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Trophic effects of sponge feeding within Lake Baikal's littoral zone. 2. Sponge abundance, diet, feeding efficiency, and carbon flux
Open accessAbstract
Endemic freshwater demosponges in the littoral zone of Lake Baikal, Russia, dominate the benthic biomass, covering 44% of the benthos. We measured in situ sponge abundance and grazing and calculated sponge‐mediated fluxes of picoplankton (plankton <2 µ m) for two common species, Baikalospongia intermedia and Baikalospongia bacillifera. By means of dual‐beam flow cytometry, we found retention efficiencies ranging from 58 to 99% for four types of picoplankton: heterotrophic bacteria, Synechococcus‐type cyanobacteria, autotrophic picoplankton with one chloroplast, and autotrophic picoplankton with two chloroplasts. By using a general model for organism‐mediated fluxes, we conservatively estimate that through active suspension feeding, sponges are a sink for 1.97 g C d−1 m−2, mostly from procaryotic cell types. Furthermore, grazing by these extensive sponge communities can create a layer of picoplankton‐depleted water overlying the benthic community in this unique lake.
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Citations
Cited by
The functional roles of marine sponges
Bell, J. J. (2008) · Estuarine, Coastal and Shelf Science · doi:10.1016/j.ecss.2008.05.002 · Cited by 760
Do associated microbial abundances impact marine demosponge pumping rates and tissue densities?
Weisz, J. B., Lindquist, N., & Martens, C. S. (2008) · Oecologia · doi:10.1007/s00442-007-0910-0 · Cited by 309
Nutrient Fluxes Through Sponges
Maldonado, M., Ribes, M., & van Duyl, F. C. (2012) · Advances in Marine Biology · doi:10.1016/b978-0-12-394283-8.00003-5 · Cited by 306
Hoffmann, F., Larsen, O., Thiel, V., Rapp, H. T., Pape, T., Michaelis, W., & Reitner, J. (2005) · Geomicrobiology Journal · doi:10.1080/01490450590922505 · Cited by 233
Flow cytometry and the single cell in phycology
Collier, J. L. (2000) · Journal of Phycology · doi:10.1046/j.1529-8817.2000.99215.x · Cited by 136
Metadata
- Authors
- Pile, A. J., Patterson, M. R., Savarese, M., Chernykh, V. I., & Fialkov, V. A.
- Venue
- Limnology and Oceanography
- Publisher
- Wiley
- Published
- 1997-01
- Volume
- 42
- Issue
- 1
- Pages
- 178-184
- ISSN
- 0024-3590 (ISSN-L)
- 1939-5590
- OpenAlex
- W2016835149
- Cited by
- 190
- References
- 0
- FWCI
- 3.65
- Type
- journal article
- Language
- en
- Open access
- green
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- Pile, A. J., Patterson, M. R., Savarese, M., Chernykh, V. I., & Fialkov, V. A. (1997). Trophic effects of sponge feeding within Lake Baikal's littoral zone. 2. Sponge abundance, diet, feeding efficiency, and carbon flux. Limnology and Oceanography. https://doi.org/10.4319/lo.1997.42.1.0178
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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