Seawater-temperature and UV-radiation interaction modifies oxygen consumption, digestive process and growth of an intertidal fish

M. Roberto García-Huidobro, Marcela Aldana, Cristian Duarte, Cristóbal Galbán-Malagón, José Pulgar

Resultado de la investigación: Contribución a una revistaArtículo

8 Citas (Scopus)

Resumen

UV-radiation (UVR) and temperatures have increased substantially over recent decades in many regions of the world. Both stressors independently have shown to affect the metabolism and growth in fish. However, because increase of both stressors are occurring concomitantly, to better understand their influences on marine species, their combined effects were evaluated. We test the hypothesis that UVR and temperature act synergistically affecting the metabolism, digestive process and growth of an intertidal fish. Two UVR conditions (with and without UVR) and two temperature levels (20° C and 25° C) were used. UVR increase the oxygen consumption and this was associated to opaque feces production. The absorption efficiency was higher without UVR at high temperatures (25 °C) and with UVR at low temperatures (20 °C). Finally, independent of UVR treatment, fish subjected to low temperature have higher biomass than those of high temperature. The interaction between UVR and temperature may influence on the physiology and growth of animals that inhabit in extreme habitats as upper intertidal, it could pose significant functional for aquatic animal survivorship.

Idioma originalInglés
Páginas (desde-hasta)408-412
Número de páginas5
PublicaciónMarine Environmental Research
Volumen129
DOI
EstadoPublicada - 2017

Áreas temáticas de ASJC Scopus

  • Oceanografía
  • Ciencias acuáticas
  • Contaminación
  • Medicina (todo)

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