JOURNAL ARTICLE

River dam prevents the invasion of non-native species of Neocaridina Kubo, 1938 (Decapoda: Caridea: Atyidae) into native habitats: A case study in the Yumesaki River system, Japan.

  • Published In: Journal of Crustacean Biology, 2025, v. 45, n. 1. P. 1 1 of 3

  • Database: Environment Complete 2 of 3

  • Authored By: Ishii, Ryosuke; Fuke, Yusuke 3 of 3

Abstract

This article investigates the invasion and dispersal of the freshwater shrimp Neocaridina davidi, an alien species, in the Yumesaki River system, Japan, where it threatens the native species Neocaridina denticulata. Genetic and morphological analyses revealed that N. denticulata populations persist upstream of the Sugo Dam, while N. davidi has replaced native populations downstream, demonstrating that river structures like dams can act as barriers limiting invasive species spread. The study also found limited hybridization between the species, primarily at the contact zone near the dam, and highlights the rapid expansion potential of N. davidi in unfragmented river systems. These findings contribute to understanding invasive species dispersal and inform conservation strategies for native freshwater fauna.

Additional Information

  • Source:Journal of Crustacean Biology. 2025/03, Vol. 45, Issue 1, p1
  • Document Type:Article
  • Subject Area:Science
  • Publication Date:2025
  • ISSN:0278-0372
  • DOI:10.1093/jcbiol/ruaf009
  • Accession Number:184348244
  • Copyright Statement:Copyright of Journal of Crustacean Biology is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Looking to go deeper into this topic? Look for more articles on EBSCOhost.