Chang‐Keun Kang
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View article: Correction: Seo et al. Identification of Phytoplankton-Based Production of the Clam Corbicula japonica in a Low-Turbidity Temperate Estuary Using Fatty Acid and Stable Isotope Analyses. Water 2023, 15, 1670
Correction: Seo et al. Identification of Phytoplankton-Based Production of the Clam Corbicula japonica in a Low-Turbidity Temperate Estuary Using Fatty Acid and Stable Isotope Analyses. Water 2023, 15, 1670 Open
The journal’s Editorial Office and Editorial Board are jointly issuing a resolution and removal of the Journal Notice linked to this article [...]
View article: Effects of suspended particles on the toxicity of AgNO3 and silver nanoparticles to Daphnia magna: Importance of adsorption of dissolved Ag and dietary pathway
Effects of suspended particles on the toxicity of AgNO3 and silver nanoparticles to Daphnia magna: Importance of adsorption of dissolved Ag and dietary pathway Open
View article: Behavioral patterns of Chum salmon (Oncorhynchus keta) during spawning migration across the coastal water-river continuum in Northeastern Korea
Behavioral patterns of Chum salmon (Oncorhynchus keta) during spawning migration across the coastal water-river continuum in Northeastern Korea Open
Korea's northeastern coastal waters (NECWs) represent the southwestern range of chum salmon (Oncorhynchus keta), spanning temperate and boreal zones. However, understanding their migration to the NECWs in association with environmental cha…
View article: Seasonal Water-Column Structure Drives the Trophic Niche of Fish Communities on a Temperate Continental Shelf
Seasonal Water-Column Structure Drives the Trophic Niche of Fish Communities on a Temperate Continental Shelf Open
In seasonally stratified marine environments, the dynamics of benthic–pelagic coupling plays a crucial role in shaping food web structures and fisheries production. We examined fish food web structures across three distinct shelf areas in …
View article: Monsoonal impacts on the community trophic niches in two temperate headwater tributaries across a land use continuum
Monsoonal impacts on the community trophic niches in two temperate headwater tributaries across a land use continuum Open
Pulsed flows following heavy monsoon rain events alter riverine food webs, but their impact on headwater stream food webs across the continuum from forested canopy to open agricultural land use remains unclear. We investigated carbon and n…
View article: Insight into the Population Genetics of the Walleye Pollock Gadus chalcogrammus (Pallas, 1814) in the Northwestern Pacific from Microsatellite Multiplex Assay Study
Insight into the Population Genetics of the Walleye Pollock Gadus chalcogrammus (Pallas, 1814) in the Northwestern Pacific from Microsatellite Multiplex Assay Study Open
The walleye pollock, Gadus chalcogrammus (Pallas, 1814), is one of the most commercially and ecologically valuable species in the Northwestern Pacific. However, combined pressures of overfishing and environmental changes have led to a subs…
View article: Behavioral patterns of Chum salmon (Oncorhynchus keta) during spawning migration across the coastal water-river continuum in Northeastern Korea
Behavioral patterns of Chum salmon (Oncorhynchus keta) during spawning migration across the coastal water-river continuum in Northeastern Korea Open
Korea’s northeastern coastal waters (NECWs) represent the southwestern range of chum salmon (Oncorhynchus keta), spanning temperate and boreal zones. However, understanding their migration to the NECWs in association with environmental cha…
View article: Trophic niche of a neustonic copepod community sustained by local production in high- and low-salinity summer water masses in the northeastern East China Sea
Trophic niche of a neustonic copepod community sustained by local production in high- and low-salinity summer water masses in the northeastern East China Sea Open
We investigated the trophic dynamics between neustonic copepod communities and particulate organic matter (POM) sourced from contrasting water masses, i.e., high- and low-salinity areas, within the northeastern East China Sea. The sampling…
View article: Spatial-Temporal Impacts of Invasive Spartina Anglica on the Rates and Pathways of Organic Carbon Mineralization and Resulting C-Fe-S Cycles in the Intertidal Wetland of the Han River Estuary, Yellow Sea
Spatial-Temporal Impacts of Invasive Spartina Anglica on the Rates and Pathways of Organic Carbon Mineralization and Resulting C-Fe-S Cycles in the Intertidal Wetland of the Han River Estuary, Yellow Sea Open
View article: Identification of Phytoplankton-Based Production of the Clam Corbicula japonica in a Low-Turbidity Temperate Estuary Using Fatty Acid and Stable Isotope Analyses
Identification of Phytoplankton-Based Production of the Clam Corbicula japonica in a Low-Turbidity Temperate Estuary Using Fatty Acid and Stable Isotope Analyses Open
The brackish water clam, Corbicula japonica, acts as an ecosystem engineer in estuaries. To identify its resource-use patterns in the low-turbidity temperate Seomjin River estuary of Korea, we analyzed stable isotope and fatty acid (FA) bi…
View article: Sharing Scientific Evidence of the Response of Aquatic Animals to Environmental Change
Sharing Scientific Evidence of the Response of Aquatic Animals to Environmental Change Open
Aquatic animals, which are ecologically important consumers in aquatic ecosystems and widely distributed in rivers, lakes, and seas, which occupy 70% of the earth’s surface, respond in unique ways to environmental changes at various tempor…
View article: Longitudinal Trends in a Community Trophic Niche in Two Temperate Tributaries Across Forested and Agricultural Watersheds Pre- and Post-Monsoon
Longitudinal Trends in a Community Trophic Niche in Two Temperate Tributaries Across Forested and Agricultural Watersheds Pre- and Post-Monsoon Open
View article: Trophic Assessment of Red Seabream (Pagrus Major) as a Possible Bioindicator of Human Activities in the South Sea of Korea Using Stable C and N Isotopes
Trophic Assessment of Red Seabream (Pagrus Major) as a Possible Bioindicator of Human Activities in the South Sea of Korea Using Stable C and N Isotopes Open
View article: Dietary Changes in the Ark Clam (Anadara kagoshimensis) Is Associated with Phytoplankton Community Patterns in a Temperate Coastal Embayment
Dietary Changes in the Ark Clam (Anadara kagoshimensis) Is Associated with Phytoplankton Community Patterns in a Temperate Coastal Embayment Open
The monthly phytoplankton communities and dietary items of the filter-feeding ark clam (Anadara kagoshimensis) in cultivation were examined in a shallow temperate coastal embayment of Yeoja Bay in Korea, to identify dietary changes in clam…
View article: A Study on the Possibility of Early Warning for Cochlodinium polykrikoides Blooms, Using Molecular Methods
A Study on the Possibility of Early Warning for Cochlodinium polykrikoides Blooms, Using Molecular Methods Open
The occurrence of HABs is known to be affected by multiple environmental factors such as temperature, salinity, nutrients, light, water chemistry, and biological activity. This study aimed to study the possibility of early warning for Coch…
View article: Variations in Phytoplankton Primary Production Driven by the Pacific Decadal Oscillation in the East/Japan Sea
Variations in Phytoplankton Primary Production Driven by the Pacific Decadal Oscillation in the East/Japan Sea Open
The Pacific Decadal Oscillation (PDO) regime is a major factor not only for the physical properties of the ocean but also for fishery and water resources. However, only a few studies have examined the impact of the PDO on the marine ecosys…
View article: Seasonal energetic physiology in the ark shell Anadara kagoshimensis in response to rising temperature
Seasonal energetic physiology in the ark shell Anadara kagoshimensis in response to rising temperature Open
Knowledge of physiological responses of important shellfish species to rising temperatures is crucial in assessing the impacts of climate change on marine aquaculture production. The physiological components of energy balance that support …
View article: Dominance of autochthonous trophic base in northeast Asian stream food webs pre- and post-monsoon
Dominance of autochthonous trophic base in northeast Asian stream food webs pre- and post-monsoon Open
View article: Recovery of Macrobenthic Food Web on Rocky Shores Following the Hebei Spirit Oil Spill as Revealed by C and N Stable Isotopes
Recovery of Macrobenthic Food Web on Rocky Shores Following the Hebei Spirit Oil Spill as Revealed by C and N Stable Isotopes Open
The impact of large-scale oil spills on organisms can lead to modifications of the food web structure. To assess the effects of the Hebei Spirit oil-spill accident on the trophic structure of the macrobenthic community on intertidal rocky …
View article: Satellite-Observed Chlorophyll-a Concentration Variability in the East Sea (Japan Sea): Seasonal Cycle, Long-Term Trend, and Response to Climate Index
Satellite-Observed Chlorophyll-a Concentration Variability in the East Sea (Japan Sea): Seasonal Cycle, Long-Term Trend, and Response to Climate Index Open
In this study, to determine the spatiotemporal variability of satellite-observed chlorophyll- a (Chl- a ) concentrations in the East Sea (Japan Sea, EJS), monthly composite images were generated via noise processing using Level-2 MODIS Chl…
View article: Phylogenetic diversity and spatiotemporal dynamics of bacterial and microeukaryotic plankton communities in Gwangyang Bay of the Korean Peninsula
Phylogenetic diversity and spatiotemporal dynamics of bacterial and microeukaryotic plankton communities in Gwangyang Bay of the Korean Peninsula Open
View article: Impact of Shifting Subpolar Front on Phytoplankton Dynamics in the Western Margin of East/Japan Sea
Impact of Shifting Subpolar Front on Phytoplankton Dynamics in the Western Margin of East/Japan Sea Open
A subpolar front (SPF) generated between the East Korea Warm Current (EKWC) and the North Korea Cold Current (NKCC) in the western margin of the East/Japan Sea has shifted northward in recent decades. This study investigated the biomass an…
View article: Co-occurrence of Bacillariophyceae-based- and Cryptophyceae-based planktonic food webs in a temperate estuarine ecosystem revealed via eDNA
Co-occurrence of Bacillariophyceae-based- and Cryptophyceae-based planktonic food webs in a temperate estuarine ecosystem revealed via eDNA Open
We examined microbial food webs in Seomjin River and Gwangyang Bay in South Korea, using 18S rRNA amplicon sequencing of environmental DNA (eDNA) with a weighted gene correlation network analysis (WGCNA) – Cytoscape analysis, considering v…
View article: Elevated temperature relieves phosphorus limitation of marine unicellular diazotrophic cyanobacteria
Elevated temperature relieves phosphorus limitation of marine unicellular diazotrophic cyanobacteria Open
The warming ocean is expected to be more phosphorus (P) limited due to increasing stratification. P is a major limiting nutrient of marine diazotrophs, while the interactive effect of temperature elevation and P limitation on marine unicel…
View article: Biochemical Composition of Seston Reflecting the Physiological Status and Community Composition of Phytoplankton in a Temperate Coastal Embayment of Korea
Biochemical Composition of Seston Reflecting the Physiological Status and Community Composition of Phytoplankton in a Temperate Coastal Embayment of Korea Open
The biochemical composition of seston along a salinity gradient were examined in the low-turbidity, temperate, estuarine embayment, Gwangyang Bay in Korea. Seasonal variations in sestonic protein (PRT), carbohydrate (CHO), and lipid (LIP) …
View article: Phytoplankton Fuel Fish Food Webs in a Low-Turbidity Temperate Coastal Embayment: A Stable Isotope Approach
Phytoplankton Fuel Fish Food Webs in a Low-Turbidity Temperate Coastal Embayment: A Stable Isotope Approach Open
Trophic contributions of diverse OM sources to estuarine and coastal food webs differ substantially across systems around the world, particularly for nekton (fish, cephalopods, and crustaceans), which utilize basal resources from multiple …
View article: Trophic Enrichment Factors of Carbon and Nitrogen Isotopic Ratios (Δ13C and Δ15N) in Four Marine Ciliates
Trophic Enrichment Factors of Carbon and Nitrogen Isotopic Ratios (Δ13C and Δ15N) in Four Marine Ciliates Open
Understanding the magnitude and causes of isotopic fractionation between organisms and their dietary resources is crucial for gaining knowledge on stable isotope ecology. However, little is known regarding the diet-tissue fractionation val…
View article: Water Quality Improvement Shifts the Dominant Phytoplankton Group From Cryptophytes to Diatoms in a Coastal Ecosystem
Water Quality Improvement Shifts the Dominant Phytoplankton Group From Cryptophytes to Diatoms in a Coastal Ecosystem Open
We investigated long-term variations in the dominant phytoplankton groups with improvements in water quality over 11 years in the Yeongil Bay on the southeastern coast of Korea. River discharge declined during the study period but TN from …
View article: Food Web Trophic Structure at Marine Ranch Sites off the East Coast of Korea
Food Web Trophic Structure at Marine Ranch Sites off the East Coast of Korea Open
Understanding the trophic ecology of the giant Pacific octopus Enteroctopus dofleini is challenging in developing marine ranches and in reestablishing its regional stocks against the severe stress of fishing. We adopted carbon and nitrogen…
View article: Characteristics of Different Size Phytoplankton for Primary Production and Biochemical Compositions in the Western East/Japan Sea
Characteristics of Different Size Phytoplankton for Primary Production and Biochemical Compositions in the Western East/Japan Sea Open
The current phytoplankton community structure is expected to change, with small phytoplankton becoming dominant under ongoing warming conditions. To understand and evaluate the ecological roles of small phytoplankton in terms of food quant…