간행물

Korean Journal of Environmental Biology KCI 등재 SCOPUS 환경생물

권호리스트/논문검색
이 간행물 논문 검색

권호

Vol.44 No.2 (142호) (2026년 6월) 9

1.
2026.06 구독 인증기관 무료, 개인회원 유료
This study systematically investigated the vascular plants of Mt. Munhaksan (217 m a.s.l) in Incheon, Korea, aiming to provide essential baseline data for the conservation and management of its plant resources. Prompted by surrounding urban development and the recent public opening of the summit area, a comprehensive re-evaluation of the entire mountain was conducted, building upon a previous survey. Based on 20 field surveys carried out from March to October 2025, the study identified a total of 269 taxa. These comprised 80 families, 191 genera, 239 species, four subspecies, 23 varieties, and three forms. The documented flora included four Korean endemic taxa (e.g., Viola seoulensis and Hemerocallis hakuunensis) and 15 floristic target species. Additionally, 251 taxa (93.3%) were classified as useful resource plants. The survey also recorded 41 invasive alien taxa, leading to a Naturalization Index of 15.2% and an Urbanization Index of 10.5%. Among these were seven ecosystem-disturbing plants, such as Sicyos angulatus and Ageratina altissima. A significant shift in the plant community was observed when comparing these findings to a 2000 survey: 147 taxa were newly recorded, and the Naturalization Index increased from 11.5% to 15.2%. These results highlight accelerating edge effects in this isolated urban ecological island, emphasizing the urgent need for targeted biodiversity conservation policies and proactive management strategies for invasive alien plants.
5,200원
2.
2026.06 구독 인증기관 무료, 개인회원 유료
Cyanobacterial harmful algal blooms (CyanoHABs) are commonly assessed using various methods, including cell counts, biovolume, chlorophyll-a, phycocyanin fluorescence, image-based systems, molecular markers, and cyanotoxin measurements. While these tools have improved substantially, an implementation gap persists: during a bloom event, the most analytically precise measurement may not always be available in time to support critical decisions. This review and operational framework addresses this gap by integrating method-focused evidence from 2018-2025 with major public health guidance. It reframes cyanobacterial enumeration error as both an analytical and a decision problem. We argue that sampling design, scum separation, sample splitting, preservation, exposure-route definition, and decision windows collectively determine whether subsequent measurements can support timely and credible action. We propose an action-first, reference-calibrated framework where rapid field evidence triggers temporary precaution without claiming to be a definitive cell count. In this framework, reference microscopy and image-assisted methods support taxon-specific abundance estimates and characterize colony-related uncertainty, while toxin and genetic assays anchor public health interpretation when biomass indicators and toxin risk diverge. This framework does not lower evidentiary standards or replace national thresholds. Instead, it differentiates evidence standards by purpose: precaution, confirmation, revision, release, and post-event learning.
4,900원
3.
2026.06 구독 인증기관 무료, 개인회원 유료
Seagrass meadows provide a wide range of ecosystem services, including maintaining marine biodiversity, protecting coasts, and stabilizing sediment. They are also recognized as important blue carbon ecosystems due to their high productivity and capacity for long-term organic carbon (Corg) sequestration in sediments. This study assessed the distribution of seagrass meadows and blue carbon storage within Korea’s marine protected areas (MPAs) using monitoring data, research reports, and published scientific literature. Seagrasses were identified in 14 of the 39 designated MPAs, with seven of the nine seagrass species reported along the Korean coast recorded within these MPAs. The total seagrass area within MPAs was estimated at 1.33 km2, accounting for less than 2.5% of the total seagrass extent in Korea. Zostera marina occupied the largest proportion of this area (71.2%), whereas Phyllospadix japonicus and P. iwatensis together accounted for only 8.6% of the total area. However, these two species contributed approximately 55% of the total biomass, indicating substantial interspecific differences in area and biomass contributions. The estimated sediment Corg stock to a depth of 1 m was 9,950 Mg C, while the total organic carbon stock, including seagrass biomass carbon, was estimated at 10,108.8 Mg C. However, research on seagrass within Korean MPAs, as well as evaluations of the ecological effectiveness of MPA designation, remains very limited. This study provides a comprehensive assessment of seagrass conservation status and blue carbon storage within Korean MPAs, offering baseline information for future conservation and management strategies.
4,600원
4.
2026.06 구독 인증기관 무료, 개인회원 유료
Trifloxystrobin (TFS) is a strobilurin fungicide commonly used in agriculture that inhibits mitochondrial respiratory chain complex III in fungi. Given its widespread use, it is crucial to evaluate its toxic effects on aquatic organisms. This study investigated the developmental toxicity and metabolomic changes in zebrafish (Danio rerio) embryos exposed to TFS for up to 96 hours post-fertilization (hpf). TFS exposure significantly reduced the survival and hatching rates of zebrafish embryos in a concentration-dependent manner, with a 96 h LC50 value of 264.9 μg L-1. Morphological analysis revealed several developmental abnormalities, including yolk sac edema, pericardial edema, reduced body length, and severe developmental delay. Metabolomic analysis using GC-TOF-MS demonstrated a clear distinction between control and TFS-treated groups in PLS-DA score plots, indicating significant alterations in metabolic profiles due to TFS exposure. A total of 42 differential metabolites were identified, encompassing organic acids, amino acids, carbohydrates, and fatty acid-related metabolites. Specifically, glutaric acid, glyceric acid, citric acid, and several fatty acid derivatives increased in the TFS-treated group, while oxalic acid, fumaric acid, malic acid, glucose, and fructose decreased. Pathway enrichment analysis highlighted significant disruptions in fatty acid biosynthesis, the TCA cycle, amino acid metabolism, and carbohydrate metabolism pathways. These findings indicate that TFS exposure interferes with multiple metabolic pathways critical for energy metabolism and developmental processes in zebrafish embryos, thereby suggesting potential ecological risks associated with TFS contamination in aquatic environments.
4,300원
5.
2026.06 구독 인증기관 무료, 개인회원 유료
This study investigated the relationship between microhabitat structure, environmental factors, and wildlife occurrence patterns in logged and thinned forests. We surveyed medium- and large-sized mammals, small mammals, and birds at 34 sites in Changwon, Changnyeong, and Uljin, South Korea. These sites included forests one and ten years after thinning or logging. Medium- and large-sized mammals were monitored using camera traps, small mammals were captured using Sherman live traps, and birds were recorded using line transect and point count methods. Habitat variables included forest density, vertical canopy cover, plant species composition, and landscape- and human-related factors. We used non-metric multidimensional scaling (NMDS), analysis of similarities (ANOSIM), similarity percentage analysis (SIMPER), and self-organizing map (SOM) analyses to assess species occurrence patterns and their relationships with environmental variables. Our results showed that forest density, vertical vegetation structure, and dominant plant species composition varied among forestry practice types and time-since-management classes. Medium- and large-sized mammal species composition exhibited partial differences among practice types and was associated with forest density and understory structure. In contrast, bird and small mammal species composition was not clearly differentiated by practice type alone, although species-level occurrence patterns were associated with forest density, understory cover, and human disturbance. Overall, microhabitat structure and environmental conditions, rather than practice type, were more strongly associated with species-level occurrence patterns. These findings highlight the importance of maintaining forest density, understory development, and habitat connectivity in managed forests.
4,900원
6.
2026.06 구독 인증기관 무료, 개인회원 유료
This study reports seven new records of marine gastropod species from Korean waters: Marsenina uchidai, Littoraria sinensis, Conus litteratus, Pleurobranchus forskalii, Placida dendritica, Placida kevinleei, and Thuridilla lineolata. Notably, this marks the first documentation of the genus Marsenina in Korea. Specimens were collected from various locations along the Korean coast, including Goseong and Yangyang (Gangwon-do), Dokdo, Bito Island (Sacheon, Gyeongsangnam-do), and Jeju Island, between February 2025 and March 2026. Each species identification was based on diagnostic morphological characters and supported by photographs of living individuals or preserved specimens. Uncorrected p-distance analyses and maximum-likelihood (ML) phylogenetic reconstructions, using COI sequences, confirmed the taxonomic identities of the specimens. Among the species studied, Conus literatus and Placida dendritica showed significantly higher intraspecific genetic divergences compared to the other taxa, indicating a need for further taxonomic and population-level research. These findings enrich the existing inventory of marine gastropod biodiversity in Korean waters and offer foundational data for future taxonomic and biogeographic studies.
5,400원
7.
2026.06 구독 인증기관 무료, 개인회원 유료
This study assessed the benthic macroinvertebrate community structure and aquatic environmental conditions in the eastern Hallyeohaesang National Park. From April to August 2024, three surveys at eight sites in Tongyeong-Hansan and Geoje- Haegeumgang identified 90 species from 4 phyla, with an average density of 4,743 individuals per square meter (ind.m-2). Trichoptera (23 species) and Ephemeroptera (17 species) were the most diverse orders, while non-insect taxa constituted approximately 30% of the total individuals. Functional analysis revealed clingers (CL) and collecting gatherers (CG) as the dominant habitat and feeding groups, respectively. Community analysis indicated that Site 1 had an unstable structure, characterized by a high Dominance Index (DI) and low Diversity Index (H’), Evenness Index (E), and Richness Index (RI). Conversely, Site 4 exhibited the most stable community. Biological water quality assessments, using the Total Ecological Score of Benthic Macroinvertebrate Community (TESB) and Average Ecological Score of Benthic Macroinvertebrate Community (AESB), largely showed Grade A to B quality across most sites. However, Site 1 received a Grade C for TESB, attributed to artificial bottom substrates. Cluster analysis, employing the Bray-Curtis similarity index based on species composition and abundance, grouped the survey sites into three distinct clusters, reflecting variations in surrounding land use and habitat structure. TESB correlated positively with species diversity, richness, and evenness. AESB showed a positive correlation with dissolved oxygen (DO) and negative correlations with water temperature (WT), pH, and electrical conductivity (EC). These results underscore the high sensitivity of these low-flow aquatic ecosystems to environmental factors, emphasizing the critical need for continuous monitoring to ensure their conservation against climate change and non-point source pollution.
4,800원
8.
2026.06 구독 인증기관 무료, 개인회원 유료
The milky fiddler crab (Austruca lactea) is a benthic macroinvertebrate that plays a crucial role in maintaining the functions of tidal flat ecosystems and is classified as an endangered species in Korea. In this study, we used an exponential saturation model to estimate the population density of A. lactea across different sites and to determine optimal survey durations. We established 15 quadrats measuring 1×1 m in the tidal flats of Shindo and 12 in Boryeong, recording cumulative detections over time. The estimated population densities were 6.95 individuals m-2 (95% CI: 4.42-10.54) in Boryeong and 10.00 individuals m-2 (95% CI: 6.56-15.24) in Shindo. The estimated survey times required to detect 99% of individuals present within the plots were 312.2 seconds in Boryeong and 548.7 seconds in Shindo. The exponential saturation model allows for quantitative correction of imperfect detectability, facilitating reliable estimation of population density even with limited survey time. This study offers a practical and reproducible methodological framework for monitoring populations of endangered species.
4,200원
9.
2026.06 구독 인증기관 무료, 개인회원 유료
This study examined the spatio-temporal microhabitat use of the introduced Formosan sika deer (Cervus nippon taiouanus) by analyzing their spatial and temporal behavioral patterns. From July 2022 to May 2023, hourly GPS locations were recorded for two individuals (one female and one male) in Songnisan National Park, South Korea, using collar-mounted GPS devices. Principal component analysis (PCA) and k-means clustering of habitat attributes revealed that even within the same individual, different microhabitat types were selected based on variations in elevation, slope, and forest structure. Kernel density analyses of the time-stamped locations indicated clear temporal differentiation in habitat use among clusters. Specifically, activity during crepuscular hours (i.e., sunrise and sunset) concentrated in areas of higher elevation and steeper slopes, dominated by mixed or deciduous forests, while the deer were more frequently found at lower elevations, gentler slopes, and in coniferous forests. These findings suggest that Formosan sika deer utilize functionally distinct microhabitats to alternate between foraging and resting behaviors in line with their circadian rhythms. This spatio-temporal differentiation likely represents a behavioral strategy to optimize physiological needs throughout the day and enables flexible responses to environmental conditions in Korean landscapes. This study offers foundational insights into the habitat use patterns of this invasive species and may inform management strategies and assessments of spatial competition with native ungulates. However, due to the limited number of individuals monitored, further longterm research with a larger sample size is necessary for broader generalization
4,000원