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Metabolic Interactions Between Bacteria and Phytoplankton
The cycling of energy and elements in aquatic environments is controlled by the interaction of autotrophic and heterotrophic processes. In surface waters of lakes, rivers, and oceans, photosynthetic microalgae and cyanobacteria fix carbon dioxide into organic matter that is then metabolized by heterotrophic bacteria (and perhaps archaea). Nutrients are remineralized by heterotrophic processes and subsequently enable phototrophs to grow. The organisms that comprise these two major ecological guilds are numerous in both numbers and in their genetic diversity, leading to a vast array of physiological and chemical responses to their environment and to each other. Interactions between bacteria an...
Anthropogenic Impacts on the Microbial Ecology and Function of Aquatic Environments
Aquatic ecosystems are currently experiencing unprecedented levels of impact from human activities including over-exploitation of resources, habitat destruction, pollution and the influence of climate change. The impacts of these activities on the microbial ecology of aquatic environments are only now beginning to be defined. One of the many implications of environmental degradation and climate change is the geographical expansion of disease- causing microbes such as those from the Vibrio genus. Elevating sea surface temperatures correlate with increasing Vibrio numbers and disease in marine animals (e.g. corals) and humans. Contamination of aquatic environments with heavy metals and other p...
Algae Refinery
Algae Refinery: Up- and Downstream Processes offers complete coverage of algae refinery, including up- and downstream processes while proposing an integrated algal refinery for the advancement of existing technologies and summarizing the strategies and future perspectives of algal refinery. It provides a concise introduction to the algal science, biology, technology, and application of algae. It explains downstream and upstream steps of algal refinery for the production of algal biomass, with several social benefits. Features: Provides various aspects of algal bioprocess including upstream and downstream processes Explains the major research streams of algae structures and their pathways Covers algal-based CO2 capture technology Explores the potential applications of algae for socioeconomical benefits Deliberates algal bioremediation approach for clean and sustainable development
Marine Sciences
Explores six prominent topics in marine science research, and describes how marine scientists conduct research and attempt to formulate answers to important questions.
Marine Sciences, Revised Edition
Marine Sciences, Revised Edition details the explorers and scientists who are expanding the frontiers of marine science. This comprehensive resource includes the study of the geology of the sea floor, the chemical and physical properties of the water, and the life that teems in and around it. This revised edition now covers the role humans play in polluting marine life and water supplies, and ultimately accelerating climate change, making this edition a must read. It also ties in a selection of various reports, offering students insightful information on the methods and applications of oceanography. Chapters include: The Ocean Depths—Exploring the Seabed Mid-Ocean Ridge—The Largest Single Volcanic Feature on the Planet Creatures of the Deep Sea Tsunami—Killer Waves El Niño and Weather Harmful Algal Blooms—"Red Tides" Human Impacts: Pollution and Climate Change.
SIO Reference
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Microbes: The Foundation Stone of the Biosphere
This collection of essays discusses fascinating aspects of the concept that microbes are at the root of all ecosystems. The content is divided into seven parts, the first of those emphasizes that microbes not only were the starting point, but sustain the rest of the biosphere and shows how life evolves through a perpetual struggle for habitats and niches. Part II explains the ways in which microbial life persists in some of the most extreme environments, while Part III presents our understanding of the core aspects of microbial metabolism. Part IV examines the duality of the microbial world, acknowledging that life exists as a balance between certain processes that we perceive as being envir...
John James Audubon
John James Audubon came to America as a dapper eighteen-year-old eager to make his fortune. He had a talent for drawing and an interest in birds, and he would spend the next thirty-five years traveling to the remotest regions of his new country–often alone and on foot–to render his avian subjects on paper. The works of art he created gave the world its idea of America. They gave America its idea of itself. Here Richard Rhodes vividly depicts Audubon’s life and career: his epic wanderings; his quest to portray birds in a lifelike way; his long, anguished separations from his adored wife; his ambivalent witness to the vanishing of the wilderness. John James Audubon: The Making of an American is a magnificent achievement.
Extracellular Enzymes in Aquatic Environments: Exploring the Link Between Genomic Potential and Biogeochemical Consequences
Microbial extracellular enzymes are fundamental to the cycling of elements in aquatic systems. The regulation of these enzymatic reactions in oceans, lakes and streams is under complex multiple control by environmental factors and the metabolic capacities of different taxa and communities. While the environmental control of enzyme-mediated processes has been investigated for over 100 years, in recent years tremendous progress in techniques to characterize the metabolic potential of microbial communities (“omics” techniques) has been made, such as high-throughput sequencing and new analytical algorithms. This book explores the controls, activities, and biogeochemical consequences of enzymes in aquatic environments. It brings together experimental studies and fieldwork conducted with natural microbial communities in marine and freshwater ecosystems as well as physiological, biochemical and molecular studies on microbial communities in these environments, or species isolated from them. Additionally, the book contributes to the ongoing debate on the impact of anthropogenic climate change and pollution on microbes, extracellular enzymes and substrate turnover.
