HPLC Analysis of Biomass and Community Composition of Microphytobenthos in the Saemankeum Tidal flat, West Coast of Korea

Seung-Jin, OH; Moon, Chang-Ho; Park, Mi-Ok

doi:10.5657/kfas.2004.37.3.215

Cited by 8 publications

(10 citation statements)

References 28 publications

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“…Biomass in this study was high during winter (February, 2005) and low during summer (July, 2004) as presented in Figs 3 and 4. The similar pattern of seasonal variations was observed in the Mangyung and Ganghwa tidal flat and diatoms were dominant in the microalgal population of the tidal flats (Oh et al 2004;Yoo and Choi 2005). Earlier studies (Yoder 1979;Smayda 1980) documented that growth of diatoms in water column such as Skeletonema costatum was preferred by low water temperature and light intensity.…”

Section: Discussionsupporting

confidence: 51%

“…Trophic importance of the sediment microalgae to Kwangyang Bay food webs was reported by Kang et al (2001Kang et al ( , 2003. Biomass of sediment microalgae (chlorophyll a) ranged from 4.4 to 81.2 mg m -2 in this study and was relatively high compared with other tidal flat systems such as Mangyung (0.24-32.11 mg m -2 ) and Ganghwa tidal flat (1.18-34.25 mg m -2 ) in Korea (Oh et al 2004;Yoo and Choi 2005). Primary production in sediments was generally high during spring or summer .…”

Section: Discussionmentioning

confidence: 62%

“…Various studies have been reported focusing on dynamics of sedimentation (Choi 1992; Ryu et al 2003;Ryu and Sin 2006), physical-chemical properties (Kim and You 2001;You et al 2003), macro-sized benthos (Koh and Shin 1988;An and Koh 1992;Lim et al 1997) for intertidal flats in Korea. Variations of benthic microalgae biomass and community were investigated for Kyonggi Bay (Yoo and Choi 2005), Kuem River (Kim and Cho 1985), Saemangeum (Oh and Koh 1995;Oh et al 2004), Youngkwang and Gangjin (Lee 2002;Lee 2003). However, dynamics of benthic microalgae were not explored for the intertidal flats of Kwangyang Bay located in the south coast.…”

Section: Introductionmentioning

confidence: 99%

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Characteristics of Benthic Chlorophyll a and Sediment Properties in the Tidal Flats of Kwangyang Bay, Korea

Sin¹,

Ryu²,

Song³

2009

ALGAE

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Characteristics of benthic microalgae and sediment properties were investigated for the intertidal flats of Kwangyang Bay, Korea. Sampling stations were selected every 100 m in the intertidal flats from land-side to open ocean at two different sampling sites. Samples were collected in June 2004, July, September, November, February and May 2005. Sediments properties were measured including temperature, water contents, sediment bulk density, nutrient concentrations in porewater. Chlorophyll a concentrations in surface sediment (0.5 cm) were measured and relationships between the chlorophyll a and various sediment properties were analyzed to identify major mechanisms regulating biomass of benthic microalgae in the intertidal flats using simple linear regression analysis. Sediment chlorophyll a concentrations were maximum during winter and minimum during warm seasons ranging from 4.4 mg m -2 to 81.2 mg m -2. No clear spatial variations were observed for the sediment chlorophyll a in the study sites. Results from regression analysis suggested that benthic microalgae biomass was affected by sediment temperature and nutrients especially ammonium and silicate. Grazing effect was estimated using chlorophyll: pheopigments ratio, indirect indicator of grazing activity, and the positive correlation of the ratio and chlorophyll a implied that microalgae biomass is affected by grazing of zoobenthos although direct measurement of grazing activity is required to determine the importance of top-down controls in the benthic microalgae dynamics.

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Section: Discussionsupporting

confidence: 51%

Section: Discussionmentioning

confidence: 62%

Section: Introductionmentioning

confidence: 99%

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Characteristics of Benthic Chlorophyll a and Sediment Properties in the Tidal Flats of Kwangyang Bay, Korea

Sin¹,

Ryu²,

Song³

2009

ALGAE

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“…따라서 최저분석 한계가 낮아 연안역 뿐 만 아니라 열수 및 심해저를 포함한 여러 해양환경에서 총 미생물 군집의 생체량 측정 및 생태 연구에 널리 사용 되어 왔다 (Holm-Hansen and Booth 1966;Karl 1978;LaRock et al 1979;Haberstroh and Karl 1989;Hyun et al 1998Hyun et al , 2002. 우리나라 서해안 조간대에서의 저서미세조류 연구는 서 해안 갯벌 중 금강 하구역 조간대 (Kim and Cho 1985)와 만경 동진 갯벌의 표층 퇴적물 (Oh and Koh 1995), 남서 부 갯벌 (Lee 2001)의 저서미세조류 분포에 대한 연구들이 보고되고 있으며, 이외에도 국내외적으로 HPLC를 이용하 여 저서미세조류의 생체량과 분포에 대한 연구가 다수 보 고되었다 (Oh et al 2004;Yoo and Chol 2005;Du and Chung 2007;Lee et al 2009;Aneeshkumar and Sujatha 2012). 그러나 조간대 갯벌에서 저서미세조류 색소와 퇴적 물 내 미생물 생체량과의 관계에 대한 생지화학적인 연구 는 미비한 실정이다 (Hyun et al 2002).…”

Section: 서 론unclassified

Comparative Study on Microphytobenthic Pigments and Total Microbial Biomass by ATP in Intertidal Sediments

Choi²,

Min³

et al. 2013

Ocean and Polar Research

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Abstact : Biomass and community composition of microphytobentos in tidal flats were studied by HPLC analysis and also investigated to examine the relationship between microphytobenthic pigments and Adenosine-5' triphosphate (ATP) as an index of total microbial biomass in intertidal environments (muddy and sandy sediment) of Gyeonggi Bay, west coast of Korea. Microphytobenthic pigments and ATP concentration in muddy sediment were the highest at the surface while the biomass of microphytobenthos in sandy sediment was the highest at the sub-surface (0.75 cm sediment depth). The detected pigments of microphytobenthos were chlorophyll a, b (euglenophytes), c 3 , peridinin (dinoflagellates), fucoxanthin (diatom or chrysophytes), diadinoxanthin, alloxanthin (cryptophytes), diatoxanthin, zeaxanthin (cyanobacteria), β-carotein, and pheophytin a (the degraded product of chlorophyll a). Among the pigments which were detected, the concentration of fucoxanthin was the highest, indicating that diatoms dominated in the microphytobenthic community of the tidal flats. There was little significant correlation between OC (Organic Carbon) and ATP in both sediments. However, a positive correlation between chlorophyll a concentration and ATP concentration was found in sandy sediment, suggesting that microbial biomass could be affected by labile OC derived from microphytobenthos. These results provide information that may help us understand the relationship between microphytobenthos and microbial biomass in different intertidal sediment environments.

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“…따라서, 방조제 공사가 시작된 이후부터 방조제 건설에 따른 연안환경 변화를 알아보기 위해 새만금 내․외측에서 해수유동 (Choi and Kang, 1990;Lee et al, 2003a;Kim et al, 2006;Suh et al, 2006;Kim et al, 2008), 수질 (Kim and Kim, 2002;Kim et al, 2009), 퇴적물 (Hong et al, 2006;Lee et al, 2006;Ryu, 2007, 2008;Yang and Hwang, 2008), 및 해양생물 (Yoo et al, 2002;Hwang and Kim, 2003;Lee et al, 2003b;Cha et al, 2004;Park et al, 2004a;Rho et al, 2004;Kil et al, 2006;Lee et al, 2009) 등에 대한 다양한 연구가 활발하게 진행되어 왔다. 이들 연구 의 대부분은 방조제 내․외측의 조하대 지역에 집중되어져 있 고, 일부 조간대 지역의 연구는 대부분 만경강과 동진강 하구 의 새만금 갯벌 (Cho et al, 2001;Kim and You 2001;Kim et al, 2003;You et al, 2003;Oh et al, 2004;Park et al, 2004b;Woo et al, 2006;Koo et al, 2008) (Lee and Ryu, 2008). 연구지역 주변의 퇴적물은 금강하구둑과 새만금 방조제가 건설되기 이전에 금강, 만경강 및 동진강으로부터 지속적인 퇴적물을 공급받아 모래에서부터 사니질까지 다양 한 퇴적상이 존재한다 (Oh and Choi, 1999;Lee and Ryu, 2008).…”

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Temporal Variations in the Sedimentation Rate and Benthic Environment of Intertidal Surface Sediments around Byeonsan Peninsula, Korea

Jung¹,

Hwang²,

Kim³

et al. 2010

Korean Journal of Fisheries and Aquatic Sciences

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To understand temporal variations in geochemical characteristics of intertidal surface sediments around Byeonsan Peninsula (in the middle of the western coast, Korea) after the construction of Saemanguem dyke, the sedimentation rate and various geochemical parameters, including mean grain size (Mz), water content (WC), ignition loss (IL), chemical oxygen demand (COD), and acid volatile sulfide (AVS), were measured along four transects (A-D lines) at monthly intervals from February 2008 to March 2009. The average monthly sedimentation rate ranged from -5.3 to 3.8 mm/month (mean -0.8 ± 2.7 mm/month), which showed an erosion-dominated environment in the lower part of the intertidal zone. In addition, surface sediments were eroded in summer and autumn, but were deposited in spring and winter. The Mz of surface sediments ranged from -0.8 to 3.4∅ (mean 2.8 ± 0.5∅), indicating that the surface sediments consist of coarser sediments (sand and slightly gravelly sand). The Mz of surface sediments did not show large monthly and/or seasonal variations, although the sedimentation rates of surface sediment showed large seasonal variation. This may be due to lateral shifting and effective dispersion of surface sediments by wind, tide, and longshore current. The concentrations of IL and COD in the surface sediments ranged from 0.2 to 2.9% (mean 1.4 ± 0.4%) and from 0.2 to 18.5 mgO 2 /g-dry (mean 3.9 ± 3.4 mgO 2 /g-dry), respectively, which were slightly higher in spring than in the other seasons. This may be related to spring blooms of phytoplankton in seawater and/or benthic microalgae in surface sediments. On the other hand, no AVS concentrations were detected in surface sediments at any of the sampling stations during the study period.

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HPLC Analysis of Biomass and Community Composition of Microphytobenthos in the Saemankeum Tidal flat, West Coast of Korea

Cited by 8 publications

References 28 publications

Characteristics of Benthic Chlorophyll a and Sediment Properties in the Tidal Flats of Kwangyang Bay, Korea

Characteristics of Benthic Chlorophyll a and Sediment Properties in the Tidal Flats of Kwangyang Bay, Korea

Comparative Study on Microphytobenthic Pigments and Total Microbial Biomass by ATP in Intertidal Sediments

Temporal Variations in the Sedimentation Rate and Benthic Environment of Intertidal Surface Sediments around Byeonsan Peninsula, Korea

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