A re-examination of Calanus collected off Plymouth
Rees (1949) has established significant biological differences between the two forms of the copepod Calanus finmarchicus , namely finmarchicus and helgolandicus. It is therefore necessary that in future research on the behaviour of Calanus the two forms should be distinguished. I have myself publish...
Published in: | Journal of the Marine Biological Association of the United Kingdom |
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Language: | English |
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Cambridge University Press (CUP)
1951
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Online Access: | http://dx.doi.org/10.1017/s0025315400012790 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315400012790 |
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crcambridgeupr:10.1017/s0025315400012790 2024-03-03T08:43:24+00:00 A re-examination of Calanus collected off Plymouth Russell, F. S. 1951 http://dx.doi.org/10.1017/s0025315400012790 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315400012790 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Journal of the Marine Biological Association of the United Kingdom volume 30, issue 2, page 313-314 ISSN 0025-3154 1469-7769 Aquatic Science journal-article 1951 crcambridgeupr https://doi.org/10.1017/s0025315400012790 2024-02-08T08:34:15Z Rees (1949) has established significant biological differences between the two forms of the copepod Calanus finmarchicus , namely finmarchicus and helgolandicus. It is therefore necessary that in future research on the behaviour of Calanus the two forms should be distinguished. I have myself published observations on the vertical distribution of Calanus and on the seasonal changes in size of individuals of the populations of this copepod off Plymouth. In order to know whether my results have been vitiated by the presence of the two forms in the collections, I have re-examined representative samples of adult females, using the fifth leg as the distinguishing character. The collections in question were those made in 1926 which formed the subject of a paper on seasonal changes in vertical distribution and in the sizes of individuals of different generations (Russell, 1928); and those made in 1931 and recorded in my paper on the vertical distribution of Calanus in relation to light intensity (Russell, 1934). Article in Journal/Newspaper Calanus finmarchicus Cambridge University Press Journal of the Marine Biological Association of the United Kingdom 30 2 313 314 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
topic |
Aquatic Science |
spellingShingle |
Aquatic Science Russell, F. S. A re-examination of Calanus collected off Plymouth |
topic_facet |
Aquatic Science |
description |
Rees (1949) has established significant biological differences between the two forms of the copepod Calanus finmarchicus , namely finmarchicus and helgolandicus. It is therefore necessary that in future research on the behaviour of Calanus the two forms should be distinguished. I have myself published observations on the vertical distribution of Calanus and on the seasonal changes in size of individuals of the populations of this copepod off Plymouth. In order to know whether my results have been vitiated by the presence of the two forms in the collections, I have re-examined representative samples of adult females, using the fifth leg as the distinguishing character. The collections in question were those made in 1926 which formed the subject of a paper on seasonal changes in vertical distribution and in the sizes of individuals of different generations (Russell, 1928); and those made in 1931 and recorded in my paper on the vertical distribution of Calanus in relation to light intensity (Russell, 1934). |
format |
Article in Journal/Newspaper |
author |
Russell, F. S. |
author_facet |
Russell, F. S. |
author_sort |
Russell, F. S. |
title |
A re-examination of Calanus collected off Plymouth |
title_short |
A re-examination of Calanus collected off Plymouth |
title_full |
A re-examination of Calanus collected off Plymouth |
title_fullStr |
A re-examination of Calanus collected off Plymouth |
title_full_unstemmed |
A re-examination of Calanus collected off Plymouth |
title_sort |
re-examination of calanus collected off plymouth |
publisher |
Cambridge University Press (CUP) |
publishDate |
1951 |
url |
http://dx.doi.org/10.1017/s0025315400012790 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315400012790 |
genre |
Calanus finmarchicus |
genre_facet |
Calanus finmarchicus |
op_source |
Journal of the Marine Biological Association of the United Kingdom volume 30, issue 2, page 313-314 ISSN 0025-3154 1469-7769 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0025315400012790 |
container_title |
Journal of the Marine Biological Association of the United Kingdom |
container_volume |
30 |
container_issue |
2 |
container_start_page |
313 |
op_container_end_page |
314 |
_version_ |
1792498823061307392 |