Document Detail


Mudskipper periophthalmodon schlosseri can repay oxygen debts in air but not in water
MedLine Citation:
PMID:  10404117     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
We determined aerial and aquatic oxygen uptake rates (&Mdot;o(2)) of Periophthalmodon schlosseri at rest and after exhaustive exercise at 30 degrees C. Resting &Mdot;o(2) in air (3.16 +/- 0.10 [SE] &mgr;mol/g/hr) was significantly higher than that in air saturated water (2.41 +/- 0.06 &mgr;mol/g/hr). When the fish was placed in air after 2 min exhaustive exercise, &Mdot;o(2) immediately increased about 2.5 times, thereby repaying oxygen debt of 5.0 &mgr;mol/g. In contrast, &Mdot;o(2) failed to show any significant elevation from the resting level as long as the fish was confined in water after exercise. However, when the fish was subsequently emerged, &Mdot;o(2) did increase above the resting level, amounting to an excess oxygen uptake of 5.5 &mgr;mol/g. These results demonstrated that the gas transport system of P. schlosseri is better adapted to air breathing and the mode of adaptation limited the capability for water breathing. J. Exp. Zool. 284:265-270, 1999. Copyright 1999 Wiley-Liss, Inc.
Authors:
Takeda; Ishimatsu; Oikawa; Kanda; Hishida; Khoo
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Publication Detail:
Type:  JOURNAL ARTICLE    
Journal Detail:
Title:  The Journal of experimental zoology     Volume:  284     ISSN:  0022-104X     ISO Abbreviation:  J. Exp. Zool.     Publication Date:  1999 Aug 
Date Detail:
Created Date:  1999-07-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375365     Medline TA:  J Exp Zool     Country:  -    
Other Details:
Languages:  Eng     Pagination:  265-70     Citation Subset:  -    
Affiliation:
Department of Fisheries, Faculty of Agriculture, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan.
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