Behavioral thermoregulation in the intertidal fish Girella laevifrons (kyphosidae): The effect of starvation

José Pulgar, Francisco Bozinovic, F. Patricio Ojeda

Resultado de la investigación: Article

22 Citas (Scopus)

Resumen

One of the key factors that determine an animal's distribution and abundance is environmental temperature. This factor affects all the components of an organism's energy budget and fitness. In this study, we tested the effect of water temperature and starvation on patterns of space use in the intertidal fish Girella laevifrons. We postulated that starved animals would select cold temperatures as a mechanism of energy conservation while fed animals would prefer higher temperatures as a mechanism to facilitate digestive processes. In a thermal gradient tank, fishes, irrespective of treatment (fed and starved), actively selected temperatures between 15 and 18°C. Starvation did not affect temperature selection, although it did alter the time and number of visits to thermal gradient extremes. Starved fishes stayed longer in, and visited the warmer temperatures of the gradient more frequently. In contrast, fed fishes stayed longer in, and visited cold temperatures more frequently. We discuss the ecological consequences of temperature selection and the possible relationship between water temperature, food selection and digestive processes.

Idioma originalEnglish
Páginas (desde-hasta)27-38
Número de páginas12
PublicaciónMarine and Freshwater Behaviour and Physiology
Volumen32
N.º1
DOI
EstadoPublished - 1 ene 1999

Huella dactilar

Kyphosidae
Girella
thermoregulation
Body Temperature Regulation
Starvation
starvation
Fishes
Temperature
fish
temperature profiles
temperature
water temperature
animal
aquaculture tanks
energy conservation
Hot Temperature
Animal Distribution
food selection
space use
Food Preferences

ASJC Scopus subject areas

  • Oceanography
  • Physiology
  • Aquatic Science

Citar esto

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Behavioral thermoregulation in the intertidal fish Girella laevifrons (kyphosidae) : The effect of starvation. / Pulgar, José; Bozinovic, Francisco; Ojeda, F. Patricio.

En: Marine and Freshwater Behaviour and Physiology, Vol. 32, N.º 1, 01.01.1999, p. 27-38.

Resultado de la investigación: Article

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AU - Pulgar, José

AU - Bozinovic, Francisco

AU - Ojeda, F. Patricio

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