Seven unrecorded marine molluscan species from Korea

Lee, Sang-Hwa; Kil, Hyun-Jong; Lee, Junsang

doi:10.9710/kjm.2018.34.3.179

Cited by 3 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some 30 years later, Mito and Uesugi (2004) reported it as an alien species in Japan that had been introduced from China. Lee et al (2010) predicted that N. sinarum would be introduced into Korea and Hong et al (2010) recorded purported observations, but the present morphological analysis indicates that Hong et al had reported without sufficient evidence (Suppl. material 1 ).…”

Section: Discussioncontrasting

confidence: 66%

“…The potential negative impact of N. sinarum on ecosystems as a non-native species is currently being evaluated in Japan using the Invasive Alien Species System (IAS). Lee et al (2010) warned that N. sinarum is likely to be introduced to Korea due to its successful introduction and emerging establishment in neighbouring Japan. An observation of N. sinarum in Suncheon Bay (Korea) was recorded in June 2009, albeit with its name misspelled as N. ( Zeuxis ) sinarus ; however, it was not added to the national species list of Korea ( Hong et al 2010 ).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

First confirmed report of Nassarius sinarum (Mollusca, Gastropoda) in Korea

Cho¹,

Yang²,

Khim³

et al. 2023

BDJ

View full text Add to dashboard Cite

The marine gastropod mollusc Nassarius sinarum has attracted attention due to its status as a potential invasive species and the ecological impact it may have on local environments and the fishing industry. It was observed exclusively within China initially, but its distribution now seems to have expanded into Japan and Korea. Accurate identification of N. sinarum, particularly in its juvenile stage, is vital for understanding its ecological influences and distribution patterns. This study represents the first comprehensive analysis of N. sinarum samples from Korea. It includes morphological examination, scanning electron microscopy images and molecular sequencing. Two live specimens were collected from the Yeongsan River estuary in Korea and their morphological features were analysed and compared to those of samples from China and Japan. The samples’ species were confirmed by molecular identification, based on cytochrome c oxidase subunit I (COI) and histone H3 (H3) genetic markers. It was observed that juvenile N. sinarum shells lack key species-characteristic morphological traits, such as a thick outer lip and diminishing axial ribs. However, COI marker-based molecular identification affirmed that these Korean specimens were N. sinarum. The H3 region was registered with the National Center for Biotechnology Information (NCBI) for the first time. Phylogenetic analysis of the H3 region did not resolve species distinctions within the Nassarius, suggesting that the H3 marker is not suitable for species identification within this genus. In this context, multiple genetic markers, when used appropriately, can also be applied to genus-level searches, enhancing species identification accuracy and reducing misidentification. The sequences provided in this study can serve as a valuable reference for future DNA barcoding research. Additional samples and surveys should be conducted through collaborative efforts amongst national and institutional organisations to further clarify the ecological status of N. sinarum and to investigate its distribution and potential impact around East Asia. Finally, a new Korean name, (No-lan-jul-job-ssal-mu-nui-go-dung; 노란줄좁쌀무늬고둥) has been proposed for N. sinarum.

show abstract

Section: Discussioncontrasting

confidence: 66%

Section: Introductionmentioning

confidence: 99%

First confirmed report of Nassarius sinarum (Mollusca, Gastropoda) in Korea

Cho¹,

Yang²,

Khim³

et al. 2023

BDJ

View full text Add to dashboard Cite

show abstract

“…On all MPD, M. galloprovincialis appeared most frequently (20.6%); it is on the International Union for Conservation of Nature (IUCN) list of the world's 100 worst alien species [43], and was first recorded in Korea in 1936 [44]. In this study, M. galloprovincialis mainly occurred on MPD with long exposure times.…”

Section: Discussionmentioning

confidence: 63%

Attached Macroinvertebrates Inhabiting Marine Plastic Debris from the Beach and Port Areas of the Southern Sea of Korea

Han

Kim

Kang

et al. 2023

JMSE

View full text Add to dashboard Cite

The increasing amount of marine plastic debris (MPD) poses risks of ingestion, entanglement, and transport of alien species. A new ecosystem called the “plastisphere” is currently being studied, but relevant research on it is limited. In this study, we analyzed the frequency of appearance of macroinvertebrate species on MPD. Macroinvertebrates attached to MPD were collected once every three months from March to December 2021 in eight regions. MPD in the form of aquaculture and fishing gear was detected most frequently during the study. In total, two phyla, 14 orders, 19 families, and 41 species of attached macroinvertebrates were detected during the study. There were more attached macroinvertebrate species, and they were more frequent, on fishing/aquaculture MPD (sea origin) than packaging MPD (land origin). Most fishing/aquaculture MPD is made of softer or rougher materials than packaging MPD and has a longer exposure time in the sea. In particular, the alien species Mytilus galloprovincialis was found on all longer-exposure MPD. These findings suggest that the macroinvertebrates attached to MPD are affected by the duration of exposure to the water and the characteristics of the MPD material. Therefore, in the future, fishing/aquaculture MPD could be used as an indicator for monitoring MPD-attached organisms.

show abstract

“…The index compares the older population aged 65 and over and the female population aged between 20 and 39. If the extinction-risk index is less than 0.5, a region is considered to be entering the extinction risk stage [11]. The extinction index value of Korea was 1.3 in 2016 and continued to decrease, reaching 0.87 in 2019 (Table 2).…”

Section: Extinction-risk Indexmentioning

confidence: 99%

“…They do not effectively show the regional shrinkage because they represent only a part of the age structure. The local extinction-risk index proposed by Lee [11] was recently introduced and received much attention. Lee's new indicator considers both the older population and the female childbearing-age population aged based on Masuda's explanation of "regional extinction" [9].…”

Section: Introductionmentioning

confidence: 99%

A New Index to Assess Vulnerability to Regional Shrinkage (Hollowing out) Due to the Changing Age Structure and Population Density

이

Suh

2021

Sustainability

View full text Add to dashboard Cite

In South Korea, there is an awareness of the risks of regional shrinkage and depopulation due to demographic changes and unbalanced population distribution. With concerns about the extinction of local cities and the hollowing out of rural communities, scholars have increasingly called for new population indices or indicators to evaluate the current state of the local population. The purpose of this study was to develop a vulnerability index to effectively analyze the age structure and population changes associated with regional shrinkage (i.e., hollowing out). This study applied ranking and correlation analysis results using data for population density and the population structure by age to develop a new index to assess a region’s vulnerability to the regional shrinkage effect. The new vulnerability index identified vulnerable regions by evaluating regional vulnerability using 2019 data. We also conducted a correlation analysis to validate the new index and found that the proposed index was significantly correlated with population growth and all other demographic indicators. The index developed in this study can be used to assess and compare the vulnerability of areas to regional shrinkage following population changes.

show abstract

Seven unrecorded marine molluscan species from Korea

Cited by 3 publications

References 0 publications

First confirmed report of Nassarius sinarum (Mollusca, Gastropoda) in Korea

First confirmed report of Nassarius sinarum (Mollusca, Gastropoda) in Korea

Attached Macroinvertebrates Inhabiting Marine Plastic Debris from the Beach and Port Areas of the Southern Sea of Korea

A New Index to Assess Vulnerability to Regional Shrinkage (Hollowing out) Due to the Changing Age Structure and Population Density

Contact Info

Product

Resources

About