Jellyfish on the menu: mtDNA assay reveals scyphozoan predation in the Irish Sea

Localized outbreaks of jellyfish, known as blooms, cause a variety of adverse ecological and economic effects. However, fundamental aspects of their ecology remain unknown. Notably, there is scant information on the role jellyfish occupy in food webs: in many ecosystems, few or no predators are know...

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Main Authors: Philip D. Lamb, Ewan Hunter, John K. Pinnegar, Simon Creer, Richard G. Davies, Martin I. Taylor
Format: Article
Language:English
Published: The Royal Society 2017-01-01
Series:Royal Society Open Science
Subjects:
Online Access:https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.171421
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author Philip D. Lamb
Ewan Hunter
John K. Pinnegar
Simon Creer
Richard G. Davies
Martin I. Taylor
author_facet Philip D. Lamb
Ewan Hunter
John K. Pinnegar
Simon Creer
Richard G. Davies
Martin I. Taylor
author_sort Philip D. Lamb
collection DOAJ
description Localized outbreaks of jellyfish, known as blooms, cause a variety of adverse ecological and economic effects. However, fundamental aspects of their ecology remain unknown. Notably, there is scant information on the role jellyfish occupy in food webs: in many ecosystems, few or no predators are known. To identify jellyfish consumers in the Irish Sea, we conducted a molecular gut content assessment of 50 potential predators using cnidarian-specific mtDNA primers and sequencing. We show that jellyfish predation may be more common than previously acknowledged: uncovering many previously unknown jellyfish predators. A substantial proportion of herring and whiting were found to have consumed jellyfish. Rare ingestion was also detected in a variety of other species. Given the phenology of jellyfish in the region, we suggest that the predation was probably targeting juvenile stages of the jellyfish life cycle.
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spelling doaj.art-267b796dfa2440f48c51aa0cbe8ad1d62022-12-22T00:12:48ZengThe Royal SocietyRoyal Society Open Science2054-57032017-01-0141110.1098/rsos.171421171421Jellyfish on the menu: mtDNA assay reveals scyphozoan predation in the Irish SeaPhilip D. LambEwan HunterJohn K. PinnegarSimon CreerRichard G. DaviesMartin I. TaylorLocalized outbreaks of jellyfish, known as blooms, cause a variety of adverse ecological and economic effects. However, fundamental aspects of their ecology remain unknown. Notably, there is scant information on the role jellyfish occupy in food webs: in many ecosystems, few or no predators are known. To identify jellyfish consumers in the Irish Sea, we conducted a molecular gut content assessment of 50 potential predators using cnidarian-specific mtDNA primers and sequencing. We show that jellyfish predation may be more common than previously acknowledged: uncovering many previously unknown jellyfish predators. A substantial proportion of herring and whiting were found to have consumed jellyfish. Rare ingestion was also detected in a variety of other species. Given the phenology of jellyfish in the region, we suggest that the predation was probably targeting juvenile stages of the jellyfish life cycle.https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.171421jellyfishdietgut content analysispredation16s mtdna
spellingShingle Philip D. Lamb
Ewan Hunter
John K. Pinnegar
Simon Creer
Richard G. Davies
Martin I. Taylor
Jellyfish on the menu: mtDNA assay reveals scyphozoan predation in the Irish Sea
Royal Society Open Science
jellyfish
diet
gut content analysis
predation
16s mtdna
title Jellyfish on the menu: mtDNA assay reveals scyphozoan predation in the Irish Sea
title_full Jellyfish on the menu: mtDNA assay reveals scyphozoan predation in the Irish Sea
title_fullStr Jellyfish on the menu: mtDNA assay reveals scyphozoan predation in the Irish Sea
title_full_unstemmed Jellyfish on the menu: mtDNA assay reveals scyphozoan predation in the Irish Sea
title_short Jellyfish on the menu: mtDNA assay reveals scyphozoan predation in the Irish Sea
title_sort jellyfish on the menu mtdna assay reveals scyphozoan predation in the irish sea
topic jellyfish
diet
gut content analysis
predation
16s mtdna
url https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.171421
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