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dams (hydrology); developmental stages; fisheries; floodplains; freshwater fish; habitats; infrastructure; irrigation; migratory behavior; rivers; water power; weirs; Indonesia
Abstract:
... Development activities threaten the long-term sustainability of tropical floodplain systems. The construction of dams, weirs, irrigation infrastructure and regulators affect connectivity among habitats and can facilitate rapid declines in riverine biota, especially fish. Indonesia is a tropical island country with an abundance of monsoonal rivers. Massive expansions in hydropower and irrigation in ...
Salmo salar; body length; dams (hydrology); fish ladders; freshwater; habitats; migratory behavior; mortality; radio frequency identification; rearing; rivers; salmon; smolts; water power
Abstract:
... Hydropower dams disrupt longitudinal connectivity and cause fragmentation of river systems, which has led to declines in migratory fish species. Atlantic salmon smolts rely on intact longitudinal connectivity to move downstream from rearing habitats in freshwater to feeding grounds at sea. Smolts often suffer increased mortality and delays when they encounter hydropower plants during their downstr ...
... Breeding for improved blanchability—the propensity of the testa (skin) to be removed from the kernel following rapid heat treatment—is a priority for improvement in the Australian Peanut Breeding Program (APBP). Easy removal of the testa by blanching is required for processing of peanuts into peanut butter and various other confectionary products. Thus, blanchability is an economically important t ...
... Barley (Hordeum vulgare L.) is often grown in sites with low rainfall and high temperature during grain filling. Because spike architecture is one of basic footprints of barley domestication, the importance of spikes in adaptation to different environments or abiotic stresses can be hypothesised. In order to compare different barley spike types in terms of kernel growth and yield components, we te ...
cameras; fish; fish ladders; monitoring; rivers; solar radiation; species identification; Germany
Abstract:
... Monitoring of fish movement is important in understanding and optimising the functionality of fishways and in restoring riverine connectivity. This study compared fish monitoring data (ARIS sonar-based and GoPro camera-based), with catches in a multi-mesh stow net following downstream passage in a small river in Bavaria, Germany. In terms of the number of individuals, the sonar-based system (detec ...
Pimelodus; benthic organisms; catfish; ecosystem services; embolism; hemorrhage; intestines; mortality; swim bladder; turbines; water power
Abstract:
... Hydropower development poses severe threats to the aquatic diversity and ecosystem services. One such threat is the exposure of fish to extreme conditions within hydropower facilities. Fish may suffer rapid decompression when passing through turbines or when entering the draft tubes, which can lead to barotrauma and mortality. We aimed to evaluate the effects of rapid decompression on the Amazonia ...
Triticum aestivum; carbon metabolism; chromosome translocation; chromosomes; cultivars; drought; drought tolerance; energy metabolism; gel electrophoresis; gene expression regulation; genes; introgression; nitrogen metabolism; protein metabolism; protein-protein interactions; proteins; proteome; transcription (genetics); water stress; wheat
Abstract:
... Drought is a widespread abiotic stress that has a detrimental effect on both yield and quality of wheat. Discovery and utilisation of drought-resistant gene resources from wheat-related species may help to mitigate effects of drought and decrease yield loss. In this study, we used a comparative proteome approach to identify potential drought-resistance proteins from a wheat (Triticum aestivum L.)– ...
... Soluble sugar content in silique wall and seeds of rapeseed (Brassica napus L.) has significant effects on seed oil formation and accumulation. We studied the relationship between soluble sugar content in B. napus seeds and silique wall and oil concentration under field conditions in two cropping seasons, and examined changes in soluble sugar content in seeds and silique wall under different nitro ...
fish; fish ladders; migratory behavior; migratory species; rivers
Abstract:
... We evaluated the effectiveness of the fish ladder at Porto Primavera Dam in the severely regulated Upper Paraná River, for two Neotropical migratory fish species. Overall, 564 fish (448Megaleporinus obtusidens and 116M. piavussu) were PIT-tagged, released in upstream and downstream areas (on the left and right banks), and monitored continuously for 4 years. The fish performed two-way movements thr ...
... This study explored the effects of abiotic stress on anthocyanin accumulation and grain weight of purple wheat (Triticum aestivum L. cv. Guizi 1). Plants were treated with five abiotic stress factors at different developmental periods of the grain, then mature grains were analysed for anthocyanin content and 1000-grain weight (TGW). Stresses included temperature (cold and heat), light (shading irr ...
Triticum aestivum; evaporation; field experimentation; grain yield; harvest index; heading; mulching; plastic film mulches; soil water; transpiration; water shortages; water use efficiency; winter wheat; China
Abstract:
... Water shortage is a limiting factor to crop production in North China. Mulching is a widely used approach to conserve soil water and improve crop yield. A 2-year field experiment was conducted at the Nanpi Eco-Agricultural Experimental Station of the Chinese Academy of Sciences in 2014–16, in which yields of winter wheat (Triticum aestivum L.) in a treatment with subsoil plastic film mulch were co ...
... In plants, unisexual flowers derived from developmental sex determination form separate stamens and pistils that facilitate cross pollination. In cucumber and melon, ethylene plays a key role in sex determination. Six sex determination-related genes have been identified in ethylene biosynthesis in these Cucumis species. The interactions among these genes are thought to involve ethylene signaling; ...
... Agronomic and seed-quality traits in 17 quinoa (Chenopodium quinoa Willd.) accessions grouped according to seed colour (i.e. ochre and yellow) were investigated and compared with the white commercial cultivar Regalona-Baer. These accessions were previously selected from a range of accessions of diverse origin and seed colour for their potential value in a breeding program for cultivars adapted to ...
Pimelodus; Prochilodus; dynamic models; fish; fisheries; hydrodynamics; rivers; spillways; swimming; turbines; water power; Brazil
Abstract:
... Hydropower plant (HPP) operation may influence downstream flow regimes, which can affect the fish movement. In South America, tailrace fisheries are often killed or injured when interacting with spillways and turbines. Hydrodynamic flow-pattern studies are essential to facilitate mitigation. We developed a computational fluid dynamics model to investigate flow downstream of Três Marias HPP (Brazil ...
... Lactic acid bacteria (LAB) can be used as silage additives to ensure rapid and vigorous fermentation at early stages of ensiling. We predicted that the optimal LAB inoculation dosage for forage at ambient temperature (15–38°C) would be different from that at cold temperature (4°C). In this study, Lactobacillus plantarum QZ227, isolated from a wheat landrace in alpine regions of Qinghai, China, and ...
A. H. Colotelo; R. P. Mueller; R. A. Harnish; J. J. Martinez; T. Phommavong; K. Phommachanh; G. Thorncraft; L. J. Baumgartner; J. M. Hubbard; B. M. Rhode; Z. D. Deng
Pangasianodon hypophthalmus; dams (hydrology); deformation; energy; mortality; rivers; sharks; turbines; turbulent flow; water power; watersheds; waterways; Mekong River
Abstract:
... Global hydropower development is one solution proposed to address the increase in energy needs. However, hydropower-related impacts on riverine ecological systems are not well understood. The Mekong River Basin (MRB) is one of the world’s largest waterways and is presently experiencing significant hydropower expansion. It is also one of the most biodiverse rivers; serving as home to many species t ...
... Barotrauma as a result of rapid decompression has been recorded as the most common injury among fish captured in the tailrace of hydropower dams in Brazil, with catfishes representing the majority of them. Nevertheless, studies investigating barotrauma on catfish are scarce, with the majority determining dose–response curves and thresholds of pressure changes for nektonic species, such as salmonid ...
basins; fish; habitats; herbivores; introduced species; inventories; lotic systems; migratory behavior; migratory species; monitoring; species richness; water power; watersheds; Brazil
Abstract:
... In reservoir cascades, effects on fish assemblages are expected to strengthen over time and transfer from one reservoir to an adjacent one. To test this, fish-assemblage data from 23 years of monitoring in the Araguari reservoir cascade system, upper Paraná River basin, were analysed. The results showed a clear reduction in richness of native and migratory fish species and an increase of non-nativ ...
Triticum aestivum; alleles; exons; grain protein; haplotypes; introns; protein content; single nucleotide polymorphism; wheat; Australia; Israel
Abstract:
... The wheat NAM-B1 and NAM-A1 genes are positively associated with grain protein content (GPC) in wheat. We conducted molecular characterisation of the NAM-1 genes in 51 Australian wheat varieties (Triticum aestivum L.), with the aim of improving GPC and nitrogen-usage efficiency in Australian wheat. In summary, the wild type NAM-B1 gene, which originated from Israel, was identified in two Australia ...
... Fisheries are an important resource in Zambia, but are experiencing overexploitation and are under increasing pressure from external development activities that are compromising river ecosystem services and functioning. One such system is the Kafue Flats floodplain, which is under threat from hydropower development. This paper reviews the effect of potential hydropower development on the Kafue Fla ...