Endothermy in fishes: a phylogenetic analysis of constraints, predispositions, and selection pressures

@article{Block2004EndothermyIF,
  title={Endothermy in fishes: a phylogenetic analysis of constraints, predispositions, and selection pressures},
  author={Barbara A Block and John R. Finnerty},
  journal={Environmental Biology of Fishes},
  year={2004},
  volume={40},
  pages={283-302}
}
SynopsisEndothermy, the ability to raise body temperature by internal heat production, is unusual in teleost fishes and has only been documented within one suborder, the Scombroidei. Two separate modes of endothermy have evolved in the scombroidei; tunas warm their muscles, brain and viscera using heat exchangers in the circulation to these metabolically active tissues while billfishes and one primitive mackerel have a thermogenic organ situated beneath the brain. Both modes of endothermy… Expand

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