Integrated aquaculture in arid environments

Integrated Multi - Trophic Aquaculture TECH 797

Scratch Resistance of Paints Degraded by Arid Saharan Environments

In the vast Algerian Sahara, the climate is typically desert, characterized by heat and dryness all year, which contributes to a very pronounced aridity. The aim of this study is to investigate the impact of this arid environment on automotive paints. Four paint samples with different durations of use were tested. Initially, a visualization of the surface condition by optical microscopy and...

Forage yield and quality of barley-annual medic intercrops in semi-arid environments

On-farm production of protein is limited in most dairy farm operations in arid and semi-arid environments. Cereal-legume intercropping could be a viable option to obtain forage with higher protein content. A two-year experiment was conducted during 2009 and 2010 growing seasons in a loamy soil to determine whether intercropping pattern of barley (Hordeum vulgare L.) and annual medic (Medica...

Shellfish aquaculture — In praise of sustainable economies and environments

We write to extol the virtues of filterfeeding bivalve shellfish – clams, mussels, oysters and scallops – to give them their due as key players in ecologically sustainable aquaculture in the marine environment and as environmentally sensitive monitors and water purifiers. Shellfish are successfully farmed throughout the world and shellfish culture represents a legitimate use of the marine envir...

Predicting the Future Impact of Droughts on Ungulate Populations in Arid and Semi-Arid Environments

Droughts can have a severe impact on the dynamics of animal populations, particularly in semi-arid and arid environments where herbivore populations are strongly limited by resource availability. Increased drought intensity under projected climate change scenarios can be expected to reduce the viability of such populations, yet this impact has seldom been quantified. In this study, we aim to fi...