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Description |
Geographic Range [top]
Range Description: This species is known from the Philippines, Japan and Republic of Korea. Within Japan it is known from Honshu (Mikawa Bay), Shikoku and Kyushu (Fukuoka, Kumamoto and Oita Prefectures) (Japan Red Data Book 2007).
Countries occurrence:
Native:
Japan (Honshu, Kyushu, Shikoku); Korea, Republic of; Philippines
Additional data:
Range Map: Click here to open the map viewer and explore range.
Population [top]
Population: In Aichi Prefecture, Japan, populations of this species have decreased significantly, leading to an Endangered listing (Aichi Red Data Book 2009). In Hadong, Republic of Korea, a study found this species made up 18 % of the freshwater snail population (Seo et al. 1977).
Current Population Trend: Decreasing
Additional data:
? Population severely fragmented: No
Habitat and Ecology [top]
Habitat and Ecology: This species inhabits estuaries and brackish wetlands. Seo et al. (1977) collected it from "a reedy marshy area". It is a host of the flatworm Paragonimus ohirai (Blair et al. 1999).
Systems: Freshwater
Threats [top]
Major Threat(s): Many factors threaten the wetlands of Japan including human activities such as conversion for agriculture and urban and industrial development (Birdlife International 2009). Habitat destruction and degradation are major threats to this species, causing significant population declines in Japan and a high risk of extinction (Aichi Red Data Book 2009).
Conservation Actions [top]
Conservation Actions: This species is listed as Vulnerable on the Japanese Red List (Japan Red Data Book 2007). Regionally it is most endangered in Kagawa Prefecture (listed as Critical and Endangered), and is also Endangered or Vulnerable in Hyogo, Chiba, Shizuoka, Aichi, Oita, Kumamoto and Kagoshima Prefectures (Japan Red Data Book 2007). Further research is needed into this species global population status and the magnitude of declines.
Citation: Rintelen, T. 2011. Angustassiminea yoshidayukioi. The IUCN Red List of Threatened Species 2011: e.T188887A8657949. http://dx.doi.org/10.2305/IUCN.UK.2011-2.RLTS.T188887A8657949.en. Downloaded on 05 November 2018.
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