Phanera mekongensis , a new species from Phu Wua Wildlife Sanctuary, NortheasternThailand, is described and illustrated. The morphological description of the provided discussed in comparison with closely related species. molecular data nuclear chloroplast markers show that taxon robustly positioned well-supported clade includes type genus, P. coccinea .

quantification of the habitat available for fish species named rainbow trout (oncorhynchusmykiss) were evaluated in lees ferry, colorado river using water depth, water temperature, sediment transport,flow velocity in 2004 as environmental index. for the flow velocity and temperature distribution calculationsin the river, the navier-stokes equation and energy conservation equations with finite v...

the purpose of this paper was to determine the factors affecting farmers’ satisfaction from water users associations (wuas) in the harran plain-turkey. the data used in this study come from a sample of 378 farmers among 23,204 in the şanlıurfa-harran plain. they were chosen via simple random sampling method and interviewed face to face. sampling was conducted in 52% of the settlements. to analy...

the purpose of this study was to investigate and analyze factors influencing farmers’ participation in irrigation networks management, with an approach to compare two groups of farmers (one in irrigation networks with wua (water users' association), and the other in networks lacking wua). the methodological approach was a descriptive-correlational and causal-comparative study of the survey...

Water regulation and flood control of rivers are changing due to streamflow depletion following industrialization urbanization, significantly impacting aquatic ecosystems. Therefore, restoration the ecological environment is necessary maintain a healthy river ecosystem. For ecosystem restoration, amount discharge from dams must be controlled appropriate environmental flow calculated according f...

In the last few decades, scope of governanceauthr solutions for environmental problems has increased substantially. The old trichotomy governance by government, markets, and communities been replaced a new interest in hybrid recognition that no single-governance mode possesses capabilities to address multiple facets, interdependencies, scales current problems. This paper takes stock on experien...

An appropriate environmental flow (AEF) is one of the necessary conditions for fish spawning. The operation cascade reservoirs in lower reaches Jinsha River has changed discharge process downstream, which turn directly affected spawning habitat fishes. Determining how to quantitatively evaluate impact different outflows from Xiangjiaba Reservoir on four major Chinese carp species downstream are...

• A new trigger is developed to control when the weight should be updated. adaptive weighting method proposed. decomposition algorithm with weights updated adaptively The proposed applied solve various multiobjective optimization problems . Recently, decomposition-based evolutionary algorithms (DMEAs) have become more prevalent than other patterns (e.g., Pareto-based and indicator-based algorit...

The adaptability of fish to their habitats is closely related river hydraulics. While navigation channel projects aim improve the conditions by adjusting hydrodynamic force local sections, impacts these on hydraulic indicators four major Chinese carp species (FMCCs) remain unclear. Taking Daijiazhou reach in middle reaches Yangtze River as a case study, mathematical model for spawning suitabili...