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Mix it Up, Mix it Down: Intriguing Implications of Ocean Layering
Ocean Layering Intriguing
2015/7/3
Using a physical simulation, we explore the vertical density structure within the ocean and how layering (density stratification) controls water motion, impedes nutrient transport, and regulates biolo...
Responses to iron limitation in two colonies of Stylophora pistillata exposed to high temperature: Implications for coral bleaching
Stylophora pistillata Responses coral bleaching
2014/4/8
Exposing the coral Stylophora pistillata to seawater depleted in available iron by complexation with the strong
chelator desferrioxamine B reduces the photosynthetic efficiency and alters the pigment...
Sedimentation of acantharian cysts in the Iceland Basin: Strontium as a ballast for deep ocean particle flux, and implications for acantharian reproductive strategies
acantharian cysts a ballast for deep ocean particl
2014/4/16
Acantharian cysts were discovered in sediment trap samples from spring 2007 at 2000 m in the Iceland Basin.
Although these single-celled organisms contribute to particulate organic matter flux in the...
Observations of turbulent mixing in a phytoplankton thin layer: Implications for formation, maintenance, and breakdown
Observations of turbulent mixing formation maintenance
2014/4/18
Coincident measurements of chlorophyll a (Chl a) and temperature microstructure from Monterey Bay,
California, U.S.A., are used to investigate the dynamics of a phytoplankton thin layer in the contex...
Staying alive: The post-consumption fate of parasite spores and its implications for disease dynamics
Staying alive parasite spores disease dynamics
2014/4/18
Studies on the effects of selective predation by fish on disease dynamics in Daphnia generally assume that
consumption by fish means the death of the parasite. I use a combination of feeding trials a...
Ballast, sinking velocity, and apparent diffusivity within marine snow and zooplankton fecal pellets: Implications for substrate turnover by attached bacteria
Ballas sinking velocity apparent diffusivity
2014/4/21
We analyzed size-specific dry mass, sinking velocity, and apparent diffusivity in field-sampled marine snow,
laboratory-made aggregates formed by diatoms or coccolithophorids, and small and large zoo...
Fish decomposition in boreal lakes and biogeochemical implications
Fish decomposition biogeochemical implications
2014/4/21
A field study in a boreal lake using a remotely operated vehicle equipped with a camera established that falling
fish carcasses did not tend to be buried in sediments after deposition. Decomposition ...
Probing the microenvironment of freshwater sediment macrofauna: Implications of deposit-feeding and bioirrigation for nitrogen cycling
freshwater sediment macrofauna bioirrigation for nitrogen cycling
2014/5/5
The effect of sediment-dwelling macrofauna on nitrifying bacteria was investigated by direct probing in their
overlapping habitat, i.e., the upper few millimeters of freshwater sediments. Microsensor...
Zinc availability and alkaline phosphatase activity in Emiliania huxleyi: Implications for Zn–P co-limitation in the ocean
Zinc availability alkaline phosphatase activity
2014/4/23
Zinc (Zn) serves as a cofactor in several extracellular phosphatases, which allow microorganisms to acquire
phosphorus from organic P compounds. In oligotrophic ocean water, where both phosphate and ...
Factors controlling d13C values of sedimentary carbon in hypertrophic Baldeggersee, Switzerland, and implications for interpreting isotope excursions in lake sedimentary records
Factors controlling d13C values sedimentary carbon in hypertrophic Baldeggersee Switzerland interpreting isotope excursions lake sedimentary records
2014/5/9
We use stable carbon isotope values (δ13C) in sedimented organic matter and carbonate as proxy indicators of productivity changes in a highly eutrophic to hypertrophic lake. Stable isotope data from a...
Extreme 13C enrichments in a shallow hypereutrophic lake: Implications for carbon cycling
Extreme 13C enrichment shallow hypereutrophic lake carbon cycling
2014/5/19
An analysis of stable carbon isotope (δ13C) ratios in Lake Apopka, Florida, reveals extreme 13C enrichments of dissolved inorganic carbon (DIC) pools in the water column and sediment pore water of thi...
Cryptic coloration and mirrored sides as camouflage strategies in near-surface pelagic habitats: Implications for foraging and predator avoidance
mirrored sides camouflage strategies near-surface pelagic habitats foraging and predator avoidance
2014/5/20
Mirrored and colored surfaces are common adaptations for crypsis in pelagic habitats. Although highly successful when optimized for a particular situation, either may become less successful if it is t...
Iron-sulfur-phosphorus cycling in the sediments of a shallow coastal bay: Implications for sediment nutrient release and benthic macroalgal blooms
Iron-sulfur-phosphorus cycling in the sediments shallow coastal bay:sediment nutrient release benthic macroalgal blooms
2014/5/26
We conducted a study to determine the seasonal relationship between iron, sulfur, and phosphorus in the upper sediments and pore waters of a shallow intercoastal bay. From April 1999 to September 2000...