This edited collection examines joint efforts by Latinos and African Americans to confront problems faced by populations of both groups in urban settings (in particular, socioeconomic disadvantage and concentration in inner cities). The essays address two major issues: experiences and bases for collaboration and contention between the two groups; and the impact of urban policies and initiatives of recent decades on Blacks and Latinos in central cities.
You?ll learn strategies and tactics that can be used to improve production and efficiency in the propagation of fingerlings in fertilized hatchery ponds. This book covers the production of a variety of fish, as well as shrimp, and provides a framework for a systems approach to management decisionmaking. Chapters present information that can be used to improve ecological efficiencies and the economics of production. Strategies and Tactics for Management of Fertilized Hatchery Ponds explains the systems approach to management. In the future, the most effective hatchery managers will base management decisions on information that is site- and pond-specific. This book provides you with needed information on organic and inorganic fertilizer materials; dynamics of water quality; pond filling schedules; biological control of problem organisms; fingerling production of walleye, striped bass, paddlefish, largemouth bass, and others. Readers find solutions to several common problems and learn about the processes needed to solve others. Chapters help answer questions important to the success and effectiveness of management of fertilized hatchery ponds such as: What kinds or sources of nutrients should be purchased? How much time and water are needed before larvae are stocked? What density and age of fish should be stocked? How can a satisfactory quality of larvae and environmental variables be achieved so that fish survive stocking and initiate normal feeding and growth? Has the initial survival and growth been satisfactory, or should the pond be drawn down and restocked? What kind and how much fertilizer should be added to a given pond? This book provides you with information essential for making hatchery ponds as effective and efficient as possible. Whether you?re a fish hatchery manager, student of aquaculture, or agency or academic researcher involved in hatchery management, you will find Strategies and Tactics for Management of Fertilized Hatchery Ponds an indispensable guide for your daily work and studies.
Comparative Vertebrate Morphology provides a comprehensive discussion of vertebrate morphology. The structure-function concept at the level of organs and organ systems is fundamental to an understanding of comparative evolutionary morphology. It is upon these three interrelated aspects—structure, function, and evolution— that that contents of this volume have been organized and presented. The book opens with a discussion of general concepts on vertebrate evolution. This is followed by separate chapters on vertebrate phylogeny, skeletal components, the cranial and postcranial skeleton, muscular tissues, muscular system, and development of the integument, nervous tissues, sense organs, nervous system structure, nervous pathways, and endocrines. Subsequent chapters deal with the digestive, respiratory, circulatory, excretory and water balance, and reproductive systems. This book was designed to meet the needs of a one-semester course for students who have already had an introductory course in biology. It is assumed that the lectures will be supplemented by a laboratory with its own laboratory manual. The organization of the text allows the instructor to coordinate the laboratory and lecture portions of the course.
THE DIVERSITY OF FISHES The third edition of The Diversity of Fishes is a major revision of the widely adopted ichthyology textbook, incorporating the latest advances in the biology of fishes and covering taxonomy, anatomy, physiology, biogeography, ecology, and behavior. Key information on the evolution of various fishes is also presented, providing expansive and conclusive coverage on all key topics pertaining to the field. To aid in reader comprehension, each chapter begins with a summary that provides a broad overview of the content of that chapter, which may be particularly useful for those using the text for a course who don’t intend to address every chapter in detail. Detailed color photographs throughout the book demonstrate just some of the diversity and beauty of fishes that attract many to the field. A companion website provides related videos selected by the authors, instructor resources, and additional references and websites for further reading. Sample topics covered and learning resources included in The Diversity of Fishes are as follows: How molecular genetics has transformed many aspects of ichthyology The close relationship between structure and function, including adaptations to special environments Many physical and behavioral adaptations reflecting the fact that many fishes are both predators and prey Fish interactions with other species within fish assemblages and broader communities, plus their impacts on ecosystems Global maps that more accurately represent the comparative sizes of oceans and land masses than maps used in prior editions For students, instructors, and individuals with an interest in ichthyology, The Diversity of Fishes is an all-in-one introductory resource to the field, presenting vast opportunities for learning, many additional resources to aid in information retention, and helpful recommendations on where to go to explore specific topics further.
Over the last 200 years our view of the world has been revolutionized.' Advances in geology and palaeontology, and in scientific techniques, over the past few centuries has led to a radical rethinking of our assumptions about our past.
This book is a single convenient source of information that covers priority areas of research in channel catfish aquaculture. Recent Developments in Catfish Aquaculture compiles some of the latest research in the field as presented at the Catfish Research Symposium. The editors present a diverse collection of chapters that illustrates recent research efforts in catfish culture and shows the scope of research that is being conducted in nutrition, genetics, water quality management, economics, fish health, and pond production systems. Some of the contributing authors’chapters are developmental but many contain information that can be immediately applied to commercial situations to improve production efficiency. A variety of subjects are covered in this catfish resource, including: Health Issues: immunology, vaccination, selection, drug evaluation, nutritional causes Genetics: hybridization, selection Hatchery Management: new techniques to incubate eggs; control of fungus on developing eggs; evaluation of mechanical graders Production Economics: comparison of different approaches Water Quality: discovery and identification of an algae that kills catfish; off-flavor; water circulators Nutrition: effects of feed on growth and fattiness of fish; nutritionally induced health problems Food Technology: impedance microbiology for evaluation and safety of processed catfish Behavior: behavioral interactions and feeding behavior Recent Developments in Catfish Aquaculture shows the paradox that exists in catfish farming research. On one hand, extremely sophisticated research is being used to solve complex problems. On the other, the basic method of raising catfish has not yet been determined. Several chapters describe important new developments in the field and will lead to important breakthroughs and developments in the future. This volume is required reading for those conducting catfish research or catfish culture, including university and federal aquaculture researchers as well as students. They will find it useful as a reference guide, and catfish farmers will find it helpful as a guide to recent advances in production technology.
Crowdfunding: Fundamental Cases, Facts, and Insights presents fundamental knowledge on this maturing economic field. Assembling and arranging datasets, case analyses, and other foundational materials on subjects associated with crowdfunding, the book systematically, comprehensively and authoritatively provides access to a consistent body of crowdfunding research. With the crowdfunding industry now consolidated, this core reference can serve as the basis for research projects and applied work. Presents a complete scope of crowdfunding areas in the international landscape Combines economics with international business, management, law and finance Enables practitioners and researchers to compare regulatory frameworks, best practices and market opportunities Includes a freely available website of supplementary pedagogical material
The second edition of The Diversity of Fishes represents a major revision of the world’s most widely adopted ichthyology textbook. Expanded and updated, the second edition is illustrated throughout with striking color photographs depicting the spectacular evolutionary adaptations of the most ecologically and taxonomically diverse vertebrate group. The text incorporates the latest advances in the biology of fishes, covering taxonomy, anatomy, physiology, biogeography, ecology, and behavior. A new chapter on genetics and molecular ecology of fishes has been added, and conservation is emphasized throughout. Hundreds of new and redrawn illustrations augment readable text, and every chapter has been revised to reflect the discoveries and greater understanding achieved during the past decade. Written by a team of internationally-recognized authorities, the first edition of The Diversity of Fishes was received with enthusiasm and praise, and incorporated into ichthyology and fish biology classes around the globe, at both undergraduate and postgraduate levels. The second edition is a substantial update of an already classic reference and text. Companion resources site This book is accompanied by a resources site: www.wiley.com/go/helfman The site is being constantly updated by the author team and provides: · Related videos selected by the authors · Updates to the book since publication · Instructor resources · A chance to send in feedback
Advancements in science and engineering have occurred at a surprisingly rapid pace since the release of the seventh edition of this encyclopedia. Large portions of the reference have required comprehensive rewriting and new illustrations. Scores of new topics have been included to create this thoroughly updated eighth edition. The appearance of this new edition in 1994 marks the continuation of a tradition commenced well over a half-century ago in 1938 Van Nostrand's Scientific Encyclopedia, First Edition, was published and welcomed by educators worldwide at a time when what we know today as modern science was just getting underway. The early encyclopedia was well received by students and educators alike during a critical time span when science became established as a major factor in shaping the progress and economy of individual nations and at the global level. A vital need existed for a permanent science reference that could be updated periodically and made conveniently available to audiences that numbered in the millions. The pioneering VNSE met these criteria and continues today as a reliable technical information source for making private and public decisions that present a backdrop of technical alternatives.
An extensive dictionary (almost 1800 pages) of the Upriver dialects of Halkomelem, an Amerindian language of B.C.,giving information from almost 80 speakers gathered by the author over a period of 40 years. Entries include names and dates of citation, dialect information, phonological, morphological, syntactic, and semantic information, domain memberships of each alloseme, examples of use in sentences, and much cultural information.
Need-to-know information on the classification and identificationof aquatic invertebrates This Fourth Edition of the standard reference used by generationsof professionals and students is the source for authoritativeinformation on the natural history, ecology, and taxonomy offree-living American freshwater invertebrates. Completely revisedand updated, this professional field guide features a wealth of newknowledge on invertebrate animal phyla covered in the previousedition as well as fully modified sections on the preparation ofmaterials. Other important features of Pennak's Freshwater Invertebrates ofthe United States, Fourth Edition include: * Current taxonomical arrangements of all freshwater invertebrateanimals, excluding insects * Improved graphical treatments and keys to identification, severalprovided by specialists * Photographs and color plates to aid identification * More than 300 line drawings, many new to this edition * Taxonomic keys carried uniformly to genus level in all but twophyla, with frequent references to species Pennak's Freshwater Invertebrates of the United States, FourthEdition is an indispensable resource for biologists, ecologists,graduate students, and anyone who needs to acquire the thoroughknowledge of aquatic invertebrates that is essential tounderstanding the community structure of freshwater environments.
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