Physiological effects of incidental capture and seasonality on juvenile green sea turtles (Chelonia mydas)

Miguel, Camila; Becker, José Henrique; Freitas, Betânia Souza de; Andrade, Luciana Bavaresco; Salvador, Mirian; Oliveira, Guendalina Turcato

doi:10.1016/j.jembe.2020.151460

Cited by 9 publications

(4 citation statements)

References 62 publications

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“…This could be due to a rise in temperature being associated with an increase in blood GLI concentration (Silvestre et al, 2013). Miguel et al (2020) also found increased GLI concentration in green sea turtles ( Chelonias mydas ), associating this fact to increased carbohydrate and protein intake.…”

Section: Resultsmentioning

confidence: 91%

“…This variability could be due to some intrinsic factors, such as genetic variations and sex (Campbell, 2014). Previous studies conducted in other crocodilians typically describe reference values of blood parameters for wild individuals (under natural conditions) or in controlled rearing situations (Brandt et al, 2022; Hamilton et al, 2016), and few investigations incorporate those parameters in stress studies (Miguel et al, 2020). This is the first report that incorporates stress situations to study variations in blood biochemical parameters and applies micro technique for measuring biochemical analytes of plasma of juvenile C. latirostris .…”

Section: Resultsmentioning

confidence: 99%

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Blood biochemistry parameters of Broad snouted caiman, Caiman latirostris subjected to stress conditions, appliying micro‐volume techniques

et al. 2023

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Plasma biochemistry values represent a crucial and minimally invasive tool for evaluating nutritional and physiological condition of the animal. Biochemical data provides valuable information in those species exposed to environmental stressors. In this study, we aimed to apply for the first time micro‐volume plasma tests to measured total plasma protein, albumin, and glucose in juvenile Caiman latirostris and to compare our results with other studies reporting crocodilian biochemistry values. We found that caimans from heat treatment were heavier, longer and had higher levels of glucose than those from the control group. Conversely, food restricted caimans had less growth, body condition and had 32.1% lower albumin concentrations than those from the control group. While no significant differences were observed in any parameters measured from water restricted caimans compared with control group. The values obtained for each of the biochemical determinations were lower than those previously reported for adult of C. latirostris, but similar finding for protein concentration compared with Alligator mississippiensis. Micro technique offers the advantage of increasing information and at the same time a greater physiological understanding of the crocodilians species.

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Section: Resultsmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 99%

Blood biochemistry parameters of Broad snouted caiman, Caiman latirostris subjected to stress conditions, appliying micro‐volume techniques

et al. 2023

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“…In reptiles, corticosterone is correlated with blood lactate levels [18,19]. This measurement, thus, is another way to indirectly assess physiological stress [18,[20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Use of Blood Lactate in Assessment of Manual Capture Techniques of Zoo-Housed Crocodilians

Molinaro

Anderson

Gruny

et al. 2022

Animals

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Species-specific welfare indicators are important in promoting positive welfare for zoo animals. Reptiles are a notoriously understudied group in regards to behavior, welfare needs, and husbandry requirements. Using opportunistically obtained samples, we evaluated how blood lactate is affected by variation in manual capture and restraint in crocodilians. Lactate is an indicator of anerobic metabolism in reptiles. It offers a relatively simple and indirect way to assess physiological stress. Determining the best way to reduce struggling during capture and associated stress is of great importance to these species’ overall welfare. Blood samples (N = 53) were collected from 10 different species of crocodilians. It was found that age class was a significant predictor variable of lactate levels after capture, and longer handling time seemed to cause an increase in lactate. Finally, draining enclosure pools for a small number of the captures was associated with higher lactate levels compared to other capture factors that were recorded. This study showed that welfare of captive crocodilians could be improved by shortening the duration of physical restraint events when possible. Developing objective measures of welfare and establishing baseline recommendations for care and handling of crocodilians will ultimately promote and improve their wellbeing, along with that of other understudied reptiles in zoos.

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“…The normality of each biochemical parameter level is compared with population-level reference intervals (Banaee et al 2020;Camargo et al 2020;Vistro et al 2020). Moreover, these parameters are useful for detecting physiological abnormalities that may occur due to seasonal changes, ontogeny, sexual maturity, gender, dietary changes, and infectious diseases (Finlayson et al 2020;Miguel et al 2020;Scheelings et al 2020;Tezak et al 2020;da Fonseca et al 2020). Such this information can be a diagnostic tool for monitoring the health of surviving populations in endangered ecosystems (Bloodgood et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Hematological and Biochemical Reference Intervals for Euphrates Softshell Turtle (Rafetus euphraticus)

Soltanian

Gholamhosseini

Banaee³

et al. 2021

Iran J Sci Technol Trans Sci

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Physiological effects of incidental capture and seasonality on juvenile green sea turtles (Chelonia mydas)

Cited by 9 publications

References 62 publications

Blood biochemistry parameters of Broad snouted caiman, Caiman latirostris subjected to stress conditions, appliying micro‐volume techniques

Blood biochemistry parameters of Broad snouted caiman, Caiman latirostris subjected to stress conditions, appliying micro‐volume techniques

Use of Blood Lactate in Assessment of Manual Capture Techniques of Zoo-Housed Crocodilians

Hematological and Biochemical Reference Intervals for Euphrates Softshell Turtle (Rafetus euphraticus)

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