Results 11 to 20 of about 1,468 (177)
Visual ecology of the Australian lungfish (
BMC Ecology, 2008 Background The transition from water to land was a key event in the evolution of vertebrates that occurred over a period of 15–20 million years towards the end of the Devonian. Tetrapods, including all land-living vertebrates, are thought to have evolved
Vorobyev Misha +4 more
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Visual pigments in a living fossil, the Australian lungfish
BMC Evolutionary Biology, 2007 Background One of the greatest challenges facing the early land vertebrates was the need to effectively interpret a terrestrial environment. Interpretation was based on ocular adaptations evolved for an aquatic environment millions of years earlier.
Davies Wayne L +3 more
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Age structure of the Australian lungfish (Neoceratodus forsteri).
PLoS ONE, 2019 The Australian lungfish has been studied for more than a century without any knowledge of the longevity of the species. Traditional methods for ageing fish, such as analysis of otolith (ear stone) rings is complicated in that lungfish otoliths differ ...
Stewart J Fallon +10 more
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Respiratory control in the lungfish, Neoceratodus forsteri (krefft) [PDF]
Comparative Biochemistry and Physiology, 1967 1. Respiratory control has been studied in the lungfish, Neoceratodus forsteri by measuring ventilation (Ve), oxygen uptake (VO2), per cent O2 extraction from water, breathing rates of branchial and aerial respiration and changes in blood gas and pulmonary gas composition during exposure to hypoxia and hypercarbia. 2.
Johansen, K, Lenfant, C, Grigg, GC
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Characterization of the hemoglobins of the Australian lungfish Neoceratodus forsteri (Krefft)
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2009 We examined for the first time the hemoglobin components of the blood of the Australian lungfish, Neoceratodus forsteri and their functional responses to pH and the allosteric modulators adenosine triphosphate (ATP), guanosine triphosphate (GTP), 2,3-bisphosphoglyceric acid (BPG) and inositol hexaphosphate (IHP) at 25 degrees C.
Rasmussen, Jonas R. +4 more
core +5 more sources
Prismatic dentine in the Australian lungfish, Neoceratodus forsteri (Osteichthyes: Dipnoi)
Tissue and Cell, 2006 The Australian lungfish, Neoceratodus forsteri, has a dentition consisting of enamel, mantle dentine and bone, enclosing circumdenteonal, core and interdenteonal dentines. Branching processes from cells that produce interdenteonal dentine leave the cell surface at different angles, with collagen fibrils aligned parallel to the long axis of each process.
Kemp, Anne, Barry, John C.
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Deiodinase type III in the Australian lungfish, Neoceratodus forsteri
General and Comparative Endocrinology, 2004 This work presents characterisation of deiodinase type III (D3) mRNA as cDNA and the tissue distribution of D3 mRNA in the Australian lungfish, Neoceratodus forsteri. We have identified the full length of a approximately 1.4 kb D3 mRNA in the liver, which has a single in-frame UGA codon and a selenocysteine insertion sequence (SECIS) form 2 in the 3 ...
Margareta, Sutija +2 more
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Notas sobre el esqueleto de los Peces Neoceratodus Fosteri y Protopterus Annectens Notas sobre el esqueleto de los Peces Neoceratodus Fosteri y Protopterus Annectens [PDF]
Caldasia, 1977 We present here a new description and drawings of the axial skeleton of Neoceratodus fosteri and Protopterus annectens. We discuss the differences between modern and fossil forms of lung fishes in reference to the formation of vertebrae in fossil forms ...
Galvis-Vergara German
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In VitroBiosynthesis of Androgens in the Australian Lungfish,Neoceratodus forsteri
General and Comparative Endocrinology, 1996 The serum concentration of testosterone was estimated from a population of wild lungfish over 6-7 years of sampling. Male lungfish were found to have high circulating levels of testosterone (approximately 50 ng/ml) which varied seasonally and could be correlated with spermatogenesis as judged by testis histology. Incubation of testis tissue slices with
J M, Joss, A, Edwards, D E, Kime
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Spawning activity of the Australian lungfish Neoceratodus forsteri in an impoundment
Journal of Fish Biology, 2014 This study assessed the spawning activity of the threatened Australian lungfish Neoceratodus forsteri by measuring egg densities within the artificial habitat of a large impoundment (Lake Wivenhoe, Australia). Eggs were sampled (August to November 2009) from multiple locations across the impoundment, but occurred at highest densities in water shallower
Roberts, D. T. +4 more
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