نتایج جستجو برای: fresh water harvesting

تعداد نتایج: 620829  

Journal: :Biology letters 2011
T Douglas Beard Robert Arlinghaus Steven J Cooke Peter B McIntyre Sena De Silva Devin Bartley Ian G Cowx

Inland fisheries are a vital component in the livelihoods and food security of people throughout the world, as well as contributing huge recreational and economic benefits. These valuable assets are jeopardized by lack of research-based understanding of the impacts of fisheries on inland ecosystems, and similarly the impact of human activities associated with inland waters on fisheries and aqua...

2013
David A. Vermaas Joost Veerman Ngai Yin Yip Menachem Elimelech Michel Saakes Kitty Nijmeijer

Renewable energy can be captured from the mixing of salt and fresh water in reverse electrodialysis. This paper investigates the energy efficiency of this process for feed waters that pass a reverse electrodialysis cell once and waters that pass multiple cells or electrode segments. So far, the maximum theoretical energy efficiency was considered to be 50% when the feed waters pass a single cel...

2009
Asif M. Bhatti Donald Rundquist John Schalles Luis Ramirez Seigo Nasu

The objective of the research was to undertake a quantitative comparison of spectralreflectance measurements made slightly above the surface of water bodies with the measurements made slightly below the surface. The study is focused on three rivers; two in Georgia, USA and one in Japan. As expected, the differences in reflectance are not constant and vary with the wavelength. The contribution o...

Journal: :Journal of fish biology 2010
A M Grant M Gardner L M Hanson A P Farrell C J Brauner

Salinity tolerance in wild (Glendale) and hatchery (Quinsam) pink salmon Oncorhynchus gorbuscha (average mass 0·2 g) was assessed by measuring whole body [Na(+)] and [Cl⁻] after 24 or 72 h exposures to fresh water (FW) and 33, 66 or 100% sea water (SW). Gill Na(+), K(+)-ATPase activity was measured following exposure to FW and 100% SW and increased significantly in both populations after a 24 h...

Journal: :Water research 2017
Lj Zlatanović J P van der Hoek J H G Vreeburg

The drinking water quality changes during the transport through distribution systems. Domestic drinking water systems (DDWSs), which include the plumbing between the water meter and consumer's taps, are the most critical points in which water quality may be affected. In distribution networks, the drinking water temperature and water residence time are regarded as indicators of the drinking wate...

Journal: :Ground water 2008
Sean L Culkin Kamini Singha Frederick D Day-Lewis

Pressure to decrease reliance on surface water storage has led to increased interest in aquifer storage and recovery (ASR) systems. Recovery efficiency, which is the ratio of the volume of recovered water that meets a predefined standard to total volume of injected fluid, is a common criterion of ASR viability. Recovery efficiency can be degraded by a number of physical and geochemical processe...

2014
Manju Pathania Biswas Rama Mohan Rao

This article is a hypothetical study of fisherwomen fromthe Coastal areas of West Bengal, Odisha, Andhra Pradesh, and Tamil Naduto highlight social, economic, political,education and health related issues. Fishing is a major industry in coastal states of India but still the coastal fishworkers have been one of the most vulnerable groups among the poor in India. Fisheries are an important sector...

Journal: :Journal of Rainwater Catchment Systems 2005

Sommart Yoosukyingsataporn Somyot Detpiratmongkol

There is little information about the effects of ethephon ripening hormone on the yield of sweet sorghum in Thailand. Therefore, this study aimed to evaluate the impact of ethephon hormone applied at different growth stages of three cultivars of sweet sorghum on its growth and yield. The experiment was conducted from December 2016 to May 2017 at a research plot of the Faculty of Agricultural Te...

Journal: :Applied and environmental microbiology 2013
Xu Zhong Stéphan Jacquet

Cyanophages are important components of aquatic ecosystems, but their genetic diversity has been little investigated in freshwaters. A yearlong survey was conducted in surface waters of the two largest natural perialpine lakes in France (Lake Annecy and Lake Bourget) to investigate part of this cyanophage diversity through the analysis of both structural (e.g., g20) and functional (e.g., psbA) ...

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