Life-history traits of the copepods Pseudocalanus minutus (Calanoida) and Oithona similis (Cyclopoida) in the Arctic Kongsfjorden (Svalbard) with particular emphasis on seasonality
The life-history traits of the copepods Pseudocalanus minutus (Calanoida) and Oithona similis (Cyclopoida) were investigated in the Arctic Kongsfjorden (Svalbard). In November, both species exhibited maximum abundances (P. minutus: 111,297 and O. similis: 704,633 ind m2), whereas minima occurred in...
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Format: | Doctoral or Postdoctoral Thesis |
Language: | English |
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Universität Bremen
2006
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Online Access: | https://media.suub.uni-bremen.de/handle/elib/2313 https://nbn-resolving.org/urn:nbn:de:gbv:46-diss000105636 |
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ftsubbremen:oai:media.suub.uni-bremen.de:Publications/elib/2313 2023-05-15T14:53:34+02:00 Life-history traits of the copepods Pseudocalanus minutus (Calanoida) and Oithona similis (Cyclopoida) in the Arctic Kongsfjorden (Svalbard) with particular emphasis on seasonality Lebensstrategien der Copepoden Pseudocalanus minutus (Calanoida) und Oithona similis (Cyclopoida) im arktischen Kongsfjord (Svalbard) unter besonderer Berücksichtigung des Aspektes der Saisonalität Lischka, Silke Hagen, Wilhelm Schiel, Sigrid 2006-11-24 application/pdf https://media.suub.uni-bremen.de/handle/elib/2313 https://nbn-resolving.org/urn:nbn:de:gbv:46-diss000105636 eng eng Universität Bremen FB2 Biologie/Chemie https://media.suub.uni-bremen.de/handle/elib/2313 urn:nbn:de:gbv:46-diss000105636 info:eu-repo/semantics/openAccess Life-history traits copepods Pseudocalanus minutus Oithona similis Arctic Kongsfjord Svalbard Spitsbergen seasonality abundance lipids fatty acid composition digestive enzymes trypsin) 570 570 Life sciences biology ddc:570 Dissertation doctoralThesis 2006 ftsubbremen 2022-11-09T07:09:46Z The life-history traits of the copepods Pseudocalanus minutus (Calanoida) and Oithona similis (Cyclopoida) were investigated in the Arctic Kongsfjorden (Svalbard). In November, both species exhibited maximum abundances (P. minutus: 111,297 and O. similis: 704,633 ind m2), whereas minima occurred in June (1,088 and 4,483 ind m2, respectively). High levels of diatom marker fatty acids (16:1(n-7), 16:4(n-1), 20:5(n-3)) as well as high trypsin activities showed that the diatom bloom in spring was of specific importance for adult females and stage V copepodids of P. minutus to fuel final maturation processes and reproduction in May/June. O. similis generally followed an omnivorous feeding mode as indicated by consistently high amounts of the 18:1(n-9) fatty acid and the general predominance of the (dino-)flagellate biomarker 22:6(n-3). The first reproductive peak in June was primarily fueled by lipid reserves (wax esters), whereas the second reproductive peak in August/September co-occurred with energy storage for overwintering. Doctoral or Postdoctoral Thesis Arctic Arktis* Kongsfjord* Kongsfjorden Pseudocalanus minutus Svalbard Copepods Spitsbergen Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen) Arctic Svalbard Kongsfjord ENVELOPE(29.319,29.319,70.721,70.721) |
institution |
Open Polar |
collection |
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen) |
op_collection_id |
ftsubbremen |
language |
English |
topic |
Life-history traits copepods Pseudocalanus minutus Oithona similis Arctic Kongsfjord Svalbard Spitsbergen seasonality abundance lipids fatty acid composition digestive enzymes trypsin) 570 570 Life sciences biology ddc:570 |
spellingShingle |
Life-history traits copepods Pseudocalanus minutus Oithona similis Arctic Kongsfjord Svalbard Spitsbergen seasonality abundance lipids fatty acid composition digestive enzymes trypsin) 570 570 Life sciences biology ddc:570 Lischka, Silke Life-history traits of the copepods Pseudocalanus minutus (Calanoida) and Oithona similis (Cyclopoida) in the Arctic Kongsfjorden (Svalbard) with particular emphasis on seasonality |
topic_facet |
Life-history traits copepods Pseudocalanus minutus Oithona similis Arctic Kongsfjord Svalbard Spitsbergen seasonality abundance lipids fatty acid composition digestive enzymes trypsin) 570 570 Life sciences biology ddc:570 |
description |
The life-history traits of the copepods Pseudocalanus minutus (Calanoida) and Oithona similis (Cyclopoida) were investigated in the Arctic Kongsfjorden (Svalbard). In November, both species exhibited maximum abundances (P. minutus: 111,297 and O. similis: 704,633 ind m2), whereas minima occurred in June (1,088 and 4,483 ind m2, respectively). High levels of diatom marker fatty acids (16:1(n-7), 16:4(n-1), 20:5(n-3)) as well as high trypsin activities showed that the diatom bloom in spring was of specific importance for adult females and stage V copepodids of P. minutus to fuel final maturation processes and reproduction in May/June. O. similis generally followed an omnivorous feeding mode as indicated by consistently high amounts of the 18:1(n-9) fatty acid and the general predominance of the (dino-)flagellate biomarker 22:6(n-3). The first reproductive peak in June was primarily fueled by lipid reserves (wax esters), whereas the second reproductive peak in August/September co-occurred with energy storage for overwintering. |
author2 |
Hagen, Wilhelm Schiel, Sigrid |
format |
Doctoral or Postdoctoral Thesis |
author |
Lischka, Silke |
author_facet |
Lischka, Silke |
author_sort |
Lischka, Silke |
title |
Life-history traits of the copepods Pseudocalanus minutus (Calanoida) and Oithona similis (Cyclopoida) in the Arctic Kongsfjorden (Svalbard) with particular emphasis on seasonality |
title_short |
Life-history traits of the copepods Pseudocalanus minutus (Calanoida) and Oithona similis (Cyclopoida) in the Arctic Kongsfjorden (Svalbard) with particular emphasis on seasonality |
title_full |
Life-history traits of the copepods Pseudocalanus minutus (Calanoida) and Oithona similis (Cyclopoida) in the Arctic Kongsfjorden (Svalbard) with particular emphasis on seasonality |
title_fullStr |
Life-history traits of the copepods Pseudocalanus minutus (Calanoida) and Oithona similis (Cyclopoida) in the Arctic Kongsfjorden (Svalbard) with particular emphasis on seasonality |
title_full_unstemmed |
Life-history traits of the copepods Pseudocalanus minutus (Calanoida) and Oithona similis (Cyclopoida) in the Arctic Kongsfjorden (Svalbard) with particular emphasis on seasonality |
title_sort |
life-history traits of the copepods pseudocalanus minutus (calanoida) and oithona similis (cyclopoida) in the arctic kongsfjorden (svalbard) with particular emphasis on seasonality |
publisher |
Universität Bremen |
publishDate |
2006 |
url |
https://media.suub.uni-bremen.de/handle/elib/2313 https://nbn-resolving.org/urn:nbn:de:gbv:46-diss000105636 |
long_lat |
ENVELOPE(29.319,29.319,70.721,70.721) |
geographic |
Arctic Svalbard Kongsfjord |
geographic_facet |
Arctic Svalbard Kongsfjord |
genre |
Arctic Arktis* Kongsfjord* Kongsfjorden Pseudocalanus minutus Svalbard Copepods Spitsbergen |
genre_facet |
Arctic Arktis* Kongsfjord* Kongsfjorden Pseudocalanus minutus Svalbard Copepods Spitsbergen |
op_relation |
https://media.suub.uni-bremen.de/handle/elib/2313 urn:nbn:de:gbv:46-diss000105636 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766325173364981760 |