THE POST-EMBRYONIC DEVELOPMENT OF THE COMMON PANDALIDS OF BRITISH COLUMBIA
The paper deals with the post-embryonic development of the five most common pandalids in British Columbia, namely. Pandalus danae, Pandalus borealis, Pandalus hypsinotus, Pandalus platyceros, and Pandalopsis dispar, in greatest detail with the first species, with which the others are compared. The f...
Published in: | Contributions to Canadian Biology and Fisheries |
---|---|
Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
1931
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/f31-006 http://www.nrcresearchpress.com/doi/pdf/10.1139/f31-006 |
id |
crcansciencepubl:10.1139/f31-006 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/f31-006 2023-12-17T10:48:19+01:00 THE POST-EMBRYONIC DEVELOPMENT OF THE COMMON PANDALIDS OF BRITISH COLUMBIA BERKELEY, ALFREDA A. 1931 http://dx.doi.org/10.1139/f31-006 http://www.nrcresearchpress.com/doi/pdf/10.1139/f31-006 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Contributions to Canadian Biology and Fisheries volume 6, issue 1, page 79-163 ISSN 0366-5348 General Earth and Planetary Sciences General Engineering General Environmental Science journal-article 1931 crcansciencepubl https://doi.org/10.1139/f31-006 2023-11-19T13:39:30Z The paper deals with the post-embryonic development of the five most common pandalids in British Columbia, namely. Pandalus danae, Pandalus borealis, Pandalus hypsinotus, Pandalus platyceros, and Pandalopsis dispar, in greatest detail with the first species, with which the others are compared. The first stage of post-embryonic development was obtained for each species by hatching the eggs in the laboratory. Later larval stages were obtained from plankton collections, and all known stages were described and illustrated. All five species tend to be more fully developed on hatching than is normal for Caridea. The individuals of each species all undergo a change of sex, functioning first as males and later as females, the time spent in each phase varying in different species. Pandalus danae spends about eighteen months in the male phase, P. borealis and P. hypsinotus each spend about thirty months, while P. platyceros and Pandalopsis dispar are about forty-two months old before they begin to change to the female phase. The rate of growth is similar in all for the first summer, and then begins to vary. Differences in the rates of growth of the different species may partly be caused by variations in the rapidity with which they mature as males, and in the length of time spent in the male phase. Only for Pandalus danae has the rate of increase of weight been considered, and it was found to increase approximately as the cube of the length. Article in Journal/Newspaper Pandalus borealis Canadian Science Publishing (via Crossref) Contributions to Canadian Biology and Fisheries 6 1 79 163 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Earth and Planetary Sciences General Engineering General Environmental Science |
spellingShingle |
General Earth and Planetary Sciences General Engineering General Environmental Science BERKELEY, ALFREDA A. THE POST-EMBRYONIC DEVELOPMENT OF THE COMMON PANDALIDS OF BRITISH COLUMBIA |
topic_facet |
General Earth and Planetary Sciences General Engineering General Environmental Science |
description |
The paper deals with the post-embryonic development of the five most common pandalids in British Columbia, namely. Pandalus danae, Pandalus borealis, Pandalus hypsinotus, Pandalus platyceros, and Pandalopsis dispar, in greatest detail with the first species, with which the others are compared. The first stage of post-embryonic development was obtained for each species by hatching the eggs in the laboratory. Later larval stages were obtained from plankton collections, and all known stages were described and illustrated. All five species tend to be more fully developed on hatching than is normal for Caridea. The individuals of each species all undergo a change of sex, functioning first as males and later as females, the time spent in each phase varying in different species. Pandalus danae spends about eighteen months in the male phase, P. borealis and P. hypsinotus each spend about thirty months, while P. platyceros and Pandalopsis dispar are about forty-two months old before they begin to change to the female phase. The rate of growth is similar in all for the first summer, and then begins to vary. Differences in the rates of growth of the different species may partly be caused by variations in the rapidity with which they mature as males, and in the length of time spent in the male phase. Only for Pandalus danae has the rate of increase of weight been considered, and it was found to increase approximately as the cube of the length. |
format |
Article in Journal/Newspaper |
author |
BERKELEY, ALFREDA A. |
author_facet |
BERKELEY, ALFREDA A. |
author_sort |
BERKELEY, ALFREDA A. |
title |
THE POST-EMBRYONIC DEVELOPMENT OF THE COMMON PANDALIDS OF BRITISH COLUMBIA |
title_short |
THE POST-EMBRYONIC DEVELOPMENT OF THE COMMON PANDALIDS OF BRITISH COLUMBIA |
title_full |
THE POST-EMBRYONIC DEVELOPMENT OF THE COMMON PANDALIDS OF BRITISH COLUMBIA |
title_fullStr |
THE POST-EMBRYONIC DEVELOPMENT OF THE COMMON PANDALIDS OF BRITISH COLUMBIA |
title_full_unstemmed |
THE POST-EMBRYONIC DEVELOPMENT OF THE COMMON PANDALIDS OF BRITISH COLUMBIA |
title_sort |
post-embryonic development of the common pandalids of british columbia |
publisher |
Canadian Science Publishing |
publishDate |
1931 |
url |
http://dx.doi.org/10.1139/f31-006 http://www.nrcresearchpress.com/doi/pdf/10.1139/f31-006 |
genre |
Pandalus borealis |
genre_facet |
Pandalus borealis |
op_source |
Contributions to Canadian Biology and Fisheries volume 6, issue 1, page 79-163 ISSN 0366-5348 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f31-006 |
container_title |
Contributions to Canadian Biology and Fisheries |
container_volume |
6 |
container_issue |
1 |
container_start_page |
79 |
op_container_end_page |
163 |
_version_ |
1785572461915406336 |