| 研究課題/領域番号 |
20K06807
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| 研究機関 | 滋賀県立琵琶湖博物館 |
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研究代表者 |
Smith Robin 滋賀県立琵琶湖博物館, 研究部, 専門学芸員 (70416204)
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| 研究分担者 |
神谷 隆宏 金沢大学, 地球社会基盤学系, 教授 (80194976)
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| 研究期間 (年度) |
2020-04-01 – 2023-03-31
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| キーワード | Ostracoda / new species / alien species / rice fields |
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| 研究実績の概要 |
New data collected from rice fields, in addition to samples already collected before the project commencement, has helped to identify the main species that inhabit rice fields, and highlight species that are opportunistic visitors to this type of habitat. With the addition of this data to a database of ostracod occurrences in North East Asia (curated by the PI), it is now possible to plot the known distributions of species in North East Asia. Detailed analyses of particular species to elucidate their taxonomy, and thus improve identification, is ongoing. A manuscript was written with Japanese colleagues about a probable alien species collected from Japanese pet shops, which we consider to be a potential invasive threat to rice field ecosystems (currently in press).
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
2: おおむね順調に進展している
理由
Covid-19 has delayed some aspects of the project, such as field work in different areas and meetings between the PI and Co-I. However, due to the large amount of data already collected, and the samples taken before the commencement of the project, together with new samples taken in Shiga, these delays are not expected to be a serious hindrance. Covid-19 has, however, greatly impacted the attendance of scientific conferences at which we were planning to report our results. The fourth Asian Ostracod Meeting was postponed from November 2020, and the International Symposium on Ostracoda has been postponed from 2021 to 2022.
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| 今後の研究の推進方策 |
The main original concept of the project is to target the rice field ostracod faunas in order to identify possible invasive species. This is a sound concept and has a lot of potential in highlighting possible alien species. However, it can be complemented by research into possible routes of invasive species. One of these is the pet trade, as shown by the discovery of probable alien ostracod species from pet shops in the Kanto region of Japan. Many unwanted pets are released into the environment, and if this is done in irrigation channels or ponds connected to rice fields, there is the possibility that a species will become established in the rice field ecosystem. We are therefore looking at expanding the field work to include the sampling of ponds and irrigation channels for rice fields.
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