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Estimating Zooplankton Biomass Distribution in the Water Column Near the Endeavour Segment of Juan de Fuca Ridge Using Acoustic Backscatter and Concurrently Towed Nets
Estimating Zooplankton Biomass Water Column Near Endeavour Segment Juan de Fuca Ridge Acoustic Backscatter Concurrently Towed Nets
2015/7/14
Logistical challenges, time, and the cost of towed net surveys make it difficult to obtain estimates of secondary biomass and production in the open ocean outside the summer sampling season. Alternate...
Effects of environmental conditions on the seasonal distribution of phytoplankton biomass in the North Sea
environmental conditions the seasonal distribution phytoplankton biomass in the North Sea
2014/4/18
We study the spatial and seasonal variability of phytoplankton biomass (as phytoplankton color) in relation to the environmental conditions in the North Sea using data from the Continuous Plankton Rec...
Dreissenid mussels (Dreissena polymorphaandDreissena bugensis) reduce microzooplankton and macrozooplankton biomass in thermally stratified lakes
Dreissenid mussels reduce microzooplankton macrozooplankton biomass thermally stratified lakes
2014/4/16
We conducted a survey of 50 thermally stratified lakes with similar nutrient concentrations and morphometries in Michigan to examine the direct and indirect effects of dreissenid mussels on the biomas...
Influence of water-column depth and mixing on phytoplankton biomass, community composition, and nutrients
Influence of water-column depth mixing on phytoplankton biomass community composition nutrients
2014/4/21
We independently manipulated mixing intensity (strong artificial mixing vs. background turbulence) and water-column depth (2 m, 4 m, 8 m, and 12 m) in order to explore their separate and combined effe...
13 C dynamics in benthic algae: Effects of light, phosphorus, and biomass development
13 C dynamics benthic algae light phosphorus biomass
2014/4/18
We performed three experiments in indoor streams and one experiment in a natural stream to investigate the effects of growth factors on d13 C levels in benthic microalgae. In the indoor streams, algae...
Influence of water-column depth and mixing on phytoplankton biomass, community composition, and nutrients
water-column depth mixing phytoplankton biomass community composition nutrients
2014/4/18
We independently manipulated mixing intensity (strong artificial mixing vs. background turbulence) and water-column depth (2 m, 4 m, 8 m, and 12 m) in order to explore their separateand combined effec...
A long-term chlorophyll dataset reveals regime shift in North Sea phytoplankton biomass unconnected to nutrient levels
A long-term chlorophyll dataset reveals regime shift in North Sea phytoplankton biomass unconnected nutrient levels
2014/4/23
During the 1980s, a rapid increase in the Phytoplankton Colour Index (PCI), a semiquantitative visual estimate of algal biomass, was observed in the North Sea as part of a regionwide regime shift. Two...
Top-down and bottom-up controls on periphyton biomass and productivity in Lake Tanganyika
Top-down and bottom-up controls periphyton biomass and productivity Lake Tanganyika
2014/5/4
We studied the effects of nutrient availability and grazers on periphyton in the littoral zone of Lake Tanganyika. Using a combination of dissolved nutrient ratios, nutrient diffusing substrates, and ...
Long-term temporal and spatial trends in phytoplankton biomass and class-level taxonomic composition in the hydrologically variable Neuse-Pamlico estuarine continuum, North Carolina, U.S.A.
Long-term temporal spatial trends phytoplankton biomass class-level taxonomic composition hydrologically variable Neuse-Pamlico estuarine continuum North Carolina U.S.A.
2014/5/4
Phytoplankton diagnostic photopigments in near-surface waters (~0.5 m) were identified and quantified by high-performance liquid chromatography beginning in April 1994 in the Neuse River Estuary and i...
Light supply, plankton biomass, and seston stoichiometry in a gradient of lake mixing depths
Light supply plankton biomass seston stoichiometry a gradient of lake mixing depths
2014/5/4
We derive from a dynamic model that light availability, phytoplankton density, and the carbon : nutrient ratio of phytoplankton biomass should all be negatively related to mixed surface layer depth, w...
Effects of atmospheric nitrogen deposition on nutrient limitation and phytoplankton biomass in unproductive Swedish lakes
atmospheric nitrogen deposition nutrient limitation phytoplankton biomass unproductive Swedish lakes
2014/5/9
We used chemical data (3,907 lakes) and phytoplankton biomass (chlorophyll a) data (225 lakes) from Swedish lake monitoring programs to assess the effects of atmospheric nitrogen (N) deposition on nut...
Seasonal and annual variability in the spatial patterns of plankton biomass in Chesapeake Bay
Seasonal and annual variability spatial patterns plankton biomass Chesapeake Bay
2014/5/9
We conducted high-resolution, underway sampling in April, July, and October for 6 yr (1995-2000) in the large estuary, Chesapeake Bay. This period included climatological extremes in freshwater inputs...
Coupling of epipelagic and mesopelagic heterotrophic picoplankton production to phytoplankton biomass in the Antarctic polar frontal region
epipelagic mesopelagic heterotrophic picoplankton production phytoplankton biomass Antarctic polar frontal region
2014/5/19
We assessed relationships between phytoplankton standing stock, measured as chlorophyll a (Chl a), primary production (PP), and heterotrophic picoplankton production (HPP), in the epipelagic zone (0-1...
Top-down control of phytoplankton biomass and community structure in the monsoonal Arabian Sea
Top-down control phytoplankton biomass community structure monsoonal Arabian Sea
2014/5/26
During the 1995 monsoons, phytoplankton biomass was low over large areas of the Arabian Sea in spite of often high concentrations of inorganic nutrients, characteristics typical of high-nutrient, lowc...
Multiyear patterns of fungal biomass dynamics and productivity within naturally decaying smooth cordgrass shoots
Multiyear patterns fungal biomass dynamics productivity within naturally decaying smooth cordgrass shoots
2014/6/9
Ascomycetous fungi are predominant secondary microbial producers of the smooth cordgrass (Spartina alterniflora) shoot decay system. A 3-yr examination of concentrations of living fungal mass (as ergo...