophic organisms, including fungi, ciliates, protozoans, and zooplankton (e.g. rotifers, copepods, and nematodes). Various factors such as salinity, type of carbon source, carbon to nitrogen ratio, aeration, light, stocking density, and total suspended solids affect the quality, density, and diversity of BFOs. Various MOs show different functional characteristics and perform three main functions: (i) help to improve the water quality by removing inorganic nitrogen compounds (bioaccumulation, bioassimilation, nitrifcation, and denitrifcation); (ii) act as a supplementary food source, and (iii) create probiotic properties; key roles for any aquatic farming system.