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The external genitalia in juvenile Caiman latirostris differ in hormone sex determinate-female from temperature sex determinate-female.
The broad-snouted caiman (Caiman latirostris) is a crocodilian species that inhabits South American wetlands. As in all other crocodilians, the egg incubation temperature during a criticalExpand
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The expression of selected genes linked to metabolic homeostasis in obese pansteatitis-suffering Mozambique tilapia, Oreochromis mossambicus (Peters).
The Oreochromis mossambicus (Peters) population inhabiting Lake Loskop, South Africa, is characterized by a high incidence of obesity and pansteatitis. We investigated potential links between theExpand
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The impacts of neutralized acid mine drainage contaminated water on the expression of selected endocrine-linked genes in juvenile Mozambique tilapia Oreochromis mossambicus exposed in vivo.
Acid mine drainage (AMD) is a global environmental concern due to detrimental impacts on river ecosystems. Little is however known regarding the biological impacts of neutralized AMD on aquaticExpand
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An evaluation of daily, seasonal and population-level variation in the thermal preference of a group-living lizard, Ouroborus cataphractus (Sauria: Cordylidae)
Ectotherms are known to function optimally within a specific range of body temperatures, bordered by two set-point values (i.e. preferred temperature range; Tp). Preferred body temperature standsExpand
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Aspects of the thermal ecology of the group-living lizard, Cordylus cataphractus : a spatial and temporal analysis
Thermal ecology is a central theme in reptilian biology because of the thermodynamic rate dependence of virtually all biological processes in these ectothermic animals. Thermoregulation includesExpand
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Applying genotoxicology tools to identify environmental stressors in support of river management.
Although bioassay approaches are useful for identifying chemicals of potential concern, they provide little understanding of the mechanisms of chemical toxicity. Without this understanding, it isExpand
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An evaluation of the endocrine disruptive potential of crude oil water accommodated fractions and crude oil contaminated surface water to freshwater organisms using in vitro and in vivo approaches.
Knowledge regarding the potential impacts of crude oil on endocrine signaling in freshwater aquatic vertebrates is limited. The expression of selected genes as biomarkers for altered endocrineExpand
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In vitro screening for endocrine disruptive activity in selected South African harbours and river mouths
Various waterborne anthropogenic contaminants disrupt the endocrine systems of wildlife and humans, targeting reproductive pathways, among others. Very little is known, however, regarding theExpand
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Mortality, teratogenicity and growth inhibition of three glyphosate formulations using Frog Embryo Teratogenesis Assay‐Xenopus
Ample evidence around the world exists suggesting a link between exposure to glyphosate, toxicity and perturbed physiological functions in non‐target organisms. Although glyphosate formulations areExpand
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An In Vitro and In Vivo Assessment of Endocrine Disruptive Activity in a Major South African River
Endocrine-disrupting contaminant (EDC) loads in rivers, and the associated risk to wildlife, may be linked to different anthropogenic stressors occupying river catchments. The aims of this study wereExpand
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