<abstract xmlns="http://www.w3.org/1999/xhtml"><p> Even though the interaction between water movements and aquatic plant is crucial for the aquatic ecosystem management, the importance of water turbulence in this regard is not well documented. To add to our knowledge on the interaction between aquatic plant communities and water turbulence, this study examined turbulence, plant, sediment and water quality at the reed community (Phragmites australis) in the Lake Shinji, Japan. Observations were conducted along transects perpendicular to the shoreline. For each transect, reed communities were observed at land ward side, centre, water ward and the outside of the reed community. An elevated level of turbulence was observed outside compared to inside reed community, where the magnitude of turbulence decreased with distance into the community interior. A significant positive correlation was observed for turbulence and surface-dissolved oxygen where the latter was negatively correlated to reed density. Sediment composition was affected by water turbulence where the content of coarse particles positively correlated to turbulence. Accumulation of organic matter in anoxic sediments together with fine particles was observed under low turbulence. Our findings can offer insight into understanding the interactions between turbulence and aquatic plant communities.</p></abstract>

Even though the interaction between water movements and aquatic plant is crucial for the aquatic ecosystem management, the importance of water turbulence in this regard is not well documented. To add to our knowledge on the interaction between aquatic plant communities and water turbulence, this study examined turbulence, plant, sediment and water quality at the reed community (Phragmites australis) in the Lake Shinji, Japan. Observations were conducted along transects perpendicular to the shoreline. For each transect, reed communities were observed at land ward side, centre, water ward and the outside of the reed community. An elevated level of turbulence was observed outside compared to inside reed community, where the magnitude of turbulence decreased with distance into the community interior. A significant positive correlation was observed for turbulence and surface-dissolved oxygen where the latter was negatively correlated to reed density. Sediment composition was affected by water turbulence where the content of coarse particles positively correlated to turbulence. Accumulation of organic matter in anoxic sediments together with fine particles was observed under low turbulence. Our findings can offer insight into understanding the interactions between turbulence and aquatic plant communities.

Effects of water turbulence on plant, sediment and water quality in reed (Phragmites australis) community

Department of Environmental Science and Technology, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8770, Japan

Department of Limnology and Water Technology, Faculty of Fisheries and Marine Sciences and Technology, University of Ruhuna, Matara,

Research Institute of Chuo University, Kasuga, Bunkyo, Tokyo 112-8551,

Department of Natural Environmental Studies, Graduate School of Frontier Sciences, The University of Tokyo,5-1-5 Kashiwanoha, Kashiwa 277-8563,

Shimane Prefectural Institute of Public Health and Environmental Science, 582-1 Nishihamasadacho, Matsue 690-0122, Japan

Research Center for Coastal Lagoon Environments, Shimane University, 1060 Nishikawatsu, Matsue, Shimane 690-8504,

Ekológia (Bratislava)

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Even though the interaction between water movements and aquatic plant is crucial for the aquatic ecosystem management, the importance of water turbulence in...

Effects of water turbulence on plant, sediment and water quality in reed (Phragmites australis) community

Publié en ligne: 21 mars 2017

Pages: 1 - 9

DOI: https://doi.org/10.1515/eko-2017-0001

Mots clés
turbulence, Phragmites australis, Lake Shinji, sediments, dissolved oxygen

© by Keerthi Sri Senarathna Atapaththu

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Effects of water turbulence on plant, sediment and water quality in reed (Phragmites australis) community

Publié en ligne: 21 mars 2017

Pages: 1 - 9

DOI: https://doi.org/10.1515/eko-2017-0001

Mots clésturbulence, Phragmites australis, Lake Shinji, sediments, dissolved oxygen

© by Keerthi Sri Senarathna Atapaththu

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Mots clés
turbulence, Phragmites australis, Lake Shinji, sediments, dissolved oxygen