Photoperiodic Stimulation of Growth in Postmetamorphic Rana pipiens

Richards, Christina M.; Lehman, Grace C.

doi:10.2307/1444146

Cited by 9 publications

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“…During the metamorphic climax, there was no recorded mortality in individuals at different light levels, while in the dark it was 11.8% (Ruchin, 2020c). The results of many studies indicate the negative impact of the complete absence of light on the development and growth of amphibians (Richards & Lehman 1980; Konstantinov et al, 2000; Ruchin, 2003, 2004a; Kehr et al, 2014; Kukita et al, 2015).…”

Section: Growthmentioning

confidence: 99%

Effect of illumination on fish and amphibian: development, growth, physiological and biochemical processes

Ruchin

2020

Reviews in Aquaculture

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Being one of the main environmental factors, the light factor influences many aspects of animal life. Photoperiod, light intensity (illumination) and wavelength are the primary periodic factors. There is a review that discusses the role of illumination on various life processes of aquatic anamnia vertebrates (fish and amphibians). The effect of light on the development, growth, respiration, consumption and efficiency of food conversion, hormone release, reproduction and behaviour of fish and amphibians has been studied. Illumination influences differently a significant number of physiological and biochemical processes and reactions of anamnia vertebrates at various development stages. The obtained results show that the nature of exposure to light is species-specific and corresponds to the ecological niche of species. Illumination influences both positively and negatively the development, growth and other physiological processes of fish and amphibians. Illumination plays a special role during the first feeding of fish in the environment and aquaculture. There are positive and negative behavioural responses of fish to light. However, it is not always possible to distinguish fish species with only a negative or only a positive reaction to light. The quality of the reaction can be influenced by the stage of development of eggs or larvae, age characteristics, feeding status, season, time, the physiological state of fish, morbidity, etc. A promising area of research is the study of the influence of light on the hormonal status of the body and reproduction of fish. Also, the light pollution and its influence on the physiology of anamnia vertebrates are important.

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Section: Growthmentioning

confidence: 99%

Effect of illumination on fish and amphibian: development, growth, physiological and biochemical processes

Ruchin

2020

Reviews in Aquaculture

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Pattern of growth in a temperate zone anuran (Bufo viridis Laur.)

Jørgensen

1983

J. Exp. Zool.

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Growth in body length and mass was followed in 1-year-old toads Bufo viridis collected early August, kept in the laboratory at 20°C, and fed meal worms ad libitum for 24 h once or twice a week. The nutritional condition of the toads was evaluated from the condition index (GI) = 1,000 x body mass (g) x length (~m ) -~. The rates of growth in length were high initially, in August and September, and then dropped to insignificant levels. Growth was abruptly resumed in spring, and growth rates were high in March to May. The CI increased to a maximum in September. During the period of growth stagnation it tended to decrease. After growth was resumed in spring, the GI again increased, but with a delay. During autumn the toads allocated 0 1983 ALAN R. LISS, INC.

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Ruchin

2003

Biology Bulletin of the Russian Academy of Sciences

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Photoperiodic Stimulation of Growth in Postmetamorphic Rana pipiens

Cited by 9 publications

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Effect of illumination on fish and amphibian: development, growth, physiological and biochemical processes

Effect of illumination on fish and amphibian: development, growth, physiological and biochemical processes

Pattern of growth in a temperate zone anuran (Bufo viridis Laur.)

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