DataSheet_1_Geographical differences in the diet of Dissostichus mawsoni revealed by metabarcoding.docx
The diet of the Antarctic toothfish (Dissostichus mawsoni) was analyzed using metabarcoding to determine whether spatiotemporal factors are related to its feeding ecology. A diet metabarcoding analysis was conducted for five years from 2016 to 2020 using 1,777 samples collected from two distantly lo...
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ftfrontimediafig:oai:figshare.com:article/20518113 2024-09-15T17:40:34+00:00 DataSheet_1_Geographical differences in the diet of Dissostichus mawsoni revealed by metabarcoding.docx Soo Rin Lee Seok-Gwan Choi Sangdeok Chung Doo Nam Kim Chang-Keun Kang Hyun-Woo Kim 2022-08-19T14:07:36Z https://doi.org/10.3389/fmars.2022.888167.s001 https://figshare.com/articles/dataset/DataSheet_1_Geographical_differences_in_the_diet_of_Dissostichus_mawsoni_revealed_by_metabarcoding_docx/20518113 unknown doi:10.3389/fmars.2022.888167.s001 https://figshare.com/articles/dataset/DataSheet_1_Geographical_differences_in_the_diet_of_Dissostichus_mawsoni_revealed_by_metabarcoding_docx/20518113 CC BY 4.0 Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering feeding ecology Antarctic toothfish metabarcoding CCAMLR Antarctica Dataset 2022 ftfrontimediafig https://doi.org/10.3389/fmars.2022.888167.s001 2024-08-19T06:20:02Z The diet of the Antarctic toothfish (Dissostichus mawsoni) was analyzed using metabarcoding to determine whether spatiotemporal factors are related to its feeding ecology. A diet metabarcoding analysis was conducted for five years from 2016 to 2020 using 1,777 samples collected from two distantly located subareas, 88.3 and 58.4.1. Metabarcoding results revealed 105 prey haplotypes (29 families, 45 genera) in the stomach contents of D. mawsoni, which can serve as valuable genetic information for the accurate identification of piscine species inhabiting the Southern Ocean. Most of the stomach contents of D. mawsoni consisted of fish taxa, comprising 99.61% of read count, which is consistent with other studies indicating that D. mawsoni is piscivorous. The prey compositions were highly different between the two subareas (88.3 and 58.4.1) regardless of the year, indicating that the diet of D. mawsoni strongly reflects the fish assemblages in geographically different habitats. These results strongly suggest that the stomach contents are good ecological indicators for monitoring any changes in the marine ecosystem caused by either the fishery of D. mawsoni, the most voracious piscine predator in its habitat, or environmental changes. In addition, quantitative polymerase chain reaction results of the two most abundant Macrourus prey species of Antarctic toothfish, M. caml and M. whitsoni, showed that the distribution of these two species may be related to the dynamics of gyres, which flow along the Antarctic continent. Dataset Antarc* Antarctic Antarctic Toothfish Antarctica Southern Ocean Frontiers: Figshare |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering feeding ecology Antarctic toothfish metabarcoding CCAMLR Antarctica |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering feeding ecology Antarctic toothfish metabarcoding CCAMLR Antarctica Soo Rin Lee Seok-Gwan Choi Sangdeok Chung Doo Nam Kim Chang-Keun Kang Hyun-Woo Kim DataSheet_1_Geographical differences in the diet of Dissostichus mawsoni revealed by metabarcoding.docx |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering feeding ecology Antarctic toothfish metabarcoding CCAMLR Antarctica |
description |
The diet of the Antarctic toothfish (Dissostichus mawsoni) was analyzed using metabarcoding to determine whether spatiotemporal factors are related to its feeding ecology. A diet metabarcoding analysis was conducted for five years from 2016 to 2020 using 1,777 samples collected from two distantly located subareas, 88.3 and 58.4.1. Metabarcoding results revealed 105 prey haplotypes (29 families, 45 genera) in the stomach contents of D. mawsoni, which can serve as valuable genetic information for the accurate identification of piscine species inhabiting the Southern Ocean. Most of the stomach contents of D. mawsoni consisted of fish taxa, comprising 99.61% of read count, which is consistent with other studies indicating that D. mawsoni is piscivorous. The prey compositions were highly different between the two subareas (88.3 and 58.4.1) regardless of the year, indicating that the diet of D. mawsoni strongly reflects the fish assemblages in geographically different habitats. These results strongly suggest that the stomach contents are good ecological indicators for monitoring any changes in the marine ecosystem caused by either the fishery of D. mawsoni, the most voracious piscine predator in its habitat, or environmental changes. In addition, quantitative polymerase chain reaction results of the two most abundant Macrourus prey species of Antarctic toothfish, M. caml and M. whitsoni, showed that the distribution of these two species may be related to the dynamics of gyres, which flow along the Antarctic continent. |
format |
Dataset |
author |
Soo Rin Lee Seok-Gwan Choi Sangdeok Chung Doo Nam Kim Chang-Keun Kang Hyun-Woo Kim |
author_facet |
Soo Rin Lee Seok-Gwan Choi Sangdeok Chung Doo Nam Kim Chang-Keun Kang Hyun-Woo Kim |
author_sort |
Soo Rin Lee |
title |
DataSheet_1_Geographical differences in the diet of Dissostichus mawsoni revealed by metabarcoding.docx |
title_short |
DataSheet_1_Geographical differences in the diet of Dissostichus mawsoni revealed by metabarcoding.docx |
title_full |
DataSheet_1_Geographical differences in the diet of Dissostichus mawsoni revealed by metabarcoding.docx |
title_fullStr |
DataSheet_1_Geographical differences in the diet of Dissostichus mawsoni revealed by metabarcoding.docx |
title_full_unstemmed |
DataSheet_1_Geographical differences in the diet of Dissostichus mawsoni revealed by metabarcoding.docx |
title_sort |
datasheet_1_geographical differences in the diet of dissostichus mawsoni revealed by metabarcoding.docx |
publishDate |
2022 |
url |
https://doi.org/10.3389/fmars.2022.888167.s001 https://figshare.com/articles/dataset/DataSheet_1_Geographical_differences_in_the_diet_of_Dissostichus_mawsoni_revealed_by_metabarcoding_docx/20518113 |
genre |
Antarc* Antarctic Antarctic Toothfish Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Toothfish Antarctica Southern Ocean |
op_relation |
doi:10.3389/fmars.2022.888167.s001 https://figshare.com/articles/dataset/DataSheet_1_Geographical_differences_in_the_diet_of_Dissostichus_mawsoni_revealed_by_metabarcoding_docx/20518113 |
op_rights |
CC BY 4.0 |
op_doi |
https://doi.org/10.3389/fmars.2022.888167.s001 |
_version_ |
1810486601893019648 |