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Blasco, Felipe R.; Esbaugh, Andrew J.; Killen, Shaun S.; Rantin, Francisco Tadeu; Taylor, Edwin W.; Mckenzie, David. |
We investigated whether fatigue from sustained aerobic swimming provides a sub-lethal endpoint to define tolerance of acute warming in fishes, as an alternative to loss of equilibrium (LOE) during a critical thermal maximum (CTmax) protocol. Two species were studied, Nile tilapia (Oreochromis niloticus) and pacu (Piaractus mesopotamicus). Each fish underwent an incremental swim test to determine gait transition speed (U-GT), where it first engaged the unsteady anaerobic swimming mode that preceded fatigue. After suitable recovery, each fish was exercised at 85% of their own U-GT and warmed 1 degrees C every 30 min, to identify the temperature at which they fatigued, denoted as CTswim. Fish were also submitted to a standard CTmax, warming at the same rate... |
Tipo: Text |
Palavras-chave: CTmax; Oreochromis niloticus; Piaractus mesopotamicus. |
Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00640/75188/75324.pdf |
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