Results 21 to 30 of about 72,863 (247)

Characteristics of the viromes in the pelagic zone of Lake Baikal

open access: yesLimnology and Freshwater Biology, 2020
For the first time, we characterized viromes from the epipelagic zone of three Lake Baikal basins. We determined alpha and beta diversity of viral communities, carried out functional annotation of reads, built whole genome sequences of viruses, detected auxiliary metabolic genes, and evaluated environmental factors affecting the quantitative and ...
S. Potapov   +7 more
openaire   +2 more sources

New Permo-Carboniferous geochemical data from central Thailand: implication for a volcanic arc model [PDF]

open access: yes, 1991
Current ideas and models of geotectonic reconstructions of Southeast Asia are reviewed and new data on Late Carboniferous through Middle Permian tuffites and sills from central Thailand are presented in the light of the problems of Southeast Asian ...
Altermann   +57 more
core   +1 more source

Periphyton changes over 20 years of chemical recovery of Lake Orta, Italy: differential response to perturbation of littoral and pelagic communities

open access: yesJournal of Limnology, 2011
Lake Orta, a large Italian subalpine lake, has a long history of industrial pollution by acid, ammonia, and metals. A whole-lake liming treatment in 1989-1990 led to a gradual increase in pH (from 4.4 to 7) and a concomitant decline in ammonia (from 2.5 ...
Giuseppe MORABITO   +4 more
doaj   +1 more source

Vertical Distribution of Particulate Matter in the Clarion Clipperton Zone (German Sector)—Potential Impacts From Deep-Sea Mining Discharge in the Water Column

open access: yesFrontiers in Marine Science, 2022
Most studies on the potential impacts of deep-sea mining in the Clarion Clipperton Zone (CCZ) have largely focused on benthic ecosystems but ignore the pelagic environment. To model full-scale impacts, it is important to understand how sediment discharge
Benjamin Gillard   +6 more
doaj   +1 more source

Prokaryotic assemblages and metagenomes in pelagic zones of the South China Sea [PDF]

open access: yesBMC Genomics, 2015
Prokaryotic microbes, the most abundant organisms in the ocean, are remarkably diverse. Despite numerous studies of marine prokaryotes, the zonation of their communities in pelagic zones has been poorly delineated. By exploiting the persistent stratification of the South China Sea (SCS), we performed a 2-year, large spatial scale (10, 100, 1000, and ...
Tseng, CH   +11 more
openaire   +3 more sources

Stable Isotope Food Web Analysis of a Large Subtropical Lake: Alternative Explanations for 15N Enrichment of Pelagic vs. Littoral Fisheries

open access: yesThe Scientific World Journal, 2003
The food webs of littoral, pelagic, and littoral-pelagic ecotone (interface) regions of a large subtropical lake were investigated using stable isotope ratio methods, expanding the focus of a previous fish-only study to include other food web components ...
Karl E. Havens   +3 more
doaj   +1 more source

The origin and initial rise of pelagic cephalopods in the Ordovician.

open access: yesPLoS ONE, 2009
BackgroundDuring the Ordovician the global diversity increased dramatically at family, genus and species levels. Partially the diversification is explained by an increased nutrient, and phytoplankton availability in the open water.
Björn Kröger   +2 more
doaj   +1 more source

Assessment of the pelagic fish populations using CEN multi-mesh gillnets: consequences for the characterization of the fish communities

open access: yesKnowledge and Management of Aquatic Ecosystems, 2009
The contribution of CEN standard pelagic nets to the assessment of fish communities is tested by comparing three metrics (species composition, species abundance, and size structures) measured in accordance with the standard (i.e. using benthic nets only)
Deceliere-Vergès C., Guillard J.
doaj   +1 more source

Plankton Community in the Pelagic and Littoral Zones of the Overgrown Lake Beloe (Volzhsko-Kamskiy Biosphere Natural State Reserve, Republic of Tatarstan, Russian Federation) [PDF]

open access: yesЖурнал Сибирского федерального университета: Серия Биология, 2015
Comparative analysis of different groups of the planktonic community (phytoplankton, protozoo- and zooplankton) was performed in the pelagic and littoral zones of overgrown Lake Beloe (Volzhsko- Kamskiy Biosphere Natural State Reserve, Republic of ...
Оksana V. Mukhortova   +4 more
doaj  

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