نتایج جستجو برای: calcareous algae

تعداد نتایج: 22380  

Journal: :شیلات 0
محمد سوداگر دانشیار، گروه تکثیر و پرورش آبزیان، دانشکده شیلات و محیط زیست، دانشگاه علوم کشاورزی و منابع طبیعی گرگان مجید خالصه دانش آموخته کارشناسی ارشد گروه تکثیر و پرورش آبزیان، دانشکده شیلات و محیط زیست، دانشگاه علوم کشاورزی و منابع طبیعی گرگان محمد مازندرانی استادیار گروه تکثیر و پرورش آبزیان، دانشکده شیلات و محیط زیست، دانشگاه علوم کشاورزی و منابع طبیعی گرگان سیدعباس حسینی دانشیار، گروه تکثیر و پرورش آبزیان، دانشکده شیلات و محیط زیست، دانشگاه علوم کشاورزی و منابع طبیعی گرگان حمیده ذکریائی دانش آموخته کارشناسی ارشد گروه تکثیر و پرورش آبزیان، دانشکده شیلات و محیط زیست، دانشگاه علوم کشاورزی و منابع طبیعی گرگان

the successful aquaculture depends on different criteria, among them, selection of suitable food with required potential is of particular importance. in this study, effects of four diet trial including control diet (without spirulina algae) and three diets containing spirulina algae were investigated on the growth indices and skin color of flower horn (pseudotropheus demasoni). a total number o...

Journal: :iranian journal of public health 0
gh azarian ar mesdaghinia f vaezi r nabizadeh d nematollahi

background: although stabilization ponds and lagoons are suitable treatment processes due to simplicity of operation and low per capital costs, the effluents of these systems have too high of a total suspended solids concentration to be discharged into receiving waters. this problem is mainly caused by algae. in this study, an electro-coagulation reactor was examined to re­move algae from the f...

BM Gharanjik

The aim of this study was to identify seaweeds in the southern coasts of Iranian waters and providing an atlas. The collecting and identification of seaweeds in the southern coasts of Iranian waters were carried out from October 2001 to September 2003. Data on vegetation were gathered in sub tidal and intertidal zones by seasonal and monthly sampling, respectively. Samples were transferred to t...

Journal: :Chemosphere 2008
M Arshad J Silvestre E Pinelli J Kallerhoff M Kaemmerer A Tarigo M Shahid M Guiresse P Pradere C Dumat

Phytoremediation appears to be a promising technique for metal soil clean up, although its successful application on a large scale still remains a challenge. Field experiments for six scented Pelargonium cultivars, conducted on two Pb-contaminated calcareous and acidic soils, revealed vigorous plant growth, with no symptoms of morpho-phytotoxicity in spite of high Pb accumulation levels. Lead c...

2017
David K. Watkins G. Villa

Rare calcareous nannofossils from the Cape Roberts Project drillhole CRP-2A indicate that this area was episodically invaded by marginal oceanic surface waters during the late and late early Oligocene. These depauperate assemblages lack most of the biostratigraphic index fossils for the Oligocene, but do provide two datums that aid in constraining the age of the section: the last appearance dat...

2005
Paula Lopez-Arce David Benavente Javier Garcia-Guinea

Time-dependent natural weathering processes suffered by historic bricks in Toledo (Spain) improve their physicomechanical properties by porous infill with gypsum, ettringite and mainly calcite. Both, these bricks and their experimental replica bricks, made from the original calcareous clays fired at the probable historical temperatures (700o 900oC), have been analyzed by X-ray diffraction, opti...

BM Gharanjik

The aim of this study was to identify seaweeds in the southern coasts of Iranian waters and providing an atlas. The collecting and identification of seaweeds in the southern coasts of Iranian waters were carried out from October 2001 to September 2003. Data on vegetation were gathered in sub tidal and intertidal zones by seasonal and monthly sampling, respectively. Samples were transferred to t...

Journal: :Marine Environmental Research 2021

In coastal marine ecosystems coralline algae often create biogenic reefs. These calcareous algal reefs affect their associated invertebrate communities via diurnal oscillations in photosynthesis, respiration and calcification processes. Little is known about how these function they will be affected by climate change. We investigated the winter response of a Mediterranean intertidal reef, Elliss...

Journal: :Mayo Clinic Proceedings 2011

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