Ecosystem Processes of Epilithis and Epixylic Periphyton in a Backwater of the Upper Mississippi River
Ecosystem Processes of Epilithis and Epixylic Periphyton in a Backwater of the Upper Mississippi River

Author: Shane Daniel Symmank

Publisher:

Published: 2011

Total Pages: 118

ISBN-13:

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In large lotic aquatic systems like the upper Mississippi River (UMR), the majority of primary production is most often attributed to pelagic (free-floating) biological communities, or macrophyte communities. However, the ecological significance of benthic microbial communities is critical when assessing the quality of these aquatic habitats. Benthic systems teem with aquatic microbes, many of which inhabit matrixenclosed biofilms (i.e., periphyton) that contribute to key ecological processes such as primary production, community respiration, nutrient cycling, and secondary production. The objective of this study was to culture periphyton on three different types of artificial substrates (unglazed ceramic tile and two types of wood: poplar and pine) situated inside exclosures developed specifically to inhibit colonization by large macroinvertebrate grazers. The exclosures were deployed in Target Lake, a backwater lake in Pool 8 of the UMR, for three week incubations throughout the summer of 2010. Periphyton growth on the substrates was subsequently analyzed for biomass (i.e., chlorophyll a and ash-free dry mass), primary production, and secondary production. Data from early summer (late May through early July) exclosure deployments showed significant (ANOVA, p

GREAT I
GREAT I

Author: Great River Environmental Action Team (U.S.)

Publisher:

Published: 1980

Total Pages: 380

ISBN-13:

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Methods in Stream Ecology
Methods in Stream Ecology

Author: F. Richard Hauer

Publisher: Academic Press

Published: 2011-04-27

Total Pages: 894

ISBN-13: 0080547435

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Methods in Stream Ecology, Second Edition, provides a complete series of field and laboratory protocols in stream ecology that are ideal for teaching or conducting research. This updated edition reflects recent advances in the technology associated with ecological assessment of streams, including remote sensing. In addition, the relationship between stream flow and alluviation has been added, and a new chapter on riparian zones is also included. The book features exercises in each chapter; detailed instructions, illustrations, formulae, and data sheets for in-field research for students; and taxanomic keys to common stream invertebrates and algae. With a student-friendly price, this book is key for all students and researchers in stream and freshwater ecology, freshwater biology, marine ecology, and river ecology. This text is also supportive as a supplementary text for courses in watershed ecology/science, hydrology, fluvial geomorphology, and landscape ecology. Exercises in each chapter Detailed instructions, illustrations, formulae, and data sheets for in-field research for students Taxanomic keys to common stream invertebrates and algae Link from Chapter 22: FISH COMMUNITY COMPOSITION to an interactive program for assessing and modeling fish numbers

Stream Ecology
Stream Ecology

Author: J. David Allan

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 385

ISBN-13: 9401107297

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Running waters are enormously diverse, ranging from torrential mountain brooks, to large lowland rivers, to great river systems whose basins occupy subcontinents. While this diversity makes river ecosystems seem overwhelmingly complex, a central theme of this volume is that the processes acting in running waters are general, although the settings are often unique. The past two decades have seen major advances in our knowledge of the ecology of streams and rivers. New paradigms have emerged, such as the river continuum and nutrient spiraling. Community ecologists have made impressive advances in documenting the occurrence of species interactions. The importance of physical processes in rivers has attracted increased attention, particularly the areas of hydrology and geomorphology, and the inter-relationships between physical and biological factors have become better understood. And as is true for every area of ecology during the closing years of the twentieth century it has become apparent that the study of streams and rivers cannot be carried out by excluding the role of human activities, nor can we ignore the urgency of the need for conservation. These developments are brought together in Stream Ecology: Structure and function of running waters, designed to serve as a text for advanced undergraduate and graduate students, and as a reference book for specialists in stream ecology and related fields.

Freshwater Algae of North America
Freshwater Algae of North America

Author: John D. Wehr

Publisher: Elsevier

Published: 2015-06-05

Total Pages: 1067

ISBN-13: 0123858771

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Freshwater Algae of North America: Ecology and Classification, Second Edition is an authoritative and practical treatise on the classification, biodiversity, and ecology of all known genera of freshwater algae from North America. The book provides essential taxonomic and ecological information about one of the most diverse and ubiquitous groups of organisms on earth. This single volume brings together experts on all the groups of algae that occur in fresh waters (also soils, snow, and extreme inland environments). In the decade since the first edition, there has been an explosion of new information on the classification, ecology, and biogeography of many groups of algae, with the use of molecular techniques and renewed interest in biological diversity. Accordingly, this new edition covers updated classification information of most algal groups and the reassignment of many genera and species, as well as new research on harmful algal blooms. Extensive and complete Describes every genus of freshwater algae known from North America, with an analytical dichotomous key, descriptions of diagnostic features, and at least one image of every genus. Full-color images throughout provide superb visual examples of freshwater algae Updated Environmental Issues and Classifications, including new information on harmful algal blooms (HAB) Fully revised introductory chapters, including new topics on biodiversity, and taste and odor problems Updated to reflect the rapid advances in algal classification and taxonomy due to the widespread use of DNA technologies