Trace Metal and Organochlorine Pesticide Concentrations in Cold-Stunned Juvenile Kemp's Ridley Turtles (Lepidochelys kempii) from Cape Cod, Massachusetts

Innis, Charles J.; Tlusty, Michael F.; Perkins, Christopher; Holladay, Steven D.; Merigo, Constance; Weber, E. Scott

doi:10.2744/ccb-0707.1

Cited by 44 publications

(29 citation statements)

References 84 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1), suggesting that any correlations observed with toxic elements are a result of past exposure and not due to changes in food intake or from tissue mobilization during the nesting season. These results add to the existing literature regarding accumulation and the potential effects of toxic elements on marine turtle health (Day et al, 2007;Innis et al, 2008;Komoroske et al, 2011;Register, 2011;Camacho et al, 2013;Villa et al, 2017;Ley-Quiñónez et al, 2017;Perrault et al, 2017).…”

Section: Discussionsupporting

confidence: 58%

“…Since the publication of Finlayson et al (2016), three additional studies examined correlations between hematological and plasma biochemistry analytes and toxic elements in marine turtles (green turtles: Villa et al, 2016;Perrault et al, 2017;loggerheads: Ley-Quiñónez et al, 2017;Kemp's ridleys: Perrault et al, 2017). These seven studies documented correlations between toxic elements and indicators of disease (e.g., fibropapillomatosis), body condition, organ function, immune function, ion regulation, oxidative stress, and overall health; however, these results are often not discussed due to confounding factors (e.g., size, season, sex) or due to lack of understanding of reptilian toxicology ( Innis et al, 2008;Komoroske et al, 2011;Labrada-Martagόn et al, 2011;Camacho et al, 2013;). Additionally, four publications have reported risk assessments of toxic elements in freshwater and marine turtles.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Toxic elements and associations with hematology, plasma biochemistry, and protein electrophoresis in nesting loggerhead sea turtles (Caretta caretta) from Casey Key, Florida

Perrault

Stacy

Lehner

et al. 2017

Environmental Pollution

View full text Add to dashboard Cite

Toxic elements (arsenic, cadmium, lead, mercury, selenium, thallium) are a group of contaminants that are known to elicit developmental, reproductive, general health, and immune system effects in reptiles, even at low concentrations. Reptiles, including marine turtles, are susceptible to accumulation of toxic elements due to their long life span, low metabolic rate, and highly efficient conversion of prey into biomass. The objectives of this study were to (1) document concentrations of arsenic, cadmium, lead, mercury, selenium, and thallium in whole blood and keratin from nesting loggerhead sea turtles (Caretta caretta) from Casey Key, Florida and document correlations thereof and (2) correlate whole blood toxic element concentrations to various hematological and plasma biochemistry analytes. Baselines for various hematological and plasma analytes and toxic elements in whole blood and keratin (i.e., scute) in nesting loggerheads are documented. Various correlations between the toxic elements and hematological and plasma biochemistry analytes were identified; however, the most intriguing were negative correlations between arsenic, cadmium, lead, and selenium with and α- and γ-globulins. Although various extrinsic and intrinsic variables such as dietary and feeding changes in nesting loggerheads need to be considered, this finding may suggest a link to altered humoral immunity. This study documents a suite of health variables of nesting loggerheads in correlation to contaminants and identifies the potential of toxic elements to impact the overall health of nesting turtles, thus presenting important implications for the conservation and management of this species.

show abstract

Section: Discussionsupporting

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Toxic elements and associations with hematology, plasma biochemistry, and protein electrophoresis in nesting loggerhead sea turtles (Caretta caretta) from Casey Key, Florida

Perrault

Stacy

Lehner

et al. 2017

Environmental Pollution

View full text Add to dashboard Cite

show abstract

“…Sea turtles are caught (by bycatch or incidentally) mostly in the summer, precisely when consumption presents the greatest potential hazards to human health (Haswell-Elkins et al 2007;Senko et al 2011). Many toxic substances can bioaccumulate in sea turtle tissues (Aguirre et al 2006;Al-Rawahy et al 2008;Innis et al 2008;Garcia-Fernandez et al 2009;Oros et al 2009;van de Merwe et al 2009a), and, as top predators, these animals are exposed to multiple sources of contamination. The fishing communities in our study recognize that pollution affects sea turtle ecosystems and can contaminate the animals.…”

Section: Discussionmentioning

confidence: 99%

Perceptions of fishers to sea turtle bycatch, illegal capture and consumption in the San Ignacio‐Navachiste‐Macapule lagoon complex, Gulf of California, Mexico

Aguilar-González

Luna‐González

Aguirre

et al. 2014

Integrative Zoology

View full text Add to dashboard Cite

In this study, 10% of all registered fishermen in the coastal towns of Navachiste in Sinaloa, in northwestern Mexico, answered a survey designed to collect data on their perceptions of the following topics: the impact of turtle meat consumption; human health; bycatch; illegal turtle fishing; the illegal sea turtle market; the local economy; pollution; environmental education; the success of protective legislation; and sea turtle-based ecotourism. Perceptions were analyzed using the fuzzy logic method through classification into 5 fuzzy membership sets: VL, very low; L, low; M, moderate; H, high; VH, very high. The 9 topics generated decision areas upon applying fuzzy inference that revealed the membership level of the answers in each fuzzy set. The economic potential of sea turtle-based ecotourism and the economic profitability of the illegal turtle meat market were perceived as VL. Conservation legislation was perceived as H, although inefficiently applied due to corruption. Ecotourism and impacts on sea turtles were perceived as VL, because they were deemed unprofitable activities at the individual and community levels. Environmental education was perceived as L, because it centers on nesting, hatching and releasing turtles and is directed at elementary and middle-school students. While fishers perceive a serious negative impact of fishing activities on sea turtles in the San Ignacio-Navachiste-Macapule area, they do not see themselves individually as part of the problem. Achieving sea turtle conservation in this region requires: suitable ecotourism infrastructure, government investments in promotion, and studies to estimate the minimum number of tourists needed to assure profitability.

show abstract

“…The majority of these publications investigated health parameters in blood (n = 7, 47%). Of these, four publications drew correlations between blood parameters and metal concentrations (Day et al, 2007;Innis et al, 2008;Komoroske et al, 2011;Camacho et al, 2013b), while four Table 2 Number of toxicity studies organised by marine turtle species and sub-category of toxicological research. Some publications were counted more than once as they included more than one species or research sub-category.…”

Section: Correlative Publicationsmentioning

confidence: 99%

The current state and future directions of marine turtle toxicology research

Finlayson

Leusch

Merwe

2016

Environment International

View full text Add to dashboard Cite

Trace Metal and Organochlorine Pesticide Concentrations in Cold-Stunned Juvenile Kemp's Ridley Turtles (Lepidochelys kempii) from Cape Cod, Massachusetts

Cited by 44 publications

References 84 publications

Toxic elements and associations with hematology, plasma biochemistry, and protein electrophoresis in nesting loggerhead sea turtles (Caretta caretta) from Casey Key, Florida

Toxic elements and associations with hematology, plasma biochemistry, and protein electrophoresis in nesting loggerhead sea turtles (Caretta caretta) from Casey Key, Florida

Perceptions of fishers to sea turtle bycatch, illegal capture and consumption in the San Ignacio‐Navachiste‐Macapule lagoon complex, Gulf of California, Mexico

The current state and future directions of marine turtle toxicology research

Contact Info

Product

Resources

About