Mercury concentrations in three ray species from the Pacific coast of Baja California Sur, Mexico: Variations by tissue type, sex and length

Murillo-Cisneros, Daniela A.; O’Hara, Todd M.; Castellini, J. Margaret; Sánchez-González, Alberto; Elorriaga‐Verplancken, Fernando R.; Marmolejo-Rodríguez, Ana J.; Marín‐Enríquez, Emigdio; Galván‐Magaña, Felipe

doi:10.1016/j.marpolbul.2017.10.060

Cited by 26 publications

(5 citation statements)

References 39 publications

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“…Another important aspect of Hg accumulation is its relationship with size, in which older/larger fishes generally present higher Hg content. That is the case for many predatory bone fish (Junqué et al 2018;Stafford and Haines 2001), as well as elasmobranch species (Murillo-Cisneros et al 2018;Taylor et al 2014;Sandoval-Herrera et al 2016). We found a significant positive correlation between Hg concentrations and size in H. guttatus (r spearman = 0.79), which was attributed to differences in diet between juveniles and adults.…”

supporting

confidence: 49%

Ecological and biological factors associated to mercury accumulation in batoids (Chondrichthyes: Batoidea) from northeastern Brazil

Moura

Rabelo

Bezerra

et al. 2020

Marine Pollution Bulletin

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supporting

confidence: 49%

Ecological and biological factors associated to mercury accumulation in batoids (Chondrichthyes: Batoidea) from northeastern Brazil

Moura

Rabelo

Bezerra

et al. 2020

Marine Pollution Bulletin

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“…Adult H. guttatus differently for juveniles inhabit in estuarine areas, such as the Botafogo Channel, foraging in contact with the sediment and using the snout to dig for food being more exposed to Hg present in sediments (Melo 2016, Santos 2017. Also, older individuals were more frequent in the sample of H. guttatus than in R. porosus, resulting in longer Hg exposure and accumulation (Costa et al 2009, Lyons et al 2017, Rabelo 2017, Murillo-Cisneros et al 2018. Trophic level may not be significant influencing the different Hg concentrations between these elasmobranchs.…”

Section: Discussionmentioning

confidence: 98%

Mercury concentrations in coastal Elasmobranchs (Hypanus guttatus and Rhizoprionodon porosus) and human exposure in Pernambuco, Northeastern Brazil

Julio

Moura

Lacerda

et al. 2022

An. Acad. Bras. Ciênc.

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Elasmobranchs are long-lived predatory fi sh that show high Hg concentrations generally refl ecting environmental levels, notwithstanding they are widely consumed in Brazil increasing Hg exposure to humans. This study reports on Hg concentrations in largely consumed sharks (Rhizoprionodon porosus) and rays (Hypanus guttatus) from the Pernambuco coast, NE Brazil and the risk associated with their consumption. Muscle tissue concentrations of Hg in H. guttatus and R. porosus varied from 40 to 1,020 ng.g -1 w.w. (median = 125; mean = 124 ± 48 ng.g -1 w.w.) in sharks and from 129 to 2,130 ng.g -1 w.w. (median = 976; mean = 919 ± 139 ng.g -1 w.w.) in rays. Concentrations of Hg positively correlated with size in sharks, but not in rays. Concentrations refl ect the local environmental contamination of a large urban center and industrial park concentrated in a short extension of mangrove-dominated coastline (50 km) and are higher compared to other Brazilian sites where Hg concentrations in these species have been reported.Sharks had a risk coeffi cient (HQ) range of 0.04 to 1.1, not surpassing the reference level of exposure. On the other hand, rays' HQ ranged from 0.14 to 2.3, and exceeds the reference level of exposure and suggests adverse effects to consumers.

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“…Se extrajo 500 g de músculo de 27 ejemplares (Murillo et al, 2016) para obtener información nutricional de la sección cárnica. La composición química proximal (CP) fue determinada con técnicas analíticas descritas por AOAC (1993).…”

Section: Análisis Químicosunclassified

Evaluación biológica, fisicoquímica y de potencial tecnológico del tiburón azul (Prionace glauca) procedente del pacifico sur peruano

Pariona-Velarde,

Reátegui-Quispe

2024

Rev. investig. vet. Perú

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El objetivo del estudio fue evaluar las características biológicas, fisicoquímicas y tecnológicas relacionadas del tiburón azul Prionace glauca. Se trabajó con 128 especímenes para determinar sus propiedades biológicas, tecnológicas y 27 ejemplares para sus características fisicoquímicas. Se registraron los datos biométricos de longitud y peso (142 a 281 cm y 10.5 a 93.0 kg para machos; 153.5 a 255.0 cm y 14.5 a 80.0 kg para hembras), índice de alometría (machos 3.27 y hembras 2.87), potencial tecnológico mediante diferentes tipos de rendimientos (RED: 83.9±0.03%, RESV: 67.2±0.04%, RSCV: 48.9±0.07% y RPC: 33.5±0.07%) y capacidad de retención de agua en el músculo (16.1±0.03%). Dentro de las características fisicoquímicas se analizó la composición química proximal (proteína 21.8±0.23; grasa 0.6±0.03; humedad 78.0±0.31; ceniza 1.3±0.01) y los minerales (Cu: 2.0±0.11 mg/kg, Fe: 17.8±1.95 mg/kg, Zn: 25.8±1.76 mg/kg; Ca: 4.3±0.27 mg/100 g, Mg: 95.4±7.87 mg/100 g, Na: 716.3±24.03 mg/100 g, K: 1526.1±54.4 mg/100 g, P: 439.5±15.76 mg/100 g). No hubo evidencia de diferencias significativas en función al sexo. Con base a las comparaciones realizadas con bases de datos de recursos pesqueros, el músculo de tiburón azul no presenta ventajas comparativas relativos al rendimiento, perfil mineral o composición química proximal de otras especies.

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Mercury concentrations in three ray species from the Pacific coast of Baja California Sur, Mexico: Variations by tissue type, sex and length

Cited by 26 publications

References 39 publications

Ecological and biological factors associated to mercury accumulation in batoids (Chondrichthyes: Batoidea) from northeastern Brazil

Ecological and biological factors associated to mercury accumulation in batoids (Chondrichthyes: Batoidea) from northeastern Brazil

Mercury concentrations in coastal Elasmobranchs (Hypanus guttatus and Rhizoprionodon porosus) and human exposure in Pernambuco, Northeastern Brazil

Evaluación biológica, fisicoquímica y de potencial tecnológico del tiburón azul (Prionace glauca) procedente del pacifico sur peruano

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