Pathways for sustainable industrial fisheries in southeastern and southern Brazil

Arana, Patricio M.; Pezzuto, Paulo Ricardo; Ávila-da-Silva, Antônio Olinto; Queirolo, Dante; Pérez, José Ángel Álvarez; Arfelli, Carlos Alberto

doi:10.3856/vol44-issue5-fulltext-1

Cited by 5 publications

(4 citation statements)

References 17 publications

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“…The industrial bottom gillnet fishing fleet based in the state of Santa Catarina (southern Brazil), for example, showed increasing catches between 2001 and 2008 (Pio et al, 2016). The 2000s also coincide with an oil subsidy governmental policy (Arana et al, 2016).…”

Section: Discussion General Features Of the Databasementioning

confidence: 99%

Reconstruction of Marine Commercial Landings for the Brazilian Industrial and Artisanal Fisheries From 1950 to 2015

et al. 2021

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Landing data are the most basic information used to manage fisheries, although they are often unavailable or incomplete. The objective of this work was to reconstruct the national database of marine commercial landings for the Brazilian industrial and artisanal fisheries, from 1950 to 2015. Total landings increased strongly from 1950 to mid-1980s and suffered sharp decline in the early 1990s, mainly associated to the collapse of sardine fisheries. After that, another period of increasing landings was observed, but at a much lower rate. Industrial landings always surpassed artisanal landings in Brazilian waters, except for the beginning of the time series, when many industrial fleets had not started yet, and in the early 2000s, when a change in the methodology for collecting landing statistics was implemented in the state of Pará leading to an overestimation of artisanal landings. Artisanal fisheries have been declining since 2005, which is worrisome due to the social impact it may have on local income and food security. Regional differences were also observed, with industrial landings being always higher than artisanal landings in southeastern-southern Brazil, while the opposite was true for the northern-northeastern regions. Higher landings were observed in the southeastern-southern regions when both artisanal and industrial fleets were combined. Sardine and demersal fishes were the main resources landed by industrial fishers. Artisanal fishers caught more species than their industrial counterpart, featuring Xiphopenaeus kroyeri, Cynoscion acoupa, and Ucides cordatus. Although the fishing of Epinephelus itajara was banned in Brazil, it continues to be landed. Yet, catches of this species and others under some threat status are still not properly registered, including: Carcharhinus longimanus, Galeorhinus galeus, Sphyrna lewini, Sphyrna mokarran, Pristis pectinata, and Pseudobatos horkelii. Fishing resources not identified in previous landing reconstruction efforts, such as sea urchins and sea cucumbers, have now been reported. The database presented here should be continuously updated and improved. It is of paramount importance to resume the collection of landing statistics, including information on fishing effort, to assess the relative impact of fisheries and environmental factors on the main Brazilian fishing stocks.

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Section: Discussion General Features Of the Databasementioning

confidence: 99%

Reconstruction of Marine Commercial Landings for the Brazilian Industrial and Artisanal Fisheries From 1950 to 2015

et al. 2021

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“…To understand stock dynamics, ecosystem impacts, and human activities, the collection of data during commercial fishing operations is essential (Cunha & Resgalla, 2016; Tamanaha et al, 2016). This would further allow researchers to investigate the effects of changes in fishing fleets' behavior and catch technology, driven by ecological, market‐oriented, and legal factors (Arana et al, 2016). Indeed, integrating scientific research and data into fisheries management is crucial to achieve both ecological and economic sustainability.…”

Section: Introductionmentioning

confidence: 99%

“…There is a pressing need to update knowledge regarding industrial fisheries in southeastern and southern Brazil while actively identifying innovative solutions for fishing development and management in the region. These efforts are essential for effective conservation practices (Arana et al, 2016). Species captured as bycatch in the Brazilian sardine fishery between 2008 and 2010 indicated better estimates of growth for small pelagic fish (including Clupeiformes) than for larger or more benthic associated fishes, showing the importance of studies aiming at monitoring populations and treating them accordingly (Vaz-dos-Santos & Rossi-Wongtschowski, 2013).…”

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Dietary metabarcoding of keystone sardine species reveals the importance of their ichthyoplankton prey in food webs of the Southern Brazilian Bight fisheries

de Queiroz,

Gasalla,

Laux

et al. 2024

Fisheries Oceanography

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Clupeiform fishes are ecologically and economically important species contributing to industrial and artisanal fisheries worldwide. They represent key links in food webs, influencing the dynamic between trophic levels. The dietary interactions of these species are poorly studied in many regions, yet essential for fisheries management. To elucidate the role of these species in food webs of the Southern Brazilian Bight pelagic fisheries, we used metabarcoding analysis of fish stomach contents of Clupeiformes and possible predators. Onboard sampling from March to September 2016 allowed for processing of 87 stomach samples representing 31 species (including 12 samples representing three species of Clupeiformes). Links between trophic levels showed the predominance of Sardinella brasiliensis and Engraulis anchoita as important dietary items of a large range of fishes (28 species belonging to 18 families) and representing the majority of the total prey read abundance assigned to clupeiform fishes (~46% and ~32%, respectively). Opisthonema oglinum contributed to the diet of 16 species in 13 families and ~18% of total read abundance of clupeiform fishes as prey. The appearance of multiple clupeiform taxa in the diet of predators that are not commonly associated with pelagic prey indicates that ecosystem‐based fisheries management should not be separated between pelagic and demersal fisheries. The diet of Clupeiformes revealed an unexpectedly large diversity of fish species and a low proportion of invertebrates (<5% of clupeiform prey reads). This was likely due to a combination of both a limitation of the metabarcoding method (primer bias and low success of invertebrate taxonomic identification) as well as a contribution of early life stages (ichthyoplankton) to the diet of these fishes. The potential role of clupeiform fish populations as a constraint to the recruitment from the ichthyoplanktonic phase of other ecologically or commercially important fishes should be considered as an important direction for future studies.

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“…5 In Brazil, catches peaked at just more than 950 000 tonnes in 1985, whereas sharp declines on the abundance of the main target stocks caused catches to drop to around 600 000 tonnes/annum between 1990 and 1999, before recovering to just more than 700 000 tonnes in 2016. 6,7 Sustainable management of ocean resources is a global issue that requires cooperation. The strongest recognition of this need is the inclusion of a Sustainable Development Goal on the need to strengthen the means of implementation and revitalise partnerships (SDG 17) in the UN 2030 Agenda for Sustainable Development.…”

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confidence: 99%

Research and innovation cooperation in the South Atlantic Ocean

et al. 2019

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Pathways for sustainable industrial fisheries in southeastern and southern Brazil

Cited by 5 publications

References 17 publications

Reconstruction of Marine Commercial Landings for the Brazilian Industrial and Artisanal Fisheries From 1950 to 2015

Reconstruction of Marine Commercial Landings for the Brazilian Industrial and Artisanal Fisheries From 1950 to 2015

Dietary metabarcoding of keystone sardine species reveals the importance of their ichthyoplankton prey in food webs of the Southern Brazilian Bight fisheries

Research and innovation cooperation in the South Atlantic Ocean

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