Characteristics of Calanus finmarchicus dormancy patterns in the Northwest Atlantic
Demographic time-series from four fixed stations in the Northwest Atlantic Ocean demonstrate variable timing of entry into and emergence from dormancy in subpopulations of the planktonic copepod Calanus finmarchicus. A proxy for timing of entry was estab-lished as the date each year when the proport...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.482.5135 2023-05-15T15:47:52+02:00 Characteristics of Calanus finmarchicus dormancy patterns in the Northwest Atlantic Catherine L. Johnson Andrew W. Leising Jeffrey A. Runge Erica J. H. Head Pierre Pepin Edward G. Durbin The Pennsylvania State University CiteSeerX Archives 2007 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.482.5135 http://icesjms.oxfordjournals.org/content/65/3/339.full.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.482.5135 http://icesjms.oxfordjournals.org/content/65/3/339.full.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://icesjms.oxfordjournals.org/content/65/3/339.full.pdf Atlantic zonal monitoring programme Calanus finmarchicus copepod population dynamics diapause dormancy individual-based model lipids text 2007 ftciteseerx 2016-01-08T07:59:30Z Demographic time-series from four fixed stations in the Northwest Atlantic Ocean demonstrate variable timing of entry into and emergence from dormancy in subpopulations of the planktonic copepod Calanus finmarchicus. A proxy for timing of entry was estab-lished as the date each year when the proportion of the fifth copepodid stage (CV) in the subpopulation rose to half its overall cli-matological maximum CV proportion at that station. The proxy for timing of emergence at each station was set as the first date when adults were more than 10 % of the total abundance of copepodid stages. An alternate emergence proxy date was determined by back-calculating the spawning dates of the first early copepodid stages appearing in spring, using a stage-structured, individual-based model. No single environmental cue (photoperiod, surface temperature, or average surface-layer chlorophyll a concentration) consistently explained entry or emergence dates across all stations. Among hypotheses put forward to explain dormancy in Calanus species, we cannot eliminate the lipid accumulation window hypothesis for onset of dormancy or a lipid-modulated endogenous timer con-trolling dormancy duration. The fundamental premise of these hypotheses is that individuals can only enter dormancy if their food and temperature history allows them to accumulate sufficient lipid to endure overwintering, moult, and undergo early stages of gonad Text Calanus finmarchicus Northwest Atlantic Unknown |
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Open Polar |
collection |
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ftciteseerx |
language |
English |
topic |
Atlantic zonal monitoring programme Calanus finmarchicus copepod population dynamics diapause dormancy individual-based model lipids |
spellingShingle |
Atlantic zonal monitoring programme Calanus finmarchicus copepod population dynamics diapause dormancy individual-based model lipids Catherine L. Johnson Andrew W. Leising Jeffrey A. Runge Erica J. H. Head Pierre Pepin Edward G. Durbin Characteristics of Calanus finmarchicus dormancy patterns in the Northwest Atlantic |
topic_facet |
Atlantic zonal monitoring programme Calanus finmarchicus copepod population dynamics diapause dormancy individual-based model lipids |
description |
Demographic time-series from four fixed stations in the Northwest Atlantic Ocean demonstrate variable timing of entry into and emergence from dormancy in subpopulations of the planktonic copepod Calanus finmarchicus. A proxy for timing of entry was estab-lished as the date each year when the proportion of the fifth copepodid stage (CV) in the subpopulation rose to half its overall cli-matological maximum CV proportion at that station. The proxy for timing of emergence at each station was set as the first date when adults were more than 10 % of the total abundance of copepodid stages. An alternate emergence proxy date was determined by back-calculating the spawning dates of the first early copepodid stages appearing in spring, using a stage-structured, individual-based model. No single environmental cue (photoperiod, surface temperature, or average surface-layer chlorophyll a concentration) consistently explained entry or emergence dates across all stations. Among hypotheses put forward to explain dormancy in Calanus species, we cannot eliminate the lipid accumulation window hypothesis for onset of dormancy or a lipid-modulated endogenous timer con-trolling dormancy duration. The fundamental premise of these hypotheses is that individuals can only enter dormancy if their food and temperature history allows them to accumulate sufficient lipid to endure overwintering, moult, and undergo early stages of gonad |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Catherine L. Johnson Andrew W. Leising Jeffrey A. Runge Erica J. H. Head Pierre Pepin Edward G. Durbin |
author_facet |
Catherine L. Johnson Andrew W. Leising Jeffrey A. Runge Erica J. H. Head Pierre Pepin Edward G. Durbin |
author_sort |
Catherine L. Johnson |
title |
Characteristics of Calanus finmarchicus dormancy patterns in the Northwest Atlantic |
title_short |
Characteristics of Calanus finmarchicus dormancy patterns in the Northwest Atlantic |
title_full |
Characteristics of Calanus finmarchicus dormancy patterns in the Northwest Atlantic |
title_fullStr |
Characteristics of Calanus finmarchicus dormancy patterns in the Northwest Atlantic |
title_full_unstemmed |
Characteristics of Calanus finmarchicus dormancy patterns in the Northwest Atlantic |
title_sort |
characteristics of calanus finmarchicus dormancy patterns in the northwest atlantic |
publishDate |
2007 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.482.5135 http://icesjms.oxfordjournals.org/content/65/3/339.full.pdf |
genre |
Calanus finmarchicus Northwest Atlantic |
genre_facet |
Calanus finmarchicus Northwest Atlantic |
op_source |
http://icesjms.oxfordjournals.org/content/65/3/339.full.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.482.5135 http://icesjms.oxfordjournals.org/content/65/3/339.full.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766382834977603584 |