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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10617 - Marine biology, freshwater biology, limnology

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Hydrobiologia

ISSN

0018-8158

e-ISSN

1573-5117

Svazek periodika

neuvedeno

Číslo periodika v rámci svazku

neuvedeno

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

21

Strana od-do

—

Kód UT WoS článku

001366350000001

EID výsledku v databázi Scopus

2-s2.0-85210504844