This volume contains two monographs. It offers 30 additional pages of text compared to the first edition.
1) Monoraphid Diatoms from the Coastal Laurentian Great Lakes, by Euan D. Reavie (18 plates. 109 p.)
This monograph contains descriptions of taxa from the diatom genera Achnanthes, Achnanthidium, Platessa, Psammothidium, Rossithidium, Planothidium, Karayevia, Eucocconeis, Cocconeis and Rhoicosphenia from periphytic and surface sediment samples in the coastal ecosystems of the Laurentian Great Lakes. The author provides light micrographs of diatom taxa recorded in 207 samples from 106 wetlands, embayments, high-energy and deep, nearshore locales of the five Great Lakes. He characterizes 79 taxa and names two previously undescribed taxa. For the 50 more common taxa we characterized lake and habitat specificity, modelled optima for phosphorus and chloride and tolerance to coastal anthropogenic stressors.
2) Navicula from the Coastal Laurentian Great Lakes, by Euan D. Reavie and Norman A. Andresen (15 plates, 221 p.)
This monograph contains descriptions of taxa from the diatom genus Navicula and some closely related taxa from the coastal ecosystems of the Laurentian Great Lakes. The authors provide light micrographs of diatom taxa recorded in 207 samples from 106 wetlands, embayments, high-energy and deep, nearshore locales of the five Great Lakes. Diatoms were identified from periphytic and surface sediment samples. The taxonomic and iconographic sections of this book include descriptions and illustrations of the taxa encountered, as well as autecological information when available. 26 new species are described.