How Can Accurate Landing Stats Help in Designing Better Fisheries and Environmental Management for Western Atlantic Estuaries?

Barletta, M.; Lima, André R. A.; Dantas, David Valença; Oliveira, Igor M.; Neto, Jurandyr Reis; Fernandes, Cezar A. F.; Farias, Eduardo Guilherme Gentil de; Filho, Jorge Luiz Rodrigues; Costa, Mônica F.

doi:10.1007/978-3-319-56179-0_20

Cited by 12 publications

(25 citation statements)

References 79 publications

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“…The estuary receives freshwater from the Tubarão River basin which discharges directly in the low estuary. The middle estuary, where the presently reported study was carried, presents limnetic to oligohaline conditions, with a seasonal influence of rainfall patterns (Barletta et al 2017).…”

Section: Methodsmentioning

confidence: 93%

“…Study area. The presently reported study was carried out in the Laguna Estuarine Complex (LEC) (Barletta et al 2017) is located in southern Brazil (central coordinates: 048.75°W, 28.35°S), formed by the Santo Antonio dos Anjos, Imaruí, and Mirim lagoons (18 400 ha). More details about LES abiotic factors can be found in Barletta et al 2017.…”

Section: Methodsmentioning

confidence: 99%

“…The presently reported study was carried out in the Laguna Estuarine Complex (LEC) (Barletta et al 2017) is located in southern Brazil (central coordinates: 048.75°W, 28.35°S), formed by the Santo Antonio dos Anjos, Imaruí, and Mirim lagoons (18 400 ha). More details about LES abiotic factors can be found in Barletta et al 2017. Each lagoon is linked to the other by small channels, and the water flows to the sea through a single channel (for the map of the area see Marques 2011).…”

Section: Methodsmentioning

confidence: 99%

“…Transitional coastal wetlands, such as estuaries, coastal lagoons, mangroves, or salt marshes, are among the richest aquatic ecosystems in the world, supporting a diversity of organisms, many of them of commercial value (Barletta et al 2017). In this sense, the penaeid shrimp fisheries is one of the most relevant economic activities in these coastal zones, representing almost 80% of global shrimp catches with wide range occurrence around the world (Broadhurst 2000, D'Incao et al 2002.…”

Section: Introductionmentioning

confidence: 99%

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Proposed bycatch-reduction modifications of shrimp fyke nets used in South American lagoons

Farias¹,

Pereira-Júnior²,

Domingos³

et al. 2019

Acta Ichthyol. Piscat.

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Domingos M.M., Dantas D.V. 2019. Proposed bycatch-reduction modifications of shrimp fyke nets used in South American lagoons. Acta Ichthyol. Piscat. 49 (1): 1-7.Background. Shrimp fisheries using fyke nets have been associated with a massive acquisition of teleost fishes as bycatch, potentially resulting in the decimation of their stocks. Based on this assumption, the presently reported study intended to test an alternative modification of a commonly used fyke net, in order to minimize the impact of its low selectivity. Materials and methods. To evaluate the alternative design proposed in this work, a total of 44 sampling efforts, including 22 with a control gear (CG) and 22 with a modified gear (MG), were conducted at a subtropical coastal lagoon system located in southern Brazil. In all trials, the fyke nets were installed at the fishing area approximately at 18:00 h and removed approximately at 06:00 h. The duration of each trial was nearly 12 h, which was similar to the catching time preferred by local fishermen. Results. Bycatch (BC) was preponderant in both modalities but the results showed that MG presented a reduction by 66 percentage points in BC catches, being more selective than CG. Additionally, the non-parametric test showed no significant differences of shrimp catches between the fishing gears used (MG and CG). So, the tested bycatch reduction devices (BRD) reduced the bony fishes acquisition preserving the volume of the target catch. Conclusion. The vertical opening reduction due the adoption of guiding panel + fan upper panel contributed to bycatch reduction, being a consistent BRD to reduce the potential impacts of this fishing gear over the bony fishes stocks.

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Section: Methodsmentioning

confidence: 93%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Proposed bycatch-reduction modifications of shrimp fyke nets used in South American lagoons

Farias¹,

Pereira-Júnior²,

Domingos³

et al. 2019

Acta Ichthyol. Piscat.

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“…To set efficient management plans, knowledge on the current status of elasmobranch populations, as well as local fishing profiles are necessary, since capture patterns may vary based on regional protocols (Coll et al 2013;Bradai et al 2018). Speciesspecific fishery statistics, together with biological and ecological data, are essential for determining priority management actions for ecosystems (Davidson et al 2016;Barletta et al 2017;Gemaque et al 2017). Thus, the proper identification of species that are being harvested must be ensured by both national and international legislation.…”

Section: Discussionmentioning

confidence: 99%

Does legislation affect elasmobranch conservation and research in Brazil? A case study from Paraná State

Wosnick¹,

Prado²,

Giareta³

et al. 2020

Rev. Nordestina Biol.

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In Brazil, regulations for fishing for elasmobranchs are scarce, as well as insufficient monitoring and management. The first catch regulation for the group was published in 1998 (IBAMA No. 121/98). Despite the ban on finning, the legislation provides legal support for evisceration and decapitation prior to landing. Such practices have become particularly problematic for proper monitoring since decharacterization impairs the correct identification of species. In addition, processing is detrimental to research, as many studies rely on sampling of biological material (e.g., blood), posing an additional challenge for researchers using commercial fishing animals for scientific purposes. This study aimed to characterize the frequency of this practice in a representative artisanal fishing community in the fishing of elasmobranchs. The three years of monitoring show that landing patterns of gutted and beheaded animals are influenced by the species caught and the catch volumes of the day. In addition, endangered species protected by legislation were mostly landed already processed. We discuss the findings focusing on the need to revise the legal framework for the commercial landing of elasmobranchs and possible promising ways to address this challenge.

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Population dynamics and movements of Atlantic tarpon, Megalops atlanticus, in the Parnaíba Delta Protected Area, Brazil: challenges for local fishery management planning

Fernandes¹,

Cunha²,

Silva³

et al. 2022

Environ Biol Fish

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How Can Accurate Landing Stats Help in Designing Better Fisheries and Environmental Management for Western Atlantic Estuaries?

Cited by 12 publications

References 79 publications

Proposed bycatch-reduction modifications of shrimp fyke nets used in South American lagoons

Proposed bycatch-reduction modifications of shrimp fyke nets used in South American lagoons

Does legislation affect elasmobranch conservation and research in Brazil? A case study from Paraná State

Population dynamics and movements of Atlantic tarpon, Megalops atlanticus, in the Parnaíba Delta Protected Area, Brazil: challenges for local fishery management planning

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