Distributions of Organic Matter and Trace Metals in Sediment around a Tidal-flat Oyster Crassostrea gigas Farming Area on the Taean Peninsula, Korea

Hwang, Dong-Woon; Lee, In-Seok; Choi, Minkyu; Choi, Hee-Gu

doi:10.5657/kfas.2014.1014

Cited by 3 publications

(4 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…m −2 , respectively. The O. stimpsoni and U. unicinctus samples were collected from the TA tidal flats (36°51′15.45″ N, 126°11′55.73″ E for O. stimpsoni and 36°58′31.77″ N, 126°20′54.43″ E for U. unicinctus ), which has a macro tidal range and a semi-diurnal tide with a mean tidal range of 4.6 m [ 30 ]. They are the dominant species at each site, with a mean density of 10 and 5 ind.…”

Section: Methodsmentioning

confidence: 99%

The Relationship between Burrow Opening Dimensions and Biomass of Intertidal Macroinvertebrates by Feeding Mode (Surface Deposit Feeders vs. Suspension Feeders)

Koo

Seo

Jang

2022

Animals

View full text Add to dashboard Cite

Biomass and abundance are fundamental parameters in ecology, conservation biology, and environmental impact assessment. Distinguishing features, such as burrow openings and feeding pellets, made by different intertidal macroinvertebrate species on the surface are used as proxies to establish the abundance of intertidal macroinvertebrates. This study investigated the feasibility of estimating biomass from the burrow opening dimensions as a proxy. We analyzed the relationship between the burrow opening dimensions and body weights of intertidal macroinvertebrates and compared surface deposit feeders with suspension feeders. Regression analysis evaluated the relationship between burrow opening diameter, body size, and biomass. The diameters of surface deposit feeder burrow openings were significantly related to biomass, but this was not the case for suspension feeders. Our results indicate that burrow opening dimensions can be used as a proxy to estimate the biomass of surface deposit feeders. However, additional studies are needed to clarify further the relationship between the burrow opening diameter and biomass of the suspension feeders. This is a preliminary study to spatially quantify the biomass of intertidal macroinvertebrates by extracting the dimension of burrow openings from drone images through object detection tools.

show abstract

Section: Methodsmentioning

confidence: 99%

The Relationship between Burrow Opening Dimensions and Biomass of Intertidal Macroinvertebrates by Feeding Mode (Surface Deposit Feeders vs. Suspension Feeders)

Koo

Seo

Jang

2022

Animals

View full text Add to dashboard Cite

show abstract

“…, (threshold effects level, TEL) (MOF, 2013) (National Oceanic and Atmospheric Administration, NOAA) ERL (effect range low) (Buchman, 2008) . (Hwang et al, 2013), (Hwang et al, 2014b) . , (2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010) Zn > Cr > Pb > Cu > As > Cd > Hg (NFRDI, 2013).…”

Section: 재료 및 방법mentioning

confidence: 99%

“…(resuspension) (reworking) (Hwang et al, 2014b). , , , (Horowitz, 1991;Hwang et al, 2010 (Table 2), (Hwang et al, 2014b), - (Hwang et al, 2010), - (Hwang et al, 2013) , (Kim et al, 2012), (Choi et al, 2015) 1/2 . , (Kim et al, 2005) (Hwang et al, 2014a) .…”

Section: 재료 및 방법mentioning

confidence: 99%

Distributions of Organic Matter and Trace Metals in Surface Sediments around a Manila Clam Ruditapes phillippinarum Farming Area in Gomso Bay, Korea

Choi¹,

Lee²,

Kim³

et al. 2015

Korean Journal of Fisheries and Aquatic Sciences

Self Cite

View full text Add to dashboard Cite

Organic matter and trace metals were investigated in surface sediments of Gomso Bay, where there is dense Manila clam Ruditapes philippinarum farming activity, to evaluate contamination of sediments in intertidal shellfish farming area. We measured mean grain size (Mz), chemical oxygen demand (COD), ignition loss (IL), acid volatile sulfide (AVS), total organic carbon (TOC), and total nitrogen (TN), and trace metals (As, Cd, Cr, Cu, Fe, Hg, Mn, Pb and Zn) in intertidal and sublittoral sediments. The intertidal sediments were mainly composed of coarser sediments (sand, silty sand, and sandy silt), with Mz values ranging from 2.61 to 4.79 Ø. Mz and the content of organic matter in sediments were lower in the intertidal zone than in the sublittoral zone. The mean metal concentrations in surface sediments decreased in the order Fe > Mn > Zn > Cr > Pb > Cu > As > Cd > Hg. The metal concentrations in surface sediments showed a significant positive correlation with Mz and organic matter content, indicating that metal concentrations in the surface sediments of Gomso Bay are controlled by Mz and organic matter. The concentrations of organic matter and trace metals in the study region were lower than or similar to those in other intertidal zones in western coast and much lower than those reported in other shellfish farming areas in Korea. Our results suggest that intertidal Manila clam farming sediments from Gomso Bay are not contaminated by organic matter and trace metals.

show abstract

“…- , , (Hwang et al, 2014b) , (Hwang et al, 2014a) (Kim et al, 2005) Cu (Fe > Mn > Zn > Cu > Cr > Pb > As > Cd > Hg) . Cr , .…”

Section: 결과 및 고찰mentioning

confidence: 99%

Distribution and Contamination Status of Trace Metals in Surface Sediments of Shellfish Farming Areas in Yeoja and Gangjin Bays, Korea

Choi¹,

Lee²,

Kim³

et al. 2015

Korean Journal of Fisheries and Aquatic Sciences

Self Cite

View full text Add to dashboard Cite

The concentrations of trace metals (As, Cd, Cr, Cu, Fe, Hg, Mn, Pb, and Zn) were determined in 49 surface sediment samples collected in Yeoja and Gangjin Bays on the south coast of Korea, which contain many shellfish farms, in order to assess the contamination level and to understand the spatial distribution of trace metals. The average metal concentrations in the surface sediments of both bays decreased in the order Fe > Mn > Zn > Cr > Pb > Cu > As > Cd > Hg. There were no differences in metal concentrations between shellfish farms and reference sites. The metal concentrations were significantly higher in Gangjin Bay than in Yeoja Bay. Notably, the Cu, Cd, and Hg concentrations were nearly twice as high in Gangjin Bay as in Yeoja Bay. A multivariate analysis showed a strong correlation among Fe, Mn, Zn, Pb, and Cr in the sediments of both bays, implying that the metal concentrations in the sediments in the study area were mainly dependent on natural processes, such as crustal components and diagenesis. Based on the geoaccumulation index and marine sediment quality guidelines (SQGs), the surface sediments in Yeoja and Gangjin Bays are not polluted by trace metals.Key words: Sediment, Trace metals, Contamination, Yeoja Bay, Gangjin Bay This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial Licens (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

show abstract

Distributions of Organic Matter and Trace Metals in Sediment around a Tidal-flat Oyster Crassostrea gigas Farming Area on the Taean Peninsula, Korea

Cited by 3 publications

References 28 publications

The Relationship between Burrow Opening Dimensions and Biomass of Intertidal Macroinvertebrates by Feeding Mode (Surface Deposit Feeders vs. Suspension Feeders)

The Relationship between Burrow Opening Dimensions and Biomass of Intertidal Macroinvertebrates by Feeding Mode (Surface Deposit Feeders vs. Suspension Feeders)

Distributions of Organic Matter and Trace Metals in Surface Sediments around a Manila Clam Ruditapes phillippinarum Farming Area in Gomso Bay, Korea

Distribution and Contamination Status of Trace Metals in Surface Sediments of Shellfish Farming Areas in Yeoja and Gangjin Bays, Korea

Contact Info

Product

Resources

About