Journal ArticleDOI
Changes in lactate content in the gills of the mudskippers Periophthalmus chrysospilos and Boleophthalmus boddaerti in response to environmental hypoxia
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The gills of Periophthalms chrysospilos exhibited significantly greater pyruvate kinase and lactate dehydrogenase activities than those of Boleophthalmus boddaerti under the control and hypoxic conditions.Abstract:
The gills of Periophthalmus chrysospilos exhibited significantly greater pyruvate kinase and lactate dehydrogenase activities than those of Boleophthalmus boddaerti (P <001) Under the control normoxic condition, the branchial lactate content of the former mudskipper was also significantly greater (P < 001) than that of the latter After hypoxic exposure, lactate and alanine accumulated in the gills of P chrysospilos but not B boddaerti Succinate and propionate were not detected in the gills of these two mudskippers under the control and hypoxic conditionsread more
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Book ChapterDOI
Respiration in Water and Air
TL;DR: The behavior and physiology of the transition from water to air in air-breathing intertidal fishes is described, and certain morphological and behavioral characteristics with the more actively amphibious mudskippers and rockskippers are described.
Journal ArticleDOI
Multivariate characterisation of the habitats of seven species of Malayan mudskippers (Gobiidae: Oxudercinae)
Gianluca Polgar,Giuseppe Crosa +1 more
TL;DR: With the more terrestrial guild, a significant negative co-occurrence suggested direct interspecific competition, and differentiation of trophic niches may also play a role in habitat selection by the herbivorous Boleophthalmus spp.
Journal ArticleDOI
Environmental factors influencing the zonation and activity patterns of a population of Periophthalmus sobrinus Eggert in a Kenyan mangrove
TL;DR: Activity patterns and zonation of the mudskippers were directly influenced by the synodic and tidal cycles and depended more on environmental factors such as air temperature and relative humidity than on the diel light cycle.
Journal ArticleDOI
Differentiation and adaptive radiation of amphibious gobies (Gobiidae: Oxudercinae) in semi-terrestrial habitats
TL;DR: It is proposed that these findings provide insight into convergent adaptations for the vertebrate eco-evolutionary transition from sea to land.
Book ChapterDOI
Physiological Adaptations of Fishes to Tropical Intertidal Environments
TL;DR: This chapter focuses on the tropical intertidal zone and describes the habitat types, the nature of environmental changes that fishes are likely to experience therein, and the major groups of resident fish.
References
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Journal ArticleDOI
A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding
TL;DR: This assay is very reproducible and rapid with the dye binding process virtually complete in approximately 2 min with good color stability for 1 hr with little or no interference from cations such as sodium or potassium nor from carbohydrates such as sucrose.
Journal ArticleDOI
Lactic dehydrogenase activity in blood.
Felix Wróblewski,John S. Ladue +1 more
TL;DR: Lactic dehydrogenase like serum glutamic oxaloacetic transaminase rises in a characteristic fashion following myocardial infarction, and is associated with a rise in serum lactic dehydrogensase activity.
Journal ArticleDOI
Ethanol: novel end product of vertebrate anaerobic metabolism
TL;DR: The goldfish has evolved a novel pathway of vertebrate anaerobic metabolism in which glucose carbon is metabolized to ethanol and excreted and the fish does not accumulate lactate to the extent expected.
Book ChapterDOI
l-Alanine Determination with Alanine Dehydrogenase
TL;DR: The chapter discusses a specific enzymatic method for l -alanine determination with glutamate-pyruvate transaminase (GPT) and lactate dehydrogenase (LDH) and discusses the specificity, accuracy, and precision of the method.
Journal ArticleDOI
Pyruvate kinase and phosphoenolpyruvate carboxykinase activities of Ascaris muscle, Hymenolepis diminuta and Schistosoma mansoni.
Ernest Bueding,Howard J. Saz +1 more
TL;DR: Marked differences in pyruvate kinase activities were found to occur in three parasitic helminths; in Ascaris muscle the avtivity of this enzyme was 100–200 times lower than in Schistosoma mansoni and 10 times higher than in the tapeworm Hymenolepis diminuta.