نتایج جستجو برای: spirogyra

تعداد نتایج: 257  

Journal: :Journal of vector ecology : journal of the Society for Vector Ecology 2016
Donald A Beasley William E Walton

The developmental time and survival to eclosion of Anopheles hermsi Barr & Guptavanij fed monotypic and mixed diets of ten food types were examined in laboratory studies. Larvae fed monotypic diets containing animal detritus (freeze-dried rotifers, freeze-dried Daphnia pulicaria, and TetraMin® fish food flakes) and the mixotrophic protistan Cryptomonas ovata developed faster and survived better...

2015
D. Snehalatha T. Malathi M. Ramesh Babu B. Digamber Rao

Chloroform and Methanol extracts of three genera of algae (Oedogonium crispum (Hassal) Wittrock, Rhizoclonium hieroglyphicum (Ag)Kuetz. and Spirogyra biformis C-C.Jao.) from fresh water of Warangal District were tested in vitro for their antibacterial activities against two strains of gram positive bacteria (Bacillus cereus and Staphylococcus aureus) and two strains of gram negative bacteria (K...

Journal: :International Journal of Photoenergy 2022

The present work was done to optimize the process parameters of oil extraction from algae species spirogyra by using n-hexane as solvent Soxhlet apparatus. response surface methodology (RSM) and artificial neural network (ANN) were employed particle size powder, dryness level solid ratio, reaction time, temperature process. Also, physiochemical properties extracted investigated. comparative eva...

Journal: :Trends in Sciences 2023

Spirogyra neglecta (Hassall) Kützing is an edible freshwater macroalga. It available and consumed as local food in Thailand, especially the northern northeastern parts. To ascertain its good benefit for health safe consumption, this study was, therefore carried out to determine phytochemical compositions, nutritional contents, cytotoxicity, anti-inflammatory activity of different extracts from ...

2012
Allison R. Rober Kevin H. Wyatt Merritt R. Turetsky R. Jan Stevenson

Floristic studies indicate the abundance of microalgae in northern boreal peatlands, but we know relatively little about their ecology or how they will respond to changes in environmental conditions expected in this region as climate changes. We examined changes in algal community structure at sites exposed to a long-term water-table manipulation, including drought (lowered water-table treatmen...

Journal: :Revista de biologia tropical 2008
Olufemi David Owolabi

Dietary habits of the up side-down Mochokid catfish, Synodontis membranaceus were investigated for 24 months (April 2002-March 2004, in Jebba lake, Nigeria) using frequency of occurrence, numerical, gravimetric and index of relative importance (R1) methods. The fish is euryphagus and feeds more at night. RI values indicate that 10 of the 16 food items were major diet components. The main five f...

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