Rehabilitation of a tropical storm-water drain creates a novel fish assemblage
A 2.7-km canalised section of the Kallang River, a major storm-water drain and reservoir spillway in Singapore, was rehabilitated into a 3-km naturalised, meandering river between 2009 and 2011. A combination of plants, natural materials, and civil engineering techniques were introduced to soften th...
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| Veröffentlicht in: | Ecological engineering 2021-03, Vol.161, p.106150, Article 106150 |
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| creator | Wilkinson, Clare L. Kwik, Jeffrey T.B. Ow, Andre M.W. Lim, Rayson B.H. Liu, Shanshan Tan, Claudia L.Y. Saw, Abel C.Y. Liew, Jia Huan Yeo, Darren C.J. |
| description | A 2.7-km canalised section of the Kallang River, a major storm-water drain and reservoir spillway in Singapore, was rehabilitated into a 3-km naturalised, meandering river between 2009 and 2011. A combination of plants, natural materials, and civil engineering techniques were introduced to soften the edges of the waterway, to give it a more natural appearance and prevent soil erosion. Baseline data and published evidence of enhancement of aquatic biodiversity in this naturalised urban waterway are lacking, as there have not been any comprehensive biological surveys of the system to date. To determine the effect of rehabilitation, we quantitatively compared the fish assemblage and abiotic variables in the Kallang River after its rehabilitation (re-named Kallang River at Bishan-Ang Mo Kio Park or KRBAP; 2016–2018) against a downstream unrehabilitated section of the river (Kallang Canal; 2012). Secondly, we qualitatively compared fish assemblages and abiotic variables at the KRBAP and the Kallang Canal, to their source (upstream) reservoir, as well as to natural forest streams in close proximity. The KRBAP has a unique fish assemblage, which is dominated by two non-native cichlid taxa (quetzal cichlid, Vieja melanura (68%) and tilapia, Oreochromis spp. (17%)). Fish species richness (p |
| doi_str_mv | 10.1016/j.ecoleng.2021.106150 |
| format | Article |
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•Rehabilitation of a concretised canal created a novel fish assemblage.•Fish species richness and % native species are higher in rehabilitated river sections.•The rehabilitated waterway remained dominated by non-native fish species.•Fish assemblage and abiotic variables resemble source reservoir not forest streams.</description><identifier>ISSN: 0925-8574</identifier><identifier>EISSN: 1872-6992</identifier><identifier>DOI: 10.1016/j.ecoleng.2021.106150</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Abiotic factors ; Baseline studies ; Biodiversity ; Biological surveys ; Canals ; Cichlidae ; Civil engineering ; Community ecology ; Creeks & streams ; Fish ; Food chains ; Food webs ; Freshwater ; Freshwater fishes ; Indigenous species ; Introduced species ; Meandering ; Native organisms ; Native species ; Natural streams ; Naturalisation ; Non-native ; Rehabilitation ; Reservoirs ; River meanders ; Rivers ; Soil erosion ; Species richness ; Spillways ; Stability ; Stormwater ; Streams ; Tilapia ; Tropical climate ; Tropical depressions ; Tropical storms ; Upstream ; Urban ; Waterways</subject><ispartof>Ecological engineering, 2021-03, Vol.161, p.106150, Article 106150</ispartof><rights>2021 Elsevier B.V.</rights><rights>Copyright Elsevier BV Mar 1, 2021</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c403t-f2e855c8e279116f08a34969267ae5bcf9d6c20f2f79f0f8b80f0f82d798d3a63</citedby><cites>FETCH-LOGICAL-c403t-f2e855c8e279116f08a34969267ae5bcf9d6c20f2f79f0f8b80f0f82d798d3a63</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0925857421000045$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Wilkinson, Clare L.</creatorcontrib><creatorcontrib>Kwik, Jeffrey T.B.</creatorcontrib><creatorcontrib>Ow, Andre M.W.</creatorcontrib><creatorcontrib>Lim, Rayson B.H.</creatorcontrib><creatorcontrib>Liu, Shanshan</creatorcontrib><creatorcontrib>Tan, Claudia L.Y.</creatorcontrib><creatorcontrib>Saw, Abel C.Y.</creatorcontrib><creatorcontrib>Liew, Jia Huan</creatorcontrib><creatorcontrib>Yeo, Darren C.J.</creatorcontrib><title>Rehabilitation of a tropical storm-water drain creates a novel fish assemblage</title><title>Ecological engineering</title><description>A 2.7-km canalised section of the Kallang River, a major storm-water drain and reservoir spillway in Singapore, was rehabilitated into a 3-km naturalised, meandering river between 2009 and 2011. A combination of plants, natural materials, and civil engineering techniques were introduced to soften the edges of the waterway, to give it a more natural appearance and prevent soil erosion. Baseline data and published evidence of enhancement of aquatic biodiversity in this naturalised urban waterway are lacking, as there have not been any comprehensive biological surveys of the system to date. To determine the effect of rehabilitation, we quantitatively compared the fish assemblage and abiotic variables in the Kallang River after its rehabilitation (re-named Kallang River at Bishan-Ang Mo Kio Park or KRBAP; 2016–2018) against a downstream unrehabilitated section of the river (Kallang Canal; 2012). Secondly, we qualitatively compared fish assemblages and abiotic variables at the KRBAP and the Kallang Canal, to their source (upstream) reservoir, as well as to natural forest streams in close proximity. The KRBAP has a unique fish assemblage, which is dominated by two non-native cichlid taxa (quetzal cichlid, Vieja melanura (68%) and tilapia, Oreochromis spp. (17%)). Fish species richness (p < 0.001) and the percentage of native species (p = 0.015) was significantly higher in the KRBAP compared to the unrehabilitated canal. Moreover, the abiotic variables at the two sites are also significantly different. The fish assemblage and abiotic variables at the KRBAP resemble those of its (upstream) source reservoir, but contrasts with those of nearby natural forest streams. The unique fish assemblage in the KRBAP is shown to be stable, with similar species captured in high abundances across the three sampling years post-rehabilitation. Given the stability within the rehabilitated stream, further research and monitoring are needed to determine the established food web and predict the possible influence of future non-native species additions.
•Rehabilitation of a concretised canal created a novel fish assemblage.•Fish species richness and % native species are higher in rehabilitated river sections.•The rehabilitated waterway remained dominated by non-native fish species.•Fish assemblage and abiotic variables resemble source reservoir not forest streams.</description><subject>Abiotic factors</subject><subject>Baseline studies</subject><subject>Biodiversity</subject><subject>Biological surveys</subject><subject>Canals</subject><subject>Cichlidae</subject><subject>Civil engineering</subject><subject>Community ecology</subject><subject>Creeks & streams</subject><subject>Fish</subject><subject>Food chains</subject><subject>Food webs</subject><subject>Freshwater</subject><subject>Freshwater fishes</subject><subject>Indigenous species</subject><subject>Introduced species</subject><subject>Meandering</subject><subject>Native organisms</subject><subject>Native species</subject><subject>Natural streams</subject><subject>Naturalisation</subject><subject>Non-native</subject><subject>Rehabilitation</subject><subject>Reservoirs</subject><subject>River meanders</subject><subject>Rivers</subject><subject>Soil erosion</subject><subject>Species richness</subject><subject>Spillways</subject><subject>Stability</subject><subject>Stormwater</subject><subject>Streams</subject><subject>Tilapia</subject><subject>Tropical climate</subject><subject>Tropical depressions</subject><subject>Tropical storms</subject><subject>Upstream</subject><subject>Urban</subject><subject>Waterways</subject><issn>0925-8574</issn><issn>1872-6992</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNqFkE9LAzEQxYMoWKsfQQh43ppkm2xyEin-g6Igeg7Z7KTNst3UJFX89qa0d0-PGd57w_wQuqZkRgkVt_0MbBhgXM0YYbTsBOXkBE2obFgllGKnaEIU45XkzfwcXaTUE0IaxtUEvb7D2rR-8NlkH0YcHDY4x7D11gw45RA31Y_JEHEXjR-xjVCmVExj-IYBO5_W2KQEm3YwK7hEZ84MCa6OOkWfjw8fi-dq-fb0srhfVnZO6lw5BpJzK4E1ilLhiDT1XAnFRGOAt9apTlhGHHONcsTJVpK9sK5RsquNqKfo5tC7jeFrBynrPuziWE5qxmvJeCmWxcUPLhtDShGc3ka_MfFXU6L36HSvj-j0Hp0-oCu5u0MOygvfHqJO1sNoofMRbNZd8P80_AGbZ3m7</recordid><startdate>20210301</startdate><enddate>20210301</enddate><creator>Wilkinson, Clare L.</creator><creator>Kwik, Jeffrey T.B.</creator><creator>Ow, Andre M.W.</creator><creator>Lim, Rayson B.H.</creator><creator>Liu, Shanshan</creator><creator>Tan, Claudia L.Y.</creator><creator>Saw, Abel C.Y.</creator><creator>Liew, Jia Huan</creator><creator>Yeo, Darren C.J.</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7QO</scope><scope>7SN</scope><scope>7T7</scope><scope>7UA</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H97</scope><scope>L.G</scope><scope>P64</scope></search><sort><creationdate>20210301</creationdate><title>Rehabilitation of a tropical storm-water drain creates a novel fish assemblage</title><author>Wilkinson, Clare L. ; Kwik, Jeffrey T.B. ; Ow, Andre M.W. ; Lim, Rayson B.H. ; Liu, Shanshan ; Tan, Claudia L.Y. ; Saw, Abel C.Y. ; Liew, Jia Huan ; Yeo, Darren C.J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c403t-f2e855c8e279116f08a34969267ae5bcf9d6c20f2f79f0f8b80f0f82d798d3a63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Abiotic factors</topic><topic>Baseline studies</topic><topic>Biodiversity</topic><topic>Biological surveys</topic><topic>Canals</topic><topic>Cichlidae</topic><topic>Civil engineering</topic><topic>Community ecology</topic><topic>Creeks & streams</topic><topic>Fish</topic><topic>Food chains</topic><topic>Food webs</topic><topic>Freshwater</topic><topic>Freshwater fishes</topic><topic>Indigenous species</topic><topic>Introduced species</topic><topic>Meandering</topic><topic>Native organisms</topic><topic>Native species</topic><topic>Natural streams</topic><topic>Naturalisation</topic><topic>Non-native</topic><topic>Rehabilitation</topic><topic>Reservoirs</topic><topic>River meanders</topic><topic>Rivers</topic><topic>Soil erosion</topic><topic>Species richness</topic><topic>Spillways</topic><topic>Stability</topic><topic>Stormwater</topic><topic>Streams</topic><topic>Tilapia</topic><topic>Tropical climate</topic><topic>Tropical depressions</topic><topic>Tropical storms</topic><topic>Upstream</topic><topic>Urban</topic><topic>Waterways</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wilkinson, Clare L.</creatorcontrib><creatorcontrib>Kwik, Jeffrey T.B.</creatorcontrib><creatorcontrib>Ow, Andre M.W.</creatorcontrib><creatorcontrib>Lim, Rayson B.H.</creatorcontrib><creatorcontrib>Liu, Shanshan</creatorcontrib><creatorcontrib>Tan, Claudia L.Y.</creatorcontrib><creatorcontrib>Saw, Abel C.Y.</creatorcontrib><creatorcontrib>Liew, Jia Huan</creatorcontrib><creatorcontrib>Yeo, Darren C.J.</creatorcontrib><collection>CrossRef</collection><collection>Aqualine</collection><collection>Biotechnology Research Abstracts</collection><collection>Ecology Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</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) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Ecological engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wilkinson, Clare L.</au><au>Kwik, Jeffrey T.B.</au><au>Ow, Andre M.W.</au><au>Lim, Rayson B.H.</au><au>Liu, Shanshan</au><au>Tan, Claudia L.Y.</au><au>Saw, Abel C.Y.</au><au>Liew, Jia Huan</au><au>Yeo, Darren C.J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Rehabilitation of a tropical storm-water drain creates a novel fish assemblage</atitle><jtitle>Ecological engineering</jtitle><date>2021-03-01</date><risdate>2021</risdate><volume>161</volume><spage>106150</spage><pages>106150-</pages><artnum>106150</artnum><issn>0925-8574</issn><eissn>1872-6992</eissn><abstract>A 2.7-km canalised section of the Kallang River, a major storm-water drain and reservoir spillway in Singapore, was rehabilitated into a 3-km naturalised, meandering river between 2009 and 2011. A combination of plants, natural materials, and civil engineering techniques were introduced to soften the edges of the waterway, to give it a more natural appearance and prevent soil erosion. Baseline data and published evidence of enhancement of aquatic biodiversity in this naturalised urban waterway are lacking, as there have not been any comprehensive biological surveys of the system to date. To determine the effect of rehabilitation, we quantitatively compared the fish assemblage and abiotic variables in the Kallang River after its rehabilitation (re-named Kallang River at Bishan-Ang Mo Kio Park or KRBAP; 2016–2018) against a downstream unrehabilitated section of the river (Kallang Canal; 2012). Secondly, we qualitatively compared fish assemblages and abiotic variables at the KRBAP and the Kallang Canal, to their source (upstream) reservoir, as well as to natural forest streams in close proximity. The KRBAP has a unique fish assemblage, which is dominated by two non-native cichlid taxa (quetzal cichlid, Vieja melanura (68%) and tilapia, Oreochromis spp. (17%)). Fish species richness (p < 0.001) and the percentage of native species (p = 0.015) was significantly higher in the KRBAP compared to the unrehabilitated canal. Moreover, the abiotic variables at the two sites are also significantly different. The fish assemblage and abiotic variables at the KRBAP resemble those of its (upstream) source reservoir, but contrasts with those of nearby natural forest streams. The unique fish assemblage in the KRBAP is shown to be stable, with similar species captured in high abundances across the three sampling years post-rehabilitation. Given the stability within the rehabilitated stream, further research and monitoring are needed to determine the established food web and predict the possible influence of future non-native species additions.
•Rehabilitation of a concretised canal created a novel fish assemblage.•Fish species richness and % native species are higher in rehabilitated river sections.•The rehabilitated waterway remained dominated by non-native fish species.•Fish assemblage and abiotic variables resemble source reservoir not forest streams.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.ecoleng.2021.106150</doi></addata></record> |
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| subjects | Abiotic factors Baseline studies Biodiversity Biological surveys Canals Cichlidae Civil engineering Community ecology Creeks & streams Fish Food chains Food webs Freshwater Freshwater fishes Indigenous species Introduced species Meandering Native organisms Native species Natural streams Naturalisation Non-native Rehabilitation Reservoirs River meanders Rivers Soil erosion Species richness Spillways Stability Stormwater Streams Tilapia Tropical climate Tropical depressions Tropical storms Upstream Urban Waterways |
| title | Rehabilitation of a tropical storm-water drain creates a novel fish assemblage |
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