Effects of snails, submerged plants and their coexistence on eutrophication in aquatic ecosystems

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Effects of snails, submerged plants and their coexistence on eutrophication in aquatic ecosystems. / Mo, Shuqing ; Zhang, Xiufeng ; Tang, Yali ; Liu, Zhengwen ; Kettridge, Nicholas.

In: Knowledge and Management of Aquatic Ecosystems, Vol. 418, 44, 21.09.2017.

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@article{34410f1d18c64bf89e9f40eb39ed8e1f,
title = "Effects of snails, submerged plants and their coexistence on eutrophication in aquatic ecosystems",
abstract = "Eutrophication resulting from nutrient loading of freshwater habitats is a severe problem, leading to degradation of ecosystems, including deterioration of water quality, water clarity and loss of biodiversity. Measures enacted to restore degraded freshwater ecosystems often involve the reintroduction of submerged plants and aquatic animals with beneficial ecological functions. In a mesocosm experiment, three treatments (planting with Vallisneria natans, introduction of the snail Bellamya aeruginosa and a combined treatment with both plants and snails) were compared with controls to evaluate their effects on trophic state. The total nitrogen (TN), total phosphorus (TP) and chlorophyll a (Chl a) concentrations of planktonic and benthic algal samples were determined every two weeks, along with light intensity at the sediment surface. The plant-only treatment significantly reduced the TN levels and planktonic and benthic algal biomass and increased the light intensity at the sediment surface. The snail-only treatment reduced the concentrations of TN and reduced planktonic and benthic algal biomass. The combined treatment decreased the concentrations of TN and TP, reduced planktonic algal biomass and increased the light intensity on the sediment surface. The results indicate that while submerged plants and snails can both improve water quality, the most pronounced effect in aquatic ecosystems is achieved by their presence in combination. A combined reintroduction approach may provide enhanced benefits in restoring the eutrophic ecosystems, following the reduction of external nutrient loading.",
keywords = "submerged plant, snail, coexistence, planktonic algae, benthic algae",
author = "Shuqing Mo and Xiufeng Zhang and Yali Tang and Zhengwen Liu and Nicholas Kettridge",
year = "2017",
month = sep,
day = "21",
doi = "10.1051/kmae/2017034",
language = "English",
volume = "418",
journal = "Knowledge and Management of Aquatic Ecosystems",
issn = "1961-9502",
publisher = "EDP Sciences",

}

RIS

TY - JOUR

T1 - Effects of snails, submerged plants and their coexistence on eutrophication in aquatic ecosystems

AU - Mo, Shuqing

AU - Zhang, Xiufeng

AU - Tang, Yali

AU - Liu, Zhengwen

AU - Kettridge, Nicholas

PY - 2017/9/21

Y1 - 2017/9/21

N2 - Eutrophication resulting from nutrient loading of freshwater habitats is a severe problem, leading to degradation of ecosystems, including deterioration of water quality, water clarity and loss of biodiversity. Measures enacted to restore degraded freshwater ecosystems often involve the reintroduction of submerged plants and aquatic animals with beneficial ecological functions. In a mesocosm experiment, three treatments (planting with Vallisneria natans, introduction of the snail Bellamya aeruginosa and a combined treatment with both plants and snails) were compared with controls to evaluate their effects on trophic state. The total nitrogen (TN), total phosphorus (TP) and chlorophyll a (Chl a) concentrations of planktonic and benthic algal samples were determined every two weeks, along with light intensity at the sediment surface. The plant-only treatment significantly reduced the TN levels and planktonic and benthic algal biomass and increased the light intensity at the sediment surface. The snail-only treatment reduced the concentrations of TN and reduced planktonic and benthic algal biomass. The combined treatment decreased the concentrations of TN and TP, reduced planktonic algal biomass and increased the light intensity on the sediment surface. The results indicate that while submerged plants and snails can both improve water quality, the most pronounced effect in aquatic ecosystems is achieved by their presence in combination. A combined reintroduction approach may provide enhanced benefits in restoring the eutrophic ecosystems, following the reduction of external nutrient loading.

AB - Eutrophication resulting from nutrient loading of freshwater habitats is a severe problem, leading to degradation of ecosystems, including deterioration of water quality, water clarity and loss of biodiversity. Measures enacted to restore degraded freshwater ecosystems often involve the reintroduction of submerged plants and aquatic animals with beneficial ecological functions. In a mesocosm experiment, three treatments (planting with Vallisneria natans, introduction of the snail Bellamya aeruginosa and a combined treatment with both plants and snails) were compared with controls to evaluate their effects on trophic state. The total nitrogen (TN), total phosphorus (TP) and chlorophyll a (Chl a) concentrations of planktonic and benthic algal samples were determined every two weeks, along with light intensity at the sediment surface. The plant-only treatment significantly reduced the TN levels and planktonic and benthic algal biomass and increased the light intensity at the sediment surface. The snail-only treatment reduced the concentrations of TN and reduced planktonic and benthic algal biomass. The combined treatment decreased the concentrations of TN and TP, reduced planktonic algal biomass and increased the light intensity on the sediment surface. The results indicate that while submerged plants and snails can both improve water quality, the most pronounced effect in aquatic ecosystems is achieved by their presence in combination. A combined reintroduction approach may provide enhanced benefits in restoring the eutrophic ecosystems, following the reduction of external nutrient loading.

KW - submerged plant

KW - snail

KW - coexistence

KW - planktonic algae

KW - benthic algae

U2 - 10.1051/kmae/2017034

DO - 10.1051/kmae/2017034

M3 - Article

VL - 418

JO - Knowledge and Management of Aquatic Ecosystems

JF - Knowledge and Management of Aquatic Ecosystems

SN - 1961-9502

M1 - 44

ER -