Arsenic contamination in widely consumed Caribbean sharpnose sharks in southeastern Brazil: Baseline data and concerns regarding fisheries resources

Maciel, Oswaldo Luiz de C.; Willmer, Isabel Q.; Saint’Pierre, Tatiana Dillenburg; Machado, Wilson; Siciliano, Salvatore; Hauser‐Davis, Rachel Ann

doi:10.1016/j.marpolbul.2021.112905

Cited by 8 publications

(1 citation statement)

References 47 publications

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“…Moreover, Guanabara Bay is heavily contaminated by several chemical contaminants due to the inflow of significant amounts of untreated sewage and runoff from landfills, industries, and shipyards [ 4 , 56 ]. In fact, several elasmobranch species captured in or near this area have been reported as containing extremely high levels of both inorganic [ 57 , 58 , 59 , 60 ] and organic contaminants ([ 61 ], Hauser-Davis, pers. Obs.).…”

Section: Discussionmentioning

confidence: 99%

New Occurrences of the Tiger Shark (Galeocerdo cuvier) (Carcharhinidae) off the Coast of Rio de Janeiro, Southeastern Brazil: Seasonality Indications

Aximoff

Cumplido

Rodrigues

et al. 2022

Animals

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The tiger shark Galeocerdo cuvier (Péron & Lesueur, 1822) (Carcharhinidae) is classified as near-threatened along the Brazilian coast, in line with its global categorization. Although Rio de Janeiro, located in southeastern Brazil, is internationally identified as a priority shark conservation area, many shark species, including tiger sharks, are landed by both industrial and artisanal fisheries in this state. However, there is a lack of detailed information on the species capture pressures and records for the state of Rio de Janeiro. Therefore, the aims of this study were to expand the tiger shark record database and to improve upon future conservation and management strategies. Tiger shark records from four coastal Rio de Janeiro regions were obtained by direct observation. The information obtained from fishery colonies/associations, environmental guards, researchers, and scientific articles, totaling 23 records, resulted in an approximately 5-fold increase in the number of tiger shark records off the coast of the state of Rio de Janeiro. A possible seasonality pattern concerning the size of the captured/observed animals was noted, emphasizing the need to consider the coast of Rio de Janeiro as an especially relevant area for at least part of the life history of tiger sharks.

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