Seasonal Variation of Mesozooplankton Communities in the Semi-enclosed Muan Bay, Korea

Moon, Seong-Yong; Seo, Min‐Ho; Shin, Yongsik; Soh, Ho-Young

doi:10.4217/opr.2012.34.1.001

Cited by 11 publications

(5 citation statements)

References 22 publications

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“…High fluctuations in salinity, ranging between 15.3 and 32.2 PSU, characterize Muan Bay. This volatility can be attributed to freshwater discharge from the Yeongsan River [ 41 ] potentially causing periodic fluctuations in nutrient levels. In contrast, Garorim Bay exhibits a high but stable salinity, fluctuating minutely from 30.1 PSU (in October) to 32.19 PSU (in February) [ 42 ].…”

Section: Methodsmentioning

confidence: 99%

Epiphytic Bacterial Community Analysis of Ulva prolifera in Garorim and Muan Bays, Republic of Korea

Supty,

Jahan,

Lee

et al. 2024

Microorganisms

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The bacterial communities related to seaweed can vary considerably across different locations, and these variations influence the seaweed’s nutrition, growth, and development. To study this further, we evaluated the bacteria found on the green marine seaweed Ulva prolifera from Garorim Bay and Muan Bay, two key locations on Republic of Korea’s west coast. Our analysis found notable differences in the bacterial communities between the two locations. Garorim Bay hosted a more diverse bacterial population, with the highest number of ASVs (871) compared to Muan Bay’s 156 ASVs. In Muan Bay, more than 50% of the bacterial community was dominated by Pseudomonadota. On the other hand, Garorim Bay had a more balanced distribution between Bacteroidota and Pseudomonadota (37% and 35.5%, respectively). Additionally, Cyanobacteria, particularly Cyanothece aeruginosa, were found in significant numbers in Garorim Bay, making up 8% of the community. Mineral analysis indicated that Garorim Bay had higher levels of S, Na, Mg, Ca, and Fe. Function-wise, both locations exhibited bacterial enrichment in amino acid production, nucleosides, and nucleotide pathways. In conclusion, this study broadens our understanding of the bacterial communities associated with Ulva prolifera in Korean waters and provides a foundation for future research on the relationships between U. prolifera and its bacteria.

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Section: Methodsmentioning

confidence: 99%

Epiphytic Bacterial Community Analysis of Ulva prolifera in Garorim and Muan Bays, Republic of Korea

Supty,

Jahan,

Lee

et al. 2024

Microorganisms

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“…(Figure 4). Copepodites contributed greatly to the increase in PF proportion after rainfall, which can be explained as follows: first, copepodites and P. parvus s. l., which appeared dominant both before and after rainfall in the study region, would have survived rapid salinity changes because most of them have a euryhaline habitat range (Suh et al, 1991;Moon et al, 2012); second, copepodites and P. parvus s. l. would have increased in environments rich in phytoplankton-based particulate prey transported from the Seomjin River (Kwon et al, 2002;Kang et al, 2019;Kang et al, 2020a). This was supported by the correlation analysis results between zooplankton abundance, feeding habits, and environmental factors.…”

Section: A B Figurementioning

confidence: 99%

Influence of rainfall events on zooplankton community characteristics and feeding habits in estuarine–coastal environments

2022

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In temperate estuaries, rainfall causes environmental fluctuations, such as salinity and suspended particulate matter (SPM), and can affect zooplankton distribution patterns. This study focused on the effect of temporary freshwater inflow on the composition of major zooplankton species and changes in their ecological status in the Seomjin River estuary before (June) and after (August) rainfall in 2018. Environmental data were collected from 14 and 15 stations before and after rainfall, respectively. All factors except for chlorophyll-a (Chl-a) concentration differed significantly before and after rainfall (p<0.05), and a salinity gradient extended to Yeosu Bay from Gwangyang Bay. Zooplankton abundance decreased significantly after rainfall. There was a high correlation between indicator species abundance and environmental factors after rainfall (correlation coefficient: 0.7521); however, the indicator species and environmental factors did not exhibit a significant correlation with salinity before rainfall. In terms of feeding habit composition, the carnivore proportion showed a significant decrease after rainfall compared to before rainfall (p<0.001), while the particle feeder proportion showed a significant increase after rainfall compared to before (p<0.001). In particular, Corycaeus spp. contributed significantly to the decrease in carnivore abundance after rainfall. Among the particle feeders, Copepodites significantly increased in abundance after rainfall. Carnivore abundance was negatively correlated with salinity, and particle feeder abundance was positively correlated with potential prey sources (SPM and Chl-a concentration), suggesting that particle feeders respond to the food-rich environment after rainfall.

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“…Podonidae, which were abundant in the Taean area, were identified morphologically as Pleopis polyphemoides. This species has the characteristic of preferring brackish water and river estuary areas and is known as being highly resistant to low salinity [90][91][92][93][94]. The phylum Rotifera also consist of freshwater invertebrates that play a pivotal role in freshwater and marine ecosystems, as mentioned above [95].…”

Section: Potential Bioindicator Taxa In the Marine And Coastal Nation...mentioning

confidence: 99%

Biodiversity and Community Structure of Mesozooplankton in the Marine and Coastal National Park Areas of Korea

Kim

Lee²,

Lee³

et al. 2020

Diversity

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Zooplankton communities are useful bioindicators that can provide information on the changes occurring in marine ecosystems. Therefore, investigation of zooplankton communities in marine and coastal national parks is essential. However, the surveys of zooplankton communities using morphological identification require considerable time and labor. Metabarcoding is a practical alternative that can detect various taxa simultaneously. In this study, metabarcoding was newly applied along with the traditional morphological identification to establish a method for zooplankton community survey in the Marine and Coastal National Park areas of Korea. By comparing the results of these two identification methods, the strengths and limitations of metabarcoding were verified with the zooplankton communities appearing in these areas. The sensitive detection capability of metabarcoding enabled the identification of potential bioindicator taxa associated with external factors (e.g., water temperature, salinity, topography, and chlorophyll a concentration) in these national parks. We propose the use of metabarcoding for efficient surveys of mesozooplankton communities in the Marine and Coastal National Parks to establish monitoring of bioindicator taxa. It is also necessary to continuously search for taxa with high research value in these national parks using metabarcoding. Establishing an ongoing monitoring system that employs this approach can provide an effective tool for managing marine ecosystems in the Marine and Coastal National Parks.

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Seasonal Variation of Mesozooplankton Communities in the Semi-enclosed Muan Bay, Korea

Cited by 11 publications

References 22 publications

Epiphytic Bacterial Community Analysis of Ulva prolifera in Garorim and Muan Bays, Republic of Korea

Epiphytic Bacterial Community Analysis of Ulva prolifera in Garorim and Muan Bays, Republic of Korea

Influence of rainfall events on zooplankton community characteristics and feeding habits in estuarine–coastal environments

Biodiversity and Community Structure of Mesozooplankton in the Marine and Coastal National Park Areas of Korea

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