Environmental contamination and developmental abnormalities in eggs and hatchlings of the common snapping turtle (Chelydra serpentina serpentina) from the Great Lakes—St Lawrence River basin (1989–1991)

Bishop, Christine A.; Ng, Peggy; Pettit, Karen; Kennedy, Sean W.; Stegeman, John J.; Norstrom, Ross J.; Brooks, Ronald J.

doi:10.1016/s0269-7491(98)00005-0

Cited by 115 publications

(79 citation statements)

References 40 publications

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“…However, large quantities of chemicals are still used in agriculture and vector control in tropical countries (Lacher and Goldstein, 1997). Exposure to OCs is known to affect immune, reproductive and endocrine function in reptiles leading to deleterious effects such as disruption of sex determination, decreased hatching rate and increased hatchling deformities and disorientation (Bishop et al, 1991(Bishop et al, , 1998Bergeron et al, 1994). But the exact role of chemical pollutants in sea turtle health is not known and no information on toxicological effects and detrimental threshold is available for marine reptiles.…”

Section: Introductionmentioning

confidence: 99%

“…We showed previously that leatherback turtles nesting on Yalimapo beach in French Guiana, a major nesting site for the species, displayed a low hatching rate (Caut et al, 2006) and detectable but low levels of toxic trace elements in blood and eggs . This raises concerns about other environmental contaminants such as OCs which have been shown to affect sensitive early stages of life and the viability of the offspring of several reptiles species; these adverse effects have been shown for eggs treated experimentally with low dose of pesticides (between 0.25 and 14 ng of trans-Nonachlor, chlordane or pp 0 -DDE per egg) or for eggs sampled in contaminated areas with concentrations up to 1000 and 3500 ng g À1 of pesticides and PCBs respectively (Woodward et al, 1993;Bishop et al, 1998;Willingham, 2001). Current levels have been described in marine turtles (Supporting Material -SM, Table 1), however toxicokinetic and potentially harmful effects of OCs remain poorly known.…”

Section: Introductionmentioning

confidence: 99%

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Maternal transfer of chlorinated contaminants in the leatherback turtles, Dermochelys coriacea, nesting in French Guiana

et al. 2010

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a b s t r a c tWe examined the maternal transfer of organochlorine contaminants (OCs), pesticides (DDTS and HCHs) and polychlorinated biphenyls (PCBs), and the temporal variation of blood and eggs concentrations from 38 leatherback turtles (Dermochelys coriacea) nesting in French Guiana. PCBs were found to be the dominant OCs with respective mean concentrations of 55.14 ng g À1 lipid-mass for egg and 1.26 ng mL À1 wetmass for blood. OC concentrations were lower than concentrations measured in other marine turtles which might be due to the lower trophic position (diet based on gelatinous zooplankton) and to the location of their foraging and nesting grounds. All OCs detected in leatherback blood were detected in eggs, suggesting a maternal transfer of OCs. This transfer was shown to depend on female blood concentration for RDDTs and for the most prevalent PCB congeners, since significant relationships were found between paired blood-egg concentrations. During the nesting season, OC concentrations in eggs and the percentage of lipid in eggs were found to decline in successive clutches, highlighting a process of offloading from females to their eggs and a decreasing investment of lipid from females into their clutches. OCs in eggs tended to be higher in females spending 3 years in the foraging grounds between two nesting seasons than in those spending 2 years, suggesting an impact of time spacing two breeding seasons, called remigration interval, and of location of the foraging grounds.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Maternal transfer of chlorinated contaminants in the leatherback turtles, Dermochelys coriacea, nesting in French Guiana

et al. 2010

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“…1997, birds (Sanderson et al 1994), reptiles (Bishop et al 1998;Rie et al 2000) and amphibians (Huang et al 2001). In cetaceans, levels of CYPIAI expression in liver of beluga whale were correlated to concentrations of L mono-ortho and non-ortho PCBs (known inducers of CYPIAI) in blubber , and elevated skin benzo(a)pyrene monooxygenase activity (which is attributable to CYPlAI expression) was correlated with higher organochlorine concentrations in blubber of fin whale and striped dolphin ).…”

Section: Introductionmentioning

confidence: 99%

Cytochrome P450 1A1 and aromatase (CYP19) in cetaceans : enzyme expression and relationship to contaminant exposure

Wilson¹

2003

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“…However, in other turtle species, dioxin and other toxic chemicals have been implicated in developmental abnormalities (Bishop et al 1998) and reproductive impairment (Shelby-Walker et al 2009). Bioaccumulated contaminants in M. annamensis may also present risks to human consumers, as has been shown in other species of turtles utilized for food and traditional medicine (Green et al 2010).…”

Section: Conservation Biology Of Freshwater Turtles and Tortoises • Cmentioning

confidence: 99%

Mauremys annamensis (Siebenrock 1903) – Vietnamese Pond Turtle, Annam Pond Turtle, Rùa Trung Bộ.

McCormack¹,

Dawson²,

Hendrie³

et al. 2014

Chelonian Research Monographs

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]; 8 Deceased summary. -The Vietnamese Pond Turtle, Mauremys annamensis (Family Geoemydidae), is a medium-sized (carapace length to 285 mm in females, 232 mm in males), highly aquatic turtle known only from the lowland wetlands of central Vietnam. Field records are limited and the natural history of M. annamensis is poorly known, in part due to the difficulty in conducting research within the species' native range as a result of conflict and political isolation during much of the period since its description. Recent work has delimited the historical distribution and gathered evidence for the historical abundance of M. annamensis, but also indicates that the species has largely been extirpated across its range and is now extremely rare in the wild. Over-collection and habitat loss are the greatest contributors to the species' decline, while pollution and interspecific hybridization may represent additional threats. Substantial international trade in M. annamensis occurred in the past, and despite national and international protection for the species, surviving populations continue to be threatened by intensive collection efforts. In captivity, the species acclimates well and breeds readily, with females capable of producing several clutches of eggs per year. Current conservation efforts include greater enforcement of trade restrictions, the establishment of a protected habitat area, and planning for future reintroductions from captive stocks. Continued research and conservation measures are required to save this critically endangered species.

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Environmental contamination and developmental abnormalities in eggs and hatchlings of the common snapping turtle (Chelydra serpentina serpentina) from the Great Lakes—St Lawrence River basin (1989–1991)

Cited by 115 publications

References 40 publications

Maternal transfer of chlorinated contaminants in the leatherback turtles, Dermochelys coriacea, nesting in French Guiana

Maternal transfer of chlorinated contaminants in the leatherback turtles, Dermochelys coriacea, nesting in French Guiana

Cytochrome P450 1A1 and aromatase (CYP19) in cetaceans : enzyme expression and relationship to contaminant exposure

Mauremys annamensis (Siebenrock 1903) – Vietnamese Pond Turtle, Annam Pond Turtle, Rùa Trung Bộ.

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