Effects of temperature and volume of water on the growth and development of tadpoles of Pleurodema diplolister and Rhinella granulosa (Amphibia: Anura)

Maciel, Thely A.; Juncá, Flora Acuña

doi:10.1590/s1984-46702009000300005

Cited by 21 publications

(11 citation statements)

References 14 publications

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“…Tadpoles exposed to low volumes of water increased their tail length and tail muscle depth as well as their growth and development rates. Maciel & Junca () found that the interaction between both factors (temperature and volume of water) had no influence on the development of larvae of Pleurodema diplolister and Chaunus granulosa and that the temperature was responsible for a reduction of the time of development in larvae of both species.…”

Section: Discussionmentioning

confidence: 99%

Influence of light intensity, water volume and density in tadpoles raised in mesocosm experiments

et al. 2014

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The ability of an organism to produce different phenotypes under different environmental conditions is a common adaptation in nature. Biotic factors like competition, community structure and predation can influence the survival and time to metamorphosis in amphibians. However, abiotic factors such as the hydroperiod and light intensity can be as important as biotic ones. We examine the influence of abiotic (light, hydroperiod) and biotic (density) factors on the morphology, growth and development of Argenteohyla siemersi pederseni tadpoles. Our main goal was to determine whether the morphology, growth and development vary in relation to changes in water volume, light intensity and number of conspecifics. The experiment was conducted under mesocosm conditions. We used a randomized block design with a factorial combination of two densities of tadpoles, two volumes of water and two light intensity conditions. The main findings were as follows: (1) Tadpole morphology was significantly affected by density and water volume but not by light intensity. Tadpoles maintained at low density increased their tail length and tail depth, tadpoles exposed to low volumes of water increased their tail length and tail muscle depth; (2) The growth rate and development rate of tadpoles were significantly affected by the effects of volume of water and density. Tadpoles maintained at low densities and low volume of water showed a significant increase in growth and development rate; (3) The growth and development rates of tadpoles were significantly affected by the effect of light intensity. Tadpoles exposed to lower light intensity showed an increase in their growth and development rates.

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Section: Discussionmentioning

confidence: 99%

Influence of light intensity, water volume and density in tadpoles raised in mesocosm experiments

et al. 2014

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“…However, it is unclear whether the CHD9-mediated osteogenesis can be linked to the protective function against heat stress. Since water temperature is known to affect the timing of metamorphosis (Maciel and Juncá, 2009;Goldstein et al, 2017), the upregulation of CHD9 possibly be related to the body plan change associated with accelerated metamorphosis.…”

Section: Transcriptional and Translational Regulation Mechanismsmentioning

confidence: 99%

Transcriptomic Changes in Hot Spring Frog Tadpoles (Buergeria otai) in Response to Heat Stress

et al. 2021

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Buergeria frog tadpoles exhibit high thermal tolerance and are occasionally found in water pools that temporarily exceed 40°C. With the aim of understanding how they can cope with the severe heat stress, we performed RNA-seq of three heat-treated (38°C) and three control (25°C) tadpoles and compared their transcriptomic profiles. We identified 382 differentially expressed transcripts. A protein-protein interaction (PPI) network analysis of these transcripts further identified hub proteins involved in protein degradation, stress granule assembly, and global suppression of DNA transcription and mRNA translation. Along with the avoidance behavior against high water temperature, these endurance mechanisms potentially support tadpoles to survive in high temperatures for short periods of time. Similar mechanisms may exist in many other amphibian species whose habitats are prone to high temperatures.

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“…For animal populations, extrinsic factors such as climatic conditions clearly influence this relationship (ÁLVAREZ and NICIEZA, 2002;MACIEL and JUNCÁ, 2009). In these cases, ecological models (GAMITO, 1998) are indicated since weight gain rigorously reflects growth and its relationship with other variables that replace the time variable, such as length, height and width, often rules out environmental variations (SANTOS et al, 2007;GOMIERO et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Nonlinear models for morphometric analysis in Bullfrog Tadpoles

Mansano

Pereira

Peruzzi

et al. 2016

Rev. bras. saúde prod. anim.

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SUMMARY Biometric relationships are important to illustrate the growth of animals. When adjusted using nonlinear models, these relationships can provide important information that contributes to the improvement of breeding techniques. In this study, morphometric data as a function of weight obtained in four experiments involving bullfrog tadpoles were adjusted using Gompertz, Logistic, Von Bertalanffy and Brody nonlinear models and the best-fit model was determined. After fitting the parameters to the different models in each experiment, the models were compared based on confidence intervals (α = 0.05). The following criteria were used for selection of the best model: biological interpretation, residual mean square, coefficient of determination, graphic analysis, and number of iterations. Standard and total length data as a function of tadpole weight converged in the four models. The Logistic and Gompertz models had no biological interpretation for some datasets. The Brody model provided the lowest residual mean square and number of iterations for the variables studied in all experiments. The Brody relative growth rate (K) was lower for total length when compared to standard length, indicating a greater initial growth in standard length. The Brody model was the best to describe the growth in standard and total length of bullfrog tadpoles as a function of weight.

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Effects of temperature and volume of water on the growth and development of tadpoles of Pleurodema diplolister and Rhinella granulosa (Amphibia: Anura)

Cited by 21 publications

References 14 publications

Influence of light intensity, water volume and density in tadpoles raised in mesocosm experiments

Influence of light intensity, water volume and density in tadpoles raised in mesocosm experiments

Transcriptomic Changes in Hot Spring Frog Tadpoles (Buergeria otai) in Response to Heat Stress

Nonlinear models for morphometric analysis in Bullfrog Tadpoles

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