Alternative prey choice in the pteropod Clione limacina (Gastropoda) studied by DNA-based methods
The gymnosome pteropod Clione limacina is regarded as a monophagous predator, feeding exclusively on the thecosome pteropod Limacina helicina in Arctic waters. C. limacina is adapted to survive periods of low food availability by long-term starvation. Although L. helicina is absent from the water, a...
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UiT Norges arktiske universitet
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ftunivtroemsoe:oai:munin.uit.no:10037/5858 2023-05-15T15:08:51+02:00 Alternative prey choice in the pteropod Clione limacina (Gastropoda) studied by DNA-based methods Kallevik, Ida Helene Funderud 2013-11-15 https://hdl.handle.net/10037/5858 eng eng UiT Norges arktiske universitet UiT The Arctic University of Norway https://hdl.handle.net/10037/5858 URN:NBN:no-uit_munin_5555 openAccess Copyright 2013 The Author(s) VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 BIO-3950 Master thesis Mastergradsoppgave 2013 ftunivtroemsoe 2021-06-25T17:53:47Z The gymnosome pteropod Clione limacina is regarded as a monophagous predator, feeding exclusively on the thecosome pteropod Limacina helicina in Arctic waters. C. limacina is adapted to survive periods of low food availability by long-term starvation. Although L. helicina is absent from the water, a number of other zooplankton species are present during this time. It may therefore seem surprising that C. limacina does not take advantage of these other food sources at times when their main prey is absent. DNA- based approaches have never been used to investigate C. limacina feeding habits previously. In this study, group-specific primers were used to analyse stomach content DNA in C. limacina. This is the first study to report that C. limacina feed on other types of prey than L. helicina. The traces of amphipod and calanoid DNA were positively identified by sequencing, suggesting that C. limacina is in fact a polyphagous predator. Predation on alternative prey may enable C. limacina to survive longer time periods of food scarcity. With L. helicina being susceptible to ocean acidification, utilising alternative prey may allow the continued existence of C. limacina if L. helicina populations decline. Master Thesis Arctic Clione limacina Limacina helicina Ocean acidification Zooplankton University of Tromsø: Munin Open Research Archive Arctic |
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Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
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ftunivtroemsoe |
language |
English |
topic |
VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 BIO-3950 |
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VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 BIO-3950 Kallevik, Ida Helene Funderud Alternative prey choice in the pteropod Clione limacina (Gastropoda) studied by DNA-based methods |
topic_facet |
VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 BIO-3950 |
description |
The gymnosome pteropod Clione limacina is regarded as a monophagous predator, feeding exclusively on the thecosome pteropod Limacina helicina in Arctic waters. C. limacina is adapted to survive periods of low food availability by long-term starvation. Although L. helicina is absent from the water, a number of other zooplankton species are present during this time. It may therefore seem surprising that C. limacina does not take advantage of these other food sources at times when their main prey is absent. DNA- based approaches have never been used to investigate C. limacina feeding habits previously. In this study, group-specific primers were used to analyse stomach content DNA in C. limacina. This is the first study to report that C. limacina feed on other types of prey than L. helicina. The traces of amphipod and calanoid DNA were positively identified by sequencing, suggesting that C. limacina is in fact a polyphagous predator. Predation on alternative prey may enable C. limacina to survive longer time periods of food scarcity. With L. helicina being susceptible to ocean acidification, utilising alternative prey may allow the continued existence of C. limacina if L. helicina populations decline. |
format |
Master Thesis |
author |
Kallevik, Ida Helene Funderud |
author_facet |
Kallevik, Ida Helene Funderud |
author_sort |
Kallevik, Ida Helene Funderud |
title |
Alternative prey choice in the pteropod Clione limacina (Gastropoda) studied by DNA-based methods |
title_short |
Alternative prey choice in the pteropod Clione limacina (Gastropoda) studied by DNA-based methods |
title_full |
Alternative prey choice in the pteropod Clione limacina (Gastropoda) studied by DNA-based methods |
title_fullStr |
Alternative prey choice in the pteropod Clione limacina (Gastropoda) studied by DNA-based methods |
title_full_unstemmed |
Alternative prey choice in the pteropod Clione limacina (Gastropoda) studied by DNA-based methods |
title_sort |
alternative prey choice in the pteropod clione limacina (gastropoda) studied by dna-based methods |
publisher |
UiT Norges arktiske universitet |
publishDate |
2013 |
url |
https://hdl.handle.net/10037/5858 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Clione limacina Limacina helicina Ocean acidification Zooplankton |
genre_facet |
Arctic Clione limacina Limacina helicina Ocean acidification Zooplankton |
op_relation |
https://hdl.handle.net/10037/5858 URN:NBN:no-uit_munin_5555 |
op_rights |
openAccess Copyright 2013 The Author(s) |
_version_ |
1766340135582957568 |