NDLI: Asian aquarium fishes in a Neotropical biodiversity hotspot: impeding establishment, spread and impacts

Content Provider	Springer Nature Link
Author	Magalhães, André L. B. Jacobi, Claudia M.
Copyright Year	2013
Abstract	We provide evidence of reproductive activities of nine Asian freshwater fish species belonging to three families in Atlantic Forest creeks located in the Paraíba do Sul River basin, southeastern Brazil, an area rich in endemic and endangered fish fauna. These non-native fishes were introduced into the natural systems by both accidental and intentional releases from ornamental fish farms in the region. Adults of all species were found reproducing during virtually all year round and showed fractionated spawning. Imature individuals (young-of-the-year and juveniles) were also frequent in the five sites. Most of the total sex ratios were close to 1:1. The frequent releases, warm water temperature, marginal vegetation providing food, protection and spawning sites, and the low richness of native fishes in these creeks can facilitate the establishment process of all species. The creeks can also act as dispersing agents of non-native fishes after flash floods, leading to biotic homogenization or differentiation in the local fish community, competition with native fishes, and parasite dissemination. Given the flourishing aquaculture activity in the area, it is expected that these and other non-native species cause extensive modifications in the regional ichthyofauna.
Starting Page	2157
Ending Page	2163
Page Count	7
File Format	PDF
ISSN	13873547
Journal	Biological Invasions
Volume Number	15
Issue Number	10
e-ISSN	15731464
Language	English
Publisher	Springer Netherlands
Publisher Date	2013-03-16
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Fish farms Propagule pressure Non-native species Biotic homogenization Ichthyofauna Ecology Freshwater & Marine Ecology Plant Sciences Developmental Biology
Content Type	Text
Resource Type	Article
Subject	Ecology Ecology, Evolution, Behavior and Systematics

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