Invasion status and reproduction of smallmouth bass <i>Micropterus dolomieu</i> in the Hinuma River upstream of Lake Hinuma, a Ramsar site in eastern Japan
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- Kimura Masashi
- Water Environment Field Station, Global and Local Environment Co-creation Institute, Ibaraki University
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- Yamaguchi Masaaki
- Water Environment Field Station, Global and Local Environment Co-creation Institute, Ibaraki University
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- Omori Kensaku
- Ibaraki Prefectural Fisheries Research Institute
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- Yamazaki Kazuya
- Ibaraki Prefectural Fisheries Research Institute, Freshwater Fisheries Branch
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- Kaneko Seiya
- Wetlands International Japan
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- Kanou Kouki
- Water Environment Field Station, Global and Local Environment Co-creation Institute, Ibaraki University
Bibliographic Information
- Other Title
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- ラムサール条約登録湿地「涸沼」に流入する涸沼川における コクチバスの侵入と再生産
Description
<p>Invasion status of an invasive alien species, Micropterus dolomieu, was ex- amined in the main stream and its tributary (Iida River and Lake Kasama) of the Hinuma River system upstream of Lake Hinuma, a Ramser site in Ibaraki Prefecture, eastern Japan. A total of 228 individuals (6.3–295 mm in body length) including adult and larvae of this species were collected at seven sites immediately downstream of the tributary from June to September in both 2019 and 2020. A spawning nest with larvae and an adult was found at one site in the main river in June 2019. These results suggest that Micropterus dolomieu have expanded their distribution by continuing to reproduce within the river system.</p>
Journal
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- Izunuma-Uchinuma Wetland Researches
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Izunuma-Uchinuma Wetland Researches 15 (0), 87-95, 2021-06-30
The Miyagi Prefectural Izunuma-Uchinuma Environmental Foundation
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Keywords
Details 詳細情報について
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- CRID
- 1390851485574539776
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- NII Article ID
- 130008059748
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- ISSN
- 24242101
- 18819559
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- Text Lang
- ja
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed