Comparative effects of two temperatures (0 & 3 °C) on Polar cod embryonic and larval development
Polar cod (Boreogadus saida) are particularly vulnerable to climate change. Increasing our knowledge of polar cod development will help improve our understanding of the impact of climate change and the impacts this might have on the population. This study aimed at characterizing the development of P...
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UiT Norges arktiske universitet
2019
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Online Access: | https://hdl.handle.net/10037/16941 |
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ftunivtroemsoe:oai:munin.uit.no:10037/16941 2023-05-15T15:09:51+02:00 Comparative effects of two temperatures (0 & 3 °C) on Polar cod embryonic and larval development Jones, Connie 2019-11-14 https://hdl.handle.net/10037/16941 eng eng UiT Norges arktiske universitet UiT The Arctic University of Norway https://hdl.handle.net/10037/16941 openAccess Copyright 2019 The Author(s) VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fish health: 923 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Fiskehelse: 923 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Other fisheries disciplines: 929 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Andre fiskerifag: 929 BIO-3950 Master thesis Mastergradsoppgave 2019 ftunivtroemsoe 2021-06-25T17:57:01Z Polar cod (Boreogadus saida) are particularly vulnerable to climate change. Increasing our knowledge of polar cod development will help improve our understanding of the impact of climate change and the impacts this might have on the population. This study aimed at characterizing the development of Polar cod from fertilisation to 86 days post fertilisation (dpf) at two temperatures within their biological tolerance (0 & 3 °C) in order to determine the thermal response during early life histories. Adult polar cod were wild caught from Svalbard waters, stripped and artificially fertilised. The present study found that the larvae incubated at 0 °C experienced less mortality, greater hatching success and a larger size at hatch and during early feeding than 3 °C larvae. However the larvae had a slower feeding initiation, a lower feeding success. In regards to the results of this study 0 °C treatment provided the ideal conditions for survival. However polar cod early life development might benefit from a slightly warmer Arctic from faster development leading to less time spent as vulnerable larvae resulting in better juvenile recruitment. However under accelerated temperatures the temperature optimum may be exceeded and larvae will experience significantly negative biological and environmental consequences. Master Thesis Arctic Boreogadus saida Climate change polar cod Svalbard University of Tromsø: Munin Open Research Archive Arctic Svalbard |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fish health: 923 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Fiskehelse: 923 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Other fisheries disciplines: 929 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Andre fiskerifag: 929 BIO-3950 |
spellingShingle |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fish health: 923 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Fiskehelse: 923 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Other fisheries disciplines: 929 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Andre fiskerifag: 929 BIO-3950 Jones, Connie Comparative effects of two temperatures (0 & 3 °C) on Polar cod embryonic and larval development |
topic_facet |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fish health: 923 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Fiskehelse: 923 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Other fisheries disciplines: 929 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Andre fiskerifag: 929 BIO-3950 |
description |
Polar cod (Boreogadus saida) are particularly vulnerable to climate change. Increasing our knowledge of polar cod development will help improve our understanding of the impact of climate change and the impacts this might have on the population. This study aimed at characterizing the development of Polar cod from fertilisation to 86 days post fertilisation (dpf) at two temperatures within their biological tolerance (0 & 3 °C) in order to determine the thermal response during early life histories. Adult polar cod were wild caught from Svalbard waters, stripped and artificially fertilised. The present study found that the larvae incubated at 0 °C experienced less mortality, greater hatching success and a larger size at hatch and during early feeding than 3 °C larvae. However the larvae had a slower feeding initiation, a lower feeding success. In regards to the results of this study 0 °C treatment provided the ideal conditions for survival. However polar cod early life development might benefit from a slightly warmer Arctic from faster development leading to less time spent as vulnerable larvae resulting in better juvenile recruitment. However under accelerated temperatures the temperature optimum may be exceeded and larvae will experience significantly negative biological and environmental consequences. |
format |
Master Thesis |
author |
Jones, Connie |
author_facet |
Jones, Connie |
author_sort |
Jones, Connie |
title |
Comparative effects of two temperatures (0 & 3 °C) on Polar cod embryonic and larval development |
title_short |
Comparative effects of two temperatures (0 & 3 °C) on Polar cod embryonic and larval development |
title_full |
Comparative effects of two temperatures (0 & 3 °C) on Polar cod embryonic and larval development |
title_fullStr |
Comparative effects of two temperatures (0 & 3 °C) on Polar cod embryonic and larval development |
title_full_unstemmed |
Comparative effects of two temperatures (0 & 3 °C) on Polar cod embryonic and larval development |
title_sort |
comparative effects of two temperatures (0 & 3 °c) on polar cod embryonic and larval development |
publisher |
UiT Norges arktiske universitet |
publishDate |
2019 |
url |
https://hdl.handle.net/10037/16941 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Boreogadus saida Climate change polar cod Svalbard |
genre_facet |
Arctic Boreogadus saida Climate change polar cod Svalbard |
op_relation |
https://hdl.handle.net/10037/16941 |
op_rights |
openAccess Copyright 2019 The Author(s) |
_version_ |
1766340962928295936 |