Nom du corpus

Corpus Systématique Animale

Titre du document

Temperature preferences and tolerances of three fish species inhabiting hyperthermal ponds on mangrove islands

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • temperature
  • tolerance
  • preference
  • ctm
  • Cyprinodon
  • Floridichthys
  • Gambusia
  • pupfish
Nom du fichier dans la ressource
Poissons_v2b_005271
Auteur(s)
  • Alan G. Heath 1
  • Bruce J. Turner 1
  • William P. Davis 2
Affiliation(s)
  • 1) Department of Biology, Virginia Polytechnic Institute and State University, 24061, Blacksburg, Virginia, USA
  • 2) Environmental Research Laboratory, 32561, Gulf Breeze, FL, USA
Résumé

The fish species Cyprinidon artifrons, Floridichthys carpio, and Gambusia yucatana inhabit shallow mangrove ponds off the coast of Belize. Portions of these ponds experience a diurnal temperature change from 26 °C at night to 40 °C and above during midday. Repeated field observations indicate Cyprinidon prefer the warmer (and much larger) portions of the ponds whereas the other two species stay in the cooler areas. The hypothesis that temperature is serving as a cue for partitioning within the ponds was supported by laboratory thermal gradient tests in which Cyprinidon preferred temperatures clearly higher than the other two species. The critical thermal maximum (CTM) was determined for the three species using members that had been acclimated to either a daily cycling temperature similar to that for the ponds, or to the mean of the 24-hour cycle (30 °C). Cyprinidon acclimated to the cycling temperature had a CTM of 45.5 °C, which apparently sets a new record for fish CTM. Acclimation to a constant 30 °C lowered the CTM to 43.7 °C. Floridichthys and Gambusia acclimated to the cycled temperature had CTMs of 43.9 and 43.3 °C respectively, and 42.5 and 42.6 °C for those acclimated to 30 °C. All three species appear to have the ability to tolerate the high temperatures throughout the ponds but only Cyprinidon utilize the whole pond during the day. This may help to explain the large populations of Cyprinodon found in these mangrove ponds compared to the other species.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - marine biology & hydrobiology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - ecologie animale, vegetale et microbienne
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Aquatic Science
Catégories WoS
  • 1 - science ; 2 - marine & freshwater biology
Identifiant ISTEX
DB2B95C40D0DDDEE9C2516A38FD18B9A47F107DF
Revue

Hydrobiologia

Année de publication
1993
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.559
Sous-corpus
  • Poissons
Type de publication
Journal
ark:/67375/1BB-03H4JSDM-9
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