Quantitative molecular detection of larval Atlantic herring (Clupea harengus) in stomach contents of Atlantic mackerel (Scomber scombrus) marks regions of predation pressure
Abstract Mortality rates in the early life-history stages of fishes are generally high yet identifying the causes remain unclear. Faltering recruitment rates of Atlantic herring ( Clupea harengus ) in the Norwegian Sea indicate a need to identify which mortality factors influence larval herring surv...
Published in: | Scientific Reports |
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Springer Science and Business Media LLC
2021
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Online Access: | http://dx.doi.org/10.1038/s41598-021-84545-7 http://www.nature.com/articles/s41598-021-84545-7.pdf http://www.nature.com/articles/s41598-021-84545-7 |
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crspringernat:10.1038/s41598-021-84545-7 2023-05-15T17:47:06+02:00 Quantitative molecular detection of larval Atlantic herring (Clupea harengus) in stomach contents of Atlantic mackerel (Scomber scombrus) marks regions of predation pressure Allan, Bridie Jean Marie Ray, Jessica Louise Tiedemann, Maik Komyakova, Valeriya Vikebø, Frode Skaar, Katrine Sandnes Stiasny, Martina H. Folkvord, Arild Nash, Richard D. M. Stenevik, Erling Kåre Kjesbu, Olav Sigurd Norwegian Fisheries Research Sales Tax System IMR Research Program Marine Processes and Human Impacts 2021 http://dx.doi.org/10.1038/s41598-021-84545-7 http://www.nature.com/articles/s41598-021-84545-7.pdf http://www.nature.com/articles/s41598-021-84545-7 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Scientific Reports volume 11, issue 1 ISSN 2045-2322 Multidisciplinary journal-article 2021 crspringernat https://doi.org/10.1038/s41598-021-84545-7 2022-01-04T10:14:55Z Abstract Mortality rates in the early life-history stages of fishes are generally high yet identifying the causes remain unclear. Faltering recruitment rates of Atlantic herring ( Clupea harengus ) in the Norwegian Sea indicate a need to identify which mortality factors influence larval herring survival. Previous research suggests that increased predation pressure by Atlantic mackerel ( Scomber scombrus) may contribute to the disconnect between spawning stock biomass and recruitment. To quantify the contribution of predation pressure by Atlantic mackerel to herring larval mortality, two research cruises were conducted within a probable “hot spot” (67–72° N) for intensified mackerel predation based on particle drift simulations. Mackerel stomach contents were analysed for herring larvae content using droplet digital polymerase chain reaction (ddPCR) with a quantitative molecular detection assay specific for herring. The ddPCR results demonstrate clear predation by mackerel on herring larvae and also suggest that the alternative use of visual examination may give misleading results. Our results show that mackerel should be considered a potentially important predator on herring larvae. The quantitative molecular assay presented here shows great promise as an efficient and specific tool to correctly identify and quantify predation pressure on early life-history stages of fishes. Article in Journal/Newspaper Norwegian Sea Springer Nature (via Crossref) Norwegian Sea Scientific Reports 11 1 |
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Open Polar |
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Springer Nature (via Crossref) |
op_collection_id |
crspringernat |
language |
English |
topic |
Multidisciplinary |
spellingShingle |
Multidisciplinary Allan, Bridie Jean Marie Ray, Jessica Louise Tiedemann, Maik Komyakova, Valeriya Vikebø, Frode Skaar, Katrine Sandnes Stiasny, Martina H. Folkvord, Arild Nash, Richard D. M. Stenevik, Erling Kåre Kjesbu, Olav Sigurd Quantitative molecular detection of larval Atlantic herring (Clupea harengus) in stomach contents of Atlantic mackerel (Scomber scombrus) marks regions of predation pressure |
topic_facet |
Multidisciplinary |
description |
Abstract Mortality rates in the early life-history stages of fishes are generally high yet identifying the causes remain unclear. Faltering recruitment rates of Atlantic herring ( Clupea harengus ) in the Norwegian Sea indicate a need to identify which mortality factors influence larval herring survival. Previous research suggests that increased predation pressure by Atlantic mackerel ( Scomber scombrus) may contribute to the disconnect between spawning stock biomass and recruitment. To quantify the contribution of predation pressure by Atlantic mackerel to herring larval mortality, two research cruises were conducted within a probable “hot spot” (67–72° N) for intensified mackerel predation based on particle drift simulations. Mackerel stomach contents were analysed for herring larvae content using droplet digital polymerase chain reaction (ddPCR) with a quantitative molecular detection assay specific for herring. The ddPCR results demonstrate clear predation by mackerel on herring larvae and also suggest that the alternative use of visual examination may give misleading results. Our results show that mackerel should be considered a potentially important predator on herring larvae. The quantitative molecular assay presented here shows great promise as an efficient and specific tool to correctly identify and quantify predation pressure on early life-history stages of fishes. |
author2 |
Norwegian Fisheries Research Sales Tax System IMR Research Program Marine Processes and Human Impacts |
format |
Article in Journal/Newspaper |
author |
Allan, Bridie Jean Marie Ray, Jessica Louise Tiedemann, Maik Komyakova, Valeriya Vikebø, Frode Skaar, Katrine Sandnes Stiasny, Martina H. Folkvord, Arild Nash, Richard D. M. Stenevik, Erling Kåre Kjesbu, Olav Sigurd |
author_facet |
Allan, Bridie Jean Marie Ray, Jessica Louise Tiedemann, Maik Komyakova, Valeriya Vikebø, Frode Skaar, Katrine Sandnes Stiasny, Martina H. Folkvord, Arild Nash, Richard D. M. Stenevik, Erling Kåre Kjesbu, Olav Sigurd |
author_sort |
Allan, Bridie Jean Marie |
title |
Quantitative molecular detection of larval Atlantic herring (Clupea harengus) in stomach contents of Atlantic mackerel (Scomber scombrus) marks regions of predation pressure |
title_short |
Quantitative molecular detection of larval Atlantic herring (Clupea harengus) in stomach contents of Atlantic mackerel (Scomber scombrus) marks regions of predation pressure |
title_full |
Quantitative molecular detection of larval Atlantic herring (Clupea harengus) in stomach contents of Atlantic mackerel (Scomber scombrus) marks regions of predation pressure |
title_fullStr |
Quantitative molecular detection of larval Atlantic herring (Clupea harengus) in stomach contents of Atlantic mackerel (Scomber scombrus) marks regions of predation pressure |
title_full_unstemmed |
Quantitative molecular detection of larval Atlantic herring (Clupea harengus) in stomach contents of Atlantic mackerel (Scomber scombrus) marks regions of predation pressure |
title_sort |
quantitative molecular detection of larval atlantic herring (clupea harengus) in stomach contents of atlantic mackerel (scomber scombrus) marks regions of predation pressure |
publisher |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
http://dx.doi.org/10.1038/s41598-021-84545-7 http://www.nature.com/articles/s41598-021-84545-7.pdf http://www.nature.com/articles/s41598-021-84545-7 |
geographic |
Norwegian Sea |
geographic_facet |
Norwegian Sea |
genre |
Norwegian Sea |
genre_facet |
Norwegian Sea |
op_source |
Scientific Reports volume 11, issue 1 ISSN 2045-2322 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41598-021-84545-7 |
container_title |
Scientific Reports |
container_volume |
11 |
container_issue |
1 |
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1766151409835704320 |