Circannual cycles of blood plasma freezing point and Na + and Cl − concentrations in Newfoundland winter flounder ( Pseudopleuronectes americanus ): correlation with water temperature and photoperiod
A 4-year field program was conducted on the winter flounder to correlate changes in plasma Na + , Cl − , and freezing-point depression with sea-floor water and sediment temperatures, day length, salinity, depth of capture, and observations on burrowing in sediments.Plasma Na + , Cl − , and freezing-...
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Canadian Science Publishing
1977
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Online Access: | http://dx.doi.org/10.1139/z77-103 http://www.nrcresearchpress.com/doi/pdf/10.1139/z77-103 |
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crcansciencepubl:10.1139/z77-103 2023-12-17T10:44:57+01:00 Circannual cycles of blood plasma freezing point and Na + and Cl − concentrations in Newfoundland winter flounder ( Pseudopleuronectes americanus ): correlation with water temperature and photoperiod Fletcher, G. L. 1977 http://dx.doi.org/10.1139/z77-103 http://www.nrcresearchpress.com/doi/pdf/10.1139/z77-103 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 55, issue 5, page 789-795 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1977 crcansciencepubl https://doi.org/10.1139/z77-103 2023-11-19T13:39:17Z A 4-year field program was conducted on the winter flounder to correlate changes in plasma Na + , Cl − , and freezing-point depression with sea-floor water and sediment temperatures, day length, salinity, depth of capture, and observations on burrowing in sediments.Plasma Na + , Cl − , and freezing-point depression showed annual cycles with maxima in winter (January–April) (temperature −1.1 to −1.4 °C) and minima in summer (July–October) (10–14 °C). The change in freezing-point depression from summer to winter was about 0.65 °C, 20% of this was attributable to Na + and Cl − and the remaining 80% to the presence of an 'antifreeze.' The data suggest that plasma 'antifreeze' appeared in November (4–6 °C) and disappeared during May (−1.0 to 3 °C). During the winter the flounder were found only in the deeper areas of the sampling site and were usually buried up to 12–15 cm in the sediments which were warmer (0.1 to 0.4 °C) than the seawater.The plasma Na + , Cl − , and freezing-point depression of winter flounder held in the laboratory for 7 days were always significantly lower than the field-sampled fish. The differences between these two groups was greatest during the summer, suggesting that the effects of 'stress' during capture differ seasonaly. Article in Journal/Newspaper Newfoundland Canadian Science Publishing (via Crossref) Canadian Journal of Zoology 55 5 789 795 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Fletcher, G. L. Circannual cycles of blood plasma freezing point and Na + and Cl − concentrations in Newfoundland winter flounder ( Pseudopleuronectes americanus ): correlation with water temperature and photoperiod |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
A 4-year field program was conducted on the winter flounder to correlate changes in plasma Na + , Cl − , and freezing-point depression with sea-floor water and sediment temperatures, day length, salinity, depth of capture, and observations on burrowing in sediments.Plasma Na + , Cl − , and freezing-point depression showed annual cycles with maxima in winter (January–April) (temperature −1.1 to −1.4 °C) and minima in summer (July–October) (10–14 °C). The change in freezing-point depression from summer to winter was about 0.65 °C, 20% of this was attributable to Na + and Cl − and the remaining 80% to the presence of an 'antifreeze.' The data suggest that plasma 'antifreeze' appeared in November (4–6 °C) and disappeared during May (−1.0 to 3 °C). During the winter the flounder were found only in the deeper areas of the sampling site and were usually buried up to 12–15 cm in the sediments which were warmer (0.1 to 0.4 °C) than the seawater.The plasma Na + , Cl − , and freezing-point depression of winter flounder held in the laboratory for 7 days were always significantly lower than the field-sampled fish. The differences between these two groups was greatest during the summer, suggesting that the effects of 'stress' during capture differ seasonaly. |
format |
Article in Journal/Newspaper |
author |
Fletcher, G. L. |
author_facet |
Fletcher, G. L. |
author_sort |
Fletcher, G. L. |
title |
Circannual cycles of blood plasma freezing point and Na + and Cl − concentrations in Newfoundland winter flounder ( Pseudopleuronectes americanus ): correlation with water temperature and photoperiod |
title_short |
Circannual cycles of blood plasma freezing point and Na + and Cl − concentrations in Newfoundland winter flounder ( Pseudopleuronectes americanus ): correlation with water temperature and photoperiod |
title_full |
Circannual cycles of blood plasma freezing point and Na + and Cl − concentrations in Newfoundland winter flounder ( Pseudopleuronectes americanus ): correlation with water temperature and photoperiod |
title_fullStr |
Circannual cycles of blood plasma freezing point and Na + and Cl − concentrations in Newfoundland winter flounder ( Pseudopleuronectes americanus ): correlation with water temperature and photoperiod |
title_full_unstemmed |
Circannual cycles of blood plasma freezing point and Na + and Cl − concentrations in Newfoundland winter flounder ( Pseudopleuronectes americanus ): correlation with water temperature and photoperiod |
title_sort |
circannual cycles of blood plasma freezing point and na + and cl − concentrations in newfoundland winter flounder ( pseudopleuronectes americanus ): correlation with water temperature and photoperiod |
publisher |
Canadian Science Publishing |
publishDate |
1977 |
url |
http://dx.doi.org/10.1139/z77-103 http://www.nrcresearchpress.com/doi/pdf/10.1139/z77-103 |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
Canadian Journal of Zoology volume 55, issue 5, page 789-795 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z77-103 |
container_title |
Canadian Journal of Zoology |
container_volume |
55 |
container_issue |
5 |
container_start_page |
789 |
op_container_end_page |
795 |
_version_ |
1785564594642616320 |