Impact of different stocking densities on growth performance, welfare and physiology of Litopenaeus vannamei in RAS
Blooms like it hot, but mussels do not: Influence of invasive quagga mussels on cyanobacteria during summer
Coupling an Isotope-Enabled Global Spectral Model (IsoGSM) With Hydrological Modelling Using Streamflow-Isotope-Based Correction
Global assessment of alien freshwater megafauna reveals complex socio-economic impacts
This study shows: Over 40 percent of extant large freshwater animals (megafauna) have been deliberately introduced outside their natural ranges, often for economic gain. While these alien species can provide substantial benefits to certain groups in the introduced regions, they also posed profound and often underestimated risks to native biodiversity and local people.
Global Comparison of Aqueous Geochemistry and Dissolved H2/CH4 in Continental Low Temperature Serpentinization–Influenced Environments
Thermophilic bacteria employ a contractile injection system in hot spring microbial mats
Target and Nontarget Analyses Reveal Similar Dissolved Organic Contaminant Patterns Relative to Quantified Catchment Characteristics along Two German Rivers
Distinct contributions of suspended and sinking prokaryotes to mesopelagic carbon budget
Oceans are important carbon sinks. Bacteria play a central role in carbon cycling because, collectively, they convert more organic material than all other marine organisms combined. Their activity acts as a “carbon pump”, ensuring that life is possible in the deep sea. The authors quantified the effect of bacteria in the middle ocean layers, known as the twilight zone, in the North-East Atlantic.
Current protected areas provide limited benefits for European river biodiversity
Protected areas are meant to preserve endangered species and stabilize ecosystems. But for many European rivers, this protection falls short. The research team examined the condition of rivers at over 1,700 locations in ten European countries across a period of almost four decades. The result: Existing protected areas have only brought about measurable improvements in a limited subset of rivers.
Flow variability and macroinvertebrates jointly regulate stream periphyton and metabolism: Insights from experimental stream mesocosms
In stream mesocosm experiments the authors tested how reduced flow and a sequence of controlled flushing events, with or without macroinvertebrates, affect periphyton community composition, algal biovolume, and ecosystem metabolism. Flow variability and macroinvertebrates control periphyton structure, metabolism, and carbon cycling, with macroinvertebrates stabilising responses to disturbance.