Assessment of Species Status of Mollusca in Themid-Lower Yangtze Lakes

Shu, Fengyue; Wang, Haijun; Pan, Baozhu; Liu, Xueqin; Wang, Hongzhu

doi:10.3724/sp.j.1035.2009.61051

Cited by 48 publications

(60 citation statements)

References 6 publications

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“…There were 108 species of Mollusca in Poyang Lake, of which more than 50% were Chinese endemic species (Lin, 1962;Tchang & Li, 1965;Xiong et al, 2012). However, due to sand mining, overfishing and water pollution, many Mollusca populations have seriously declined in number (Shu, Wang, Pan, Liu, & Wang, 2009;Zhang et al, 2013). In addition, the density and biomass of macrozoobenthos in this study declined when compared to the historical data.…”

Section: Changes In the Diversity Of Macrozoobenthos In Poyang Lakementioning

confidence: 99%

“…Poyang Lake contributed 2.4 × 10 8 m 3 sand, which accounted for 9.1% of the total consumed sand in China (Meng et al, 2018), leading to an annual extraction of sand that is 20 times greater than the natural sediment deposition (mean 1.03 × 10 7 m 3 per year; Leeuw et al, 2010). In addition, the dominant taxa of bivalves have shifted from large unionids to the small Corbicula fluminea (Cai et al, 2014;Ouyang et al, 2009;Shu et al, 2009). In addition, the dominant taxa of bivalves have shifted from large unionids to the small Corbicula fluminea (Cai et al, 2014;Ouyang et al, 2009;Shu et al, 2009).…”

Section: Changes In the Diversity Of Macrozoobenthos In Poyang Lakementioning

confidence: 99%

“…Some studies have shown that sand mining can cause losses of 30%-70% in terms of species richness and 40%-95% in terms of abundance and biomass (Desprez, 2000). Sand mining has caused habitat fragmentation and deterioration in Poyang Lake Basin, which has endangered many Mollusca species, and the dominant species are gradually becoming miniaturized (Shu et al, 2009;Xiong et al, 2012;Zhang et al, 2013). Moreover, the dams in the upstream reaches of "five rivers" resulted in significantly changing hydrological conditions, thereby influencing the macrozoobenthos community structure (Liu, Hu, Ao, Wu, & Ouyang, 2017).…”

Section: Effect Of Human Activity On the Diversity Of Macrozoobenthosmentioning

confidence: 99%

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Temporal and spatial changes in macrozoobenthos diversity in Poyang Lake Basin, China

Liu

Zhou

et al. 2019

Ecology and Evolution

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Poyang Lake plays a significant role in maintaining and replenishing the macrozoobenthos biodiversity in the middle Yangtze River. However, due to human activities and natural factors, the habitat of Poyang Lake has been seriously degraded, resulting in a decline in macrozoobenthos biodiversity. Here, we analyzed the effect of human activity and environmental elements change on the diversity of macrozoobenthos based on a systematic investigation of Poyang Lake Basin in 2016–2017. The current species richness, density, and biomass of macrozoobenthos were lower than those in the historical period. At the same time, the community structure of the macrozoobenthos assemblage exhibits significant temporal and spatial differences. In addition, the spatial turnover component was the main contribution to beta diversity, which indicated that a number of protected areas would be necessary to conserve the biodiversity of macrozoobenthos. Water depth, dissolved oxygen, water velocity, and chlorophyll‐a were significantly correlated with macrozoobenthos distributions and assemblage structure based on RDA. These results indicated that human activities have seriously destroyed the macrozoobenthos habitat and led to the decline in macrozoobenthos diversity. Therefore, habitat restoration and the conservation of macrozoobenthos have become urgent in Poyang Lake Basin, and an integrated management plan should be developed and effectively implemented.

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Section: Changes In the Diversity Of Macrozoobenthos In Poyang Lakementioning

confidence: 99%

Section: Changes In the Diversity Of Macrozoobenthos In Poyang Lakementioning

confidence: 99%

Section: Effect Of Human Activity On the Diversity Of Macrozoobenthosmentioning

confidence: 99%

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Temporal and spatial changes in macrozoobenthos diversity in Poyang Lake Basin, China

Liu

Zhou

et al. 2019

Ecology and Evolution

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“…Water-level regulations in the mid-lower Yangtze lakes have resulted in a marked drop in diversity of macrobenthos and fish [22,56]. Economic development is an important issue in Jiangxi Province as it is one of the least developed provinces in China.…”

Section: Discussionmentioning

confidence: 99%

Potential influence of water level changes on energy flows in a lake food web

Wang

et al. 2011

Chin. Sci. Bull.

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Large seasonal water-level fluctuations may influence isotopic signatures of primary producers and the types and amounts of these potential food sources accessible to aquatic fauna of Poyang Lake, the largest freshwater lake in China. In this study, the isotopic signatures of primary producers and consumers were determined, stable carbon and nitrogen isotope analysis and mixing models were combined to investigate the influence of water levels on the diet and isotopic composition of Poyang Lake fish and invertebrates. Five potential food sources (seston, benthic organic matter, aquatic macrophytes, attached algae, and terrestrial plants), 4 species of invertebrates, and 10 species of fish were collected from the lake area during dry and wet seasons between January

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“…The Yangtze River Basin is a biodiversity hotspot for freshwater mussels, with more than 80% of them in this area are considered threatened or vulnerable (Liu et al, 2017;Shu, Wang, Pan, Liu, & Wang, 2009;Zieritz et al, 2018). Poyang Lake is the largest river-connected lake in the Yangtze River Basin with approximately 75% of the endemic freshwater mussel species in China (Li et al, 2019;Sun et al, 2018;Xiong, Ouyang, & Wu, 2013).…”

mentioning

confidence: 99%

Declining freshwater mussel diversity in the middle and lower reaches of the Xin River Basin: Threat and conservation

Sun

Liu

Wü

et al. 2019

Ecology and Evolution

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Freshwater mussels provide important functions and services for aquatic ecosystems, but populations of many species have been extirpated. Information on biodiversity plays an important role in the conservation and management of freshwater mussels. The Xin River Basin is a biodiversity hotspot for freshwater mussels in China, with more than 43 species known, but populations of which are decreasing. Here, we quantify the diversity of freshwater mussels in the middle and lower reaches of the Xin River Basin and study the correlation of habitat characteristics and freshwater mussel diversity. Compared to the historical period, the number of species, density, and biomass of freshwater mussels decreased 33%, 83%, and 82% in the current period, respectively. Fifty two percent of recorded species were empty shells, and 14 native freshwater mussels were not found in the study area. Four species are currently listed as vulnerable species using IUCN criteria and their global status. The assemblage structure of freshwater mussels exhibits significant spatial differences, and there was a correlation with substrate and physicochemical parameters. The main tributary of the Xin River with higher freshwater mussel diversity should be established as one large protected area because the nestedness component was the main pattern of beta diversity. These results indicated freshwater mussel diversity was declining rapidly, which can help focus conservation effort for freshwater mussel biodiversity.

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Assessment of Species Status of Mollusca in Themid-Lower Yangtze Lakes

Cited by 48 publications

References 6 publications

Temporal and spatial changes in macrozoobenthos diversity in Poyang Lake Basin, China

Temporal and spatial changes in macrozoobenthos diversity in Poyang Lake Basin, China

Potential influence of water level changes on energy flows in a lake food web

Declining freshwater mussel diversity in the middle and lower reaches of the Xin River Basin: Threat and conservation

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