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Fish fauna; Urban stream;
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The Tsurumi River, which flows through Tokyo and Kanagawa prefectures in Japan, has been urbanized since the 1950s, and 85% of the river basin is now comprises urban areas. This data reports the results of a survey of the fish fauna of a tributary river for which information is lacking.
|Bounding Coordinates||South West [35.48, 139.48], North East [35.61, 139.66]|
The species that were found belonged to the following orders: Cypriniformes (13 species), Perciformes (9 species), Siluriformes (2 species), Beloniformes (1 species), Cyprinodontiformes (1 species), Mugiliformes (1 species), and Osmeriformes (1 species). The families were Cyprinidae (10), Gobiidae (7), Cobitidae (3), Centrarchidae (2), Adrianichthyidae (1), Bagridae (1), Mugilidae (1), Osmeridae (1), Poeciliidae (1), and Siluridae (1).
|Species||Rhynchocypris lagowskii steindachneri, Plecoglossus altivelis, Gymnogobius urotaenia, Zacco platypus, Pseudogobio esocinus, Nipponocypris temminckii, Carassius auratus langsdorfii, Poecilia reticulata, Cyprinus carpio, Rhinogobius giurinus, Cobitis biwae, Rhinogobius nagoyae, Gymnogobius petschiliensis, Gnathopogon elongatus elongatus, Tridentiger obscurus, Silurus asotus, Tridentiger brevispinis, Micropterus salmoides, Lepomis macrochirus, Mugil cephalus, Oryzias latipes, Pungtungia herzi, Pseudorasbora parva|
|Start Date / End Date||2021-08-20 / 2021-10-05|
|Start Date / End Date||2021-12-28 / 2022-02-08|
Surveys were conducted at 71 sites in the Tsurumi River Basin during summers and winters, focusing on river channels that have been straightened or converted to concrete channels due to urbanization. As a result of this investigation, 10 families, 28 species, and 9,335 individuals were collected.
|Title||Database of fish fauna in a highly urbanized river (Tsurumi River Basin, Kanagawa, Japan)|
|Funding||This work was supported by a JSPS KAKENHI grant [grant number JP19H02250]|
|Study Area Description||This study was conducted on the Tsurumi River, which flows through Tokyo and Kanagawa prefectures in Japan (length of the main river channel: 43 km, basin area: 235 km2). The Tsurumi River flows through a large metropolitan area, and the land use in the basin is approximately 85% urban and 15% forest and farmland, with overcrowded urban areas distributed throughout the basin.|
|Design Description||The fish survey was conducted using a pulsed DC Smith-Root Model LR-24 backpack electrofisher (Smith-Root Inc., Vancouver, WA, U.S.A.) at each habitat (rapid, run, pool, glide, slack, and backwater) of the 71 stations. The length of the survey section was one reach (approximately ten times the width of the river channel).|
The personnel involved in the project:
The fish survey was conducted using a pulsed DC Smith-Root Model LR-24 backpack electrofisher (Smith-Root Inc., Vancouver, WA, U.S.A.) at each habitat (rapid, run, pool, glide, slack, and backwater) of the 71 stations.
|Study Extent||The investigation of fish fauna was conducted at 71 stations in the Tsurumi River basin (Fig. 1), mainly in environmentally degraded tributaries where data on fish fauna has not yet been collected. The survey was conducted during summer (August 20 to October 5, 2021) and winter (December 28 to February 8, 2022).|
Method step description:
- We recorded occurrence data, which were identified on-site and in the laboratory according to Kawanabe and Mizuno (1989) and Seno (2007).