نتایج جستجو برای: tetraselmis suecica
تعداد نتایج: 418 فیلتر نتایج به سال:
Bacteria are remarkably associated with the growth of green algae Tetraselmis which used as a feed source in aquaculture, but Tetraselmis-associated bacterial community is characterized insufficiently. Here, first step towards characterization bacteria, we investigated composition free-living (FLB) and particle-associated (PAB) bacteria each phase (lag, exponential, stationary, death) suecica P...
در این تحقیق قابلیت کشت و پرورش ریزجلبک Tetraselmis suecica در پساب ثانویه شهری و تعیین بهترین غلظت پساب جهت رشد و نیز ارزیابی اثرات پالایشی این ریزجلبک از طریق بررسی میزان حذف ازت و فسفر پساب، مورد تحقیق قرار گرفت. ریزجلبک Tetraselmis suecica در شرایط ثابت آزمایشگاهی با تراکمهای یکسان (106×1 سلول در میلیلیتر) در تیمارهای 250 میلیلیتری محتوی حجمهای متفاوت پساب شهری (20، 40، 60، 80 و 100 درص...
Low hydrocarbon concentrations stimulated the growth of Tetraselmis suecica, whereas higher concentrations (200 ppm) inhibited growth. The content of chlorophyll a in this microalga was affected in a similar way. Crude oil had the most marked effects. Dispersant SEAKLIN-101-NT and mixtures of oil and SEAKLIN-101-NT did not show selective toxicity for the microalga, although inhibitory effects c...
Clam spat Venerupis pullastra were fed for 4 wk on &ets of 2 species of microalgae supplied singly or mixed. Microalgae were Isochrysis galbana and Tetraselmis suecica, species normally used in bivalve hatcheries. Observed growth responses were high for mixed and I. galbana diets and intermediate for the T suecica diet. A slightly higher growth rate was obtained with the mixed diet than with th...
A wild strain of Chaetoceros calcitrans and wild and diuron-resistant strains of Tetraselmis suecica, were exposed to the PSII inhibitor herbicides diuron and irgarol, individually and in mixtures. The effects of three concentrations of diuron and irgarol and four binary mixtures were evaluated on doubling time, relative reactive oxygen species and lipid content by flow cytometry, and on photos...
Phenolic compounds are toxic and dangerous to the environment human health. Although removal of phenols their derivatives is very difficult, it has been achieved by applying some biological processes. The capacity microalga remove phenolic demonstrated; however, few reports these in a mixture have published. phenol, p-cresol o-cresol was performed batch kinetics at 50 100 mg L−1, simultaneous d...
five treatments including conway medium, media containing 0.1, 0.17, 0.3 and 0.5 mg l-1 ferrous (fe; in the first experiment), media with 1, 1.26, 1.59, 2 mg l-1 concentrations of phosphorous (p; in the second experiment) and a pure sample of tetraselmis suecica were cultured under laboratory conditions. growth rate of the algae was determined using the optical density method at 750 nm and numb...
کشتی چسب ها از موجودات غالب گروه ماکروفولینگ ها (macrofoulings) هستند که در نواحی بین جزرومدی سراسر جهان یافت می شوند. در این مطالعه، اثرات تغذیه ی جلبکی با استفاده از گونه های chaetoceros calcitrans، ch. muelleri، isochrysis galbana، tetraselmis suecica و chlorella vulgaris به صورت تک جلبکی و ترکیبی بر روی میزان متاموفوز لارو کشتی چسب amphibalanus amphitrite مورد بررسی قرار گرفت. لاروهای گرفته...
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