In the trend of nature positivity, a survey that reveals the presence of living organisms with just a cup of water is gaining attention!
The Ministry of Land, Infrastructure, Transport and Tourism has introduced a new environmental DNA analysis technology in the "River Waterfront National Census," which will investigate the habitat conditions of organisms in first-class rivers nationwide in 2026. Environmental DNA analysis is a technique that analyzes biological information based on DNA extracted from river water, and it is expected to significantly reduce time and costs compared to traditional capture surveys. In Hiyoshi, we offer survey and analysis services that comply with the latest "Basic Survey Manual for the River Waterfront National Census."
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basic information
"Comprehensive Analysis (Fish)" estimates the preferences without specifying particular species. - Required sample volume: 1L of water - Testing days: 20 to 30 business days - Use cases: Understanding fish communities, monitoring rare species and invasive species, assessing water environment health based on biological communities, etc. "Species-Specific Analysis" examines the presence or absence of specific species in the sample and the DNA concentration. - Required sample volume: 1L of water - Testing days: 10 business days - Use cases: Understanding habitats and breeding grounds of target species, conservation of rare species and countermeasures against invasive species, evaluations based on the distribution of indicator organisms, etc. - Analyzable species: Ayu, Kawabata moroko, Kokuchi bass, Ookuchi bass, Iketchougai, Oosanshouo, and others. ★ No need to prepare sampling containers or environmental DNA preservation solutions!
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Company information
Hiyoshi Corporation provides comprehensive support for environmental projects across a wide range of fields, from analysis and measurement to industrial chemicals, facility management, and environmental conservation. With a history spanning half a century and a solid technical foundation, we engage in various activities related to the environment, including environmental analysis, maintenance of environmental infrastructure, sales of industrial chemicals, waste collection and transportation, and road maintenance. Additionally, we create and offer new solutions as part of Hiyoshi's one-stop service. In the future, we are also considering a life innovation business that applies "bioassays" (biological testing methods) using organisms developed by Hiyoshi, such as genetically modified cells, to measure environmental conditions. Furthermore, based on the belief that "environmental issues have no borders," we have been accepting over 200 trainees from 20 countries and dispatching engineers for more than 20 years, focusing on human resource development to share Hiyoshi's expertise accumulated over more than 60 years with the world. Moving forward, we anticipate that activities to realize business expansion based on our established achievements will become more active. Hiyoshi aspires to contribute to the international community with greater efforts and innovation to ensure safety and security in global living conditions.
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