Gelatinous plankton is important in the diet of European eel (Anguilla anguilla) larvae in the Sargasso Sea

Daniel Jiro Ayala, Peter Munk, Rebekka Laura Lundgreen, Sachia Jo Traving, Cornelia Jaspers, Tue Sparholt Jørgensen, Lars Hansen, Lasse Riemann

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

Limited insight into eel larvae feeding and diet prevents a holistic overview of the life-cycle of catadromous eels and an understanding of the ecological position of their early stages in marine waters. The present study evaluated the diet of larval European eel, Anguilla anguilla - a critically endangered species. Next-generation 18S rRNA gene sequencing data of Sargasso Sea eel larvae gut contents and marine snow aggregates was compared with a reference plankton database to assess the trophic relations of eel larvae. Gut contents of A. anguilla larvae were not well explained by the eukaryotic composition of marine snow aggregates; gut contents being dominated by gene sequences of Hydrozoa taxa (phylum Cnidaria), while snow aggregates were dominated by Crustacea taxa. Pronounced differences between gut contents and marine snow aggregates were also seen in the prokaryotic 16S rRNA gene composition. The findings, in concert with significant abundances of Hydrozoa in the study area, suggest that Hydrozoa plankton are important in the diet of A. anguilla larvae, and that consideration of these organisms would further our understanding of A. anguilla feeding strategies in the oligotrophic Sargasso Sea, which may be important for potential future rearing of A. anguilla larvae in captivity.
OriginalsprogEngelsk
Artikelnummer6156
TidsskriftScientific Reports
Vol/bind8
ISSN2045-2322
DOI
StatusUdgivet - 2018

Citer dette

Ayala, D. J., Munk, P., Lundgreen, R. L., Traving, S. J., Jaspers, C., Jørgensen, T. S., ... Riemann, L. (2018). Gelatinous plankton is important in the diet of European eel (Anguilla anguilla) larvae in the Sargasso Sea. Scientific Reports, 8, [6156]. https://doi.org/10.1038/s41598-018-24388-x
Ayala, Daniel Jiro ; Munk, Peter ; Lundgreen, Rebekka Laura ; Traving, Sachia Jo ; Jaspers, Cornelia ; Jørgensen, Tue Sparholt ; Hansen, Lars ; Riemann, Lasse. / Gelatinous plankton is important in the diet of European eel (Anguilla anguilla) larvae in the Sargasso Sea. I: Scientific Reports. 2018 ; Bind 8.
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title = "Gelatinous plankton is important in the diet of European eel (Anguilla anguilla) larvae in the Sargasso Sea",
abstract = "Limited insight into eel larvae feeding and diet prevents a holistic overview of the life-cycle of catadromous eels and an understanding of the ecological position of their early stages in marine waters. The present study evaluated the diet of larval European eel, Anguilla anguilla - a critically endangered species. Next-generation 18S rRNA gene sequencing data of Sargasso Sea eel larvae gut contents and marine snow aggregates was compared with a reference plankton database to assess the trophic relations of eel larvae. Gut contents of A. anguilla larvae were not well explained by the eukaryotic composition of marine snow aggregates; gut contents being dominated by gene sequences of Hydrozoa taxa (phylum Cnidaria), while snow aggregates were dominated by Crustacea taxa. Pronounced differences between gut contents and marine snow aggregates were also seen in the prokaryotic 16S rRNA gene composition. The findings, in concert with significant abundances of Hydrozoa in the study area, suggest that Hydrozoa plankton are important in the diet of A. anguilla larvae, and that consideration of these organisms would further our understanding of A. anguilla feeding strategies in the oligotrophic Sargasso Sea, which may be important for potential future rearing of A. anguilla larvae in captivity.",
author = "Ayala, {Daniel Jiro} and Peter Munk and Lundgreen, {Rebekka Laura} and Traving, {Sachia Jo} and Cornelia Jaspers and J{\o}rgensen, {Tue Sparholt} and Lars Hansen and Lasse Riemann",
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doi = "10.1038/s41598-018-24388-x",
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Ayala, DJ, Munk, P, Lundgreen, RL, Traving, SJ, Jaspers, C, Jørgensen, TS, Hansen, L & Riemann, L 2018, 'Gelatinous plankton is important in the diet of European eel (Anguilla anguilla) larvae in the Sargasso Sea', Scientific Reports, bind 8, 6156. https://doi.org/10.1038/s41598-018-24388-x

Gelatinous plankton is important in the diet of European eel (Anguilla anguilla) larvae in the Sargasso Sea. / Ayala, Daniel Jiro; Munk, Peter; Lundgreen, Rebekka Laura; Traving, Sachia Jo; Jaspers, Cornelia; Jørgensen, Tue Sparholt; Hansen, Lars; Riemann, Lasse.

I: Scientific Reports, Bind 8, 6156, 2018.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Gelatinous plankton is important in the diet of European eel (Anguilla anguilla) larvae in the Sargasso Sea

AU - Ayala, Daniel Jiro

AU - Munk, Peter

AU - Lundgreen, Rebekka Laura

AU - Traving, Sachia Jo

AU - Jaspers, Cornelia

AU - Jørgensen, Tue Sparholt

AU - Hansen, Lars

AU - Riemann, Lasse

PY - 2018

Y1 - 2018

N2 - Limited insight into eel larvae feeding and diet prevents a holistic overview of the life-cycle of catadromous eels and an understanding of the ecological position of their early stages in marine waters. The present study evaluated the diet of larval European eel, Anguilla anguilla - a critically endangered species. Next-generation 18S rRNA gene sequencing data of Sargasso Sea eel larvae gut contents and marine snow aggregates was compared with a reference plankton database to assess the trophic relations of eel larvae. Gut contents of A. anguilla larvae were not well explained by the eukaryotic composition of marine snow aggregates; gut contents being dominated by gene sequences of Hydrozoa taxa (phylum Cnidaria), while snow aggregates were dominated by Crustacea taxa. Pronounced differences between gut contents and marine snow aggregates were also seen in the prokaryotic 16S rRNA gene composition. The findings, in concert with significant abundances of Hydrozoa in the study area, suggest that Hydrozoa plankton are important in the diet of A. anguilla larvae, and that consideration of these organisms would further our understanding of A. anguilla feeding strategies in the oligotrophic Sargasso Sea, which may be important for potential future rearing of A. anguilla larvae in captivity.

AB - Limited insight into eel larvae feeding and diet prevents a holistic overview of the life-cycle of catadromous eels and an understanding of the ecological position of their early stages in marine waters. The present study evaluated the diet of larval European eel, Anguilla anguilla - a critically endangered species. Next-generation 18S rRNA gene sequencing data of Sargasso Sea eel larvae gut contents and marine snow aggregates was compared with a reference plankton database to assess the trophic relations of eel larvae. Gut contents of A. anguilla larvae were not well explained by the eukaryotic composition of marine snow aggregates; gut contents being dominated by gene sequences of Hydrozoa taxa (phylum Cnidaria), while snow aggregates were dominated by Crustacea taxa. Pronounced differences between gut contents and marine snow aggregates were also seen in the prokaryotic 16S rRNA gene composition. The findings, in concert with significant abundances of Hydrozoa in the study area, suggest that Hydrozoa plankton are important in the diet of A. anguilla larvae, and that consideration of these organisms would further our understanding of A. anguilla feeding strategies in the oligotrophic Sargasso Sea, which may be important for potential future rearing of A. anguilla larvae in captivity.

U2 - 10.1038/s41598-018-24388-x

DO - 10.1038/s41598-018-24388-x

M3 - Journal article

VL - 8

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

M1 - 6156

ER -