Quantitative molecular detection of larval Atlantic herring (Clupea harengus) in stomach contents of Atlantic mackerel (Scomber scombrus) marks regions of predation pressure
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. Previ...
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ftunivtasmania:oai:eprints.utas.edu.au:42481 2023-05-15T17:47:05+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, BJM Ray, JL Tiedemann, M Komyakova, V Vikebo, F Skaar, KS Stiasny, MH Folkvord, A Nash, RDM Stenevik, EK Kjesbu, OS 2021 application/pdf https://eprints.utas.edu.au/42481/ https://eprints.utas.edu.au/42481/1/143212%20-%20Quantitative%20molecular%20detection%20of%20larval%20Atlantic%20herring.pdf en eng Nature Publishing Group https://eprints.utas.edu.au/42481/1/143212%20-%20Quantitative%20molecular%20detection%20of%20larval%20Atlantic%20herring.pdf Allan, BJM, Ray, JL, Tiedemann, M, Komyakova, V orcid:0000-0003-3755-1546 , Vikebo, F, Skaar, KS, Stiasny, MH, Folkvord, A, Nash, RDM, Stenevik, EK and Kjesbu, OS 2021 , 'Quantitative molecular detection of larval Atlantic herring (Clupea harengus) in stomach contents of Atlantic mackerel (Scomber scombrus) marks regions of predation pressure' , Scientific Reports, vol. 11 , pp. 1-11 , doi:10.1038/s41598-021-84545-7 <http://dx.doi.org/10.1038/s41598-021-84545-7>. predation Atlantic herring Atlantic mackerel molecular detection Article PeerReviewed 2021 ftunivtasmania https://doi.org/10.1038/s41598-021-84545-7 2022-02-07T23:18:48Z 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 University of Tasmania: UTas ePrints Norwegian Sea Scientific Reports 11 1 |
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Open Polar |
collection |
University of Tasmania: UTas ePrints |
op_collection_id |
ftunivtasmania |
language |
English |
topic |
predation Atlantic herring Atlantic mackerel molecular detection |
spellingShingle |
predation Atlantic herring Atlantic mackerel molecular detection Allan, BJM Ray, JL Tiedemann, M Komyakova, V Vikebo, F Skaar, KS Stiasny, MH Folkvord, A Nash, RDM Stenevik, EK Kjesbu, OS Quantitative molecular detection of larval Atlantic herring (Clupea harengus) in stomach contents of Atlantic mackerel (Scomber scombrus) marks regions of predation pressure |
topic_facet |
predation Atlantic herring Atlantic mackerel molecular detection |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Allan, BJM Ray, JL Tiedemann, M Komyakova, V Vikebo, F Skaar, KS Stiasny, MH Folkvord, A Nash, RDM Stenevik, EK Kjesbu, OS |
author_facet |
Allan, BJM Ray, JL Tiedemann, M Komyakova, V Vikebo, F Skaar, KS Stiasny, MH Folkvord, A Nash, RDM Stenevik, EK Kjesbu, OS |
author_sort |
Allan, BJM |
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 |
Nature Publishing Group |
publishDate |
2021 |
url |
https://eprints.utas.edu.au/42481/ https://eprints.utas.edu.au/42481/1/143212%20-%20Quantitative%20molecular%20detection%20of%20larval%20Atlantic%20herring.pdf |
geographic |
Norwegian Sea |
geographic_facet |
Norwegian Sea |
genre |
Norwegian Sea |
genre_facet |
Norwegian Sea |
op_relation |
https://eprints.utas.edu.au/42481/1/143212%20-%20Quantitative%20molecular%20detection%20of%20larval%20Atlantic%20herring.pdf Allan, BJM, Ray, JL, Tiedemann, M, Komyakova, V orcid:0000-0003-3755-1546 , Vikebo, F, Skaar, KS, Stiasny, MH, Folkvord, A, Nash, RDM, Stenevik, EK and Kjesbu, OS 2021 , 'Quantitative molecular detection of larval Atlantic herring (Clupea harengus) in stomach contents of Atlantic mackerel (Scomber scombrus) marks regions of predation pressure' , Scientific Reports, vol. 11 , pp. 1-11 , doi:10.1038/s41598-021-84545-7 <http://dx.doi.org/10.1038/s41598-021-84545-7>. |
op_doi |
https://doi.org/10.1038/s41598-021-84545-7 |
container_title |
Scientific Reports |
container_volume |
11 |
container_issue |
1 |
_version_ |
1766151403293638656 |