Effect of Type and Concentration of Ballasting Particles on Sinking Rate of Marine Snow Produced by the Appendicularian Oikopleura dioica
| Type | : | ACL |
|---|---|---|
| Nature | : | Production scientifique |
| Au bénéfice du Laboratoire | : | Oui |
| Statut de publication | : | Publié |
| Année de publication | : | 2013 |
| Auteurs (3) | : | LOMBARD Fabien GUIDI Lionel KIØRBOE T |
| Revue scientifique | : | Plos One |
| Volume | : | 8 |
| Fascicule | : | 9 |
| Pages | : | |
| DOI | : | 10.1371/journal.pone.0075676 |
| URL | : | <go to isi>://wos:000325218700108 |
| Abstract | : | Ballast material (organic, opal, calcite, lithogenic) is suggested to affect sinking speed of aggregates in the ocean. Here, we tested this hypothesis by incubating appendicularians in suspensions of different algae or Saharan dust, and observing the sinking speed of the marine snow formed by their discarded houses. We show that calcite increases the sinking speeds of aggregates by similar to 100% and lithogenic material by similar to 150% while opal only has a minor effect. Furthermore the effect of ballast particle concentration was causing a 33 m d(-1) increase in sinking speed for a 5x10(5) mu m(3) ml(-1) increase in particle concentration, near independent on ballast type. We finally compare our observations to the literature and stress the need to generate aggregates similar to those in nature in order to get realistic estimates of the impact of ballast particles on sinking speeds. |
| Mots-clés | : | - |
| Commentaire | : | Times Cited: 0 Lombard, Fabien/H-6702-2012; Guidi, Lionel/B-3977-2012 Lombard, Fabien/0000-0002-8626-8782; 0 |
| Tags | : | - |
| Fichier attaché | : | - |
| Citation | : |
Lombard F, Guidi L, Kiørboe T (2013) Effect of Type and Concentration of Ballasting Particles on Sinking Rate of Marine Snow Produced by the Appendicularian Oikopleura dioica. Plos One 8 | doi: 10.1371/journal.pone.0075676
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