Bivalve Feeding Responses to Microalgal Bloom Species in the Indian River Lagoon: the Potential for Top-Down Control
| العنوان: | Bivalve Feeding Responses to Microalgal Bloom Species in the Indian River Lagoon: the Potential for Top-Down Control |
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| المؤلفون: | Larissa A. H. dos Santos, Jillian Lunt, Thomas Sauvage, A. Domingos, Maria Kolmakova, Edward J. Phlips, Christopher J. Freeman, Malcolm Mossop, Jessica Lunt, Valerie J. Paul, Eve Galimany, Jay Houk |
| المساهمون: | St. Johns River Water Management District, Florida Fish and Wildlife Conservation Commission, Agencia Estatal de Investigación (España) |
| المصدر: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| بيانات النشر: | Springer Science and Business Media LLC, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | 0106 biological sciences, 010501 environmental sciences, Aquatic Science, 01 natural sciences, Algal bloom, Oysters, Aureoumbra lagunensis, Mussels, Ecology, Evolution, Behavior and Systematics, 0105 earth and related environmental sciences, Synechococcus, Mercenaria, Harmful algal bloom, Ecology, biology, Clams, 010604 marine biology & hydrobiology, Filter feeder, Ischadium recurvum, biology.organism_classification, Crassostrea, Picochlorum, Bloom, Perna viridis |
| الوصف: | 14 pages, 3 figures, 2 tables.-- This is Smithsonian Marine Station contribution #1138 In 2011, the Indian River Lagoon, a biodiverse estuary in eastern Florida (USA), experienced an intense microalgal bloom with disastrous ecological consequences. The bloom included a mix of microalgae with unresolved taxonomy and lasted for 7 months with a maximum concentration of 130 μg chlorophyll a L. In 2012, brown tide Aureoumbra lagunensis also bloomed in portions of this estuary, with reoccurrences in 2016 and 2018. To identify and understand the role of grazer pressure (top-down control) on bloom formation, we coupled DNA sequencing with bivalve feeding assays using three microalgae isolated from the 2011 bloom and maintained in culture. Feeding experiments were conducted on widely distributed bivalve species in the lagoon, including eastern oysters (Crassostrea virginica), hooked mussels (Ischadium recurvum), charru mussels (Mytella charruana), green mussels (Perna viridis), Atlantic rangia (Rangia cuneata), and hard clams (Mercenaria mercenaria), which were exposed to 3 × 10 cells mL of five species of microalgae consisting of A. lagunensis and the three species clarified herein, the picocyanobacteria Crocosphaera sp. and ‘Synechococcus’ sp., and the picochlorophyte Picochlorum sp., as well as Nannochloropsis oculata used as a control. To ensure clearance rates were indicative of consumption and assimilation, the microalgae were isotopically (N) labeled prior to feeding experiments. Clearance rates differed among bivalve and microalgal species, but enriched N values in bivalve tissue suggest that algal bloom species were assimilated by the bivalves. These results expand our understanding of the important ecosystem services that healthy, biodiverse filter feeder communities provide We thank St. Johns River Water Management District (Contract 27799) and the Florida Fish and Wildlife Conservation Commission (FWC Agreement No. 13051) for funding the project With the funding support of the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S), of the Spanish Research Agency (AEI) |
| تدمد: | 1559-2731 1559-2723 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e4c10f88ed7975542023f03790ac54c https://doi.org/10.1007/s12237-020-00746-9 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....3e4c10f88ed7975542023f03790ac54c |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 15592731 15592723 |
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