Influence of sediment on the growth of the invasive macrophyte Najas marina ssp. intermedia in lakes

Hoffmann, Markus; Sacher, Marita; Lehner, Susanne; Raeder, Uta; Melzer, Arnulf

doi:10.1016/j.limno.2012.11.002

Cited by 11 publications

(5 citation statements)

References 14 publications

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“…The aboveground stems are fragile and easily broken in turbulent water (Chen, 1984). Moreover, their roots are largely fibrous, and grow poorly in soil with high viscosity (Handley and Davy, 2005;Hoffmann et al, 2013). The sediment is mainly composed of clay in PLN (Ding et al, 2014), and the water level fluctuations are extremely large.…”

Section: Discussionmentioning

confidence: 99%

Restoration of Aquatic Plants After Extreme Flooding and Drought: A Case Study From Poyang Lake National Nature Reserve

Zhang¹

2019

Appl. Ecol. Env. Res.

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Poyang Lake is the largest freshwater lake in China. Extreme flooding and drought occurred in 1998 and 2011, respectively, resulting in a massive loss of aquatic plants. To compare the effects of flooding and drought on aquatic plants and the subsequent recovery process, field investigations were conducted in Poyang Lake National Nature Reserve (PLN) in 2012 . Historical data from 1984, 1999 , and 2001 were also used for comparison. The results revealed that the species composition of aquatic plants after extreme flooding differed from that after extreme drought. After flooding, the species composition was basically the same as the historical records from 1984 under normal hydrological conditions; however, after drought, Najas marina and N. minor disappeared. Moreover, the resilience ability of aquatic plants was higher after extreme flooding than following extreme drought. The dominant species also differed after the two hydrological events. Vallisneria spp. and Hydrilla verticillata were first to recover after flooding, while Vallisneria spp. and Nymphoides peltata recovered fastest after drought. Since extreme drought is more damaging to aquatic vegetation than extreme flooding, we suggest that lakes in the Yangtze River basin aim to maintain a minimum water level through rational regulation of water resources.

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Section: Discussionmentioning

confidence: 99%

Restoration of Aquatic Plants After Extreme Flooding and Drought: A Case Study From Poyang Lake National Nature Reserve

Zhang¹

2019

Appl. Ecol. Env. Res.

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“…However, in addition to the hypothesized thermal stresses, aquatic species face a variety of anthropogenic constraints such as water contamination and habitat change (Nicolas & al. 2011), and also ecological preferences have to be taken into account (Hoffmann & al. 2013).…”

Section: Willdenowia 52 -2022mentioning

confidence: 99%

The unnoticed northward expansion of Najas marina subsp. armata (Hydrocharitaceae) in the Mediterranean area: an effect of climate change?

Troìa

2022

Willdenowia

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“…Regarding the effect of spring on phytoplankton species, the results showed that some assemblages (i.e., Chlorophyta) could also reproduce in large quantities in spring. It is mentioned this is due to global warming, which promotes the reproduction of some phytoplankton assemblages in spring, while the maximum biomass and individual size of phytoplankton are decreasing gradually (Hoffmann et al, 2013). When in winter, low temperature environment and high nitrogen-phosphorus ratio will play a certain inhibitory role on the growth and reproduction of phytoplankton, especially for Cyanophyta.…”

Section: Relationships Between Dominant Phytoplankton Species and Temmentioning

confidence: 99%

Temporal variation revealed the composition change of phytoplankton assemblage responds to varied environmental indicators within an artificial freshwater engineered ecosystem

Xu¹,

Wang²,

Chen³

et al. 2021

Preprint

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Artificial freshwater engineering ecosystems (AFwEEs) have attracted more and more attention. Phytoplankton is critical to the fluctuation of water quality in the AFwEEs. However, there is still a major knowledge gap regarding the ecology, composition, and temporal dynamics of phytoplankton assemblage composition in AFwEEs. Hence, an AFwEEs designed base on the submerged macrophytes (i.e., Vallisneria natans, Najas marina, and Potamogeton crispus) and fishes (i.e., Hypophthalmichthys molitrix, Hypophthalmichthys nobilis, and Ctenopharyngodon idellus) was established. The initial purpose for this survey was to conduct almost entire year (April/2019 – December/2019) sampling investigation to explain the interactions and relationship between multifarious environmental indicators and phytoplankton, also for the different phenomenon explanation of composition change in phytoplankton assemblage between AFwEEs and natural water environments. Consequences exhibited the assemblage dynamics of the phytoplankton were significant varied with seasonal succession, in which Cyanophyta dominated the phytoplankton assemblage while the mean relative abundance accounted for 66.4%, and then was Chlorophyta, for 18.8%. Principal component analysis (PCA) demonstrated temporal variation was significant impacted on phytoplankton assemblages. The dominant species, different assemblages, and distribution of phytoplankton were closely related to the dynamic changes of seasonal succession, which might change the composition of phytoplankton assemblage in the FwAEEs. Results of redundancy analysis (RDA) revealed the water temperature, nutrient concentration, DO concentration, and pH value were the main abiotic environmental indicators affecting phytoplankton assemblage. The trend of the four diversity indices indicated the phytoplankton assemblage became more stable in winter while the change extent of that was more significant in summer.

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Influence of sediment on the growth of the invasive macrophyte Najas marina ssp. intermedia in lakes

Cited by 11 publications

References 14 publications

Restoration of Aquatic Plants After Extreme Flooding and Drought: A Case Study From Poyang Lake National Nature Reserve

Restoration of Aquatic Plants After Extreme Flooding and Drought: A Case Study From Poyang Lake National Nature Reserve

The unnoticed northward expansion of Najas marina subsp. armata (Hydrocharitaceae) in the Mediterranean area: an effect of climate change?

Temporal variation revealed the composition change of phytoplankton assemblage responds to varied environmental indicators within an artificial freshwater engineered ecosystem

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