Influence of Varying pH and some Inorganic Cations on the Perivitelline Potential of Eggs of Atlantic Salmon ( Salmo salar )
A potential difference is maintained between the perivitelline fluid of the Atlantic salmon (Salmo salar) egg and the incubation medium. The magnitude of this potential difference depends on the ionic composition of the incubation medium; it exhibits a maximal negativity in deionized water, then dep...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Canadian Science Publishing
1984
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Online Access: | http://dx.doi.org/10.1139/f84-124 http://www.nrcresearchpress.com/doi/pdf/10.1139/f84-124 |
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crcansciencepubl:10.1139/f84-124 2023-12-17T10:27:17+01:00 Influence of Varying pH and some Inorganic Cations on the Perivitelline Potential of Eggs of Atlantic Salmon ( Salmo salar ) Peterson, R. H. 1984 http://dx.doi.org/10.1139/f84-124 http://www.nrcresearchpress.com/doi/pdf/10.1139/f84-124 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 41, issue 7, page 1066-1069 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1984 crcansciencepubl https://doi.org/10.1139/f84-124 2023-11-19T13:38:23Z A potential difference is maintained between the perivitelline fluid of the Atlantic salmon (Salmo salar) egg and the incubation medium. The magnitude of this potential difference depends on the ionic composition of the incubation medium; it exhibits a maximal negativity in deionized water, then depolarizes, and finally reverses in sign as the ionic content of the incubation medium is raised. The potential difference obeys the Nernst relationship over a limited concentration range of H + , Ca 2+ , and Mg 2+ (10 −5 to 10 −3 M). The maximal change in potential difference with change in Na + and K + concentrations is less than that predicted by the Nernst equation. The potential difference permits calculation of the degree of concentration of cations in the perivitelline fluid over that of the ambient medium. Depolarizing the perivitelline potential by lowering the ambient pH will result in losses of other cations from the perivitelline fluid. Article in Journal/Newspaper Atlantic salmon Salmo salar Canadian Science Publishing (via Crossref) Canadian Journal of Fisheries and Aquatic Sciences 41 7 1066 1069 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Peterson, R. H. Influence of Varying pH and some Inorganic Cations on the Perivitelline Potential of Eggs of Atlantic Salmon ( Salmo salar ) |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
A potential difference is maintained between the perivitelline fluid of the Atlantic salmon (Salmo salar) egg and the incubation medium. The magnitude of this potential difference depends on the ionic composition of the incubation medium; it exhibits a maximal negativity in deionized water, then depolarizes, and finally reverses in sign as the ionic content of the incubation medium is raised. The potential difference obeys the Nernst relationship over a limited concentration range of H + , Ca 2+ , and Mg 2+ (10 −5 to 10 −3 M). The maximal change in potential difference with change in Na + and K + concentrations is less than that predicted by the Nernst equation. The potential difference permits calculation of the degree of concentration of cations in the perivitelline fluid over that of the ambient medium. Depolarizing the perivitelline potential by lowering the ambient pH will result in losses of other cations from the perivitelline fluid. |
format |
Article in Journal/Newspaper |
author |
Peterson, R. H. |
author_facet |
Peterson, R. H. |
author_sort |
Peterson, R. H. |
title |
Influence of Varying pH and some Inorganic Cations on the Perivitelline Potential of Eggs of Atlantic Salmon ( Salmo salar ) |
title_short |
Influence of Varying pH and some Inorganic Cations on the Perivitelline Potential of Eggs of Atlantic Salmon ( Salmo salar ) |
title_full |
Influence of Varying pH and some Inorganic Cations on the Perivitelline Potential of Eggs of Atlantic Salmon ( Salmo salar ) |
title_fullStr |
Influence of Varying pH and some Inorganic Cations on the Perivitelline Potential of Eggs of Atlantic Salmon ( Salmo salar ) |
title_full_unstemmed |
Influence of Varying pH and some Inorganic Cations on the Perivitelline Potential of Eggs of Atlantic Salmon ( Salmo salar ) |
title_sort |
influence of varying ph and some inorganic cations on the perivitelline potential of eggs of atlantic salmon ( salmo salar ) |
publisher |
Canadian Science Publishing |
publishDate |
1984 |
url |
http://dx.doi.org/10.1139/f84-124 http://www.nrcresearchpress.com/doi/pdf/10.1139/f84-124 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 41, issue 7, page 1066-1069 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f84-124 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
41 |
container_issue |
7 |
container_start_page |
1066 |
op_container_end_page |
1069 |
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1785579093638512640 |