Addressing the aquatic vertebrate community of Vågsfjorden 2019 with the use of Environmental DNA
In order to estimate biodiversity or do species counts, detramental techniques such as trawling or longlining have been used. Lately techniques used to monitor, such as baited remote underwater video systems and environmental DNA have been tested as possible methods to investigate species richness a...
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UiT Norges arktiske universitet
2020
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ftunivtroemsoe:oai:munin.uit.no:10037/19094 2023-05-15T16:19:06+02:00 Addressing the aquatic vertebrate community of Vågsfjorden 2019 with the use of Environmental DNA Mikalsen, Simeon Jonatan 2020-05-15 https://hdl.handle.net/10037/19094 eng eng UiT Norges arktiske universitet UiT The Arctic University of Norway https://hdl.handle.net/10037/19094 openAccess Copyright 2020 The Author(s) VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 eDNA Vågsfjorden Biodiversity Species richness BIO-3950 Master thesis Mastergradsoppgave 2020 ftunivtroemsoe 2021-06-25T17:57:37Z In order to estimate biodiversity or do species counts, detramental techniques such as trawling or longlining have been used. Lately techniques used to monitor, such as baited remote underwater video systems and environmental DNA have been tested as possible methods to investigate species richness and abundance, the latter which will be used in this thesis. Using eDNA methodology, a northern Norwegian fjord was investigated in order to detect the species richness throughout a year at two depths. In addition, an attempt was made to explain the variation of eDNA reads by correlating it to biotic and abiotic factors. The fjord showed presence of 40 different taxonomical units (MOTUs). The fish community were unevenly distributed, where a few MOTUs (Pollachius virens, Hippoglossus sp., Gadus morhua, Salmo salar, and Molva molva) were present most dates in both depths throughout the year. On contrast 19 MOTUs were present one to three times throughout the year, where 12 MOTUs were detected only once. The spring season contained more species and higher numbers of eDNA than the rest of the year. This might have been as animals gathered in order to predate upon either spawning Gadus morhua, their eggs, or to graze on the increased primary production during this period. The 20m samples and 350m samples were more similar during the spring turnover period, but it is hard to say if this is a factor of turnover, as high numbers of reads were also associated with this period indicating a higher amount of biomass in total. The use of eDNA succeeded in providing a picture of the Vågsfjorden biodiversity. For very numerous animals the method was applicable to associate with biological traits, but not for rarer animals. Master Thesis Gadus morhua Salmo salar Vågsfjorden University of Tromsø: Munin Open Research Archive Vågsfjorden ENVELOPE(16.903,16.903,68.866,68.866) |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 eDNA Vågsfjorden Biodiversity Species richness BIO-3950 |
spellingShingle |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 eDNA Vågsfjorden Biodiversity Species richness BIO-3950 Mikalsen, Simeon Jonatan Addressing the aquatic vertebrate community of Vågsfjorden 2019 with the use of Environmental DNA |
topic_facet |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Ecology: 488 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 eDNA Vågsfjorden Biodiversity Species richness BIO-3950 |
description |
In order to estimate biodiversity or do species counts, detramental techniques such as trawling or longlining have been used. Lately techniques used to monitor, such as baited remote underwater video systems and environmental DNA have been tested as possible methods to investigate species richness and abundance, the latter which will be used in this thesis. Using eDNA methodology, a northern Norwegian fjord was investigated in order to detect the species richness throughout a year at two depths. In addition, an attempt was made to explain the variation of eDNA reads by correlating it to biotic and abiotic factors. The fjord showed presence of 40 different taxonomical units (MOTUs). The fish community were unevenly distributed, where a few MOTUs (Pollachius virens, Hippoglossus sp., Gadus morhua, Salmo salar, and Molva molva) were present most dates in both depths throughout the year. On contrast 19 MOTUs were present one to three times throughout the year, where 12 MOTUs were detected only once. The spring season contained more species and higher numbers of eDNA than the rest of the year. This might have been as animals gathered in order to predate upon either spawning Gadus morhua, their eggs, or to graze on the increased primary production during this period. The 20m samples and 350m samples were more similar during the spring turnover period, but it is hard to say if this is a factor of turnover, as high numbers of reads were also associated with this period indicating a higher amount of biomass in total. The use of eDNA succeeded in providing a picture of the Vågsfjorden biodiversity. For very numerous animals the method was applicable to associate with biological traits, but not for rarer animals. |
format |
Master Thesis |
author |
Mikalsen, Simeon Jonatan |
author_facet |
Mikalsen, Simeon Jonatan |
author_sort |
Mikalsen, Simeon Jonatan |
title |
Addressing the aquatic vertebrate community of Vågsfjorden 2019 with the use of Environmental DNA |
title_short |
Addressing the aquatic vertebrate community of Vågsfjorden 2019 with the use of Environmental DNA |
title_full |
Addressing the aquatic vertebrate community of Vågsfjorden 2019 with the use of Environmental DNA |
title_fullStr |
Addressing the aquatic vertebrate community of Vågsfjorden 2019 with the use of Environmental DNA |
title_full_unstemmed |
Addressing the aquatic vertebrate community of Vågsfjorden 2019 with the use of Environmental DNA |
title_sort |
addressing the aquatic vertebrate community of vågsfjorden 2019 with the use of environmental dna |
publisher |
UiT Norges arktiske universitet |
publishDate |
2020 |
url |
https://hdl.handle.net/10037/19094 |
long_lat |
ENVELOPE(16.903,16.903,68.866,68.866) |
geographic |
Vågsfjorden |
geographic_facet |
Vågsfjorden |
genre |
Gadus morhua Salmo salar Vågsfjorden |
genre_facet |
Gadus morhua Salmo salar Vågsfjorden |
op_relation |
https://hdl.handle.net/10037/19094 |
op_rights |
openAccess Copyright 2020 The Author(s) |
_version_ |
1766005433807405056 |