Good intentions, but bad effects: Environmental laws protects non‐native ichthyofauna in Brazil

Geller, Iago Vinicios; Garcia, Diego Azevedo Zoccal; Casimiro, Armando César Rodrigues; Pereira, Alan Deivid; Jarduli, Lucas Ribeiro; Vitule, Jean Ricardo Simões; Azevedo, Robertson Fonseca de; Órsi, Mário Luís

doi:10.1111/fme.12446

Cited by 8 publications

(3 citation statements)

References 19 publications

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“…Several recent reviews provide a good starting point to explore various aspects of aquatic invasive species (AIS) research including impacts modeling (Guy-Haim et al, 2018;Anton et al, 2019;Corrales et al, 2020;Thomsen 2020), traits and impacts (Boltovskoy et al, 2021), invasion syndromes (Novoa et al, 2020), first record rates (Seebens et al, 2017), effects on endangered and threatened species (Dueñas et al, 2018), food web effects (Gallardo et al, 2016;David et al, 2017), role of parsites in marine invasions (Goedknegt et al, 2016), impacts on ecosystem functions and services (Flood et al, 2020), management and eradiation (Simberloff, 2021), social perception (Kapitza et al, 2019) and policy issues (Geller et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Aquatic invasive species: introduction to the Special Issue and dynamics of public interest

et al. 2021

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Section: Introductionmentioning

confidence: 99%

Aquatic invasive species: introduction to the Special Issue and dynamics of public interest

et al. 2021

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“…The region where the dam was created was composed of several streams and spring, the main one being the Itamacaoca stream (Silva et al 2008) and includes streams and fountains in the vicinity to prevent the water pollution of the reservoir. While the study area is currently in pristine condition with regards to non-native alien species, the proximity to the city, Brazilian legislation changes and the nature of the reservoir puts the protected area at risk of invasion in the future (Garcia et al 2017, Pelicice et al 2018, Geller et al 2020. Dams can act as invasion hubs as well as modifying environmental conditions which allow non-native species to proliferate, all of which can contribute towards biotic homogenisation (Bunn & Arthington 2002, as well as acting as a barrier for natural species, which are restricted to parts above or below the dam.…”

Section: Discussionmentioning

confidence: 99%

Ichthyofauna of the Mata de Itamacaoca, an urban protected area from the upper Munim River basin, Northern Brazilian Cerrado

et al. 2020

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The Munim River basin is one of the main river drainages of the Hydrological unit Maranhão, but there are few published studies which focus on ichthyological surveys and taxonomic work within this basin. The present study aims to provide a fish species inventory of the Mata da Itamacaoca, one of the few urban protected areas from the upper Munim River basin, comparing the ichthyofauna with other lists by conducted at the upper Munim River basin. A total of 42 collection expeditions were conducted, the sampling was conducted at five collecting sites distributed within the boundaries of Mata de Itamacaoca, upper Munim River basin. Diversity indices were calculated and generalised linear models (GLMs) were employed to assess differences in species richness, diversity and evenness depending on season and location in relation to the reservoir dam wall. In order to visualize fish community differences, non-metric multidimensional scaling (nMDS) and a one-way PERMANOVA was used to understand whether factors of site, season and location to the dam wall had an effect on fish community compositions. A total of six orders, 13 families, and 23 fish species were found, and the order with the highest species richness, considering all reaches, was Characiformes followed by Cichliformes. The most abundant species was Nannostomus beckfordi, while Pimelodella parnahybae and Hoplerythrinus unitaeniatus were the rarer species sampled. There were no alien invasive species collected within the study area. Species richness was significantly higher below the dam wall, but there were no other significant differences in diversity indices with regards to season or location. Fish community composition was significantly different above and below the dam wall and was significantly affected by sampling site. Season did not have an effect on fish community. This study corroborates other studies conducted in the Unidade Hidrológica Maranhão sensu Hubbert and Renno (2006), that the ichthyofaunal composition and taxonomy of species within this region face major data deficits, anthropogenic impacts, this study may be a baseline for comparing similar environments throughout the region.

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“…However, this region is threatened with huge losses of its endemic species, primarily because of the introduction of non-native species (Daga et al, 2016;Gubiani et al, 2010;Mezzaroba et al, 2021). The presence of "dourado," Salminus brasiliensis, in the Iguaçu River basin represents a high risk, especially for smaller species already threatened with extinction (Geller et al, 2020). Therefore, it is important to record new occurrences, the time of presence and spread of this species in watersheds using low-cost and easy-access tools, such as citizen science.…”

Section: Introductionmentioning

confidence: 99%

New conservation opportunities: Using citizen science in monitoring non‐native species in Neotropical region

et al. 2021

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The combination of highly equipped smartphones, with the increased use of social media, has offered a wide database. Given this, citizen science can be used to record and monitor non‐native fish fauna, target new samples and collaborate with monitoring occurrences in new areas. We aimed to demonstrate the efficiency of social media in citizen science as a tool to cooperate with monitoring studies of non‐native species. Consequently, we determined the occurrence points of S. brasiliensis in the Iguaçu River basin, indicating sites of greatest occurrence and analyzing the impact of the invasion on the native fauna of the basin. Files and information available on the YouTube® and Facebook® media platforms were used as data, was carried out from April 2019 to April 2020. The results were 40 records, 22 videos obtained from Youtube, and seven videos and 11 photos from Facebook, the oldest record was from April 2013, while the largest number of posts was in 2016. Fish records available from online platforms can reveal the occurrence and progressive dispersion of species, in the context of biological invasions, these tools can be of great value in studies that aim to follow the progress of introduced species, contributing by helping to direct new sampling programs and corroborating the occurrence of species in new areas in conjunction with standard monitoring programs. Based on citizen science records, it was possible to update the range of occurrence of the non‐native S. brasiliensis in the Iguaçu River basin, cooperating with scientific knowledge. Innovative monitoring and control measures are necessary to deal with invasive species, with citizen science proving to be competent for determining the occurrence of species and showing promise in the entire field of ichthyology.

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Good intentions, but bad effects: Environmental laws protects non‐native ichthyofauna in Brazil

Cited by 8 publications

References 19 publications

Aquatic invasive species: introduction to the Special Issue and dynamics of public interest

Aquatic invasive species: introduction to the Special Issue and dynamics of public interest

Ichthyofauna of the Mata de Itamacaoca, an urban protected area from the upper Munim River basin, Northern Brazilian Cerrado

New conservation opportunities: Using citizen science in monitoring non‐native species in Neotropical region

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