Spatiotemporal Variations of Marine Environmental Characteristics in the Middle East Coast of Korea in 2013-2014

Lee, Young-Woo; Park, Mi-Ok; Kim, Seong-Soo

doi:10.7846/jkosmee.2016.19.4.274

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…The EKWC breaks out from the Tsushima Current and characterized by a higher temperature and salinity. It also flows from the south to the north along the east coast of the Peninsula and merges with the NKCC at around 37° to 38º N latitude to form a subpolar Frontal Zone characterized by high productivity and rich biodiversity (Ashjian et al, 2005;Lee et al, 2016;Yoon et al, 2016). The East Sea water is represented by four water masses -Tsushima Surface Water, Tsushima Middle Water, North Korean Cold Water, East Sea Proper Water -defined by water temperature, salinity, dissolved oxygen and water depth (Yoon et al, 2007;Choi et al, 2012).…”

Section: Study Areamentioning

confidence: 99%

Peer Review #1 of "The chemical composition of a new “mica sandwich” foraminiferal species from the East Coast of Korea: Capsammina crassa sp. nov. (v0.1)"

Kaminski¹

2019

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We describe a new agglutinated monothalamous foraminiferal species, Capsammina crassa sp. nov., based on integrated observations of the test morphology and the chemical characteristics of materials composing the test. The new species was found at a depth of <60 m on the East coast of Korea. The test morphology is typical of the genus Capsammina, comprising two or more mica plates with a ring of finely agglutinated mineral grains sandwiched between them and surrounding the cell body. There is no distinct test aperture. Elemental analyses of the agglutinated grains revealed 15 different types of mineral grains of which quartz is the most abundant. The surface areas of grains exposed on fractured surfaces ranged from 1.6 to 7738 µm² and the large plate-like grains forming the upper and lower surfaces measured about 500 to 1200 µm (in one case 1550 µm) in width. The new species is morphologically similar to C. patelliformis, however the differences in size, distribution area and depth support that these two species are distinct. This discovery is the first record of the genus Capsammina from the North Pacific. Therefore, it extends the biodiversity and geographical distribution of the genus Capsammina, which has been reported only from the bathyal NE Atlantic. Our finding also suggests the possibility of additional discovery of monothalamous foraminifera from around Korea.

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Section: Study Areamentioning

confidence: 99%

Peer Review #1 of "The chemical composition of a new “mica sandwich” foraminiferal species from the East Coast of Korea: Capsammina crassa sp. nov. (v0.1)"

Kaminski¹

2019

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“…The EKWC breaks out from the Tsushima Warm Current and characterized by a higher temperature and salinity. It also flows from the south to the north along the east coast of the Peninsula and merges with the NKCC at around 37°–38°N latitude to form a subpolar Frontal Zone characterized by high productivity and rich biodiversity ( Ashjian et al, 2005 ; Lee, Park & Kim, 2016 ; Yoon et al, 2016 ). The East Sea water is represented by four water masses—Tsushima Surface Water, Tsushima Middle Water, North Korean Cold Water, East Sea Proper Water—defined by water temperature, salinity, dissolved oxygen and water depth ( Yoon, Jung & Yoon, 2007 ; Choi et al, 2012 ).…”

Section: Introductionmentioning

confidence: 99%

The chemical composition of a new “mica sandwich” foraminiferal species from the East Coast of Korea:Capsammina crassasp. nov.

Lee

Châtelet

Gooday

et al. 2019

PeerJ

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We describe a new agglutinated monothalamous foraminiferal species, Capsammina crassa sp. nov., based on integrated observations of the test morphology and the chemical characteristics of materials composing the test. The new species was found at a depth of <60 m on the East coast of Korea. The test morphology is typical of the genus Capsammina, comprising two or more mica plates with a ring of finely agglutinated mineral grains sandwiched between them and surrounding the cell body. There is no distinct test aperture. Elemental analyses of the agglutinated grains revealed 15 different types of mineral grains of which quartz is the most abundant. The surface areas of grains exposed on fractured surfaces ranged from 1.6 to 7,700 μm2 and the large plate-like grains forming the upper and lower surfaces measured about 420–2,350 μm in maximum width. The new species is morphologically similar to C. patelliformis, however, the differences in size, distribution area and depth support that these two species are distinct. This discovery is the first record of the genus Capsammina from the North Pacific. Therefore, it extends the biodiversity and geographical distribution of the genus Capsammina, which has been reported only from the bathyal NE Atlantic. Our finding also suggests the possibility of additional discovery of monothalamous foraminifera from around Korea.

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Characteristics of meiofaunal community in the subtidal zone near Hupo, anticipating ocean acidification in the East Sea of Korea

Kang

Kim

et al. 2023

Preprint

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This study aimed to investigate the meiofauna community characteristics in coastal waters highly affected by ocean acidification. Therefore, the meiofauna communities in the coastal waters of Hupo in Uljin-gun, a county bordering the East Sea of Korea, were monitored over five years. During the study period, the mean abundance of total meiofauna communities expressed in population density was 614.4 individuals (Inds.)/10 cm2, similar to the reported meiofauna abundance in the subtidal zone in the Yellow Sea of Korea, an area with sandy sedimentary facies. The most dominant taxa were nematodes (65–70%) and harpacticoids (7–20%); these two taxa accounted for approximately 80% of the total meiofauna abundance. Among the stations studied, station (St.) 10 showed the lowest seawater pH value, and in 2011, when the measured pH was the lowest at 7.82, St. 10 showed the lowest abundance values for total meiofauna and harpacticoids in the 5-year period. To examine the effect of ocean acidification on meiofauna communities at the species level, species of nematodes, the most dominant taxon, were analyzed. The results indicated that the number of nematode species at St. 10 in 2009, when the pH value was low, was 8, which was very low compared to that in the other years of the study period. According to the feeding type, epistrate feeders (2A) accounted for a remarkably high proportion at St. 10, which showed a low pH. This study provides various data on meiobenthic community characteristics to understand the effects of ocean acidification on coastal ecosystems.

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Spatiotemporal Variations of Marine Environmental Characteristics in the Middle East Coast of Korea in 2013-2014

Cited by 4 publications

References 10 publications

Peer Review #1 of "The chemical composition of a new “mica sandwich” foraminiferal species from the East Coast of Korea: Capsammina crassa sp. nov. (v0.1)"

Peer Review #1 of "The chemical composition of a new “mica sandwich” foraminiferal species from the East Coast of Korea: Capsammina crassa sp. nov. (v0.1)"

The chemical composition of a new “mica sandwich” foraminiferal species from the East Coast of Korea:Capsammina crassasp. nov.

Characteristics of meiofaunal community in the subtidal zone near Hupo, anticipating ocean acidification in the East Sea of Korea

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