Effects of temperature regime on growth and daily rhythms of digestive factors in Nile tilapia (Oreochromis niloticus) larvae

Santo, Amanda Hastenreiter Espirito; Alba, Gonzalo de; Reis, Yane da Silva; Costa, Leandro Santos; Sánchez-Vázquez, F.J.; Luz, Ronald Kennedy; Ribeiro, Paula Adriane Pérez; López‐Olmeda, José Fernando

doi:10.1016/j.aquaculture.2020.735545

Cited by 16 publications

(2 citation statements)

References 55 publications

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“…Here, the abundance of hemoglobin and red blood cells were significantly reduced, although the amount of white blood cells and blood glucose were increased. Higher temperature (31 • C) also showed positive effects on the metabolism of tilapia and greater growth was observed, which was supported by the increased digestive enzymes genetic expression [100].…”

Section: Temperature Fluctuationmentioning

confidence: 78%

Tilapia Farming in Bangladesh: Adaptation to Climate Change

2021

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In Bangladesh, aquaculture is critically important in terms of providing food and nutrition, sustainable livelihoods, income, and export earnings. Nevertheless, aquaculture in Bangladesh has faced recent concerns due to climate change. Aquaculture is vulnerable to a combination of climatic factors, such as global warming, rainfall variation, flood, drought, temperature fluctuation, and salinity change. Considering the vulnerability of fish production to the impacts of climate change, tilapia farming is one of the possible strategies for adaptation to climate change. The positive culture attributes of tilapia are their tolerance to low water levels and poor water quality with rainfall variation, temperature fluctuation, and salinity change. In fact, tilapia farming is possible in a wide range of water environments, including freshwater, brackish water, and saltwater conditions. We suggest that appropriate tilapia culture strategies with institutional support and collaboration with key stakeholders are needed for adaptation to environmental change.

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Section: Temperature Fluctuationmentioning

confidence: 78%

Tilapia Farming in Bangladesh: Adaptation to Climate Change

2021

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“…La larvicultura puede considerarse la etapa más importante y crítica en la cadena de producción de acuicultura (13,14), debido a la sensibilidad de los organismos a la infección patógena, al manejo nutricional y a los cambios en los parámetros del agua (15,16,17). La temperatura puede ser un factor determinante y limitar la calidad larval durante el desarrollo temprano (1), lo que puede afectar directamente el comportamiento y el metabolismo e influir en el crecimiento y la supervivencia (1,8,18,19,20). Las temperaturas superiores a las consideradas ideales para una especie determinada pueden provocar desviaciones de energía en la búsqueda de oxígeno (21), pérdida de nutrientes a través de disfunciones metabólicas, pérdida de calor (22), acumulación de desechos de nitrógeno y reducción de la alimentación (23), mientras que las bajas temperaturas pueden inducir una ingesta de alimentos reducida (24), cambios en la actividad enzimática y en la osmorregulación (25) y, en consecuencia, un crecimiento reducido.…”

Section: Introductionunclassified

Effects of temperature and live prey concentration on Colossoma macropomum larviculture

Costa dos Santos,

Soares da Costa Julio,

De Sena Souza

et al. 2024

Rev MVZ Córdoba

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Objective. The study evaluated the performance and survival of Colossoma macropomum larvae at different temperatures and concentrations of prey. Materials and methods. Two temperatures (28 and 32ºC) (T) and two initial daily concentrations (500 and 1,000 Artemia nauplii per larva) (CP) of prey were used. These concentrations were increased every 5 days during the first 15 days of cultivation. From the 16th to the 30th day, the larvae received exclusively a commercial diet. Results. In the first 7 days, weight (P), total length (TL) and daily specific growth rate (SGR) were higher for T32 treatments (p<0.05). After 15 days, P, TL and SGR were higher for CP1000 (p<0.05). After 22 days, P and TL suffered the effect of the initial concentration of prey and water temperature with higher values for CP1000 and T32 (p<0.05). At the end of 30 days of cultivation, P was affected only by water temperature with higher values for T32 (p<0.05). The TL showed an effect of temperature and initial concentration of prey with higher values for CP1000 and T32 (p<0.05). During feeding with a commercial diet (days 16-30 of cultivation), survival was higher for T32 (94.38±6.12%) (p<0.05), with no difference for initial prey concentration. Conclusions. It is concluded that the larviculture of C. macropomum must be carried out with a temperature of 32° C and that the food management must be differentiated during the first 15 days, positively influenced in the period of feeding with ration.

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Combined blue light and daily thermocycles enhance zebrafish growth and development

et al. 2022

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In the wild, the light/temperature environment cyclically oscillates insofar as the temperature rises after dawn and drops after dusk. In the underwater photo‐environment, light is filtered through the water column so that blue photons reach greater depths. This paper investigates the combined effects of both factors with two temperature regimes (constant temperature = 26°C, CTE vs. daily thermocycle = 28°C day:24°C night, TC) and three light wavelengths (white‐W, blue‐B, red‐R) on Danio rerio embryos and larvae from fertilization to 30 days post‐fertilization (dpf). It studied hatching rate, larval survival, growth, and food intake (gut content). It analyzed the expression of the genes involved in stress (crh), somatic growth (gh, ifg1a, igf2a), and food intake control (npy, agrp, ghrelin, orexin, mch1, mch2, grp, cck8) at 10 and 30 dpf. The results revealed that the lowest hatching rate was in R regardless of the temperature regime. The highest growth rate was for the larvae reared with B + TC, which was consistent with the highest expression values of the growth factors. The highest feeding and expression levels of the genes involved in food intake were for the larvae in B (regardless of the temperature regime) and W + TC. Conversely, the R + CTE combination obtained the worst growth and feeding results. These findings indicate that the best larval performance can be achieved with combinations of blue wavelengths and cyclic temperature regimes that come closer to those in the natural environment. These results should be considered when optimizing rearing protocols to improve the growth and welfare of the fish larvae.

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Effects of temperature regime on growth and daily rhythms of digestive factors in Nile tilapia (Oreochromis niloticus) larvae

Cited by 16 publications

References 55 publications

Tilapia Farming in Bangladesh: Adaptation to Climate Change

Tilapia Farming in Bangladesh: Adaptation to Climate Change

Effects of temperature and live prey concentration on Colossoma macropomum larviculture

Combined blue light and daily thermocycles enhance zebrafish growth and development

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