Chemistry of the body fluids of the coelacanth, Latimeria chalumnae

@article{Griffith1980ChemistryOT,
  title={Chemistry of the body fluids of the coelacanth, Latimeria chalumnae},
  author={R. W. Griffith},
  journal={Proceedings of the Royal Society of London. Series B. Biological Sciences},
  year={1980},
  volume={208},
  pages={329 - 347}
}
  • R. W. Griffith
  • Published 1980
  • Chemistry, Medicine
  • Proceedings of the Royal Society of London. Series B. Biological Sciences
The coelacanth, Latimeria chalumnae, possesses a blood chemistry that is nearly identical to that of the elasmobranch fishes and contrasts with that of the bony fishes and tetrapods. Especially notable is the retention of high concentrations of urea (377 mM) and of trimethylamine oxide (122 mM), which aid in raising the blood osmolarity (942 mosm/I) to close to that of the sea water environment. These features also characterize other coelacanth body fluids, such as the notochordal fluid… Expand
Guppies, toadfish, lungfish, coelacanths and frogs: a scenario for the evolution of urea retention in fishes
TLDR
The question of how (and why) the ureosmotic strategy, characteristic of Latimeria chalumnae and the chondrichthians evolved, and several examples of lower vertebrates in which urea plays a physiological role are considered are considered to see whether they might provide insight into the origin of ureOSmotic regulation. Expand
The biology of Latimeria chalumnae and evolution of coelacanths
TLDR
The coelacanth's reproductive style: lecithotrophy and orally feeding embryos in cichlid fishes and in Latimeria chalumnae is Probable and Viviparity and the maternal-embryonic relationship in the coelacanths are probable. Expand
Ultrastructural Study of the Kidney in the Coelacanth Latimeria chalumnae (Rhipidistia: Coelacanthini)
TLDR
The ultrastructure of the L chalumnae nephrons correlates well with their osmoregulatory function and resembles that of freshwater rainbow trout. Expand
Identification of a new mineralized tissue in the notochord of reared Siberian sturgeon (Acipenser baerii)
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The putative role of this structure is discussed as either a store of minerals available for the phosphocalcic metabolism, or a mechanical support in a species with a poorly mineralized axial skeleton, as well as a pathological feature putatively related to rearing conditions. Expand
COMPOSITION OF THE BLOOD SERUM OF DEEP-SEA FISHES
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Stress and morbidity raise osmolarity and chloride in marine teleosts and may account for high values in midwater and benthic fishes, which were sampled after consi... Expand
Paleozoic lungfishes—a review
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It is shown that many features taken to be diagnostic of the Dipnoi by some workers were not present in its early members; failure to recognize this fact has led to erroneous hypotheses about dipnoan‐amphibian relations. Expand
Non-respiratory blood vessels in Latimeria gill filaments
TLDR
Evidence derived from this study of the secondary circulation clearly supports the view that the Dipnoi rather than Latimeria represent the living fishes most closely related to the tetrapods. Expand
Latimeria chalumnae and its pedigree
  • P. Forey
  • Environmental Biology of Fishes
  • 2004
SynopsisLatimeria is the product of a long coelacanth lineage, usually viewed as having changed very little. In this paper a classification of better known coelacanth genera is proposed based on aExpand
Latimeria chalumnae and its pedigree
TLDR
It is concluded that throughout coelacanth history there have been changes in the structure of the vertebral column involving an overall increase in the number of vertebral elements, and a consequent crowding of these elements within the abdominal region. Expand
Review Lecture: Some advances in coelacanth biology
  • N. A. Locket
  • Biology
  • Proceedings of the Royal Society of London. Series B. Biological Sciences
  • 1980
Participants in the British-French-American Expedition to the Comoro Islands in1972 were able to observe a living coelacanth and to obtain fresh tissue from two specimens, which were processed in theExpand
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References

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Composition of fluid from the notochordal canal of the coelacanth, Latimeria chalumnae.
TLDR
Significantly or suggestively lower levels of sodium, magnesium, calcium, bicarbonate, sulfate, total carbohydrates, glucose, lactate, cholesterol, bound phosphate and total proteins were found in notochordal fluid than in serum, whereas potassium, chloride, urea, trimethylamine oxide, and total free amino acids were higher and inorganic phosphorus essentially identical. Expand
OSMOTIC CONSTITUENTS OF THE COELACANTH LATIMERIA CHALUMNAE SMITH
TLDR
Samples of blood, bile, muscle and liver from a frozen specimen of the coelacanth Latimeria chalumnae were analyzed for ions and nonprotein nitrogenous compounds and the effect of prolonged freezing on the electrolyte distribution of the perch Perca fluviatillis was made. Expand
Isolation of coelacanth (Latimeria chalumnae) myoglobin
TLDR
It is of great interest at the point of view of evolution to compare coelacanth proteins with those of lungfishes and amphibians. Expand
Osmotic constitutents of the blood plasma and parietal muscle of Squalus acanthias L.
TLDR
An attempt is made to outline the sea water-plasma and plasma muscle steady states by comprehensive analyses of muscle and plasma of specimens of the spiny dogfish Squalus acanthias. Expand
Serum Osmolality in the Coelacanth, Latimeria chalumnae: Urea Retention and Ion Regulation
TLDR
Samples of blood (hemolyzed) were obtained from the renal vein, the hepatic portal vein, and the heart of a freshly thawed specimen of Latimeria chalumnae and the magnesium value for the aqueous humor was used to correct the abnormally high concentrations in the hemolyzed serum. Expand
Serum composition of the coelacanth, Latimeria chalumnae Smith.
TLDR
Blood serum of the coelacanth, Latimeria chalumnae, lacks a protein component with a mobility approaching that of human serum albumin, and evolutionary implications of the similarity ofLatimeria serum chemistry to that of other marine fishes are discussed. Expand
Composition of bladder urine of the coelacanth, Latimeria chalumnae
Major inorganic electrolytes and organic solutes were measured in urine obtained from the bladder of a live specimen of the coelacanth, Latimeria chalumnae, and the results were compared with data onExpand
Muscle Proteins of the Coelacanth Latimeria Chalumnae Smith
Although the anatomy of the coelacanth muscles has been examined very thoroughly, their protein composition has, until recently, not been investigated. Thanks, however, to the 1972Expand
Bile salts of the lungfishes Lepidosiren, Neoceratodus and Protopterus and those of the coelacanth Latimeria chalumnae Smith.
TLDR
Comparison of the alcohols suggest that Latimeria stands biochemically outside the animal group which includes the Dipnoi, and all four primitive osteiychtheans have some amphibian affinities. Expand
THE ABSORPTION AND EXCRETION OF WATER AND SALTS BY MARINE TELEOSTS
It is a peculiar and interesting fact that marine teleosts excrete urine which is isotonic or hypotonic with respect to the blood, and therefore of considerably lower osmotic pressure than sea waterExpand
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