Taxonomic and functional differentiation in Brazilian creeks driven by the mass introduction of ornamental fish

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F24%3A100999" target="_blank" >RIV/60460709:41210/24:100999 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/article/10.1007/s10750-024-05732-x" target="_blank" >https://link.springer.com/article/10.1007/s10750-024-05732-x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10750-024-05732-x" target="_blank" >10.1007/s10750-024-05732-x</a>

Result language

angličtina

Original language name

Taxonomic and functional differentiation in Brazilian creeks driven by the mass introduction of ornamental fish

Original language description

The introduction of non-native aquarium fish species has modified the composition of fish assemblages worldwide. This anthropogenic impact alters not only the richness/abundance of local assemblages but also the taxonomic and functional composition among them. To investigate this phenomenon, we conducted a standardized sampling program in degraded headwater creeks located in the largest ornamental aquaculture center of Brazil, with the aim of quantifying spatial and temporal changes in taxonomic and functional diversity induced by fish escapes. Data were organized in two periods: “historical”, which included the native species pool of the region, and “current” (divided in “past” and “present”), which included all native and non-native species recorded during 2015–2017 (past) and 2022 (present). Fish assemblages showed taxonomic and functional differentiation through time, and the continuous introduction of non-native fish from 2015 to 2022 contributed to increase species richness in local assemblages. Trait diversity did not differ across native/non-native fish assemblages, and non-native assemblages had smaller body sizes than natives. Our study provides strong evidence that escapes of non-native ornamental fish induces changes in taxonomic and functional fish diversity in small creeks, representing a significant threat to these fragile ecosystems.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10617 - Marine biology, freshwater biology, limnology

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Hydrobiologia

ISSN

0018-8158

e-ISSN

1573-5117

Volume of the periodical

neuvedeno

Issue of the periodical within the volume

neuvedeno

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

21

Pages from-to

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UT code for WoS article

001366350000001

EID of the result in the Scopus database

2-s2.0-85210504844