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10.1093/conphys/coaf082 http://scihub22266oqcxt.onion/10.1093/conphys/coaf082 C12695145!12695145 !41384234     free     free     free Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=41384234 &cmd=llinks): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 215       Conserv+Physiol 2025 ; 13 (1 ): coaf082 Nephropedia Template TP {{tp|p=41384234 |t=2025. Longer exposure to warm water increases subsequent thermal tolerance of brook trout in cold water: acclimation timing and physiology |pdf=|usr=}}{{41384234 }} gab.com Text Longer exposure to warm water increases subsequent thermal tolerance of brook trout in cold water: acclimation timing and physiology JO: Conserv Physiol http://www.kidney.de/pget.php?&tw=1&pmid=41384234 #FOAvip Climate change has resulted in increased incidence and variability of warming episodes in cold-water streams that support salmonids. The capacity to acclimate to warm temperatures may allow cold-water fish to persist in spite of changing thermal regimes, but accurately predicting fish performance under fluctuating stream temperatures also requires understanding re-acclimation to cool water, which is less well understood. We tested how thermal acclimation to warm temperatures and re-acclimation to cool water affected thermal tolerance and physiological endpoints in juvenile brook trout (Salvelinus fontinalis). We show that an initial thermal exposure (22°C, ?T?=?7°C) of 3, 7 and 14 days (but not 1 day) improved critical thermal maximum (CT(max)) after a 14-day re-acclimation to cooler temperatures (15°C). Fish growth during the re-acclimation period decreased with increasing duration of initial thermal exposure (22°C). Physiological parameters associated with thermal acclimation (cortisol, glucose, haematocrit and haemoglobin) were lower at 15°C re-acclimation temperature than at the initial thermal treatment (22°C) and in some cases, lower than the 15°C control. Muscle HSP70 protein increased early (1 day) as part of the warm acclimation process and remained elevated at lower levels for up to 14 days. During re-acclimation to 15°C, HSP70 decreased relative to initial measures at 22°C. Fish exposed to the longest thermal treatment (22°C for 14 days) maintained elevated CT(max) after 30 days of re-acclimation to 15°C without observed differences in the measured physiological endpoints but returned to control levels after 42 days at 15°C. This work shows that high-temperature acclimation effects in brook trout are retained for up to 30 days following re-acclimation to cool temperatures, and that isolated warming events may be expected to temporarily enhance thermal tolerance in subsequent thermal challenges. Twit Text FOAVip Longer exposure to warm water increases subsequent thermal tolerance of brook trout in cold water: acclimation timing and physiology ????Conserv Physiol http://www.kidney.de/pget.php?&tw=1&pmid=41384234 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=41384234 #FOAvip English Wikipedia <ref>{{Cite pmid|41384234 }}</ref> Longer exposure to warm water increases subsequent thermal tolerance of brook trout in cold water: acclimation timing and physiology #MMPMID41384234 Regish AM ; O'Donnell MJ ; Letcher BH ; Lambert TD ; Hall DJ ; McCormick SD Conserv Physiol 2025[]; 13 (1 ): coaf082 PMID41384234 show ga Climate change has resulted in increased incidence and variability of warming episodes in cold-water streams that support salmonids. The capacity to acclimate to warm temperatures may allow cold-water fish to persist in spite of changing thermal regimes, but accurately predicting fish performance under fluctuating stream temperatures also requires understanding re-acclimation to cool water, which is less well understood. We tested how thermal acclimation to warm temperatures and re-acclimation to cool water affected thermal tolerance and physiological endpoints in juvenile brook trout (Salvelinus fontinalis). We show that an initial thermal exposure (22°C, ?T?=?7°C) of 3, 7 and 14 days (but not 1 day) improved critical thermal maximum (CT(max)) after a 14-day re-acclimation to cooler temperatures (15°C). Fish growth during the re-acclimation period decreased with increasing duration of initial thermal exposure (22°C). Physiological parameters associated with thermal acclimation (cortisol, glucose, haematocrit and haemoglobin) were lower at 15°C re-acclimation temperature than at the initial thermal treatment (22°C) and in some cases, lower than the 15°C control. Muscle HSP70 protein increased early (1 day) as part of the warm acclimation process and remained elevated at lower levels for up to 14 days. During re-acclimation to 15°C, HSP70 decreased relative to initial measures at 22°C. Fish exposed to the longest thermal treatment (22°C for 14 days) maintained elevated CT(max) after 30 days of re-acclimation to 15°C without observed differences in the measured physiological endpoints but returned to control levels after 42 days at 15°C. This work shows that high-temperature acclimation effects in brook trout are retained for up to 30 days following re-acclimation to cool temperatures, and that isolated warming events may be expected to temporarily enhance thermal tolerance in subsequent thermal challenges. ?Longer exposure to warm water increases subsequent thermal tolerance o(epmc).pdf DeepDyve Pubget Overpricing