An‐Yi Tsai
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View article: Linking viral production to bacteria mortality and carbon cycling in the oligotrophic Pacific ocean
Linking viral production to bacteria mortality and carbon cycling in the oligotrophic Pacific ocean Open
Viruses are now a popular significant component of marine ecosystems and recognized as crucial contributors to elemental cycling within the microbial loop. While early study on viral community dynamics paid more focus on coastal environmen…
View article: Turbulence and eddy regional exchange in the western North Pacific: joint oceanic and atmospheric experiment using R/V New Ocean Researcher 1
Turbulence and eddy regional exchange in the western North Pacific: joint oceanic and atmospheric experiment using R/V New Ocean Researcher 1 Open
Sponsored by the National Science and Technology Council of Taiwan, the programs Sailing to the Blue Sea (SBS), Kuroshio to Turbulence Exchange (KTEX), and the U.S.-Taiwan collaboration program Island Arc Turbulent Eddy Regional Exchange (…
View article: Diel dynamics of bacterial and picophytoplankton growth, grazing and viral lysis at different depths in the tropical South China Sea in spring
Diel dynamics of bacterial and picophytoplankton growth, grazing and viral lysis at different depths in the tropical South China Sea in spring Open
To examine the relative importance of nanoflagellate grazing and viral lysis on prokaryote abundance—including heterotrophic bacteria, Synechococcus spp., and Prochlorococcus spp.—in the tropical ocean, a modified dilution technique combin…
View article: Linking Viral Production to Bacteria Mortality and Carbon Cycling in the Oligotrophic Pacific Ocean
Linking Viral Production to Bacteria Mortality and Carbon Cycling in the Oligotrophic Pacific Ocean Open
Viruses are now a popular significant component of marine ecosystems and recognized as crucial contributors to elemental cycling within the microbial loop. While early study on viral community dynamics paid more focus on coastal environmen…
View article: Dynamics of Microbial Abundance in Unvegetated and Seagrass Habitats: A Case Study
Dynamics of Microbial Abundance in Unvegetated and Seagrass Habitats: A Case Study Open
Seagrass meadows are recognized for their ecological importance, yet their influence on microbial community structure remains insufficiently characterized. This study examined the effects of seagrass presence on microbial assemblages in a …
View article: Distinct water mass between inside and outside eddy drive changes in prokaryotic growth and mortality in the tropical Pacific Ocean
Distinct water mass between inside and outside eddy drive changes in prokaryotic growth and mortality in the tropical Pacific Ocean Open
Throughout the western tropical Pacific Ocean, eddies and currents play an important role in biogeochemical cycling. Many studies have investigated the effects of hydrography on vertical patterns of picophytoplankton and heterotrophic bact…
View article: Viral Dynamics in the Tropical Pacific Ocean: A Comparison between Within and Outside a Warm Eddy
Viral Dynamics in the Tropical Pacific Ocean: A Comparison between Within and Outside a Warm Eddy Open
In mesoscale eddies, the chemical properties and biological composition are different from those in the surrounding water due to their unique physical processes. The mechanism of physical–biological coupling in warm-core eddies is unclear,…
View article: Viral dynamics in the tropical Pacific Ocean: a comparison between within and outside warm eddy
Viral dynamics in the tropical Pacific Ocean: a comparison between within and outside warm eddy Open
In mesoscale eddies, chemical properties and biological composition are different from those in surrounding water, due to their unique physical processes. It is unclear how physical-biological coupling occurs in warm-core eddies, particula…
View article: Investigation of the Growth and Mortality of Bacteria and Synechococcus spp. in Unvegetated and Seagrass Habitats
Investigation of the Growth and Mortality of Bacteria and Synechococcus spp. in Unvegetated and Seagrass Habitats Open
There is no doubt that seagrass beds constitute one of the most productive ecosystems in shallow coastal waters. Despite this, picoplankton in seagrass ecosystems has received relatively little attention. The purpose of this study was to c…
View article: Investigation of the Growth and Mortality of Bacteria and <em>Synechococcus</em> spp. in Unvegetated and Seagrass Habitats
Investigation of the Growth and Mortality of Bacteria and <em>Synechococcus</em> spp. in Unvegetated and Seagrass Habitats Open
There is no doubt that seagrass beds constitute one of the most productive ecosystems in shallow coastal waters. Despite this, picoplankton in seagrass ecosystems has received relatively little attention. The purpose of this study was to c…
View article: Differences in Bacterial Growth and Mortality between Seagrass Meadows and Adjacent Unvegetated Areas
Differences in Bacterial Growth and Mortality between Seagrass Meadows and Adjacent Unvegetated Areas Open
A seagrass meadow is one of the most important ecosystems around the world, both economically and ecologically. An important feature of this ecosystem is the presence of large coastal seagrass beds, which dominate the primary production an…
View article: Growth and Mortality Rates of Microbial Communities Respond to Experimental Warming at Different Latitudes During the Cold Season
Growth and Mortality Rates of Microbial Communities Respond to Experimental Warming at Different Latitudes During the Cold Season Open
To evaluate the responses of microbial plankton communities to warming in coastal waters of the Pacific at different latitudes, three in situ microcosms were conducted in Taiwan and Japan during the winter of 2023. Flow cytometry was used …
View article: Differences in Bacterial Growth and Mortality between Seagrass Meadows and Adjacent Unvegetated Areas
Differences in Bacterial Growth and Mortality between Seagrass Meadows and Adjacent Unvegetated Areas Open
In coastal areas around the world, seagrass meadows play a crucial ecological and economic role. A large amount of seagrass beds dominates primary production and contributes to the high secondary productivity of this ecosystem. The microbi…
View article: Differences in viral decay and production following exposure to sunlight and dark
Differences in viral decay and production following exposure to sunlight and dark Open
Although we have gained insight into the biological and biochemical effects of natural sunlight exposure on prokaryotes, little is known about sunlight exposure on natural virus communities. To address this question, an investigation of th…
View article: Trade-Offs between Competitive Ability and Resistance to Top-Down Control in Marine Microbes
Trade-Offs between Competitive Ability and Resistance to Top-Down Control in Marine Microbes Open
We addressed the “kill-the-winner” hypothesis from the perspective of its principle (the competition-resistance trade-off) in marine bacterial communities incubated in situ . Our results supported the existence of competition-resistance tr…
View article: Comparison of Viral Production and Decay Rates at the Surface and Bottom of the Euphotic Zone in the Summertime in the Southern East China Sea
Comparison of Viral Production and Decay Rates at the Surface and Bottom of the Euphotic Zone in the Summertime in the Southern East China Sea Open
Viral dynamics are the result of the balance between the rates of viral production and decay. Here, we have carried out independent measurements of viral production and decay rates in different depths of the southern East China Sea in summ…
View article: Differences in viral decay and production following exposure to sunlight and darkness
Differences in viral decay and production following exposure to sunlight and darkness Open
Although we have gained insight into the biological and biochemical effects of natural sunlight exposure on prokaryotes, little is known about sunlight exposure on natural virus communities. To fully understand the mechanics of microbial f…
View article: Insights into Virus–Prokaryote Relationships in a Subtropical Danshui River Estuary of Northern Taiwan in Summer
Insights into Virus–Prokaryote Relationships in a Subtropical Danshui River Estuary of Northern Taiwan in Summer Open
In spite of the fact that the interactions between environmental parameters and prokaryotic and viral abundance have been explored in various aquatic environments, only a few independent estimates of viral production and decay in the estua…
View article: Annual Cycle of the Synechococcus spp. and Picoeukaryotic Growth and Loss Rates in a Subtropical Coastal Ecosystem
Annual Cycle of the Synechococcus spp. and Picoeukaryotic Growth and Loss Rates in a Subtropical Coastal Ecosystem Open
Seasonal variations in the picophytoplankton community structure (Synechococcus spp. and picoeukaryotes) were studied by flow cytometry in the coastal ecosystem of the subtropical western Pacific from October 2019 to September 2020. Synech…
View article: Cryptophyte and Photosynthetic Picoeukaryote Abundances in the Bransfield Strait during Austral Summer
Cryptophyte and Photosynthetic Picoeukaryote Abundances in the Bransfield Strait during Austral Summer Open
A remarkable shift in the species composition and size distribution of the phytoplankton community have been observed in coastal waters along the Antarctic Peninsula over the last three decades. Smaller photoautotrophs such as cryptophytes…
View article: Effect of the Presence of Virus-like Particles on Bacterial Growth in Sunlit Surface and Dark Deep Ocean Environments in the Southern East China Sea
Effect of the Presence of Virus-like Particles on Bacterial Growth in Sunlit Surface and Dark Deep Ocean Environments in the Southern East China Sea Open
Virus-like particles (VLPs) are thought to increase the dissolved organic carbon by releasing the contents of the host cell, which, in turn, can affect bacterial growth in natural aquatic environments. Yet, experimental tests have shown th…
View article: Trade-off between competition ability and invulnerability to predation in marine microbes; protist grazing versus viral lysis effects
Trade-off between competition ability and invulnerability to predation in marine microbes; protist grazing versus viral lysis effects Open
Trade-offs between competition ability and invulnerability to predation are important mechanisms explaining how predation promotes bacterial diversity. However, existence of these trade-offs has apparently not been investigated in natural …
View article: Response of Growth and Grazing Rate of Nanoflagellates on Synechococcus spp. to Experimental Nutrient Enrichment
Response of Growth and Grazing Rate of Nanoflagellates on Synechococcus spp. to Experimental Nutrient Enrichment Open
As important bacterivores in planktonic food webs, mixotrophic nanoflagellates cancause mortality in marine Synechococcus spp. Our previous study found that the pigmented nanoflagellate (PNF) has a significant grazing impact on Synechococc…