1 edition of Salinity and the structure of benthic algae (periphyton) communities in streams of the southern Fort Union region, Montana found in the catalog.
Salinity and the structure of benthic algae (periphyton) communities in streams of the southern Fort Union region, Montana
Loren L. Bahls
by Water Quality Bureau, Environmental Sciences Division, Montana Dept. of Health and Environmental Sciences in Helena, Mont
Written in English
|Statement||prepared by Loren L. Bahls|
|Contributions||Montana. Water Quality Bureau, United States. Bureau of Land Management, Geological Survey (U.S.)|
|The Physical Object|
|Pagination||vi leaves, 35 p. :|
|Number of Pages||35|
REGULATION OF BENTHIC ALGAL STRUCTURE AND FUNCTION IN NORTHERN BOREAL WETLANDS By Allison Renee Rober Algae are important to many of the processes that characterize wetland ecosystems. Despite their importance, we know relatively little about the factors that regulate algal communities in wetlands. Algae in space travel: Chlorella and Spirullina are unicellular algae, rich in proteins and are used as food supplements even by space travellers. F.E. Fritsch () classified algae into 11 classes in his book “Structure and Reproduction of Algae” based on the following characteristics. 1. .
In shallow subarctic Lake Mývatn, Iceland, benthic algae compose a majority of whole‐lake primary production, support high secondary production, and influence nutrient cycling. Given the importance of these ecosystem processes, the factors that limit benthic algae have a large effect on the function and dynamics of the Mývatn system. The first section introduces the locations of benthic algae in different ecosystems, like streams, large rivers, lakes, and other aquatic habitats. The second section is devoted to the various factors, both biotic and abiotic, that affect benthic freshwater algae. The final section of the book focuses on the role played by algae in a variety of.
Benthic biomass includes organisms that burrow into the seafloor, attach themselves to the seafloor, crawl around on the seafloor, and swim close to the seafloor. Areas of high benthic biomass correspond to areas of high primary productivity in the surface ocean. The benthic algal flora and vegetation seems seriously threatened by environmental changes, both abiotic and biotic. Here remains the fundamental question about effects of global warning on the entire benthic environment, in particular on the subsurface habitats. Adverse effects on benthis algae are: 1. a decrease in species richness;.
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BLM LIBRARY SALINITY AND THE STRUCTURE OF BENTHIC ALGAE (PERIPHYTON) COMMUNITIES IN STREAMS OF THE SOUTHERN FORT UNION REGION, MONTANA Prepared for the Bureau of Land Management and the United States Geological Survey I Research supported by the U.S.
Geological Survey, Department of the Interior under research grant number G Prepared by Loren L. Bahls Water Quality Bureau Environmental. Salinity and the structure of benthic algae (periphyton) communities in streams of the southern Fort Union region, Montana by Bahls, Loren L; Montana.
Water Quality Bureau; United States. Bureau of Land Management; Geological Survey (U.S.)Pages: benthic algae were measured within the salinity tolerance range, at 50,and g. and a temperature of C. Cultures were harvested at 3, 6. and 10 days after inoculation, and net dry weight yteld plotted against time.
Organic content Salinity and the structure of benthic algae book also measured in these cultures. In the third experiment. natural nut rient limitations on growth. All aspects of basic and applied research on algae are included to provide a common medium for the ecologist, physiologist, cell biologist, molecular biologist, morphologist, oceanographer, taxonomist, geneticist, and biochemist.
Roles of benthic algae in the structure, function, and assessment of stream ecosystems affected by acid mine Cited by: Assemblages of benthic algae from different depths will be related to salinity and temperature, bottom water oxygenation, and appearance of sulfide. Indirectly, we also address the influence of surface sediment characteristics on assemblage by: 9.
Benthic microalgae are a ubiquitous feature in sediments directly exposed to full sunlight or shaded by a vascular plant canopy in coastal salt marshes. Diatoms, cyanobacteria, and green algae are. Benthic algae are important primary producers and play a role in lotic ecosystems at the interface of chemical-physical and biotic components of the food web (StevensonLowe & LaLiberte The second section is devoted to the various factors, both biotic and abiotic, that affect benthic freshwater algae.
The final section of the book focuses on the role played by algae in a variety of complex freshwater ecosystems. The second section is devoted to the various factors, both biotic and abiotic, that affect benthic freshwater algae.
The final section of the book focuses on the role played by algae in a variety of complex freshwater ecosystems. As concern over environmental health escalates, the keystone and pivotal role played by algae is becoming more apparent.5/5(1).
The benthic biomass was additionally affected by water quality. Although the role of salinity in determining the large-scale invertebrate patterns was demonstrated earlier in the whole Baltic Sea range (Bonsdorff & Pearson, ), the relative contribution of macrovegetation and eutrophication has not been assessed.
Biological integrity of Cottonwood Creek and Rock Creek near Clyde Park, Montana based on the composition and structure of the Benthic algae community [Loren L Bahls, Montana.
Dept. of Environmental Quality] on *FREE* shipping on qualifying offers. This is a reproduction of a book published before This book may have occasional imperfections such as missing or.
Benthic algae and phytoplankton 1. Lecture 4 2. Subtopics 3. Benthic algae 4. Benthic algae usually cover hard bottoms from the seashore down to 20 to 40 m depth, depending on the clarity of the ocean.
Below that level, insufficient sunlight hampers their growth. Benthic Algae: Due to different substrates of the studied stream, the term of benthic algae is used in this study to express both the epipelic and epilithic algae attached to the concrete lining.
The sample of epipelic algae was taken from each site using a spatula for scraping off from the surface of the clay within area 50m2 and mm. Roles of benthic algae in the structure, function, and assessment of stream ecosystems affected by acid mine drainage.
Nathan J. Smucker. Corresponding Author. Office of Research and Development, National Health and Environmental Effects Research Laboratory, Atlantic Ecology Division, U.S. Environmental Protection Agency, Narragansett, Rhode Cited by: Knowledge of the spatial structure of benthic algal vegetations in salt marshes, consisting of about species of blue-green, green, brown and red algae, formed the basis of a detailed study into the dynamics of the algal mat.
The temporal changes in algal vegetations and concomitant processes in their environment were studied in 27 permanent quadrats (PQs), plotted in tidal salt Cited by: Benthic algae are a source of food, energy and cover for many organisms. In this way, the productivity of the benthic algae in shallow waters directly or indirectly affects the efficiency of the entire marine ecosystem.
Benthic algae are generally split into three main groups: green algae, brown algae and red algae. Tens of thousands of stream kilometers around the world are degraded by a legacy of environmental impacts and acid mine drainage (AMD) caused by abandoned underground and surface mines, piles of discarded coal wastes, and tailings.
Increased acidity, high concentrations of metals, and altered habitat negatively affect stream organisms. As the trophic base of primary production in streams, the. Effects of benthic algae on the replenishment of corals and the implications for the resilience of coral reefs By Chico L. Birrell, Laurence J.
McCook, Bette L. Willis & Guillermo A. Diaz-Pulido Abstract The ecological resilience of coral reefs depends critically on the capacity of coral populations to re-establish in habitats dominated by Cited by: Support of Aquatic Life Uses in Big Spring Creek, Fergus County, Montana Based on the Composition and Structure of the Benthic Algae Community: [Bahls, Loren L, Montana.
Dept. of Environmental Quality] on *FREE* shipping on qualifying offers. Support of Aquatic Life Uses in Big Spring Creek, Fergus County, Montana Based on the Composition and Structure of the Benthic Algae Author: Loren L. Bahls, Montana. The effects of salinity on plankton and benthic communities in the Great Salt Lake, Utah, USA: a microcosm experiment.
Brian D. Barnes, Wayne A. Wurtsbaugh. Department of Watershed Sciences and the Ecology Center, Utah State University, Logan, UTby:. Benthic habitats Epilithic - rock substrates Epiphytic - plants Epipelic - mud and silt Epipsammic - sand Epizooic - animals.
Benthic Algae Benthic algae are the dominant primary producers in many shallow lakes and streams Distributions of benthic algae in lakes are regulated by the penetration of Size: KB.This study investigates the relationship between salinity and biotic communities (primary producers and macroinvertebrates) in Rambla Salada, a Mediterranean hypersaline stream in SE Spain.
Since the 's, the mean salinity of the stream has fallen from about g L -1 to g L -1, due to intensive irrigated agriculture in the by: In the top 2 mm of the dry sediments, salinity increased steadily from 36 to over 23 days, and returned to seawater salinity on rewetting.
After 3 days, desiccated sediments had a lower chlorophyll a (Chl a) fluorescence signal as benthic diatoms ceased to migrate to the surface, with a recovery in cell migration and Chl a fluorescence on Cited by: