Image-derived indicators of phytoplankton community responses to Pseudo-nitzschia blooms
| Type | : | ACL |
|---|---|---|
| Nature | : | Production scientifique |
| Au bénéfice du Laboratoire | : | Oui |
| Statut de publication | : | Publié |
| Année de publication | : | 2024 |
| Auteurs (5) | : | AGARWAL Vitul SONNET Virginie INOMURA Keisuke CIOCHETTO A,b MOUW C,b |
| Revue scientifique | : | Harmful Algae |
| Volume | : | 138 |
| Fascicule | : | |
| Pages | : | |
| DOI | : | 10.1016/j.hal.2024.102702 |
| URL | : | https://www.sciencedirect.com/science/article/pii/S1568988324001355 |
| Abstract | : | Phytoplankton populations in the natural environment interact with each other. Despite rising global concern with Pseudo-nitzschia blooms, which can produce the potent neurotoxin domoic acid, we still do not fully understand how other phytoplankton genera respond to the presence of Pseudo-nitzschia. Here, we used a 4-year high-resolution imaging dataset for 9 commonly found phytoplankton genera in Narragansett Bay, alongside environmental data, to identify potential interactions between phytoplankton genera and their response to elevated Pseudo-nitzschia abundance. Our results indicate that Pseudo-nitzschia tends to bloom either concurrently with or right after other phytoplankton genera. Such bloom periods coincide with higher water temperatures and lower salinity. Pseudo-nitzschia image abundance tends to increase the most from March-May and peaks during May-Jun, whereas the image-derived biovolume and width of Pseudo-nitzschia chains increase the most during Jan-Feb. For most phytoplankton genera, their relationship with Pseudo-nitzschia abundance is noticeably different from their relationship with Pseudo-nitzschia image features. Despite the complexity in the phytoplankton community, our analysis suggests several ecological indicators that may be used to determine the risk of harmful algal blooms. |
| Mots-clés | : | Domoic acid; Ecological interactions; Imaging FlowCytobot (IFCB); Narragansett Bay; Phytoplankton population dynamics |
| Commentaire | : | - |
| Tags | : | - |
| Fichier attaché | : | - |
| Citation | : |
Agarwal V, Sonnet V, Inomura K, Ciochetto AB, Mouw CB (2024) Image-derived indicators of phytoplankton community responses to Pseudo-nitzschia blooms. Harmful Algae 138 | doi: 10.1016/j.hal.2024.102702
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