Underice grazing by planktonic, calanoid copepods in relation to a bloom of ice microalgae in southeastern Hudson Bay
A spring bloom of ice microalgae was observed at a station on southeastern Hudson Bay. Levels of pheopigments in guts of females of Calanus glacialis and Pseudocalanus spp., the dominant calanoid copepods in this region, increased by an order of magnitude after onset of the bloom. Feeding had a diel...
Published in: | Limnology and Oceanography |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
1988
|
Subjects: | |
Online Access: | http://dx.doi.org/10.4319/lo.1988.33.2.0280 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.1988.33.2.0280 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.1988.33.2.0280 |
id |
crwiley:10.4319/lo.1988.33.2.0280 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.4319/lo.1988.33.2.0280 2024-06-09T07:44:03+00:00 Underice grazing by planktonic, calanoid copepods in relation to a bloom of ice microalgae in southeastern Hudson Bay Runge, Jeffrey A. Ingram, R. Grant 1988 http://dx.doi.org/10.4319/lo.1988.33.2.0280 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.1988.33.2.0280 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.1988.33.2.0280 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Limnology and Oceanography volume 33, issue 2, page 280-286 ISSN 0024-3590 1939-5590 journal-article 1988 crwiley https://doi.org/10.4319/lo.1988.33.2.0280 2024-05-16T14:26:15Z A spring bloom of ice microalgae was observed at a station on southeastern Hudson Bay. Levels of pheopigments in guts of females of Calanus glacialis and Pseudocalanus spp., the dominant calanoid copepods in this region, increased by an order of magnitude after onset of the bloom. Feeding had a diel cycle and was associated with a nighttime migration of females to the ice‐water interface. Fragments of pennate, ice diatoms were observed microscopically in most guts of Calanus and Metridia, but only rarely in Pseudocalanus, which may have been feeding on flagellates associated with the ice‐water interface. The results suggest that ice microalgae in Hudson Bay are a regular and significant source of nutrition for planktonic copepods before the phytoplankton bloom. The structure of the layer at the ice‐water interface may influence feeding behavior on ice microalgae by arctic copepods. Article in Journal/Newspaper Arctic Calanus glacialis Hudson Bay Phytoplankton Copepods Wiley Online Library Arctic Hudson Hudson Bay Limnology and Oceanography 33 2 280 286 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
A spring bloom of ice microalgae was observed at a station on southeastern Hudson Bay. Levels of pheopigments in guts of females of Calanus glacialis and Pseudocalanus spp., the dominant calanoid copepods in this region, increased by an order of magnitude after onset of the bloom. Feeding had a diel cycle and was associated with a nighttime migration of females to the ice‐water interface. Fragments of pennate, ice diatoms were observed microscopically in most guts of Calanus and Metridia, but only rarely in Pseudocalanus, which may have been feeding on flagellates associated with the ice‐water interface. The results suggest that ice microalgae in Hudson Bay are a regular and significant source of nutrition for planktonic copepods before the phytoplankton bloom. The structure of the layer at the ice‐water interface may influence feeding behavior on ice microalgae by arctic copepods. |
format |
Article in Journal/Newspaper |
author |
Runge, Jeffrey A. Ingram, R. Grant |
spellingShingle |
Runge, Jeffrey A. Ingram, R. Grant Underice grazing by planktonic, calanoid copepods in relation to a bloom of ice microalgae in southeastern Hudson Bay |
author_facet |
Runge, Jeffrey A. Ingram, R. Grant |
author_sort |
Runge, Jeffrey A. |
title |
Underice grazing by planktonic, calanoid copepods in relation to a bloom of ice microalgae in southeastern Hudson Bay |
title_short |
Underice grazing by planktonic, calanoid copepods in relation to a bloom of ice microalgae in southeastern Hudson Bay |
title_full |
Underice grazing by planktonic, calanoid copepods in relation to a bloom of ice microalgae in southeastern Hudson Bay |
title_fullStr |
Underice grazing by planktonic, calanoid copepods in relation to a bloom of ice microalgae in southeastern Hudson Bay |
title_full_unstemmed |
Underice grazing by planktonic, calanoid copepods in relation to a bloom of ice microalgae in southeastern Hudson Bay |
title_sort |
underice grazing by planktonic, calanoid copepods in relation to a bloom of ice microalgae in southeastern hudson bay |
publisher |
Wiley |
publishDate |
1988 |
url |
http://dx.doi.org/10.4319/lo.1988.33.2.0280 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.1988.33.2.0280 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.1988.33.2.0280 |
geographic |
Arctic Hudson Hudson Bay |
geographic_facet |
Arctic Hudson Hudson Bay |
genre |
Arctic Calanus glacialis Hudson Bay Phytoplankton Copepods |
genre_facet |
Arctic Calanus glacialis Hudson Bay Phytoplankton Copepods |
op_source |
Limnology and Oceanography volume 33, issue 2, page 280-286 ISSN 0024-3590 1939-5590 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.4319/lo.1988.33.2.0280 |
container_title |
Limnology and Oceanography |
container_volume |
33 |
container_issue |
2 |
container_start_page |
280 |
op_container_end_page |
286 |
_version_ |
1801372852711063552 |