Results 141 to 150 of about 372,884 (352)
Im Pazifischen Ozean erstreckt sich westlich von Peru und Ecuador ein riesiges Gebiet, in dem lebenswichtiger Sauerstoff Mangelware ist. Dieses Gebiet ist Ziel der Expedition „M77“, zu der das deutsche Forschungsschiff METEOR am 22. Oktober 2008 ausläuft.
Pfannkuche, Olaf
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ABSTRACT River regulation following damming is often associated with deleterious downstream effects, in large part due to reduced total discharge and disruption of seasonal flooding. These effects would be expected to be exacerbated by drought, particularly extended drought.
Jeffrey G. Holmquist +1 more
wiley +1 more source
Targeted conservation measures are contingent on robust knowledge of spatio‐temporal animal distribution in areas of interest. We explore unmanned aerial vehicle (UAV) transect monitoring as a novel method for standardized digital aerial surveys of marine megafauna by investigating the fine‐resolution spatio‐temporal distribution of harbour porpoises ...
Dinah Hartmann +2 more
wiley +1 more source
Parameter choices in acoustic analyses (sampling frequency, FFT size and window overlap) strongly influence multivariate soundscape separation. Using terrestrial and coral reef recordings, we show that these settings can exaggerate or mask ecological differences, emphasizing the need for parameter sensitivity testing and transparent reporting in ...
Juan C. Azofeifa‐Solano +8 more
wiley +1 more source
Akinete formation under nitrogen limitation in an invasive cyanobacterium
Invasive species are a global problem threatening the function of ecosystems. Besides prominent species, microbial invaders are considered as “invisible” and have spread over almost all continents.
Catalina Ríos-Henríquez +1 more
doaj +1 more source
Incorporating environmental DNA metabarcoding for improved benthic biodiversity and habitat mapping
Seafloor imagery is commonly used to collect information about the distribution of benthic organisms in order to generate habitat and biodiversity maps. Recent advances in genomics (e.g., environmental DNA; eDNA) show potential to complement video surveys for habitat mapping, but there have been few examples testing this.
Rylan J. Command +8 more
wiley +1 more source
The Antirogo river, as one of the rivers across the Jember regency, East Java, plays an important role and is used for various activities such as agriculture, domestic, and industrial activities.
Retno Wimbaningrum +3 more
doaj +1 more source
Land cover change that leads to increased nutrient and sediment runoff is an important driver of change in coral reef ecosystems. In this study, we combined satellite remote sensing and field monitoring to assess concomitant changes in watershed land cover and coral cover in northeastern Puerto Rico in 2000–2015.
Pirta Palola +5 more
wiley +1 more source
The single mental barbel is a distinctive feature of the benthic Antarctic fishes of the «cryonotothenioid» subfamily Artedidraconinae. These barbels are unusual because their primary sensory modality is tactility, not chemosensation as in most other ...
Joseph T. Eastman +2 more
doaj +1 more source
Effects of macrobenthos on sediment-water oxygen and ammonium fluxes. Final Report. [PDF]
Sediments are an important location in determining the fate of nutrients entering the estuary. Role of sediments needs to be incorporated into water quality models.
Barnes, J.M. +3 more
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