搜索结果: 1-15 共查到“海洋生物学 grazing”相关记录18条 . 查询时间(0.056 秒)
Grazing and Zooplankton Production as Key Controls of Phytoplankton Production in the Open Ocean
Coast phytoplankton pigment waters physical oceanography
2015/8/17
Thanks to NASA's Coastal Zone Color Scanner (CZCS, 1978-1986), nearly ocean-wide coverage of the distribution of phytoplankton pigment in the upper part of the euphotic zone and, in effect, in the mix...
Ecology of a Chaetoceros socialis Lauder Patch on Georges Bank: Distribution, Microbial Associations, and Grazing Losses
Georges Bank: Distribution Microbial Associations
2015/8/6
The presence of patches and layers in marine pelagic ecosystems may play an important role in providing food for higher trophic levels at concentrations high enough to support the metabolism, growth, ...
Intense Benthic Grazing on Phytoplankton in Coral Reefs Revealed Using the Control Volume Approach
Coral Reefs Revealed Control Volume Approach
2015/8/5
What is our international investment in oceanography, and how has it changed over the years? Two seemingly simple questions that have daunted our community repeatedly. The first of these two questions...
Does warming enhance the effect of microzooplankton grazing on marine phytoplankton in the ocean?
warming enhance the effect of microzooplankton grazing marine phytoplankton in the ocean
2014/4/2
We evaluated a hypothesis derived from the metabolic theory of ecology (MTE) that the ratio of microzooplankton herbivory (m) to phytoplankton growth (m) will arise in a warming ocean because of the d...
Local genetic adaptation to grazing pressure of the green algaDesmodesmus armatusin a strongly connected pond system
Local genetic adaptation grazing pressure the green alga Desmo desmus armatusin strongly connected pond system
2014/4/17
Dispersal potentially homogenizes genetic variation among populationsand thus may prevent local genetic adaptation. If selection gradients are strong and the selection responseefficient, however, loca...
Relationships between phytoplankton growth and cell size in surface oceans: Interactive effects of temperature, nutrients, and grazing
phytoplankton growth cell size in surface oceans Interactive effects temperature nutrients grazing
2014/4/17
We compile two data sets from14C uptake and dilution experiments conducted in surface waters of the global ocean to investigate the relationship between phytoplankton mass-specific growth rate and cel...
Intense benthic grazing of phytoplankton in a coral reef
Intense benthic grazing of phytoplankton coral reef
2014/4/18
Grazing on phytoplankton by a section of the fringing coral reef in Eilat, the Gulf of Aqaba, Red Sea, was studied using the control-volume approach, a direct, nonintrusive technique common in enginee...
Intrinsic growth and microzooplankton grazing on toxigenicPseudo-nitzschiaspp. diatoms from the coastal northeast Pacific
growth microzooplankton grazing xigenicPseudo-nitzschiaspp diatoms northeast Pacific
2014/4/18
We investigated the population ecology of toxigenic diatoms within the genusPseudo-nitzschiaon the Pacific Northwest coast during 2003, 2004, and 2005.Pseudo-nitzschiaspp. were widespread and abundant...
Chemical defense of the red tide dinoflagellate Karenia brevis against rotifer grazing
Chemical defense red tide dinoflagellate Karenia brevis against rotifer grazing
2014/4/22
In order to test whether phytoplankton such as the red tide dinoflagellate Karenia brevis negatively affect rotifer grazers and what mechanisms are involved in these interactions, we conducted laborat...
The relative significance of viral lysis and microzooplankton grazing as pathways of dimethylsulfoniopropionate (DMSP) cleavage: An Emiliania huxleyi culture study
viral lysis microzooplankton grazing pathways of dimethylsulfoniopropionate Emiliania huxleyi culture
2014/4/22
Dimethylsulfoniopropionate (DMSP) cleavage was investigated during culture studies of grazing by the microzooplankter Oxyrrhis marina and viral lysis by Emiliania huxleyi virus 86 (EhV-86) on two axen...
Microzooplankton grazing in the coastal Gulf of Alaska: Variations in top-down control of phytoplankton
Microzooplankton grazing coastal Gulf of Alaska Variations top-down contro phytoplankton
2014/4/22
Microzooplankton grazing rates on three phytoplankton size fractions (<5, 5-20, and >20 μm) were measured during spring and summer 2001 in the northern coastal Gulf of Alaska (CGOA). To a first approx...
The effects of grazing by the snail, Lymnaea elodes, on benthic N2 fixation and primary production in oligotrophic, arctic lakes
snail Lymnaea elodes on benthic N2 fixation primary production oligotrophic arctic lakes
2014/4/21
This study assessed whether grazing by the snail, Lymnaea elodes, limits benthic dinitrogen (N2) fixation and primary production in nitrogen (N)-limited oligotrophic lakes near Toolik Field Station on...
Accounting for grazing dynamics in nitrogen-phytoplankton-zooplankton (NPZ) models
Accounting for grazing dynamics nitrogen-phytoplankton-zooplankton (NPZ) models
2014/4/23
Nitrogen-phytoplankton-zooplankton (NPZ)-type models are widely used to explore the dynamics of marine planktonic ecosystems. Within these models, grazing by zooplankton on phytoplankton that are subj...
Bloom formation in heterocystic nitrogen-fixing cyanobacteria: The dependence on colony size and zooplankton grazing
Bloom formation heterocystic nitrogen-fixing cyanobacteria The dependence on colony size zooplankton grazing
2014/5/19
The success of filamentous nitrogen (N)-fixing cyanobacteria in productive, transiently N-limited freshwaters reflects, in large part, their ability to produce and sustain the activities of specialize...
Impacts of nutrients and grazing mortality on the abundance of Aureococcus anophagefferens during a New York brown tide bloom
nutrients and grazing mortality abundance of Aureococcus anophagefferens a New York brown tide bloom
2014/5/26
Although nutrients and grazing both contribute to the formation of harmful algal blooms, research on these events has rarely considered both factors simultaneously. To ascertain the impact of nutrient...