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Iron and copper limitations differently affect growth rates and photosynthetic and physiological parameters of the marine diatom Pseudo-nitzschia delicatissima
Iron and copper limitations differently affect growth rates photosynthetic and physiological parameters marine diatom Pseudo-nitzschia delicatissima
2014/4/2
In ～ 50% of the ocean, iron (Fe) limits phytoplankton growth, including that of the diatom Pseudo-nitzschia. Fe-limited Pseudo-nitzschia spp. may produce the potent neurotoxin domoic acid (DA) to acce...
We consider a linear model of a topographically induced shear instability, described by Pedlosky (1980). The perturbation technique used by Pedlosky, to establish the existence of unstable normal mode...
Fatigue crack growth rates of rotor steel at elevated temperatures
rotor steels (30CrlMolV) fatigue crack propagation rate temperature
2011/9/14
Low fatigue samples were obtained from the outer edges of rotor steel (30CrlMolV) which had operated under different temperatures conditions.Based on this data,the effects of temperature on fatigue cr...
Predicting marine phytoplankton maximum growth rates from temperature:Improving on the Eppley curve using quantile regression
marine phytoplankton maximum growth rates temperature:Improving the Eppley curve quantile regression
2014/4/21
The Eppley curve describes an exponential function that defines the maximum attainable daily growth rate of marine phytoplankton as a function of temperature. The curve was originally fitted by eye as...
CO2 control of Trichodesmium N2 fixation, photosynthesis, growth rates, and elemental ratios: Implications for past, present, and future ocean biogeochemistry
CO2 control Trichodesmium N2 fixation photosynthesis growth rates elemental ratios past present future ocean biogeochemistry
2014/4/22
Diazotrophic marine cyanobacteria in the genus Trichodesmium contribute a large fraction of the new nitrogen entering the oligotrophic oceans, but little is known about how they respond to shifts in g...
Does low temperature constrain the growth rates of heterotrophic protists? Evidence and implications for algal blooms in cold waters
low temperature growth rates of heterotrophic protists Evidence and implications algal blooms cold waters
2014/4/23
Literature review and synthesis of growth rates of aquatic protists focused on the role of temperature in the formation of massive annual algal blooms in high-latitude ecosystems. Maximal growth rates...
Diatom fatty acid biomarkers indicate recent growth rates in Antarctic krill
Diatom fatty acid biomarkers indicate growth rates Antarctic krill
2014/5/9
We investigated the relationship between nutritional condition (levels of specific fatty acids) and growth increment (percentage growth per intermoult period, percentage IMP-1) for Antarctic krill (Eu...
Phytoplankton growth rates in the Atlantic subtropical gyres
Phytoplankton growth rates Atlantic subtropical gyres
2014/5/8
Reported estimates of phytoplankton growth rate (μ) in the subtropical gyres range widely from 0.1-0.2 to 1-2 d-1. Dividing chlorophyll a (Chl a)-normalized photosynthesis (PB) by the phytoplankton ca...
Growth rates, half saturation constants, and silicate, nitrate, and phosphate depletion in relation to iron availability of four large open-ocean diatoms from the Southern Ocean
Growth rates half saturation constants silicate, nitrate phosphate depletion relation to iron availability four large open-ocean diatoms Southern Ocean
2014/5/19
Four large, open-ocean diatoms from the Southern Ocean (Actinocyclus sp., Thalassiosira sp., Fragilariopsis kerguelensis, and Corethron pennatum) were grown in natural (low iron) Southern ocean seawat...
Growth rates of Antarctic krill, Euphausia superba: Comparison of the instantaneous growth rate method with nitrogen and phosphorus stoichiometry
Growth rates of Antarctic krill Euphausia superba Comparison of the instantaneous growth rate method with nitrogen phosphorus stoichiometry
2014/5/19
Zooplankton growth rates are hard to measure directly, and proxy measurements are desirable to encompass the variety of species and scales of interest. The growth rate hypothesis of stoichiometric the...
Growth rates of coastal phytoplankton from time-series measurements with a submersible flow cytometer
coastal phytoplankton time-series measurements submersible flow cytometry
2014/5/21
Our understanding of the dynamics of phytoplankton communities has been limited by the space and timescales associated with traditional monitoring approaches. To overcome some of these limitations, we...
Chemical defense in the microplankton I: Feeding and growth rates of heterotrophic protists on the DMS-producing phytoplankter Emiliania huxleyi
Chemical defense Feeding growth rates
2014/5/20
In this study, the hypothesis that Emiliania huxleyi, a cosmopolitan, bloom-forming coccolithophorid, produces
chemical defenses against protist grazers was tested using four axenic strains of the al...
Growth rates of large and small Southern Ocean diatoms in relation to availability of iron in natural seawater
Growth rates of large small Southern Ocean
2014/5/30
Blooms of large diatoms dominate the CO2
drawdown and silicon cycle of the Southern Ocean in both the past
and present. The growth of these Antarctic diatoms is limited by availability of iron (and ...
Rapid estimation of in situ growth rates of Caridina nilotica (Crustacea: Decapoda) in Lake Victoria: Description and pilot application of a simple, field-compatible technique
Rapid estimation situ growth rates Caridina nilotica Crustacea: Decapoda Lake Victoria Description pilot application of a simple field-compatible technique
2014/6/9
A simple rapid approach to estimating in situ growth rates of Caridina nilotica (Roux), a small shrimp that plays a pivotal role in Lake Victoria's food web, is described. The approach, potentially ap...