Nodularia ( Cyanobacteriaceae ) Akinetes in the Sediments of the Peel-Harvey Estuary, Western Australia: Potential Inoculum Source for Nodularia Blooms

  • Huber A
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Abstract

The populations of viable Nodularia ( Cyanobacteriaceae ) propagules in the sediments of the Peel-Harvey Estuary in Western Australia were assessed over location, time, and depth. The sediments of the Harvey Estuary had greater numbers of Nodularia propagules than those of the contiguous Peel Inlet. This was consistent with the distribution of Nodularia blooms in the system. The sediment populations of Nodularia propagules has increased up to 100-fold at the study sites over a 4-year period during which three blooms have occurred. It is considered that the majority of the propagules are akinetes. The significance of the sediment akinetes in providing the inoculum for rapid onset of Nodularia blooms is discussed. The population of akinetes decreased with depth, but viable akinetes were still found at 35 cm, the maximum depth sampled. Bioturbation by polychaete worms is likely to be significant in the distribution of akinetes to these depths.

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APA

Huber, A. L. (1984). Nodularia ( Cyanobacteriaceae ) Akinetes in the Sediments of the Peel-Harvey Estuary, Western Australia: Potential Inoculum Source for Nodularia Blooms. Applied and Environmental Microbiology, 47(2), 234–238. https://doi.org/10.1128/aem.47.2.234-238.1984

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