Recreational fishing as a source for the monitoring of a critically endangered shark in southern Brazil

Santos, Paulo Roberto Santos dos

doi:10.1016/j.fishres.2021.106006

Cited by 6 publications

(10 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Recreational fishers were interviewed during late spring and early summer, periods of heightened tourist activity and increased recreational fishing activity along the coast (MacNeil et al., 2009; Santos, 2021). Interviews in the São Paulo State were between late 2021 and early 2022, while those in the Paraná State were between late 2022 and early 2023.…”

Section: Methodsmentioning

confidence: 99%

Dual‐method survey of recreational fishing for guitarfishes in Southern and Southeastern Brazil

Fuzetti,

Charvet,

Wosnick

2023

Fisheries Management Eco

View full text Add to dashboard Cite

We comprehensively assessed marine recreational fishing of threatened guitarfishes (Pseudobatos percellens, Pseudobatos horkelii, and Zapteryx brevirostris) in Southern and Southeastern regions of Brazil. A dual‐method approach integrated social media reports and in‐person interviews to explore practices, challenges, and conservation implications of recreational fishing for these species. Seasonal capture of guitarfishes required the promotion of catch‐and‐release, especially during gestational periods, and the development of best angling practices manuals and accessible identification guides. With a focus on land‐based activities and engagement with fishers, our findings underscored the importance of collaboration among researchers, recreational fishers, and conservationists to map and monitor recreational capture and contribute to guitarfish research and conservation.

show abstract

Section: Methodsmentioning

confidence: 99%

Dual‐method survey of recreational fishing for guitarfishes in Southern and Southeastern Brazil

Fuzetti,

Charvet,

Wosnick

2023

Fisheries Management Eco

View full text Add to dashboard Cite

show abstract

“…This strategy can help to engage fishers and other users in conservation actions and collaborative monitoring through citizen science while promoting the maintenance of biodiversity and its services (Garla et al ., 2022; Garrone‐Neto & Rodrigues, 2018; Garrone‐Neto et al ., 2018; Gibson et al ., 2019; Giovos et al ., 2019; Santos, 2021; Santos et al ., 2016, 2017). This aspect highlights the importance of maintaining good relations with fishing communities and their respective local ecological knowledge, as they allow for a more refined monitoring of fishing activity, which are essential for rare or little‐known species.…”

Section: Figurementioning

confidence: 99%

“…Among the biological information retrieved, length estimates indicate juvenile or subadult animals (between 120 and 250 cm of TL), based on data available for the species (Castro, 2000). The attention given to the length and sometimes the weight of sharks, especially when the species is not common, is one of the characteristics observed in the daily life of fishing communities, as these animals are normally exhibited as fishing trophies (Irigoyen & Trobbiani, 2016; Leduc et al ., 2021; Santos, 2021; Shiffman et al ., 2014).…”

Section: Figurementioning

confidence: 99%

“…Non-formal records found in popular literature during this period bring photographs with positive identification of this species, of specimens captured in spearfishing activities on Queimada Grande Island in 1966 (OBF Gadig, personal image bank). This strategy can help to engage fishers and other users in conservation actions and collaborative monitoring through citizen science while promoting the maintenance of biodiversity and its services (Garla et al, 2022;Garrone-Neto & Rodrigues, 2018;Gibson et al, 2019;Giovos et al, 2019;Santos, 2021;Santos et al, 2016Santos et al, , 2017. This aspect highlights the importance of maintaining good relations with fishing communities and their respective local ecological knowledge, as they allow for a more refined monitoring of fishing activity, which are essential for rare or little-known species.…”

mentioning

confidence: 99%

“…In 2018, its status was re-evaluated as critically endangered (SMA, 2018); nonetheless, some authors claim that this species could already be regionally extinct (ICMBio, 2018;Wosnick et al, 2021) available for the species (Castro, 2000). The attention given to the length and sometimes the weight of sharks, especially when the species is not common, is one of the characteristics observed in the daily life of fishing communities, as these animals are normally exhibited as fishing trophies (Irigoyen & Trobbiani, 2016;Leduc et al, 2021;Santos, 2021;Shiffman et al, 2014).…”

mentioning

confidence: 99%

See 2 more Smart Citations

Retrieving records of a rare and threatened shark in a mosaic of marine‐protected areas of southeastern Brazil

Santos

Klafke²,

Gadig

et al. 2023

Journal of Fish Biology

Self Cite

View full text Add to dashboard Cite

In this study the authors use the Fishers ecological knowledge (FEK) from the south coast of the São Paulo State, in southeastern Brazil, to recover records of Atlantic nurse shark (Ginglymostoma cirratum), a threatened with extinction species, in a mosaic of marine-protected areas (MPAs) of the south coast of São Paulo, in southeastern Brazil, in the southernmost distribution of the species in the Southwest Atlantic Ocean. For half a century, in the study area only one male of G. cirratum was officially recorded, in 1967. Retrieving records from artisanal fishers, recreational anglers, fishing guides and spearfishers added 30 more records of G. cirratum, including 2 recent captures (February/2022 and May/2022), especially around coastal islands that are covered by MPAs. Two uncommon fishing techniques, but which provided the highest number of records for the species, were documented. These are

show abstract

Endangered shark species traded as “cação” in São Paulo during the COVID-19 lockdown: DNA-barcoding a snapshot of products

Zuccolo,

Rego,

Hughes

et al. 2023

Mol Biol Rep

View full text Add to dashboard Cite

Background Elasmobranch populations are declining, predominantly driven by overfishing, and over a third of global sharks, rays, and chimeras are estimated to be threatened with extinction. In terms of trade, Brazil is ranked the eleventh-largest shark producer and the top importer of shark meat in the world. Research has shown that elasmobranchs are sold in Brazil under the name “cação” (a generic designation for cartilaginous fish) to overcome consumer resistance. Methodology and results This study used DNA barcoding to investigate the sale of sharks in the State of São Paulo during the COVID-19 lockdown. A total of 35 samples of “cação” were analysed, revealing six different shark species on sale, including Carcharhinus falciformis, Carcharhinus signatus, Carcharias taurus, Isurus oxyrinchus, and Isurus paucus, that are threatened with extinction according to the IUCN red list. This study demonstrates that vulnerable elasmobranchs are being commercialised under the label “cação” in the São Paulo State and Brazil. Conclusions Comparison of shark products traded before and during the COVID-19 pandemic showed no significant difference, suggesting lockdown did not affect patterns of species commercialisation. Effective fisheries and sale monitoring, correct product labelling legislation and increased consumer awareness that “cação” is shark are needed for appropriate conservation and management of shark populations in Brazil.

show abstract

Recreational fishing as a source for the monitoring of a critically endangered shark in southern Brazil

Cited by 6 publications

References 26 publications

Dual‐method survey of recreational fishing for guitarfishes in Southern and Southeastern Brazil

Dual‐method survey of recreational fishing for guitarfishes in Southern and Southeastern Brazil

Retrieving records of a rare and threatened shark in a mosaic of marine‐protected areas of southeastern Brazil

Endangered shark species traded as “cação” in São Paulo during the COVID-19 lockdown: DNA-barcoding a snapshot of products

Contact Info

Product

Resources

About