Seasonal changes in respiration rates of copepodite stage V Calanus finmarchicus (Gunnerus)
Copepodite stage V Calanus finmarchicus were collected at locations on the continental shelf north of Scotland, in the Faroe–Shetland Channel and west of Ireland on six occasions covering winter, spring and summer from October 1993 to June 1995. Oxygen consumption by the overwintering and active spr...
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crwiley:10.1046/j.1365-2419.1999.00002.x 2024-09-15T18:00:40+00:00 Seasonal changes in respiration rates of copepodite stage V Calanus finmarchicus (Gunnerus) Ingvarsdóttir, A. Houlihan, D.F. Heath, M.R. Hay, S.J. 1999 http://dx.doi.org/10.1046/j.1365-2419.1999.00002.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2419.1999.00002.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2419.1999.00002.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Fisheries Oceanography volume 8, issue s1, page 73-83 ISSN 1054-6006 1365-2419 journal-article 1999 crwiley https://doi.org/10.1046/j.1365-2419.1999.00002.x 2024-08-30T04:09:23Z Copepodite stage V Calanus finmarchicus were collected at locations on the continental shelf north of Scotland, in the Faroe–Shetland Channel and west of Ireland on six occasions covering winter, spring and summer from October 1993 to June 1995. Oxygen consumption by the overwintering and active spring/summer population of animals was determined at temperatures close to in situ temperatures. Laboratory measurements of oxygen consumption were also made at standardized temperatures (0°C, 5°C, 7°C and 12.5°C) to determine the sensitivity of animals to temperature change in the different seasons. Rates of oxygen consumption were very low (7–30 μmol O 2 gC −1 h −1 ) at in situ temperatures during the winter and early spring and significantly higher (105–219 μmol O 2 gC −1 h −1 ) for the active surface population in May and June. Animals collected from the overwintering population showed no significant response to changes in temperature. Due to the low respiration rates, the calculated rate of decrease in carbon content in diapausing copepodite stage CV was very low (approximately 0.250 μgC day −1 ). The respiration rates were used to construct a model to estimate survival of the animals with an initial carbon content equivalent to that expected of animals in October. The results showed that in order to survive during winter and have enough energy for moulting and migration to the surface in the spring, these animals have to live at temperatures close to 0°C and be in a diapause state. Article in Journal/Newspaper Calanus finmarchicus Wiley Online Library Fisheries Oceanography 8 73 83 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Copepodite stage V Calanus finmarchicus were collected at locations on the continental shelf north of Scotland, in the Faroe–Shetland Channel and west of Ireland on six occasions covering winter, spring and summer from October 1993 to June 1995. Oxygen consumption by the overwintering and active spring/summer population of animals was determined at temperatures close to in situ temperatures. Laboratory measurements of oxygen consumption were also made at standardized temperatures (0°C, 5°C, 7°C and 12.5°C) to determine the sensitivity of animals to temperature change in the different seasons. Rates of oxygen consumption were very low (7–30 μmol O 2 gC −1 h −1 ) at in situ temperatures during the winter and early spring and significantly higher (105–219 μmol O 2 gC −1 h −1 ) for the active surface population in May and June. Animals collected from the overwintering population showed no significant response to changes in temperature. Due to the low respiration rates, the calculated rate of decrease in carbon content in diapausing copepodite stage CV was very low (approximately 0.250 μgC day −1 ). The respiration rates were used to construct a model to estimate survival of the animals with an initial carbon content equivalent to that expected of animals in October. The results showed that in order to survive during winter and have enough energy for moulting and migration to the surface in the spring, these animals have to live at temperatures close to 0°C and be in a diapause state. |
format |
Article in Journal/Newspaper |
author |
Ingvarsdóttir, A. Houlihan, D.F. Heath, M.R. Hay, S.J. |
spellingShingle |
Ingvarsdóttir, A. Houlihan, D.F. Heath, M.R. Hay, S.J. Seasonal changes in respiration rates of copepodite stage V Calanus finmarchicus (Gunnerus) |
author_facet |
Ingvarsdóttir, A. Houlihan, D.F. Heath, M.R. Hay, S.J. |
author_sort |
Ingvarsdóttir, A. |
title |
Seasonal changes in respiration rates of copepodite stage V Calanus finmarchicus (Gunnerus) |
title_short |
Seasonal changes in respiration rates of copepodite stage V Calanus finmarchicus (Gunnerus) |
title_full |
Seasonal changes in respiration rates of copepodite stage V Calanus finmarchicus (Gunnerus) |
title_fullStr |
Seasonal changes in respiration rates of copepodite stage V Calanus finmarchicus (Gunnerus) |
title_full_unstemmed |
Seasonal changes in respiration rates of copepodite stage V Calanus finmarchicus (Gunnerus) |
title_sort |
seasonal changes in respiration rates of copepodite stage v calanus finmarchicus (gunnerus) |
publisher |
Wiley |
publishDate |
1999 |
url |
http://dx.doi.org/10.1046/j.1365-2419.1999.00002.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2419.1999.00002.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2419.1999.00002.x |
genre |
Calanus finmarchicus |
genre_facet |
Calanus finmarchicus |
op_source |
Fisheries Oceanography volume 8, issue s1, page 73-83 ISSN 1054-6006 1365-2419 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.1365-2419.1999.00002.x |
container_title |
Fisheries Oceanography |
container_volume |
8 |
container_start_page |
73 |
op_container_end_page |
83 |
_version_ |
1810437837772816384 |