Renal glomerular evolution in Antarctic notothenioid fishes
Light and electron microscopy were used to document the degree of glomerular development in 10 species of Antarctic notothenioid fishes. When combined with results of previous studies, data revealed that 16 of 20 species inhabiting subzero sea water were aglomerular. One subantarctic and two tempera...
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crwiley:10.1111/j.1095-8649.1986.tb04981.x 2024-09-15T17:44:03+00:00 Renal glomerular evolution in Antarctic notothenioid fishes Eastman, J. T. Devries, A. L. 1986 http://dx.doi.org/10.1111/j.1095-8649.1986.tb04981.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1986.tb04981.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1986.tb04981.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 29, issue 6, page 649-662 ISSN 0022-1112 1095-8649 journal-article 1986 crwiley https://doi.org/10.1111/j.1095-8649.1986.tb04981.x 2024-07-25T04:20:32Z Light and electron microscopy were used to document the degree of glomerular development in 10 species of Antarctic notothenioid fishes. When combined with results of previous studies, data revealed that 16 of 20 species inhabiting subzero sea water were aglomerular. One subantarctic and two temperate species were pauciglomerular, and an additional temperate species had a moderate number of glomeruli. Renal corpuscles were variable in number and diameter among the pauciglomerular species, and most had few patent glomerular capillaries. Radiolabelled markers indicated that the glomerular filtration rate was low in the pauciglomerular Notothenia angustata , ranging from 0.005 to 0.124 ml h −1 kg −1 in eight specimens. Arterial perfusion of Microfil demonstrated that arteries supplying aglomerular and pauciglomerular kidneys were confined largely to the periphery of the organ, and glomerular capillaries were absent or few in number. As ancestral notothenioids probably had glomerular kidneys, data from 20–25% of the fauna suggest that there has been an evolutionary loss of glomeruli in many species. The pattern of glomerular reduction is consistent with the hypothesis that the selective advantage of aglomerularism is in the urinary conservation of small molecular weight antifreeze glycopeptide compounds that are vital to survival in sub‐zero Antarctic waters. Article in Journal/Newspaper Antarc* Antarctic Wiley Online Library Journal of Fish Biology 29 6 649 662 |
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English |
description |
Light and electron microscopy were used to document the degree of glomerular development in 10 species of Antarctic notothenioid fishes. When combined with results of previous studies, data revealed that 16 of 20 species inhabiting subzero sea water were aglomerular. One subantarctic and two temperate species were pauciglomerular, and an additional temperate species had a moderate number of glomeruli. Renal corpuscles were variable in number and diameter among the pauciglomerular species, and most had few patent glomerular capillaries. Radiolabelled markers indicated that the glomerular filtration rate was low in the pauciglomerular Notothenia angustata , ranging from 0.005 to 0.124 ml h −1 kg −1 in eight specimens. Arterial perfusion of Microfil demonstrated that arteries supplying aglomerular and pauciglomerular kidneys were confined largely to the periphery of the organ, and glomerular capillaries were absent or few in number. As ancestral notothenioids probably had glomerular kidneys, data from 20–25% of the fauna suggest that there has been an evolutionary loss of glomeruli in many species. The pattern of glomerular reduction is consistent with the hypothesis that the selective advantage of aglomerularism is in the urinary conservation of small molecular weight antifreeze glycopeptide compounds that are vital to survival in sub‐zero Antarctic waters. |
format |
Article in Journal/Newspaper |
author |
Eastman, J. T. Devries, A. L. |
spellingShingle |
Eastman, J. T. Devries, A. L. Renal glomerular evolution in Antarctic notothenioid fishes |
author_facet |
Eastman, J. T. Devries, A. L. |
author_sort |
Eastman, J. T. |
title |
Renal glomerular evolution in Antarctic notothenioid fishes |
title_short |
Renal glomerular evolution in Antarctic notothenioid fishes |
title_full |
Renal glomerular evolution in Antarctic notothenioid fishes |
title_fullStr |
Renal glomerular evolution in Antarctic notothenioid fishes |
title_full_unstemmed |
Renal glomerular evolution in Antarctic notothenioid fishes |
title_sort |
renal glomerular evolution in antarctic notothenioid fishes |
publisher |
Wiley |
publishDate |
1986 |
url |
http://dx.doi.org/10.1111/j.1095-8649.1986.tb04981.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1986.tb04981.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1986.tb04981.x |
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Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Journal of Fish Biology volume 29, issue 6, page 649-662 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1095-8649.1986.tb04981.x |
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Journal of Fish Biology |
container_volume |
29 |
container_issue |
6 |
container_start_page |
649 |
op_container_end_page |
662 |
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1810491345550180352 |