نتایج جستجو برای: fish waste

تعداد نتایج: 184490  

Journal: :Circular Economy and Sustainability 2022

The research was conducted based on the exposure of a fish diversity to different concentrations and types plastic waste, either by direct ingestion, contaminated environments, or transfer through trophic chain. degrees affections these wastes cause are described; also, comparison results some authors in their experiments has been included. As result, it concluded that waste is easily assimilat...

Journal: :Acta Veterinaria Brasilica 2016

Journal: :Revista Brasileira de Saúde e Produção Animal 2017

Journal: :The Journal of the Society of Chemical Industry, Japan 1959

2003

UA-Magazine he use of municipal wastewater to fertilize ponds began in Kolkata in the thirty’s, and it is now perhaps the largest wastewater fed aquaculture system in the world (Nair, 1944; Jhingran, 1991). Kolkata is a metropolis of 14 million inhabitants. The Kolkata periurban area especially where wastewater fish farming is practiced supports the livelihood of a large number of people throug...

Journal: :international journal of environmental research 2011
w.j.s. mwegoha

a mathematical model was developed to predict the effects of wind speed, light, ph, temperature, dissolved carbon dioxide and chemical oxygen demand (cod) on dissolved oxygen (do) in fish ponds. the effects of organic feeds, aeration and fish activity were added to the model developed by kayombo et al. for waste stabilization ponds (ecological modeling 127(2000): 21-31) to reflect the situat...

Journal: :Science 2016
Oona M Lönnstedt Peter Eklöv

The widespread occurrence and accumulation of plastic waste in the environment have become a growing global concern over the past decade. Although some marine organisms have been shown to ingest plastic, few studies have investigated the ecological effects of plastic waste on animals. Here we show that exposure to environmentally relevant concentrations of microplastic polystyrene particles (90...

روستا, حمید رضا, سجادی نیا, عبدالرضا,

Aquaponic is a combination of fish and plant cultivated in recirculating systems. Fish culture in closed recirculating systems causes organic waste accumulation in the system. If these metabolites are used for plant nutrition, they are not mere waste, but have economical value and however benefit the fish production systems. Most aquaponic systems are designed as perlite-filled media, thin laye...

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