Lipid metabolism of sea urchin Paracentrotus lividus in two contrasting natural habitats
Abstract Sea urchins Paracentrotus lividus were harvested monthly from April 2015 to March 2016 from two sites in Sardinia (Italy). The two sites, a Posidonia oceanica meadow and a rocky bottom habitat, were naturally characterized by different food sources and availability, being mainly populated b...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2021-07-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-021-93669-9 |
| _version_ | 1819202665123414016 |
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| author | Roberto Anedda Silvia Siliani Riccardo Melis Barbara Loi Maura Baroli |
| author_facet | Roberto Anedda Silvia Siliani Riccardo Melis Barbara Loi Maura Baroli |
| author_sort | Roberto Anedda |
| collection | DOAJ |
| description | Abstract Sea urchins Paracentrotus lividus were harvested monthly from April 2015 to March 2016 from two sites in Sardinia (Italy). The two sites, a Posidonia oceanica meadow and a rocky bottom habitat, were naturally characterized by different food sources and availability, being mainly populated by the sea grass Posidonia oceanica and the brown algae Halopteris scoparia, respectively. Total lipids showed a minimum during winter in mature gonads, and a maximum in the summer (recovery stage). Fatty acid (FA) profiles of gut contents and gonads differed from those of the most available food sources. Levels of C18:3 (n-3) (ALA) discriminated samples from the two sites. Despite the very low amounts of C20:5 (n-3) (EPA) and C20:4 (n-6) (ARA) in P. oceanica, the main FA in gonads and gut contents were EPA and ARA in both sites. Increase in green algae intake prior to gametogenesis, especially C. cylindracea, likely affected EPA and ARA levels in gonads. The results show that P. lividus is able to concentrate lipids in gut contents and also to selectively store EPA, ARA and their precursors ALA and 18:2 (n-6) (LA). Moreover, bioconversion of ALA to EPA and of LA to ARA in P. lividus is suggested. |
| first_indexed | 2024-12-23T04:07:38Z |
| format | Article |
| id | doaj.art-b2f1e200949444168f4f7b8ea6bb8a6d |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-23T04:07:38Z |
| publishDate | 2021-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-b2f1e200949444168f4f7b8ea6bb8a6d2022-12-21T18:00:35ZengNature PortfolioScientific Reports2045-23222021-07-0111111410.1038/s41598-021-93669-9Lipid metabolism of sea urchin Paracentrotus lividus in two contrasting natural habitatsRoberto Anedda0Silvia Siliani1Riccardo Melis2Barbara Loi3Maura Baroli4Porto Conte Ricerche S.r.l.Porto Conte Ricerche S.r.l.Porto Conte Ricerche S.r.l.IMC-International Marine CentreIMC-International Marine CentreAbstract Sea urchins Paracentrotus lividus were harvested monthly from April 2015 to March 2016 from two sites in Sardinia (Italy). The two sites, a Posidonia oceanica meadow and a rocky bottom habitat, were naturally characterized by different food sources and availability, being mainly populated by the sea grass Posidonia oceanica and the brown algae Halopteris scoparia, respectively. Total lipids showed a minimum during winter in mature gonads, and a maximum in the summer (recovery stage). Fatty acid (FA) profiles of gut contents and gonads differed from those of the most available food sources. Levels of C18:3 (n-3) (ALA) discriminated samples from the two sites. Despite the very low amounts of C20:5 (n-3) (EPA) and C20:4 (n-6) (ARA) in P. oceanica, the main FA in gonads and gut contents were EPA and ARA in both sites. Increase in green algae intake prior to gametogenesis, especially C. cylindracea, likely affected EPA and ARA levels in gonads. The results show that P. lividus is able to concentrate lipids in gut contents and also to selectively store EPA, ARA and their precursors ALA and 18:2 (n-6) (LA). Moreover, bioconversion of ALA to EPA and of LA to ARA in P. lividus is suggested.https://doi.org/10.1038/s41598-021-93669-9 |
| spellingShingle | Roberto Anedda Silvia Siliani Riccardo Melis Barbara Loi Maura Baroli Lipid metabolism of sea urchin Paracentrotus lividus in two contrasting natural habitats Scientific Reports |
| title | Lipid metabolism of sea urchin Paracentrotus lividus in two contrasting natural habitats |
| title_full | Lipid metabolism of sea urchin Paracentrotus lividus in two contrasting natural habitats |
| title_fullStr | Lipid metabolism of sea urchin Paracentrotus lividus in two contrasting natural habitats |
| title_full_unstemmed | Lipid metabolism of sea urchin Paracentrotus lividus in two contrasting natural habitats |
| title_short | Lipid metabolism of sea urchin Paracentrotus lividus in two contrasting natural habitats |
| title_sort | lipid metabolism of sea urchin paracentrotus lividus in two contrasting natural habitats |
| url | https://doi.org/10.1038/s41598-021-93669-9 |
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