Histological changes of the digestive epithelium in Calanus finmarchicus: An index for diapause?
Samples collected in the Irminger Basin during the Marine Productivity Programme (2001-2004) were used to study Calanus finmarchicus vertical distribution and histological changes of its mid-gut epithelium in relation to overwintering strategy. Previous studies have shown that cell composition of th...
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Online Access: | https://hal.science/hal-03008519 https://doi.org/10.1007/s00227-006-0481-3 |
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ftunimontpellier:oai:HAL:hal-03008519v1 2023-05-15T15:47:52+02:00 Histological changes of the digestive epithelium in Calanus finmarchicus: An index for diapause? Bonnet, D. Harris, R.P. Hay, S. Ingvarsdottir, A. Simon, O. Plymouth Marine Laboratory (PML) Ecologie des systèmes marins côtiers (Ecosym) Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS) FRS Marine Laboratory Laboratoire de Radioécologie et d'Ecotoxicologie (IRSN/DEI/SECRE/LRE) Service d'Etude du Comportement des Radionucléides dans les Ecosystèmes (IRSN/DEI/SECRE) Institut de Radioprotection et de Sûreté Nucléaire (IRSN)-Institut de Radioprotection et de Sûreté Nucléaire (IRSN) 2007 https://hal.science/hal-03008519 https://doi.org/10.1007/s00227-006-0481-3 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00227-006-0481-3 hal-03008519 https://hal.science/hal-03008519 doi:10.1007/s00227-006-0481-3 ISSN: 0025-3162 EISSN: 1432-1793 Marine Biology https://hal.science/hal-03008519 Marine Biology, 2007, 151 (1), pp.313-326. ⟨10.1007/s00227-006-0481-3⟩ crustacean diapause digestive system life cycle overwintering physiological response vertical distribution Atlantic Ocean Irminger Sea Calanus finmarchicus [SDV]Life Sciences [q-bio] info:eu-repo/semantics/article Journal articles 2007 ftunimontpellier https://doi.org/10.1007/s00227-006-0481-3 2023-03-07T23:44:37Z Samples collected in the Irminger Basin during the Marine Productivity Programme (2001-2004) were used to study Calanus finmarchicus vertical distribution and histological changes of its mid-gut epithelium in relation to overwintering strategy. Previous studies have shown that cell composition of the glandular part of the mid-gut, size and abundance of B cells responsible for digestive enzyme secretion and thickness of the epithelium could be good indicators of individual physiological state. We used C. finmarchicus abundance, vertical distribution, lipid sac volume and mid-gut epithelium histological composition of individuals collected in contrasting hydrographic areas of the Irminger Basin and sampled at different seasons to understand C. finmarchicus life cycle in the Irminger Basin. Lipid sac volumes were significantly different between the seasons but neither between the hydographic areas nor the various depths of the water column. B cells concentrations and thickness of the epithelium have allowed us to distinguish a non-diapausing surface population (350 m) in the East Greenland Current while individuals at depth (1,250 m) were overwintering. This result is correlated by a bimodal vertical distribution of the CV in this biozone. In the other hydrographic areas, all CV were dormant, although surface individuals were not analysed in the Southern Irminger Current. © 2006 Springer-Verlag. Article in Journal/Newspaper Calanus finmarchicus East Greenland east greenland current Greenland Université de Montpellier: HAL Greenland Irminger Basin ENVELOPE(-36.000,-36.000,61.000,61.000) Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) Marine Biology 151 1 313 326 |
institution |
Open Polar |
collection |
Université de Montpellier: HAL |
op_collection_id |
ftunimontpellier |
language |
English |
topic |
crustacean diapause digestive system life cycle overwintering physiological response vertical distribution Atlantic Ocean Irminger Sea Calanus finmarchicus [SDV]Life Sciences [q-bio] |
spellingShingle |
crustacean diapause digestive system life cycle overwintering physiological response vertical distribution Atlantic Ocean Irminger Sea Calanus finmarchicus [SDV]Life Sciences [q-bio] Bonnet, D. Harris, R.P. Hay, S. Ingvarsdottir, A. Simon, O. Histological changes of the digestive epithelium in Calanus finmarchicus: An index for diapause? |
topic_facet |
crustacean diapause digestive system life cycle overwintering physiological response vertical distribution Atlantic Ocean Irminger Sea Calanus finmarchicus [SDV]Life Sciences [q-bio] |
description |
Samples collected in the Irminger Basin during the Marine Productivity Programme (2001-2004) were used to study Calanus finmarchicus vertical distribution and histological changes of its mid-gut epithelium in relation to overwintering strategy. Previous studies have shown that cell composition of the glandular part of the mid-gut, size and abundance of B cells responsible for digestive enzyme secretion and thickness of the epithelium could be good indicators of individual physiological state. We used C. finmarchicus abundance, vertical distribution, lipid sac volume and mid-gut epithelium histological composition of individuals collected in contrasting hydrographic areas of the Irminger Basin and sampled at different seasons to understand C. finmarchicus life cycle in the Irminger Basin. Lipid sac volumes were significantly different between the seasons but neither between the hydographic areas nor the various depths of the water column. B cells concentrations and thickness of the epithelium have allowed us to distinguish a non-diapausing surface population (350 m) in the East Greenland Current while individuals at depth (1,250 m) were overwintering. This result is correlated by a bimodal vertical distribution of the CV in this biozone. In the other hydrographic areas, all CV were dormant, although surface individuals were not analysed in the Southern Irminger Current. © 2006 Springer-Verlag. |
author2 |
Plymouth Marine Laboratory (PML) Ecologie des systèmes marins côtiers (Ecosym) Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS) FRS Marine Laboratory Laboratoire de Radioécologie et d'Ecotoxicologie (IRSN/DEI/SECRE/LRE) Service d'Etude du Comportement des Radionucléides dans les Ecosystèmes (IRSN/DEI/SECRE) Institut de Radioprotection et de Sûreté Nucléaire (IRSN)-Institut de Radioprotection et de Sûreté Nucléaire (IRSN) |
format |
Article in Journal/Newspaper |
author |
Bonnet, D. Harris, R.P. Hay, S. Ingvarsdottir, A. Simon, O. |
author_facet |
Bonnet, D. Harris, R.P. Hay, S. Ingvarsdottir, A. Simon, O. |
author_sort |
Bonnet, D. |
title |
Histological changes of the digestive epithelium in Calanus finmarchicus: An index for diapause? |
title_short |
Histological changes of the digestive epithelium in Calanus finmarchicus: An index for diapause? |
title_full |
Histological changes of the digestive epithelium in Calanus finmarchicus: An index for diapause? |
title_fullStr |
Histological changes of the digestive epithelium in Calanus finmarchicus: An index for diapause? |
title_full_unstemmed |
Histological changes of the digestive epithelium in Calanus finmarchicus: An index for diapause? |
title_sort |
histological changes of the digestive epithelium in calanus finmarchicus: an index for diapause? |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.science/hal-03008519 https://doi.org/10.1007/s00227-006-0481-3 |
long_lat |
ENVELOPE(-36.000,-36.000,61.000,61.000) ENVELOPE(-34.041,-34.041,63.054,63.054) |
geographic |
Greenland Irminger Basin Irminger Sea |
geographic_facet |
Greenland Irminger Basin Irminger Sea |
genre |
Calanus finmarchicus East Greenland east greenland current Greenland |
genre_facet |
Calanus finmarchicus East Greenland east greenland current Greenland |
op_source |
ISSN: 0025-3162 EISSN: 1432-1793 Marine Biology https://hal.science/hal-03008519 Marine Biology, 2007, 151 (1), pp.313-326. ⟨10.1007/s00227-006-0481-3⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00227-006-0481-3 hal-03008519 https://hal.science/hal-03008519 doi:10.1007/s00227-006-0481-3 |
op_doi |
https://doi.org/10.1007/s00227-006-0481-3 |
container_title |
Marine Biology |
container_volume |
151 |
container_issue |
1 |
container_start_page |
313 |
op_container_end_page |
326 |
_version_ |
1766382836496990208 |