DEVELOPMENT OF BASIN-WIDE FISH DIVERSITY POTENTIAL MAP BASED ON ENVIRONMENTAL DNA
-
- TAKIYAMA Michihito
- 山口大学大学院 創成科学研究科
-
- AKAMATSU Yoshihisa
- 山口大学大学院 創成科学研究科
-
- MIYAZONO Seiji
- 山口大学大学院 創成科学研究科
-
- FUKUMARU Daichi
- 山口大学大学院 創成科学研究科
-
- NAKAO Ryohei
- 山口大学大学院 創成科学研究科
Bibliographic Information
- Other Title
-
- 環境DNAに基づく流域網羅的な魚類多様性ポテンシャルマップの開発
Abstract
<p> In this study, we used quantitative environmental DNA metabarcoding to estimate basin-wide fish species diversity in the Takatsu River in Japan. We calculated fish diversity indices at each sampling point and used generalized linear model (GLM) to examine the relationships between the fish diversity indices and environmental factors. Using the GLM, we created fish diversity potential maps of the river. Our results showed that water temperature and river slope were correlated with species richness, while the water depth, river discharge, proportion of paddy fields, and water temperature were correlated with the Simpson diversity index. Species richness had a significant positive relationship with water temperature, and the Simpson diversity index had a significant negative correlation with the river discharge. Additionally, we observed higher species richness in the downstream and higher Simpson diversity index in both upstream and downstream areas. These results indicate that it is possible to estimate the basin-wide spatial distribution of fish diversity.</p>
Journal
-
- Japanese Journal of JSCE
-
Japanese Journal of JSCE 80 (16), n/a-, 2024
Japan Society of Civil Engineers
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390862268805113088
-
- ISSN
- 24366021
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- Crossref
-
- Abstract License Flag
- Disallowed