Invasion risks posed by ornamental freshwater fish trade to southeastern Brazilian rivers

Magalhães, André Lincoln Barroso; Jacobi, Claudia Maria

doi:10.1590/s1679-62252013005000003

Cited by 68 publications

(59 citation statements)

References 26 publications

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“…For example, excessive growth and unexpected aggressive behavior of fishes may lead to environmental problems, i.e, aquarium dumping (Duggan et al, 2006;Gertzen et al, 2008). Under these circumstances, many hobbyists are poorly informed about adequate practices (i.e, correct disposal of pets or even sacrifice), and discard unwanted pets into nearby waterways (Duggan et al, 2006;Gertzen et al, 2008;Magalhães, Jacobi, 2013a;Azevedo-Santos et al, 2015;Maceda-Veiga et al, 2016). Pet abandonment has become one of the most challenging issues in biosecurity concerning species invasions (CBD, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…For instance, in Australia, Taiwan, Singapore and Japan, aquarium dumping is the main cause of non-native fish species introduction (Bomford, Glover, 2004;Liang et al, 2006;Ng, Tan, 2010;Ishikawa, Tachihara, 2014). In Brazil, where native fish diversity is high (Frehse et al, 2016), official reports of aquarium dumping are rare, but evidence indicates that this activity is frequent and increasing in several regions (Gomes et al, 2011;Magalhães, Jacobi, 2013a;Garcia et al, 2014;AzevedoSantos et al, 2015;França et al, 2017). There are records regarding small characids, osphronemids and poeciliids (Magalhães, Jacobi, 2013a;Azevedo-Santos et al, 2015), but the market of large-bodied non-native aquarium fishes may represent an important source of fish propagules.…”

Section: Introductionmentioning

confidence: 99%

“…In Brazil, where native fish diversity is high (Frehse et al, 2016), official reports of aquarium dumping are rare, but evidence indicates that this activity is frequent and increasing in several regions (Gomes et al, 2011;Magalhães, Jacobi, 2013a;Garcia et al, 2014;AzevedoSantos et al, 2015;França et al, 2017). There are records regarding small characids, osphronemids and poeciliids (Magalhães, Jacobi, 2013a;Azevedo-Santos et al, 2015), but the market of large-bodied non-native aquarium fishes may represent an important source of fish propagules. Sales of large ornamental species, known as "tankbusters" among hobbyists, has grown rapidly in the last decade (Magalhães, Jacobi, 2010;Gomes et al, 2011;Magalhães, Jacobi, 2013a;Garcia et al, 2014;França et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…There are records regarding small characids, osphronemids and poeciliids (Magalhães, Jacobi, 2013a;Azevedo-Santos et al, 2015), but the market of large-bodied non-native aquarium fishes may represent an important source of fish propagules. Sales of large ornamental species, known as "tankbusters" among hobbyists, has grown rapidly in the last decade (Magalhães, Jacobi, 2010;Gomes et al, 2011;Magalhães, Jacobi, 2013a;Garcia et al, 2014;França et al, 2017). Different large species have been translocated among watersheds, including fishes from the Amazon basin (e.g.…”

Section: Introductionmentioning

confidence: 99%

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Small size today, aquarium dumping tomorrow: sales of juvenile non-native large fish as an important threat in Brazil

et al. 2017

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Informal sales of large-bodied non-native aquarium fishes (known as "tankbusters") is increasing among Brazilian hobbyists. In this study, we surveyed this non-regulated trade on Facebook ® from May 2012 to September 2016, systematically collecting information about the fishes available for trading: species, family, common/scientific names, native range, juvenile length, behavior, number of specimens available in five geographical regions from Brazil. We also assessed the invasion risk of the most frequently sold species using the Fish Invasiveness Screening Test (FIST). We found 93 taxa belonging to 35 families. Cichlidae was the dominant family, and most species were native to South America. All species are sold at very small sizes (< 10.0 cm), and most display aggressive behavior. The hybrid Amphilophus trimaculatus × Amphilophus citrinellus, Astronotus ocellatus, Uaru amphiacanthoides, Osteoglossum bicirrhosum, Cichla piquiti, Pangasianodon hypophthalmus, Datnioides microlepis and Cichla kelberi were the main species available. The southeast region showed the greatest trading activity. Based on biological traits, the FIST indicated that Arapaima gigas, C. kelberi and C. temensis are high-risk species in terms of biological invasions via aquarium dumping. We suggest management strategies such as trade regulations, monitoring, euthanasia and educational programs to prevent further introductions via aquarium dumping.Keywords: Aquarium releases, Aquarium trade, Biological invasions, Invasiveness, Propagule pressure.A venda de juvenis de peixes não-nativos de grandes dimensões, chamados de "peixes jumbo", está aumentando entre aquaristas no Brasil. Neste trabalho, pesquisou-se este comércio informal pelo Facebook ® de maio/2012 a setembro/2016, coletando-se informações sobre espécies, família, nomes vulgares/científicos, origem, tamanho juvenil, comportamento e número/frequência de exemplares disponíveis nas cinco regiões geográficas do Brasil. Também avaliou-se o risco de invasão das espécies mais vendidas usando o protocolo Fish Invasiveness Screening Test (FIST). Foram encontradas 93 espécies pertencentes a 35 famílias. Cichlidae foi a família dominante, e a maioria das espécies é nativa da América do Sul. Todas as espécies foram vendidas como juvenis (< 10.0 cm), e a maioria exibe comportamento agressivo. O híbrido Amphilophus trimaculatus × Amphilophus citrinellus, Astronotus ocellatus, Uaru amphiacanthoides, Osteoglossum bicirrhosum, Cichla piquiti, Pangasianodon hypophthalmus, Datnioides microlepis e Cichla kelberi foram as espécies mais comercializadas. A região sudeste apresentou a maior porcentagem de vendas, e o FIST mostrou que Arapaima gigas, C. kelberi e C. temensis foram consideradas de alto risco para desencadear invasões biológicas mediadas por descarte de aquários. Recomendações como a regulação do comércio, monitoramento, sacrifício das espécies e campanhas educacionais para os aquaristas são sugeridas para evitar futuras introduções de peixes via descarte de aquários. Palavras-chave:Comércio o...

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Small size today, aquarium dumping tomorrow: sales of juvenile non-native large fish as an important threat in Brazil

et al. 2017

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“…The bulk of the traded animals is imported to the USA, EU, and Japan (Padilla and Williams, 2004;Ploeg, 2013). Although freshwater fishes comprise the core of this sector (Silas et al, 2011;Magalhães and Jacobi, 2013), freshwater crayfish have been recognized as constituting a significant part and their popularity has been increasing in recent decades (Chucholl, 2013). Unfortunately, negative consequences resulting from the release of New NICS into natural habitats are particularly apparent in Europe (Chucholl, 2013;Faulkes, 2015a;Patoka et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

East European crayfish stocks at risk: arrival of non-indigenous crayfish species

Kotovska

Khrystenko

Patoka

et al. 2016

Knowl. Manag. Aquat. Ecosyst.

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-An increasing number of non-indigenous crayfish species (NICS) of apparently pet trade origin have become established particularly in Europe. Especially alarming are recent confirmation of two distantly separated marbled crayfish Procambarus fallax f. virginalis populations in Ukraine and indications of more North American cambarids present in the local pet market. The present study aimed to investigate crayfish species availability within the Ukrainian pet trade together with the climate match and risk they represent to the freshwater ecosystems generally and indigenous crayfish species in particular. Altogether, 15 NICS belonging to all three crayfish families were detected. Considering their origin, availability, probability of establishment, invasiveness and further aspects, marbled crayfish and red swamp crayfish Procambarus clarkii appear to be potentially the most troubling. Available information obtained from the pet trade in ornamental crayfish as a whole demonstrates that the broad availability of NICS most probably overlaps the vast majority of European indigenous crayfish species distribution, including the endemic thick-clawed crayfish Astacus pachypus, which occupies only a limited area that is situated critically close to established marbled crayfish populations. Negative effects of NICS on freshwater ecosystems as a whole can be also expected.

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Irresponsible vendors: Non‐native, invasive and threatened animals offered for garden pond stocking

Patoka

Bláha

Kalous

et al. 2016

Aquatic Conservation

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1. The pet trade has been responsible for many introductions of non-native species. Freshwater ornamental plants and animals originating from the pet trade are stocked to garden ponds.The present survey focused on awareness and responsible behaviour related to biological invasion risks of companies that designed, built, and stocked garden ponds. 2. A representative number (n = 124) of companies (commercial garden pond architects and builders) in the Czech Republic were surveyed regarding the offer of non-native, invasive and threatened native species. The survey was conducted over the entire warm period (from 1 May 2015 to 31 September 2015) while using personal visits, correspondence and interviews to list the species on offer.3. 'Traditional' ornamental species were offered by 39.1% of surveyed vendors, non-traditional 'marginal' species by 5.6%, common native species by 6.5% and threatened native species by 2.4%.4. The findings of this study support the hypothesis that 'garden pond' vendors offer non-native species with a risk of biological invasion; moreover, threatened native animals were also on sale. It is probable that a similar situation exists in other countries. It is important for the conservation of native aquatic biota to raise awareness of the need to reduce risk through responsible behaviour of those involved in the pet trade. It is also essential to prohibit stocking of potential invaders and to enforce the illegal capture and sale of native species.

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Invasion risks posed by ornamental freshwater fish trade to southeastern Brazilian rivers

Cited by 68 publications

References 26 publications

Small size today, aquarium dumping tomorrow: sales of juvenile non-native large fish as an important threat in Brazil

Small size today, aquarium dumping tomorrow: sales of juvenile non-native large fish as an important threat in Brazil

East European crayfish stocks at risk: arrival of non-indigenous crayfish species

Irresponsible vendors: Non‐native, invasive and threatened animals offered for garden pond stocking

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