Translator Disclaimer
1 December 2009 Causes of Phytoplankton Changes in Saginaw Bay, Lake Huron, During the Zebra Mussel Invasion
Daniel B. Fishman, Sara A. Adlerstein, Henry A. Vanderploeg, Gary L. Fahnenstiel, Donald Scavia
Author Affiliations +
Abstract

Colonization of the Laurentian Great Lakes by the invasive mussel Dreissena polymorpha was a significant ecological disturbance. The invasion reached Saginaw Bay, Lake Huron, in 1991 and initially cleared the waters and lowered algal biomass. However, an unexpected result occurred 3 years after the initial invasion with the return of nuisance summer blooms of cyanobacteria, a problem that had been successfully addressed with the implementation of phosphorus controls in the late 1970s. A multi-class phytoplankton model was developed and tested against field observations and then used to explore the causes of these temporal changes. Model scenarios suggest that changes in the phytoplankton community can be linked to three zebra mussel-mediated effects: (1) removal of particles resulting in clearer water, (2) increased recycle of available phosphorus throughout the summer, and (3) selective rejection of certain Microcystis strains. Light inhibition of certain phytoplankton assemblages and the subsequent alteration of competitive dynamics is a novel result of this model. These results enhance our understanding of the significant role of zebra mussels in altering lower trophic level dynamics of Saginaw Bay and suggest that their physical reengineering of the aquatic environment was the major force driving changes in the phytoplankton community composition.

© 2009 Elsevier Inc.
Daniel B. Fishman, Sara A. Adlerstein, Henry A. Vanderploeg, Gary L. Fahnenstiel, and Donald Scavia "Causes of Phytoplankton Changes in Saginaw Bay, Lake Huron, During the Zebra Mussel Invasion," Journal of Great Lakes Research 35(4), 482-495, (1 December 2009). https://doi.org/10.1016/j.jglr.2009.08.003
Received: 22 July 2008; Accepted: 1 April 2009; Published: 1 December 2009
JOURNAL ARTICLE
14 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top