Using DNA Metabarcoding to Characterize the Prey Spectrum of Two Co-Occurring Themisto Amphipods in the Rapidly Changing Atlantic-Arctic Gateway Fram Strait
The two congeneric hyperiids Themisto libellula and T. abyssorum provide an important trophic link between lower and higher trophic levels in the rapidly changing Arctic marine ecosystem. These amphipods are characterized by distinct hydrographic affinities and are hence anticipated to be impacted d...
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Online Access: | https://epic.awi.de/id/eprint/59152/ https://epic.awi.de/id/eprint/59152/1/genes-13-02035%287%29.pdf https://doi.org/10.3390/genes13112035 https://hdl.handle.net/10013/epic.aaa28880-6d69-4829-943d-ec9ee69b8140 |
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ftawi:oai:epic.awi.de:59152 2024-09-30T14:28:08+00:00 Using DNA Metabarcoding to Characterize the Prey Spectrum of Two Co-Occurring Themisto Amphipods in the Rapidly Changing Atlantic-Arctic Gateway Fram Strait Dischereit, Annkathrin Wangensteen, Owen S Præbel, Kim Auel, Holger Havermans, Charlotte 2022-11-01 application/pdf https://epic.awi.de/id/eprint/59152/ https://epic.awi.de/id/eprint/59152/1/genes-13-02035%287%29.pdf https://doi.org/10.3390/genes13112035 https://hdl.handle.net/10013/epic.aaa28880-6d69-4829-943d-ec9ee69b8140 unknown MDPI https://epic.awi.de/id/eprint/59152/1/genes-13-02035%287%29.pdf Dischereit, A. , Wangensteen, O. S. , Præbel, K. , Auel, H. and Havermans, C. orcid:0000-0002-1126-4074 (2022) Using DNA Metabarcoding to Characterize the Prey Spectrum of Two Co-Occurring Themisto Amphipods in the Rapidly Changing Atlantic-Arctic Gateway Fram Strait , Genes, 13 (11), p. 2035 . doi:10.3390/genes13112035 <https://doi.org/10.3390/genes13112035> , hdl:10013/epic.aaa28880-6d69-4829-943d-ec9ee69b8140 EPIC3Genes, MDPI, 13(11), pp. 2035-2035, ISSN: 2073-4425 Article peerRev 2022 ftawi https://doi.org/10.3390/genes13112035 2024-09-02T14:07:29Z The two congeneric hyperiids Themisto libellula and T. abyssorum provide an important trophic link between lower and higher trophic levels in the rapidly changing Arctic marine ecosystem. These amphipods are characterized by distinct hydrographic affinities and are hence anticipated to be impacted differently by environmental changes, with major consequences for the Arctic food web. In this study, we applied DNA metabarcoding to the stomach contents of these Themisto species, to comprehensively reveal their prey spectra at an unprecedented-high-taxonomic-resolution and assess the regional variation in their diet across the Fram Strait. Both species feed on a wide variety of prey but their diet strongly differed in the investigated summer season, showing overlap for only a few prey taxa, such as calanoid copepods. The spatially structured prey field of T. libellula clearly differentiated it from T. abyssorum, of which the diet was mainly dominated by chaetognaths. Our approach also allowed the detection of previously overlooked prey in the diet of T. libellula, such as fish species and gelatinous zooplankton. We discuss the reasons for the differences in prey spectra and which consequences these may have in the light of ongoing environmental changes. Article in Journal/Newspaper Arctic Arctic Atlantic Arctic Atlantic-Arctic Fram Strait Themisto Themisto libellula Zooplankton Copepods Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Genes 13 11 2035 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
The two congeneric hyperiids Themisto libellula and T. abyssorum provide an important trophic link between lower and higher trophic levels in the rapidly changing Arctic marine ecosystem. These amphipods are characterized by distinct hydrographic affinities and are hence anticipated to be impacted differently by environmental changes, with major consequences for the Arctic food web. In this study, we applied DNA metabarcoding to the stomach contents of these Themisto species, to comprehensively reveal their prey spectra at an unprecedented-high-taxonomic-resolution and assess the regional variation in their diet across the Fram Strait. Both species feed on a wide variety of prey but their diet strongly differed in the investigated summer season, showing overlap for only a few prey taxa, such as calanoid copepods. The spatially structured prey field of T. libellula clearly differentiated it from T. abyssorum, of which the diet was mainly dominated by chaetognaths. Our approach also allowed the detection of previously overlooked prey in the diet of T. libellula, such as fish species and gelatinous zooplankton. We discuss the reasons for the differences in prey spectra and which consequences these may have in the light of ongoing environmental changes. |
format |
Article in Journal/Newspaper |
author |
Dischereit, Annkathrin Wangensteen, Owen S Præbel, Kim Auel, Holger Havermans, Charlotte |
spellingShingle |
Dischereit, Annkathrin Wangensteen, Owen S Præbel, Kim Auel, Holger Havermans, Charlotte Using DNA Metabarcoding to Characterize the Prey Spectrum of Two Co-Occurring Themisto Amphipods in the Rapidly Changing Atlantic-Arctic Gateway Fram Strait |
author_facet |
Dischereit, Annkathrin Wangensteen, Owen S Præbel, Kim Auel, Holger Havermans, Charlotte |
author_sort |
Dischereit, Annkathrin |
title |
Using DNA Metabarcoding to Characterize the Prey Spectrum of Two Co-Occurring Themisto Amphipods in the Rapidly Changing Atlantic-Arctic Gateway Fram Strait |
title_short |
Using DNA Metabarcoding to Characterize the Prey Spectrum of Two Co-Occurring Themisto Amphipods in the Rapidly Changing Atlantic-Arctic Gateway Fram Strait |
title_full |
Using DNA Metabarcoding to Characterize the Prey Spectrum of Two Co-Occurring Themisto Amphipods in the Rapidly Changing Atlantic-Arctic Gateway Fram Strait |
title_fullStr |
Using DNA Metabarcoding to Characterize the Prey Spectrum of Two Co-Occurring Themisto Amphipods in the Rapidly Changing Atlantic-Arctic Gateway Fram Strait |
title_full_unstemmed |
Using DNA Metabarcoding to Characterize the Prey Spectrum of Two Co-Occurring Themisto Amphipods in the Rapidly Changing Atlantic-Arctic Gateway Fram Strait |
title_sort |
using dna metabarcoding to characterize the prey spectrum of two co-occurring themisto amphipods in the rapidly changing atlantic-arctic gateway fram strait |
publisher |
MDPI |
publishDate |
2022 |
url |
https://epic.awi.de/id/eprint/59152/ https://epic.awi.de/id/eprint/59152/1/genes-13-02035%287%29.pdf https://doi.org/10.3390/genes13112035 https://hdl.handle.net/10013/epic.aaa28880-6d69-4829-943d-ec9ee69b8140 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Atlantic Arctic Atlantic-Arctic Fram Strait Themisto Themisto libellula Zooplankton Copepods |
genre_facet |
Arctic Arctic Atlantic Arctic Atlantic-Arctic Fram Strait Themisto Themisto libellula Zooplankton Copepods |
op_source |
EPIC3Genes, MDPI, 13(11), pp. 2035-2035, ISSN: 2073-4425 |
op_relation |
https://epic.awi.de/id/eprint/59152/1/genes-13-02035%287%29.pdf Dischereit, A. , Wangensteen, O. S. , Præbel, K. , Auel, H. and Havermans, C. orcid:0000-0002-1126-4074 (2022) Using DNA Metabarcoding to Characterize the Prey Spectrum of Two Co-Occurring Themisto Amphipods in the Rapidly Changing Atlantic-Arctic Gateway Fram Strait , Genes, 13 (11), p. 2035 . doi:10.3390/genes13112035 <https://doi.org/10.3390/genes13112035> , hdl:10013/epic.aaa28880-6d69-4829-943d-ec9ee69b8140 |
op_doi |
https://doi.org/10.3390/genes13112035 |
container_title |
Genes |
container_volume |
13 |
container_issue |
11 |
container_start_page |
2035 |
_version_ |
1811633940600979456 |