The Size of Diatoms IV. The cell diameters in Rhizosolenia styliformis var. oceanica
Consideration has been given to the cell diameters of twenty-four samples of Rhizosolenia styliformis var. oceanica from a wide range of latitude together with material from eleven other collections already briefly recorded in Part II of this paper. It was found that the cells of the smallest diamet...
Published in: | Journal of the Marine Biological Association of the United Kingdom |
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Cambridge University Press (CUP)
1966
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Online Access: | http://dx.doi.org/10.1017/s0025315400033336 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315400033336 |
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crcambridgeupr:10.1017/s0025315400033336 2024-03-03T08:47:09+00:00 The Size of Diatoms IV. The cell diameters in Rhizosolenia styliformis var. oceanica Wimpenny, R. S. 1966 http://dx.doi.org/10.1017/s0025315400033336 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315400033336 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Journal of the Marine Biological Association of the United Kingdom volume 46, issue 3, page 541-546 ISSN 0025-3154 1469-7769 Aquatic Science journal-article 1966 crcambridgeupr https://doi.org/10.1017/s0025315400033336 2024-02-08T08:45:38Z Consideration has been given to the cell diameters of twenty-four samples of Rhizosolenia styliformis var. oceanica from a wide range of latitude together with material from eleven other collections already briefly recorded in Part II of this paper. It was found that the cells of the smallest diameter occurred in high latitudesand that the average values were greater at lower latitudes. More auxospore generations were present simultaneously in higher latitudes. An interpretation of these observations is that the prevalence of smaller cell diameters and the simultaneous presence of more auxospore generations in high latitudes could be due to relatively lighter grazing by herbivorous zooplankton in these regions. Measurements of a few samples of a form of Rhizosolenia styliformis (Bright-well) which I called var. oceanica have been published earlier (Wimpenny, 1946), and auxospore formation was recorded from the Faroe-Shetland area. Since that time, owing to the kindness of the late Dr Vedel Taning, I have been able to see sixteen samples taken in the North Atlantic by the Danish research ship 'Dana' in1948. Mr J. Corlett of the Fisheries Laboratory, Lowestoft, has also been good enough to have made available to me three collections containing this variety from the Weather Ships 'Jig' and 'Item' in 1950 and two from the west ofBear Island in 1952. Finally, I have to add two samples of 33 and 50 specimens fromthe northern North Sea area made available to me many years ago by the late Miss Ogilvie and another sample from which I have been able to measure 100 specimens givenme by Dr James Fraser (E 34, 1934). Article in Journal/Newspaper North Atlantic Cambridge University Press Ogilvie ENVELOPE(-139.746,-139.746,63.563,63.563) Vedel ENVELOPE(-64.234,-64.234,-65.125,-65.125) Journal of the Marine Biological Association of the United Kingdom 46 3 541 546 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Aquatic Science |
spellingShingle |
Aquatic Science Wimpenny, R. S. The Size of Diatoms IV. The cell diameters in Rhizosolenia styliformis var. oceanica |
topic_facet |
Aquatic Science |
description |
Consideration has been given to the cell diameters of twenty-four samples of Rhizosolenia styliformis var. oceanica from a wide range of latitude together with material from eleven other collections already briefly recorded in Part II of this paper. It was found that the cells of the smallest diameter occurred in high latitudesand that the average values were greater at lower latitudes. More auxospore generations were present simultaneously in higher latitudes. An interpretation of these observations is that the prevalence of smaller cell diameters and the simultaneous presence of more auxospore generations in high latitudes could be due to relatively lighter grazing by herbivorous zooplankton in these regions. Measurements of a few samples of a form of Rhizosolenia styliformis (Bright-well) which I called var. oceanica have been published earlier (Wimpenny, 1946), and auxospore formation was recorded from the Faroe-Shetland area. Since that time, owing to the kindness of the late Dr Vedel Taning, I have been able to see sixteen samples taken in the North Atlantic by the Danish research ship 'Dana' in1948. Mr J. Corlett of the Fisheries Laboratory, Lowestoft, has also been good enough to have made available to me three collections containing this variety from the Weather Ships 'Jig' and 'Item' in 1950 and two from the west ofBear Island in 1952. Finally, I have to add two samples of 33 and 50 specimens fromthe northern North Sea area made available to me many years ago by the late Miss Ogilvie and another sample from which I have been able to measure 100 specimens givenme by Dr James Fraser (E 34, 1934). |
format |
Article in Journal/Newspaper |
author |
Wimpenny, R. S. |
author_facet |
Wimpenny, R. S. |
author_sort |
Wimpenny, R. S. |
title |
The Size of Diatoms IV. The cell diameters in Rhizosolenia styliformis var. oceanica |
title_short |
The Size of Diatoms IV. The cell diameters in Rhizosolenia styliformis var. oceanica |
title_full |
The Size of Diatoms IV. The cell diameters in Rhizosolenia styliformis var. oceanica |
title_fullStr |
The Size of Diatoms IV. The cell diameters in Rhizosolenia styliformis var. oceanica |
title_full_unstemmed |
The Size of Diatoms IV. The cell diameters in Rhizosolenia styliformis var. oceanica |
title_sort |
size of diatoms iv. the cell diameters in rhizosolenia styliformis var. oceanica |
publisher |
Cambridge University Press (CUP) |
publishDate |
1966 |
url |
http://dx.doi.org/10.1017/s0025315400033336 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315400033336 |
long_lat |
ENVELOPE(-139.746,-139.746,63.563,63.563) ENVELOPE(-64.234,-64.234,-65.125,-65.125) |
geographic |
Ogilvie Vedel |
geographic_facet |
Ogilvie Vedel |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Journal of the Marine Biological Association of the United Kingdom volume 46, issue 3, page 541-546 ISSN 0025-3154 1469-7769 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0025315400033336 |
container_title |
Journal of the Marine Biological Association of the United Kingdom |
container_volume |
46 |
container_issue |
3 |
container_start_page |
541 |
op_container_end_page |
546 |
_version_ |
1792503292935274496 |