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- Observation of Izumi River creatures
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Observation of Izumi River creatures
Last Updated March 13, 2024
Report on the results of the Izumi River Aquatic Biological Observation Meeting (conducted on May 23, 2015)
On Saturday, May 23, 2015, we held a creature observation party at the waterside of Futatsu Bridge on the Izumi River.
The day was blessed with good weather and I was able to see many creatures.
| Species | Name | Remarks |
|---|---|---|
| Fish | Abrahaya | River Biological Index of Yokohama City, "very beautiful" river indicator species |
| Fish | Oikawa | |
| Fish | Loach | "Beautiful" river indicator species in Yokohama City's river biological index |
| Fish | Loach | River Biological Index of Yokohama City, "very beautiful" river indicator species |
| Insects | A friend of Kagerou | |
| Insects | Cooniyanma | Larvae (yago) |
| Insects | Kocatsutobikera | |
| Insects | Koshibosoyanma | Larvae (yago) |
| Insects | A friend of Shimatobikera | |
| Insects | A friend of buyu | |
| Insects | Yamasanae | Larvae (yago) |
| Others | Crayfish | Exotic species |
| Others | American horn beetle | Exotic species |
| Others | Kawanina | "Beautiful" river indicator species in Yokohama City's river biological index |
| Others | Beetle | Indicator species of "somewhat dirty" river in the river biological index of Yokohama City |
※For details of water quality evaluation, please see the biological index (PDF: 658KB) for water quality evaluation. The waterside of Futatsu Bridge corresponds to the source-up basin, so the index of the source-up basin is used.
※Since the habitat (water quality class) has a wide range of index species to some extent, the water quality class where two or more index species have been confirmed is used as the water quality evaluation value at that point. From this result, it was found that the waterside of Futatsu Bridge is a "very beautiful" river.
Voices from the participants
- I found that there are many fish in the Izumi River.
- The river was cold and cleaner than I thought
- It was meaningful to be able to observe living things in a familiar place, etc.
Izumi River Bird Watching Results Report (conducted on February 27, 2016)
Bird watching was carried out in Izumi River on Saturday, February 27, 2016.
We invited Seya Environmental Net, an environmental activity group in Seya Ward, as lecturers to observe birds using binoculars while walking along the way from the waterside of Teranowaki to Yusuichi Miyazawa. The day was blessed with good weather and I was able to see many kinds of birds.
Birds that were observed
Here are some of the birds that we could observe on the day.
All photos were taken on the day! (Photograph: Seya Environmental Net)
[From left] Japanese white-eye, kingfisher (female), kingfisher (male)
[From left] Bulbul, mallard, duck
Voices from the participants
- It was my first time for bird watching. Thank you for the kind explanation of the instructor.
- I was looking forward to it because it was my first time, but it was very good.
- I'm glad I participated. I would like to participate in another opportunity. ・・, etc.
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Inquiries to this page
Seya Ward General Affairs Department Ward Administration Promotion Division
Telephone: 045-367-5632
Telephone: 045-367-5632
Fax: 045-365-1170
Email address: se-kusei@city.yokohama.jp
Page ID: 650-947-407
