Monitoring the pink salmon invasion in Tana using eDNA. Assessment of pink salmon, Atlantic salmon and European bullhead
Fossøy, F., Erkinaro, J., Orell, P., Pohjola, J.-P., Brandsegg, H., Andersskog, I.P.Ø. & Sivertsgård, R. 2022. Monitoring the pink salmon invasion in Tana using eDNA. Assessment of pink salmon, Atlantic salmon and European bullhead. NINA Report 2213. Norwegian Institute for Nature Research. Huma...
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ftninstnf:oai:brage.nina.no:11250/3036089 2023-05-15T15:30:53+02:00 Monitoring the pink salmon invasion in Tana using eDNA. Assessment of pink salmon, Atlantic salmon and European bullhead Fossøy, Frode Erkinaro, Jaako Orell, Panu Pohjola, Jan-Peter Brandsegg, Hege Andersskog, Ida Pernille Øystese Sivertsgård, Rolf Norway, Finnmark, Tana 2022 application/pdf https://hdl.handle.net/11250/3036089 eng eng Norwegian Institute for Nature Research (NINA) NINA Report;2213 urn:isbn:978-82-426-5008-5 urn:issn:1504-3312 https://hdl.handle.net/11250/3036089 © Norwegian Institute for Nature Research. The publication may be freely cited where the source is acknowledged 23 pink salmon pukkellaks fish fisk invasive species fremmede arter monitoring overvåking eDNA qPCR ddPCR Research report 2022 ftninstnf 2023-02-01T23:45:43Z Fossøy, F., Erkinaro, J., Orell, P., Pohjola, J.-P., Brandsegg, H., Andersskog, I.P.Ø. & Sivertsgård, R. 2022. Monitoring the pink salmon invasion in Tana using eDNA. Assessment of pink salmon, Atlantic salmon and European bullhead. NINA Report 2213. Norwegian Institute for Nature Research. Human introduction of non-native species is a major threat to biodiversity, and early detection is crucial for implementing conservation mitigations. The pink salmon (Oncorhynchus gorbuscha) is originally native to rivers draining to the Pacific ocean, but reports on occurrence of pink salmon in Norway have increased sharply in recent years. Pink salmon is an anadromous species with a two-year life cycle where both males and females die after spawning. In Norway, the odd-year spawners are dominating with large numbers of fish recorded in 2017, 2019 and 2021. Monitoring presence and abundance of pink salmon is crucial for implementing possible mitigation efforts. Analyses of environmental DNA (eDNA) is a new cost-efficient method for detecting rare and invasive species. Here we report the results from eDNA analyses of the river Tana, including 19 localities in 2019 and 24 localities in 2021. The Tana watercourse constitutes the border between northern Finland and Norway and is supporting the largest Atlantic salmon population in Norway. The eDNA analyses detected Atlantic salmon (Salmo salar) in almost all tributaries in both years, with a pronounced higher DNA-concentration in the middle of the watercourse. In 2019, we detected pink salmon in four different tributaries, representing more or less all parts of the watercourse. In 2021, we detected pink salmon in 15 localities, with somewhat higher DNA-concentrations than in 2019, reflecting the observed increase in pink salmon numbers. The eDNA analyses also included another alien species in the Tana system, the European bullhead (Cottus gobio), where detections were constrained to the lower parts of Tana. We conclude that analysis of eDNA water samples is a cost-efficient ... Report Atlantic salmon Finnmark Northern Finland Oncorhynchus gorbuscha Pink salmon Pukkellaks Salmo salar Tana Finnmark Norwegian Institute for Nature Research: Brage NINA Norway Pacific |
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Norwegian Institute for Nature Research: Brage NINA |
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language |
English |
topic |
pink salmon pukkellaks fish fisk invasive species fremmede arter monitoring overvåking eDNA qPCR ddPCR |
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pink salmon pukkellaks fish fisk invasive species fremmede arter monitoring overvåking eDNA qPCR ddPCR Fossøy, Frode Erkinaro, Jaako Orell, Panu Pohjola, Jan-Peter Brandsegg, Hege Andersskog, Ida Pernille Øystese Sivertsgård, Rolf Monitoring the pink salmon invasion in Tana using eDNA. Assessment of pink salmon, Atlantic salmon and European bullhead |
topic_facet |
pink salmon pukkellaks fish fisk invasive species fremmede arter monitoring overvåking eDNA qPCR ddPCR |
description |
Fossøy, F., Erkinaro, J., Orell, P., Pohjola, J.-P., Brandsegg, H., Andersskog, I.P.Ø. & Sivertsgård, R. 2022. Monitoring the pink salmon invasion in Tana using eDNA. Assessment of pink salmon, Atlantic salmon and European bullhead. NINA Report 2213. Norwegian Institute for Nature Research. Human introduction of non-native species is a major threat to biodiversity, and early detection is crucial for implementing conservation mitigations. The pink salmon (Oncorhynchus gorbuscha) is originally native to rivers draining to the Pacific ocean, but reports on occurrence of pink salmon in Norway have increased sharply in recent years. Pink salmon is an anadromous species with a two-year life cycle where both males and females die after spawning. In Norway, the odd-year spawners are dominating with large numbers of fish recorded in 2017, 2019 and 2021. Monitoring presence and abundance of pink salmon is crucial for implementing possible mitigation efforts. Analyses of environmental DNA (eDNA) is a new cost-efficient method for detecting rare and invasive species. Here we report the results from eDNA analyses of the river Tana, including 19 localities in 2019 and 24 localities in 2021. The Tana watercourse constitutes the border between northern Finland and Norway and is supporting the largest Atlantic salmon population in Norway. The eDNA analyses detected Atlantic salmon (Salmo salar) in almost all tributaries in both years, with a pronounced higher DNA-concentration in the middle of the watercourse. In 2019, we detected pink salmon in four different tributaries, representing more or less all parts of the watercourse. In 2021, we detected pink salmon in 15 localities, with somewhat higher DNA-concentrations than in 2019, reflecting the observed increase in pink salmon numbers. The eDNA analyses also included another alien species in the Tana system, the European bullhead (Cottus gobio), where detections were constrained to the lower parts of Tana. We conclude that analysis of eDNA water samples is a cost-efficient ... |
format |
Report |
author |
Fossøy, Frode Erkinaro, Jaako Orell, Panu Pohjola, Jan-Peter Brandsegg, Hege Andersskog, Ida Pernille Øystese Sivertsgård, Rolf |
author_facet |
Fossøy, Frode Erkinaro, Jaako Orell, Panu Pohjola, Jan-Peter Brandsegg, Hege Andersskog, Ida Pernille Øystese Sivertsgård, Rolf |
author_sort |
Fossøy, Frode |
title |
Monitoring the pink salmon invasion in Tana using eDNA. Assessment of pink salmon, Atlantic salmon and European bullhead |
title_short |
Monitoring the pink salmon invasion in Tana using eDNA. Assessment of pink salmon, Atlantic salmon and European bullhead |
title_full |
Monitoring the pink salmon invasion in Tana using eDNA. Assessment of pink salmon, Atlantic salmon and European bullhead |
title_fullStr |
Monitoring the pink salmon invasion in Tana using eDNA. Assessment of pink salmon, Atlantic salmon and European bullhead |
title_full_unstemmed |
Monitoring the pink salmon invasion in Tana using eDNA. Assessment of pink salmon, Atlantic salmon and European bullhead |
title_sort |
monitoring the pink salmon invasion in tana using edna. assessment of pink salmon, atlantic salmon and european bullhead |
publisher |
Norwegian Institute for Nature Research (NINA) |
publishDate |
2022 |
url |
https://hdl.handle.net/11250/3036089 |
op_coverage |
Norway, Finnmark, Tana |
geographic |
Norway Pacific |
geographic_facet |
Norway Pacific |
genre |
Atlantic salmon Finnmark Northern Finland Oncorhynchus gorbuscha Pink salmon Pukkellaks Salmo salar Tana Finnmark |
genre_facet |
Atlantic salmon Finnmark Northern Finland Oncorhynchus gorbuscha Pink salmon Pukkellaks Salmo salar Tana Finnmark |
op_source |
23 |
op_relation |
NINA Report;2213 urn:isbn:978-82-426-5008-5 urn:issn:1504-3312 https://hdl.handle.net/11250/3036089 |
op_rights |
© Norwegian Institute for Nature Research. The publication may be freely cited where the source is acknowledged |
_version_ |
1766361356258246656 |