Respiration as a function of oxygen concentration in intertidal barnacles |
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Authors: | D G V Prasada Rao P N Ganapati |
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Institution: | (1) Department of Zoology, Andhra University, Waltair, India |
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Abstract: | Respiration as a function of oxygen concentration was studied in two species of intertidal barnacles: Balanus amphitrite amphitrite
1 (Darwin) and B. tintinnabulum tintinnabulum (L.). A critical oxygen tension was observed in both species below which the respiratory regulation broke down. In B. amphitrite amphitrite the critical oxygen tension was 2.5 ml O2/l, and in B. tintinnabulum tintinnabulum 3.5 ml O2/l. Species differences and habitat relations were observed in both species in their respiratory adaptation to oxygen concentration. B. amphitrite amphitrite which inhabits oxygen-deficient areas was able to regulate to much lower concentrations than B. tintinnabulum tintinnabulum which inhabits oxygen-rich open intertidal regions. |
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