INFLUENCE OF LONG-TERM SEDIMENT REPLENISHMENT TO ALGAL BIOMASS AND COMMUNITY STRUCTURE DOWNSTREAM OF A DAM
The dynamics of attached algae in terms of their biomass and community structure was analyzed to reveal various relations to disturbances which are defined, these are increased by grain size refining on the river bed in the downstream section of Futase Dam. As a result of a time series analysis, cel...
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| Veröffentlicht in: | Doboku Gakkai Ronbunshu. B1, Suikogaku = Journal of Japan Society of Civil Engineers. Ser. B1, Hydraulic Engineering Ser. B1 (Hydraulic Engineering), 2018, Vol.74(5), pp.I_391-I_396 |
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| container_end_page | I_396 |
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| container_issue | 5 |
| container_start_page | I_391 |
| container_title | Doboku Gakkai Ronbunshu. B1, Suikogaku = Journal of Japan Society of Civil Engineers. Ser. B1, Hydraulic Engineering |
| container_volume | 74 |
| creator | MIZOGUCHI, Yuta TANAKA, Norio TAKAHASHI, Tadaomi |
| description | The dynamics of attached algae in terms of their biomass and community structure was analyzed to reveal various relations to disturbances which are defined, these are increased by grain size refining on the river bed in the downstream section of Futase Dam. As a result of a time series analysis, cell densities of algae have been gradually increased in our entire observation sites and exceeded 10,000 cell/mm2 around 2013. Diatoms were the most contributed class to the increase of the cell densities and Homoeothrix janthina and Hydrurus foetidus also led the increase partly. On an analysis of relationship between the algal dynamics and the grain size refining, the algal densities increased and some algal species which are tolerant to the disturbances were identified following decrease of grain size on the river bed. |
| doi_str_mv | 10.2208/jscejhe.74.5_I_391 |
| format | Article |
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As a result of a time series analysis, cell densities of algae have been gradually increased in our entire observation sites and exceeded 10,000 cell/mm2 around 2013. Diatoms were the most contributed class to the increase of the cell densities and Homoeothrix janthina and Hydrurus foetidus also led the increase partly. 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On an analysis of relationship between the algal dynamics and the grain size refining, the algal densities increased and some algal species which are tolerant to the disturbances were identified following decrease of grain size on the river bed.</description><subject>Algae</subject><subject>attached algae</subject><subject>Biomass</subject><subject>Community structure</subject><subject>Diatoms</subject><subject>Disturbances</subject><subject>Downstream effects</subject><subject>Dynamics</subject><subject>Futase Dam</subject><subject>Grain size</subject><subject>grain size refinement</subject><subject>Particle size</subject><subject>Replenishment</subject><subject>River beds</subject><subject>Riverbeds</subject><subject>Rivers</subject><subject>sediment replenishment</subject><subject>Time series</subject><issn>2185-467X</issn><issn>2185-467X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNpVkElPwzAQhS0EElXpH-BkiXOKlzixjyF120hZUBYBJ8u1HNqotCVpD_x70kUVXGbmaeZ7Iz0AHjEaE4L4c9MZ2yzt2HfHTEWKCnwDBgRz5rie_377Z74Ho65bLRDyGCeU4gFoonQaVzINJcymMM7SmVPKPIGFnESJTEuYy9dYplExP6kyg0E8C2L4EmVJUBQwSCcwzJKkSqPyAxZlXoVllUs4yd7SXskgOfoGcBIkD-Cu1uvOji59CKqpLMO5E2ezKAxix2CKmUO1Np5AlDBBmcsQ84jgPvZr4qJa11aIBTOMC48Zzn1X-xqLmhNssFtzJDw6BE9n3127_T7Ybq-a7aHd9C8VoQR7wvdc1l-R85Vpt13X2lrt2tWXbn8URuoYq7rEqnxXXWLtofAMNd1ef9orotv9yqztf6QvJ-q6NUvdKruhvyJXe3w</recordid><startdate>2018</startdate><enddate>2018</enddate><creator>MIZOGUCHI, Yuta</creator><creator>TANAKA, Norio</creator><creator>TAKAHASHI, Tadaomi</creator><general>Japan Society of Civil Engineers</general><general>Japan Science and Technology Agency</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7UA</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H96</scope><scope>KR7</scope><scope>L.G</scope></search><sort><creationdate>2018</creationdate><title>INFLUENCE OF LONG-TERM SEDIMENT REPLENISHMENT TO ALGAL BIOMASS AND COMMUNITY STRUCTURE DOWNSTREAM OF A DAM</title><author>MIZOGUCHI, Yuta ; TANAKA, Norio ; TAKAHASHI, Tadaomi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1315-3aac69032593545056298717f240fafe99b5c58965c8874a7a19f821c14f80963</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng ; jpn</language><creationdate>2018</creationdate><topic>Algae</topic><topic>attached algae</topic><topic>Biomass</topic><topic>Community structure</topic><topic>Diatoms</topic><topic>Disturbances</topic><topic>Downstream effects</topic><topic>Dynamics</topic><topic>Futase Dam</topic><topic>Grain size</topic><topic>grain size refinement</topic><topic>Particle size</topic><topic>Replenishment</topic><topic>River beds</topic><topic>Riverbeds</topic><topic>Rivers</topic><topic>sediment replenishment</topic><topic>Time series</topic><toplevel>online_resources</toplevel><creatorcontrib>MIZOGUCHI, Yuta</creatorcontrib><creatorcontrib>TANAKA, Norio</creatorcontrib><creatorcontrib>TAKAHASHI, Tadaomi</creatorcontrib><collection>CrossRef</collection><collection>Aqualine</collection><collection>Water Resources Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Doboku Gakkai Ronbunshu. 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| identifier | ISSN: 2185-467X |
| ispartof | Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering), 2018, Vol.74(5), pp.I_391-I_396 |
| issn | 2185-467X 2185-467X |
| language | eng ; jpn |
| recordid | cdi_proquest_journals_2321697645 |
| source | Alma/SFX Local Collection |
| subjects | Algae attached algae Biomass Community structure Diatoms Disturbances Downstream effects Dynamics Futase Dam Grain size grain size refinement Particle size Replenishment River beds Riverbeds Rivers sediment replenishment Time series |
| title | INFLUENCE OF LONG-TERM SEDIMENT REPLENISHMENT TO ALGAL BIOMASS AND COMMUNITY STRUCTURE DOWNSTREAM OF A DAM |
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