Anthropogenic influences on benthic food web dynamics by interrupted freshwater discharge in a closed Geum River estuary, Korea

Noh, Junsung; Yoon, Seo Joon; Kim, Hosang; Lee, Changkeun; Kwon, Bong-Oh; Lee, Yeonjung; Hong, Seongjin; Kim, Jae-Seong; Ryu, Jongseong; Khim, Jong Seong

doi:10.1016/j.envint.2019.104981

Cited by 19 publications

(4 citation statements)

References 76 publications

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“…Local HPs and sewage-derived SPOM showed (C/N) a , δ 13 C and δ 15 N values similar to signatures reported in the literature (Dover et al 1992, Kuramoto & Minagawa 2001, Waldron et al 2001, Gearing 2013, Francisquini et al 2014). The δ 13 C values of AM were similar to the mean δ 13 C (-17‰) reported for marine benthic algae (France 1995, Bouillon et al 2011, Noh et al 2019. In contrast, δ 15 N of AM was higher than that reported for marine N-fixing cyanobacteria (δ 15 N ca.…”

Section: Signatures Of Om Sourcessupporting

confidence: 76%

Distribution and origin of sedimentary organic matter in an eutrophic estuary: Pina Sound – NE Brazil

Costa

Moreira

Bastos

et al. 2021

An. Acad. Bras. Ciênc.

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Section: Signatures Of Om Sourcessupporting

confidence: 76%

Distribution and origin of sedimentary organic matter in an eutrophic estuary: Pina Sound – NE Brazil

Costa

Moreira

Bastos

et al. 2021

An. Acad. Bras. Ciênc.

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“…Ecological conditions in estuaries often undergo transitions that affect the success of benthic fauna. Fewer genera are found in estuaries than organisms living in both freshwater and marine (Noh et al 2019). The small number of individuals living in the estuary waters is due to large environmental fluctuations, especially salinity (Whitfield et al 2012;Van Diggelen and Montagna 2016) and temperature during high tides (Basset et al 2013).…”

Section: Correlation Between Ecosystem Characters Water Quality and T...mentioning

confidence: 99%

Biodiversity and community assemblages of freshwater and marine macrozoobenthos in Gorontalo Waters, Indonesia

et al. 2022

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Abstract. Kadim MK, Pasisingi N, Alinti ER, Alinti ER, Panigoro C. 2022. Biodiversity and community assemblages of freshwater and marine macrozoobenthos in Gorontalo Waters, Indonesia. Biodiversitas 23: 637-647. Macrozoobenthos plays an essential role in the aquatic ecosystem including as primary consumers, food sources, and water quality bioindicators. This study aimed to determine the composition, taxa abundance, community structure of the macrozoobenthos in the lower reach, estuary, and marine areas along Gorontalo waters, also their association with water quality parameters. Biota samples were collected purposively from 33 sampling points. The sampling process was conducted in June 2020 and May 2021. Macrozoobenthos samples were taken using Ekman Grab and prepared with filters (mesh size of 500 µm). Statistically, a t-test was done to assess the significance of taxa abundance difference among three different ecosystems from both sampling periods. Similarity percentages were displayed through a dendrogram. Furthermore, the biota assemblages and water quality parameters association were interpreted through Eigenvalues of Principal Component Analysis using Minitab ver. 14.0. The results showed that the macrozoobenthic community structure composed 70 taxa belonging to six classes dominated by Gastropoda, followed by Bivalvia, Malacostraca, Clitellata, Polychaeta, and Polyplacophora. The marine area had the highest abundance of macrozoobenthos (469.5 ind. m-3 in 2020; 460.9 ind. m-3 in 2021), followed by the river station (335.3 ind. m-3 in 2020; 2621 ind. m-3 in 2021), and estuary zone (217.3 ind in 2020. m-3; 848.5 ind. m-3 in 2021). The most abundant species in the lower reach area was Melanoides sp. (135.5 ind. m-3 in 2020; and 1222.5 ind. m-3 in 2021), while in the estuary was Brachidontes sp. (70.7 ind. m-3 in 2020; and 248 ind. m-3 in 2021). Batillaria sp. (128.3 ind. m-3 in 2020) and Anachis sp. (1510.7 ind. m-3 in 2021) were the species with the highest number in the marine zone. Based on the diversity and evenness index, the sea was in the medium category with no dominant species in the marine area. Biota communities in the lower reach station tend to be more like estuary biota than marine biota.

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“…Intertidal wetlands are diverse, complex habitats that provide an ecologically important buffer between rivers and oceans, and often harbor unique biodiversity (Alp & Le Pichon, 2020; Kirwan & Megonigal, 2013; Noh et al, 2019). Intertidal wetlands are characterized by connectivity dynamics that are influenced primarily by tidal influences, with daily tidal dynamics driving environmental variability and creating high spatiotemporal habitat heterogeneity (Alp & Le Pichon, 2020; Tonolla et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Effects of Spartina alterniflora invasion on the benthic invertebrate community in intertidal wetlands

Han

2022

Ecosphere

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Exotic species invasions have profound effects on native ecosystems, with the ecological effects of non‐native plants being especially pervasive. We investigated the impacts of a plant invasion on benthic invertebrate assemblages in intertidal wetlands of the Yellow River Delta, comparing benthic communities associated with exotic Spartina alterniflora against those associated with native plants (Tamarix chinensis, Suaeda salsa, and mudflat). Our study surprisingly found that the density, diversity, and richness of benthic invertebrates associated with S. alterniflora were higher than with native habitats. Multivariate analysis also revealed that the structure of benthic invertebrates in S. alterniflora habitats was different than in T. chinensis and mudflat habitats. The structure of invertebrates associated with the invasive S. alterniflora and native S. salsa was more similar, although the dominant species differed. Indicator species analyses indicated that each habitat was characterized by unique taxa. S. alterniflora invasion increased the beta diversity of the community, with the species turnover component being of most importance. Mollusks were most likely to be influenced by Spartina invasions. Given the extent of the S. alterniflora invasion in the Yellow River Delta, altered benthic invertebrate communities will likely have important implications for the ecology of the intertidal wetland ecosystems and deserve increased attention.

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Anthropogenic influences on benthic food web dynamics by interrupted freshwater discharge in a closed Geum River estuary, Korea

Cited by 19 publications

References 76 publications

Distribution and origin of sedimentary organic matter in an eutrophic estuary: Pina Sound – NE Brazil

Distribution and origin of sedimentary organic matter in an eutrophic estuary: Pina Sound – NE Brazil

Biodiversity and community assemblages of freshwater and marine macrozoobenthos in Gorontalo Waters, Indonesia

Effects of Spartina alterniflora invasion on the benthic invertebrate community in intertidal wetlands

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