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Didymosphenia geminata in the Upper Esopus Creek: Seasonal changes in density and distribution, controlling environmental factors, and potential ecosystem impacts

Dates

End Date
2012

Summary

Background - The invasive diatom Didymosphenia geminata (didymo) has historically been a wide-spread, but rare, micro algae found in moderately flowing cold-water streams of North America, Europe, Asia, and (more recently) New Zealand. Demographic patterns of didymo have recently changed resulting in greater spatial coverage and temporal persistence (e.g. blooms) in streams worldwide. Didymo blooms can form dense “woven fabric” aggregate up to 20 cm think, that trap algae, macroinvertebrates, detritus and other debris. The recent discovery of didymo in parts of New York State, including the Upper Esopus Creek in 2009, is concerning because blooms can affect benthic habitat, river hydraulics, the structure and function of lotic ecosystems [...]

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Attached Files

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LK00-E5T01-Fig2.jpg
“Didymo in hand along the Upper Esopus Creek 2009”
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LK00-E5T01-Fig1.jpg thumbnail 906.57 KB
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GlobalWatershedNY.dbf 2.65 KB
GlobalWatershedNY.shx 108 Bytes
GlobalWatershedNY.prj 424 Bytes

Project Extension

projectStatusCompleted
projectProducts
productDescriptionGeorge SD, Baldigo BP (2015) Didymosphenia geminata in the Upper Esopus Creek: Current Status, Variability, and Controlling Factors. PLoS ONE 10(7): e0130558. doi:10.1371/journal.pone.0130558
statusDelivered
parts
typeShort Project Description
valuePrimary objectives of this study are collect information needed to better understand and possibly control nuisance didymo blooms and to minimize ecosystem impacts in the Upper Esopus Creek and other streams of the region.

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ScienceBase WFS

Communities

  • USGS New York Water Science Center

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Provenance

DEPTH-

Additional Information

Alternate Titles

  • Didymo

Identifiers

Type Scheme Key
projectId BASIS+ LK00-E5T01

Shapefile Extension

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