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First published online September 9, 2003

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Lactate sequestration by osteoderms of the broad-nose caiman, Caiman latirostris, following capture and forced submergence

Donald C. Jackson^1,*, Denis V. Andrade² and Augusto S. Abe²

¹ Department of Molecular Pharmacology, Physiology, and Biotechnology, Brown University, Providence, RI 02912, USA
² Departamento de Zoologia, Centro de Aqüicultura, UNESP, Caixa Postal 199, 13506-970 Rio Claro, SP, Brazil

View larger version (12K): [in a new window]   Fig. 1. Lactate concentration changes in plasma and dermal bone in the caiman. Samples were collected 1 day after surgery (-24 h) and then on the following day associated with a 0.5 h submergence (D) and 2 h recovery (R). Bone samples were taken immediately following surgery (not shown on graph), at -24 h and after 2 h recovery.

View larger version (10K): [in a new window]   Fig. 2. Equilibration of individual osteoderms in a salt solution containing 29 meq. l-1 lactate (shown by broken line). Values at each time point are means ± S.E.M. for 4-5 samples.