Classification of Natural and Transplanted Ecklonia cava using Sr Isotope Ratios
| Type | : | ACL |
|---|---|---|
| Nature | : | Production scientifique |
| Au bénéfice du Laboratoire | : | Oui |
| Statut de publication | : | Publié |
| Année de publication | : | 2024 |
| Auteurs (4) | : | SEO Minji RYU Jong-sik CHOI Chang,geun VIGIER Nathalie |
| Revue scientifique | : | Journal of the Korean Society of Oceanography |
| Volume | : | 29 |
| Fascicule | : | 4 |
| Pages | : | 153-162 |
| DOI | : | 10.7850/jkso.2024.29.4.153 |
| URL | : | https://www.jksocean.or.kr/articles/article/P4Dy/ |
| Abstract | : | The number of Ecklonia cava (E. cava) populations has been gradually declining due to natural and anthropogenic effects. Although many studies have been focused on ecological phenomena, there are little studies on chemical and isotopic characteristics of natural and transplanted E. cava. Here, we collected natural and transplanted E. cava in East Sea, and measured elemental and strontium isotope geochemistry (87Sr/86Sr ratios) in order to provide a powerful tool for classifying them. Elemental abundances of each E. cava follow the order of stipe (2.90% ± 3.17%) > blade (2.65 ± 2.98%) > holdfast (2.30 ± 2.04%), while those of 87Sr/86Sr ratios do the order of blade (0.709198 ± 0.000013) > stipe (0.709181 ± 0.000009) ≈ holdfast (0.709181 ± 0.000017). All E. cava have 87Sr/86Sr ratios higher than that of seawater, indicating they uptake Sr from rocks and cement with higher 87Sr/86Sr ratios. The results of t-test showed that there is little difference in elemental compositions between two populations (p value > 0.05, n = 30), while the difference in 87Sr/86Sr ratios is significant (p value < 0.05, n = 30). This study suggests that the 87Sr/86Sr ratios can be a useful tracer for classifying natural and transplanted E. cava. |
| Mots-clés | : | Ecklonia cava; Strontium isotope ratios; Natural and transplanted E. cava |
| Commentaire | : | - |
| Tags | : | - |
| Fichier attaché | : | - |
| Citation | : |
Seo M, Ryu J-S, Choi CG, Vigier N (2024) Classification of Natural and Transplanted Ecklonia cava using Sr Isotope Ratios. J Korean Soc Oceanogr 29: 153-162 | doi: 10.7850/jkso.2024.29.4.153
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