Northernmost Record of Invasive Jaguar Cichlid (Parachromis managuensis) in East Asia: Ecological Implications for Native Species in Feitsui Reservoir, Taiwan
Journal
Aquatic Conservation: Marine and Freshwater Ecosystems
Journal Volume
35
Journal Issue
12
Start Page
e70264
ISSN
1052-7613
1099-0755
Date Issued
2025-12-01
Author(s)
Abstract
The jaguar cichlid (Parachromis managuensis), an invasive species native to Central America, was first recorded in Feitsui Reservoir, Taiwan, in 2014. From 2014 to 2024, 846 individuals were captured, with abundance increasing notably from 2018. Stomach content analysis revealed predation on native crustaceans (Caridina, Macrobrachium) and native fish (Sinibrama macrops), suggesting potential ecological impacts. Growth analysis indicated negative allometric growth and signs of growth retardation in larger individuals. The decline of S. macrops may be linked to increasing predation. This study marks the northernmost record of this species in East Asia and raises concerns about its ecological impact.
Subjects
Cichlidae
ecology
invasive species
jaguar cichlid
reservoir
Publisher
Wiley
Type
journal article