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| Brandão,Manuela L.; Colognesi,Gisele; Bolognesi,Marcela C.; Costa-Ferreira,Roselene S.; Carvalho,Thaís B.; Gonçalves-de-Freitas,Eliane. |
| ABSTRACT Changes in water temperature may affect the aggressive behavior of aquatic organisms, such as fish, either by changing some physiological mechanisms or by increasing the probability of encounters between individuals as a result of variation in their swimming activity. In our study, we evaluated the influence of increasing and decreasing temperature on the aggressive behavior of the Neotropical cichlid fish Cichlasoma paranaense. Firstly, we tested the critical thermal maximum (CTMax) tolerated by this species. Then, we tested the effect of decreasing or increasing the water temperature in 6o C (starting at 27° C) on the aggressive interactions of fish under isolation or housed in groups. We found a CTMax value of 39° C for C. paranaense. We also... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agonistic behavior; Critical thermal maximum; Social hierarchy; Social isolation; Thermal environmental changes. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000100212 |
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