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Hematological indicators of stress in longline-captured sharks.
Energetics , Metabolism , and Endothermy in Sharks and Rays
7.1 Energetics ........................................................................................................................................................................211 7.1.1 Size
Plasma catecholamine levels as indicators of the post-release survivorship of juvenile pelagic sharks caught on experimental drift longlines in the Southern California Bight
TLDR
Because these mako sharks survived sufficiently long to be recaptured, their time-of-release catecholamine levels provide a conservative estimate of ∼80% viability on the longline-captured and released population.
Aerobic metabolic rates of swimming juvenile mako sharks, Isurus oxyrinchus
TLDR
The findings suggest that the estimate of SMR for juvenile makos is comparable to that recorded for other similar-sized, ram-ventilating shark species (when corrected for differences in experimental temperature), however, the mako RMR and MMR are apparently among the highest measured for any shark species.
Mammal-like muscles power swimming in a cold-water shark
TLDR
It is shown that the salmon shark, a lamnid inhabiting cold, north Pacific waters, has become so specialized for endothermy that its red, aerobic, locomotor muscles, which power continuous swimming, seem mammal-like, functioning only within a markedly elevated temperature range (20–30 °C).
Water-tunnel studies of heat balance in swimming mako sharks.
TLDR
The findings for mako red muscle are similar to those recorded for tunas and suggest modulation of retial heat-exchange efficiency as the underlying mechanism controlling heat balance, however, the red muscle temperatures measured in swimming makos are cooler than those measured previously in larger decked mako.
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