Total and methylmercury in three species of sea turtles of Baja California Sur

Kampalath, Rita Ann; Gardner, Susan C.; Méndez-Rodríguez, Lía Celina; Jay, Jennifer A.

doi:10.1016/j.marpolbul.2006.09.019

Cited by 58 publications

(30 citation statements)

References 25 publications

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“…In most studies on pollution in marine ecosystems using sea turtles, liver, kidney, muscle, heart and shell tissue samples are obtained during autopsy of animals collected from the beach or caught for commercial purposes [1,12,13,18,19]. blood sampling is an excellent, relatively noninvasive method to establish reliable baseline values of element levels in healthy sea turtles [7,11,14].…”

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confidence: 99%

Relationships between Carapace Sizes and Plasma Major and Trace Element Status in Captive Hawksbill Sea Turtles (<i>Eretmochelys imbricata</i>)

Suzuki

Noda

Yanagisawa

et al. 2012

The Journal of Veterinary Medical Science

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AbSTRAcT. The aim of this study was to evaluate the relationships between carapace parameters as indicators of age and plasma elements in 25 captive hawksbill sea turtles. Particle-induced X-ray emission allowed detection of 23 trace and major elements. There were significant but weak correlations between the virtual carapace surface area and plasma bromide (r= −0.552, P<0.01), phosphorus (r=0.547, P<0.01), lead (r=−0.434, P<0.05) and strontium (r=0.599, P<0.01), while there were no significant correlations with other elements. These results suggest that major and trace plasma elements in captive sea turtles show almost no variation with carapace parameters, suggesting that the increase in plasma elements seen in wild sea turtles might be the result of marine pollution. KEY WORDS: carapace size, hawksbill sea turtle, major elements, marine ecosystem, trace elements.

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confidence: 99%

Relationships between Carapace Sizes and Plasma Major and Trace Element Status in Captive Hawksbill Sea Turtles (<i>Eretmochelys imbricata</i>)

Suzuki

Noda

Yanagisawa

et al. 2012

The Journal of Veterinary Medical Science

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“…Also the preference of juveniles for coastal habitats can result in a higher exposure to Hg that is relatively abundant in these environments, as shown for the Ceará coast (Lacerda et al 2007). Kampalath et al (2006) also observed negative correlations between animal size and Hg content, but in the internal organs of C. mydas. These authors also associated this pattern with a change in diet between smaller and larger animals.…”

Section: Methodsmentioning

confidence: 70%

“…They are long-living animals and forage on diverse marine food chains; therefore, they have been proposed as bio-indicators of anthropogenic impacts on oceanic systems (Kampalath et al 2006, Day et al 2005. Also, sea turtles have been the object of many studies on the effects of global scale, persistent contaminants, mostly metals and organic micro-pollutants, which have been responsible for the decrease in their populations Marcotrigiano 2003, Lam et al 2004).…”

Section: Introductionmentioning

confidence: 99%

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Mercury in the sea turtle Chelonia mydas (Linnaeus, 1958) from Ceará coast, NE Brazil

Bezerra¹,

Lacerda²,

Costa³

et al. 2012

An. Acad. Bras. Ciênc.

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Mercury concentrations in carapace fragments of the green turtle Chelonia mydas from the Ceará coast in NE Brazil are reported. Concentrations varied from <0.34 to 856.6 ng.g -1 d.w., and were highest (average of 154.8 ng.g -1 d.w.) in juveniles (n = 22), whereas lowest concentrations (average of 2.5 ng.g -1 d.w.) were observed in adult/sub-adult animals (n = 3). There was a significant negative correlation between animal size and Hg concentration probably due to different diets between juveniles and sub-adults/adults. Carapace fragments, which are non-invasive, non-lethal substrates, may be of importance for monitoring purposes of these generally endangered species.

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“…In addition, Green turtles from Mexico presented the lowest T-Hg concentrations for all tissues (i.e. muscle, kidney and liver) (Kampalath et al, 2006). The T-Hg concentrations in liver of green turtle from Cear a are in a lower range than animals from China and Australia, but higher than green turtles from Japan and Mexico (Kampalath et al, 2006;Lam et al, 2004;Sakai et al, 2000;van de Merwe et al, 2010).…”

Section: Discussionmentioning

confidence: 88%

Food preferences and Hg distribution in Chelonia mydas assessed by stable isotopes

Bezerra

Lacerda

Rezende

et al. 2015

Environmental Pollution

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Total and methylmercury in three species of sea turtles of Baja California Sur

Cited by 58 publications

References 25 publications

Relationships between Carapace Sizes and Plasma Major and Trace Element Status in Captive Hawksbill Sea Turtles (<i>Eretmochelys imbricata</i>)

Relationships between Carapace Sizes and Plasma Major and Trace Element Status in Captive Hawksbill Sea Turtles (<i>Eretmochelys imbricata</i>)

Mercury in the sea turtle Chelonia mydas (Linnaeus, 1958) from Ceará coast, NE Brazil

Food preferences and Hg distribution in Chelonia mydas assessed by stable isotopes

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