Cold-stunning in sea turtles is a frequent natural cause of mortality and is defined as a hypothermic state due to exposure to water temperatures <12°C. Derangements of biochemistry and hematology data by cold stunning have been well documented, although the effects on coagulation have not yet been investigated. The objectives of this study were to characterize the hemostatic state of non-cold-stunned sea turtles and to compare cold-stunned sea turtles at admission and after successful rehabilitation via a sea turtle-specific thromboelastography (TEG) protocol. TEG enables evaluation of the entire coagulation process, and the methodology has recently been established in sea turtles. Initially, 30 wild and apparently healthy sea turtles were sampled as controls: loggerhead sea turtles (), =17; Kemp's ridley sea turtles (), = 8; and green turtles (), = 5. In addition, paired TEG samples were performed on 32 and 14 at admission and prerelease after successful rehabilitation from cold stunning. Statistically significant differences in reaction time, kinetics, angle, and maximum amplitude parameters in and species demonstrated that the time taken for blood clot formation was prolonged and the strength of the clot formed was reduced by cold stunning. These findings indicate that cold stunning may cause disorders in hemostasis that can contribute to the severity of the condition. Early diagnosis of coagulopathies in the clinical assessment of a cold-stunned sea turtle may influence the treatment approach and clinical outcome of the case.
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http://dx.doi.org/10.1638/2018-0142 | DOI Listing |
Int J Mol Sci
January 2025
Department of Animal and Veterinary Sciences, Aarhus University, Blichers Alle 20, DK-8830 Tjele, Denmark.
To investigate the impact of age on the metabolomic profile of loggerhead sea turtles (), this study analyzed 100 plasma samples of individuals across two age groups-50 post-hatchlings and 50 juveniles-from various locations along the Mediterranean coastline. Both targeted and untargeted metabolomic analyses were performed on the samples. Our results demonstrated a significant age-related effect on the metabolomic profiles in both analyses.
View Article and Find Full Text PDFInt J Mol Sci
January 2025
Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, Ministry of Education, Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou 571158, China.
Taurine is essential for sustaining the body's physiological equilibrium and is extensively utilized as a dietary supplement and immune system enhancer for aquatic creatures. The gut microbiota serves as a vital health indicator in animals. In this study, our goal was to evaluate the effects of dietary taurine on the gut microbiome of Chinese stripe-necked turtles ().
View Article and Find Full Text PDFAnimals (Basel)
January 2025
Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou 571158, China.
Freshwater turtle species preservation relies on understanding their population dynamics and geographical distribution. Amur softshell turtles (ASTs []) are poorly protected due to insufficient awareness and the population in Northeastern China has experienced a steep decline compared to previous years. This study aims to investigate the population density and structure of ASTs in the Jewellery Island area of the Ussuri River in Northeast China using continuous-time capture-recapture methods in closed populations.
View Article and Find Full Text PDFAntioxidants (Basel)
January 2025
Key Laboratory of Tropical and Subtropical Fishery Resources Application and Cultivation, Ministry of Agriculture and Rural Affairs, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, China.
To investigate the effect of tannic acid (TA) on the growth, disease resistance, and intestinal health of Chinese soft-shelled turtles, individual turtles were fed with 0 g/kg (CG), 0.5 g/kg, 1 g/kg, 2 g/kg, and 4 g/kg TA diets for 98 days. Afterwards, the turtles' disease resistance was tested using .
View Article and Find Full Text PDFMar Pollut Bull
January 2025
Australian Rivers Institute, Griffith University, Australia. Electronic address:
Differences in trophic level may result in differences in chemical exposure between species of sea turtles, as pollutants may bioaccumulate differentially in diet items. It is, therefore, crucial to understand species-specific differences in exposure and effect to accurately assess chemical risk to individual species. This study used blood collected from green and loggerhead turtles foraging in Moreton Bay, Queensland, Australia, to assess differences in chemical exposure and effect of two species foraging in the same area at different trophic levels.
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