A5026856880- Marine and coastal ecosystems
- Marine Biology and Ecology Research
- Microbial Community Ecology and Physiology
- Marine Toxins and Detection Methods
- Isotope Analysis in Ecology
- Aquatic Ecosystems and Phytoplankton Dynamics
- Marine Bivalve and Aquaculture Studies
- Marine and coastal plant biology
- Environmental DNA in Biodiversity Studies
- Bacteriophages and microbial interactions
- Coastal wetland ecosystem dynamics
- Marine and fisheries research
- Reservoir Engineering and Simulation Methods
- Diverse Aspects of Tourism Research
- Food Industry and Aquatic Biology
- Groundwater flow and contamination studies
- Protist diversity and phylogeny
- Land Use and Ecosystem Services
- Fern and Epiphyte Biology
- Economic and Environmental Valuation
- Wastewater Treatment and Nitrogen Removal
- Coastal and Marine Management
- Engineering Applied Research
- Hydraulic Fracturing and Reservoir Analysis
- Oil Spill Detection and Mitigation
Chonnam National University
2020-2025
Stony Brook University
2001-2022
Gwangju Institute of Science and Technology
2019
Stony Brook School
2016
University of Miami
2011
State University of New York
2001
Global ocean temperatures are rising, yet the impacts of such changes on harmful algal blooms (HABs) not fully understood. Here we used high-resolution sea-surface temperature records (1982 to 2016) and temperature-dependent growth rates two algae that produce potent biotoxins, Alexandrium fundyense Dinophysis acuminata, evaluate recent in these HABs. For both species, potential mean annual duration bloom seasons significantly increased within many coastal Atlantic regions between 40°N 60°N,...
Many giant dsDNA algal viruses share a common ancestor with Mimivirus —one of the largest viruses, in terms genetic content. Together, these form proposed 'Megaviridae' clade nucleocytoplasmic large DNA viruses. To gauge Megaviridae diversity, we designed degenerate primers targeting major capsid protein genes algae-infecting within this group and probed clade's diversity during course brown tide bloom caused by harmful pelagophyte, Aureococcus anophagefferens. We amplified target sequences...
We examined the dynamics of dinoflagellate cyst and phytoplankton assemblages in eutrophic coastal waters Korea, adjacent to fish shellfish farms. Water temperature showed seasonality, whereas salinity pH remained relatively consistent. Dissolved inorganic nutrient levels were higher September at inner stations, where aquaculture farms are located than those May outer stations. Canonical correspondence analysis artificial neural network revealed multiple environmental factors that affect...
This study evaluates cultural ecosystem services (CESs) provided by coastal beaches in Korea using two valuation methods: choice experiments (CEs) and the energy method (EM). CESs, which include non-material benefits like recreation esthetic enjoyment, are difficult to quantify through traditional market-based approaches. The CE estimates individuals’ willingness pay (WTP), offering an economic valuation, while EM calculates inputs required sustain providing a biophysical perspective....
A general discussion of the quantification uncertainty in numerical simulations is presented. principal conclusion that distribution solution errors leading term assessment validity a simulation and its associated Bayesian framework. Key issues arise are discussed for two examples drawn from shock wave physics modeling petroleum reservoirs. Solution error models, confidence intervals Gaussian statistics based on studies
We investigated long-term variations in the dominant phytoplankton groups with improvements water quality over 11 years Yeongil Bay on southeastern coast of Korea. River discharge declined during study period but TN from river remained stable, indicating input enriched nutrients to bay was fairly consistent. NH 4 + levels decreased a decrease POSCO industrial complex. While region characterized by P-limited and deficient environment, cryptophytes dominated intensified P-limitations. The...
ABSTRACT During the past 3 decades, brown tides caused by pelagophytes Aureococcus anophagefferens and Aureoumbra lagunensis have ecological economic damage to coastal ecosystems across globe. While blooms of A. had previously been confined Texas, in 2012, an expansive tide occurred on Florida's East Coast, causing widespread disruption within Indian River Mosquito Lagoons generating renewed interest this organism. A major impediment detailed investigations ecosystem setting has absence a...
During the past century, bivalve populations across globe have collapsed, resulting in negative ecosystem consequences due to their outsized impact on shallow estuaries. In response, there has been strong interest restoration of marine populations. Here, we present a decade-long effort that sought rebuild collapsed (99.5% reduction harvest) and recruitment-limited population hard clams ( Mercenaria mercenaria ) Shinnecock Bay, NY, USA, using spawner sanctuaries: no-harvest zones where adults...
Allelopathy is a biological mechanism that can promote harmful algal blooms (HAB) via the inhibition of sympatric phytoplankton. While nutrient loading also HABs, ability allelopathy to stimulate HABs regeneration nutrients has yet be explored. To examine impacts allelopathically liberated N on HAB species, series experiments were performed using multiple allelopathic species including dinoflagellates Alexandrium catenella and Margalefidinium polykrikoides, pelagophyte, Aureoumbra...
Abstract Allelopathy is an ecological strategy that can facilitate the occurrence of algal blooms. Here, we describe ability harmful pelagophytes, Aureoumbra lagunensis isolated from coastal waters Cuba, Florida, and Texas Aureococcus anophagefferens (CCMP1785, CCMP1984) New York, U.S.A., to inhibit growth potentially co‐occurring phytoplankton. The allelopathic effects brown tide algae were broad strong with both whole cells culture filtrate causing 10–96% reductions in cell abundance...
There is growing interest in the use of metatranscriptomics to study virus community dynamics. We used RNA samples collected from harmful brown tides caused by eukaryotic alga Aureococcus anophagefferens within New York (United States) estuaries and process observed how preprocessing libraries either selection for polyadenylation or reduction ribosomal (rRNA) influenced analyses. As expected, more reads mapped A. genome polyadenylation-selected compared rRNA-reduced libraries, with each...
We investigated the trophic dynamics between neustonic copepod communities and particulate organic matter (POM) sourced from contrasting water masses, i.e., high- low-salinity areas, within northeastern East China Sea. The sampling of occurred three times in summer (June, August, September) 2021, considered influx Yangtze River Diluted Water (YRDW) extension Tsushima Warm Current (TWC). To examine relationship copepods surface POM, we employed stable isotope techniques. Surprisingly,...
To date, the life stages of pelagophytes have been poorly described. This study describes ability Aureoumbra lagunensis to enter a resting stage in response environmental stressors including high temperature, nutrient depletion, and darkness as well their revert from cells back vegetative after exposure optimal light, conditions. Resting became round shape larger size, filled with red accumulation bodies, had smaller fewer plastids, more vacuolar space, contained lower concentrations chl RNA...
Barrier island lagoons are the most common type of estuary in world and can be prone to eutrophication as well formation closure ocean inlets via severe storm activity. This study describes biological, chemical, physical changes that occurred along south shore Long Island, NY, USA, following a new inlet eastern Great South Bay (GSB) by Hurricane Sandy October 2012. Time series sampling experiments were performed at multiple locations within GSB neighboring Moriches from 2013 through 2018....
Abstract While 15 N‐labeled nitrogen (N) compounds have been used to quantify N uptake rates by plankton communities for decades, accurately ascribing those individual populations or species has a challenge. Here, we apply sorting flow cytometry combined with species‐specific immuno‐detection of harmful alga, Aureococcus anophagefferens , contrast the nutritional ecology this alga co‐occurring picoplankton (picoeukaryotes, cyanobacteria, heterotrophic bacteria) during brown tides. The method...