Factors associated with the deposition of Cladophora on Lake Michigan beaches in 2012

Journal of Great Lakes Research
CSS-Dynamac; USGS Michigan Water Science Center; National Park Service
By: , and 

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Abstract

Deposition of the macroalgae Cladophora spp. was monitored on 18 beaches around Lake Michigan during 2012 at a high temporal frequency. We observed a high degree of spatial variability in Cladophora deposition among beaches on Lake Michigan, even within local regions, with no clear regional pattern in the intensity of Cladophora deposition. A strong seasonal pattern in Cladophora deposition was observed, with the heaviest deposition occurring during mid-summer. Several beaches exhibited high temporal variability in Cladophora deposition over short time scales, suggesting that drifting algal mats may be extremely dynamic in nearshore environments of the Great Lakes. Cladophora deposition on Lake Michigan beaches was primarily related to the presence of nearshore structures, local population density, and nearshore bathymetry. There was relatively little evidence that waves, winds, or currents were associated with Cladophora deposition on beaches, but this may be due to the relatively poor resolution of existing nearshore hydrodynamic data. Developing a predictive understanding of beach-cast Cladophora dynamics in Great Lakes environments may require both intensive Cladophora monitoring and fine-scale local hydrodynamic modeling efforts.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Factors associated with the deposition of Cladophora on Lake Michigan beaches in 2012
Series title Journal of Great Lakes Research
DOI 10.1016/j.jglr.2015.09.008
Volume 41
Issue 4
Year Published 2015
Language English
Publisher International Association for Great Lakes Research
Publisher location Toronto
Contributing office(s) Great Lakes Science Center
Description 12 p.
First page 1094
Last page 1105
Country United States
State Illinois, Indiana, Michigan, Wisconsin
Other Geospatial Lake Michigan beaches
Online Only (Y/N) N
Additional Online Files (Y/N) N