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This volume summarises the outcome of the 13th Workshop of the International Association of Phytoplankton Taxonomy and Ecology (IAP) on if, and if so under what conditions phytoplankton assemblages reach equilibrium in natural environments. Quite a number of ecological concepts use terms such as: ecological equilibrium, stability, steady-state, climax, stable state, etc. However, these ecological concepts often have been "translations" of scientific theories developed in physics or chemistry but they almost always lack scientific corroboration, the problem being that often these concepts remain vague and they are not formally defined. Here an attempt to formally recognize what "equilibrium" is in phytoplankton ecology is traced. The book also contains papers by leading scientists on the taxonomy of two selected key groups: cryptomonads and filamentous cyanoprokaryotes. This volume is addressed to all those involved in phytoplankton taxonomy and ecology and in ecology itself.
These proceedings deal with the relationship between species composition of freshwater phytoplankton and the trophic gradient. Particular regard is paid to the composite question, what lives where and why? Overview papers report the state of the art and suggest that the trophic spectrum appears to be a probabilistic outcome of several dimensions of variability that impinge upon phytoplankton species selection. Studies on community structure span all latitudes from those of Antarctica to equatorial Brazil, and also include reports on light and nutrient gradients, pH and fish-stock effects on species composition. Seasonal and longterm phytoplankton dynamics in lakes of varying trophic status a...
The present review study deals with few biological aspects of few fresh water fishes including catfishes based on published literature as worked out by various researchers of India. Many small fresh water fishes and catfishes have become threatened and endangered due to contamination, over exploitation, habitat destruction, water abstraction, siltation, habitat fragmentation, fish diseases and introduction of alien species. For sustainable utilization, proper planning related to conservation and management strategies are of utmost importance. The earlier studies on the various aspects of fish bionomics have been reviewed under the following headings Viz., length-weight relationship, relative condition factor, food and feeding habits, GSI,HIS, sex ratio and fecundity.
The ecology of potamoplankton has received less attention than lake plankton. These proceedings produce a synthesis of the composition, community structure and dynamics of lotic phytoplankton, which are intuitively submitted to a strong physical control in the flowing environment, perceived as much more `disturbed' than a lake, even than a well-mixed shallow one. It turns out that the boundary between the phytoplankton of rivers and lakes is not as clear-cut as was thought. In particular, most contributions provide arguments emphasizing the prominent role of physical control in both aquatic systems, especially due to the steep light gradient resulting from turbulent mixing in a turbid water column. Similarities and differences between potamoplankton and limnoplankton, largely based on the information gathered by the contributors are discussed in the introductory paper by Reynolds et al.
Phytoplankton responses to human impact at different scales provides a state-of-the-art review of changes in the phytoplankton assemblages determined by human alterations of lakes and rivers. A wide spectrum of case studies describe the effects due to eutrophication and climate change, as well as other impacts connected with watershed management, hydrological alterations and introduction of non-indigenous species. The volume also includes two wide reviews on planktonic coccoid green algae and planktic heterocytous cyanobacteria. This book is addressed to ecologists and scientists involved in phytoplankton ecology and taxonomy. Many case studies provide a sound scientific basis of knowledge for a wise management of water bodies. Previously published in Hydrobiologia, vol. 698, 2012
The Freshwaters of Patagonia adopts a socioecological approach, in which experts from across Patagonia review recent, scientifically rigorous literature and data of their own, thus synthesizing the current knowledge directly relevant to understand the present state and future trends of icefields, freshwater and wetland ecosystems in this region. The book’s organization into three parts provides a studied and comprehensive view on the patterns and processes of the various ecosystems in Patagonia, and describes the sociological aspects of freshwater ecosystems, as well as characterizes the conservation of the freshwater and wetland ecosystems, in Patagonia. The chapters offer a broad, state-...
In port cities around the world, waterfront development projects have been hailed both as spaces of promise and as crucial territorial wedges in twenty-first century competitive growth strategies. Frequently, these mega-projects have been intended to transform derelict docklands into communities of hope with sustainable urban economies—economies intended to both compete in and support globally-networked hierarchies of cities. This collection engages with major theoretical debates and empirical findings on the ways waterfronts transform and have been transformed in port-cities in North and South America, Europe, the Caribbean. It is organized around the themes of fixities (built environment...
Book Structure In the call for contributions for this publication, we suggested participants cover topics such as experience design, UX design, interaction design, service design, product-service system design (PSSD), social design, sustainable design, and other approaches related to culture, cities, technologies, and future scenarios. However, the 40 short papers by 86 authors presented in this book expand our initial scope, portraying a comprehensive research approach to experience design in Korea and Latin America. Throughout the process of reviewing the submissions, the editors were able to map the range of perspectives, and selected the most recurrent ones to orient the structure of the text, which contains 11 chapters consisting of 3 to 5 short papers. Each section examines issues related to several kinds of experience: contemporary, educational, interactive, sensory, art, social, inclusive, healthcare, sustainable, data, and urban. - in the 'Introduction' of the book
This guide to Chile refreshingly focuses on the country's natural history and culture. It encompasses every aspect of this geographically diverse country, from the immense deserts and peaks in the north, via the fertile central valleys, to the dense rainforests and glaciers of the south. There is opportunity to discover the culture of Chile, including mummies from the 5th century BC found in the Atacama Desert and Inca ruins. Travellers can hike the Andes, savour fine and affordable wine, and venture off shore to sail and kayak. This guide details every aspect of travel, from accommodation and eating out to national parks and sailing, in this most easy of Latin American countries for independent travellers.