Après avoir passé plus d'une heure à parcourir les différentes publications
scientifiques concernant le betta splendens, (d'ailleurs j'ai été supris par le nombre de références) et il y a vraiment des études sur tout et n'importe quoi
, comme l'effet du THC sur le comportement du combattant, j'ai trouvé des trucs intéressants.
Je suis tombé sur un article de 2016 publié dans la revue Physiology & Behavior (Official journal of the International Behavioral Neuroscience Society)
Article intitulé : Individual boldness traits influenced by temperature in male Siamese fighting fish : https://www.sciencedirect.com/science/a ... 841630628X
Temperature has profound effects on physiology of ectothermic animals. However, the effects on temperature variation on behavioral traits are poorly studied in contrast to physiological endpoints. This may be important as even small differences in temperatures have large effects on physiological rates including overall metabolism, and behavior is known to be linked to metabolism at least in part. The primary aim of this study was to determine the effects of ambient temperature on boldness responses of a species of fish commonly used in behavioral experiments, the Siamese fighting fish (Betta splendens). At 26°C, subjects were first examined for baseline behaviors over three days, using three different (but complementary) 'open field' type assays tested in a fixed order. Those same fish were next exposed to either the same temperature (26°C) or a higher temperature (30°C) for 10days, and then the same behavioral assays were repeated. Those individuals exposed to increased temperatures reduced their latency to leave the release area (area I), spent more time in area III (farthest from release area), and were more active overall; together we infer these behaviors to reflect an increase in general 'boldness' with increased temperature. Our results add to a limited number of studies of temperature effects on behavioral tendencies in ectotherms that are evident even after some considerable acclimation. From a methodological perspective, our results indicate careful temperature control is needed when studying behavior in this and other species of fish
Malheureusement il faut payer y pour avoir accès, s'il y a un étudiant, chercheur, ou enseignant, ou qui pour x raison a accès à ces publications ce serait bien de nous en faire profiter. Il y a probablement plein de choses intéressantes dedans.
Autre papier :
The Importance of Temperature, Individual Size and Habitat Arrangement on the Bubble Nest Construction of Siamese Fighting Fish
http://web.firat.edu.tr/iJST/3-1/8_harl ... C3%BC..pdf
According to Axelrod [33] and Scheurmann [22] normal temperature range of B. splendens is between 20 and 30 oC. Reyes-Bustamante and
Ortega-Salas [26] also stated that temperature should be 25-28 oC for the maturation and
reproduction of B. splendens in aquarium habitats. In a study, Jaroensutasinee and Jaroensutasinee [23] observed that optimal water
temperature is 30 oC in the ovarian egg development and production of B. splendens. The present study revealed that although B.
splendens is able to construct bubble nest in a wide range of temperature (25-29), the best temperature is 28 oC.
En dessous de 20°C on sort de la plage "normale" . J'aurais bien aimé consulter l’intégralité des sources utilisés (
Axelrod, H.R. (1987). Breeding Aquarium Fishes.
T.F.H. Publications, U.S.A., 125p et
Scheurman, I. (1989). Aquarium Fish Breeding. Educational Series, Inc., England, 139p
Et encore c'est vraiment à prendre avec des pincettes car les sources sont à mon avis discutables, notamment en ce qui concerne celle de Scheurman, car extraite de publication non scientifique et non spécifique. et pas beaucoup plus confiance en celle de Axelrod. mais je vais essayer de me procurer le bouquin en ebook pour voir.
Une étude chinoise :
Embryonic development and temperature effects in fighting fish Betta splendens
Embryonic development of fighting fish Betta splenden and effects of water temperature on embryonic development were studied by observation of incubation period,hatching rate and malformation rate at water temperature of 20,23,26,29 and 32 ℃.Results showed that the fertilized eggs were found to develop at a water temperature of 20-32 ℃,with the optimum of 26-29
Affaire à suivre. Pour moment j'ai pas plus de temps à y consacrer. Mais ça fait une base de réflexion intéressante. Si quelqu'un a mieux à proposer.
Autre chose que j'ai noté, ça ne prouve rien certes, mais la plupart des publications sur le Betta splendens (qui bien entendu ne portent pas sur la température) utilisent toujours quelque chose autour de 25°C, ça vaut ce que ça vaut mais je pense pas que ce soit choisit au hasard.
comme les ayatollahs du filtre finalement. 
