Mercúrio total em cação comercializado em São Paulo - SP, Brasil

Morales-Aizpurúa, Isabel Cristina; Tenuta-Filho, Alfredo; Sakuma, Alice Momoyo; Zenebon, Odair

doi:10.1590/s0101-20611999000300024

Cited by 18 publications

(10 citation statements)

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“…1), and the correlation between these variables was not significant (p=0.068). Similarly, an absence of significant correlation between length and Hg concentration was observed for other six shark species (Squatina argentina, Prionace glauca, Sphyrna sp, Carcharias taurus and Isurus oxyrinchus) from the southeastern Brazilian coast (Morales- Aizpurúa et al, 1999). Thompson (1985) also observed a lack of correlation between total length and mercury concentration for several fish species distributed along the Tasmanian Continental Shelf.…”

Section: Resultsmentioning

confidence: 77%

Total mercury in the night shark, Carcharhinus signatus in the western equatorial Atlantic Ocean

Ferreira

Faria

Carvalho

et al. 2004

Braz. arch. biol. technol.

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Section: Resultsmentioning

confidence: 77%

Total mercury in the night shark, Carcharhinus signatus in the western equatorial Atlantic Ocean

Ferreira

Faria

Carvalho

et al. 2004

Braz. arch. biol. technol.

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“…Brazil has less stringent restrictions in regard to heavy metals in seafood than the European Union, North America, and Asia, allowing products with high levels of heavy metals that would not be marketable elsewhere to be legally commercialized in Brazil [25]. In São Paulo, for example, the largest city and economy in Brazil, 54% of the shark meat surveyed from different popular markets had mercury concentrations above the acceptable level recommended by the World Health Organization (WHO), which is approximately 1 mg Hg*kg −1 [57]. Another study specifically analyzing blue sharks found 70% of the samples with mercury levels above the recommended level [26].…”

Section: Discussionmentioning

confidence: 99%

Rethinking use and trade of pelagic sharks from Brazil

et al. 2017

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Brazil currently ranks as the 11th producer and 1st importer of shark meat around the world. Data available from the FAO software FishStatJ along with data from regional sources, such as governmental bulletins, scientific papers, gray literature and internet were revisited to identify the main issues surrounding pelagic shark fisheries, trade and consumption in the largest country in South America. Among the main findings, it was noted that Brazil has not properly collected fishery statistics since 2007, that many species of threatened sharks are freely landed and traded even though it is prohibited by local legislation and/or international recommendations (regional fisheries management organizations). The blue shark (Prionace glauca) is the most frequently recorded shark in the official bulletins and is currently a locally targeted species. Additionally, the significant imports of this species from 23 other countries that also provide fins for Asia has drawn attention in recent decades. Regarding consumption, shark is considered to be low-value seafood compared to more common fish, such as groupers and snappers, and most Brazilians actually do not know that they are eating sharks. At present, the proportion of threatened elasmobranchs (in which sharks are included) in Brazil (33%, of 145 species) exceeds the global rate identified for the group (25%), and, until the present moment, no measure related to the management of species has been implemented. As advice, Brazil urgently needs to restructure its fishery information collection systems, management strategies and to tighten sanitary and labeling regulations for the marketing of fish.

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“…O Hg inorgânico não se acumula na cadeia alimentar, mas o composto formado pela sua biometilação, o metilmercúrio, sim (ATSDR, 1999). A capacidade de acumulação em peixes e mamíferos marinhos explica a maior concentração de Hg observada nos peixes predadores, como o cação (MORALES-AIZPURÚA et al, 1999).…”

Section: Mercúriounclassified