Download or read book Our Observations on the Behavior of the Trawl in Water written by N. A. Lyapin and published by . This book was released on 1959 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book OTS written by United States. Dept. of Commerce. Office of Technical Services and published by . This book was released on 1959 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Observations of a Scientist diver on Fishing Technology and Fisheries Biology written by William L. High and published by . This book was released on 1998 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Commercial Fisheries Review written by and published by . This book was released on 1961 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Translations written by and published by . This book was released on 1961 with total page 1006 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Trawl Operation written by and published by . This book was released on 1958 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fishery and Oceanography Translations written by United States. Bureau of Commercial Fisheries and published by . This book was released on 1964 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book How nature shaped echolocation in animals written by Mariana L Melcón and published by Frontiers E-books. This book was released on 2014-11-24 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Echolocation has evolved in different groups of animals, from bats and cetaceans to birds and humans, and enables localization and tracking of objects in a dynamic environment, where light levels may be very low or absent. Nature has shaped echolocation, an active sense that engages audiomotor feedback systems, which operates in diverse environments and situations. Echolocation production and perception vary across species, and signals are often adapted to the environment and task. In the last several decades, researchers have been studying the echolocation behavior of animals, both in the air and underwater, using different methodologies and perspectives. The result of these studies has led to rich knowledge on sound production mechanisms, directionality of the sound beam, signal design, echo reception and perception. Active control over echolocation signal production and the mechanisms for echo processing ultimately provide animals with an echoic scene or image of their surroundings. Sonar signal features directly influence the information available for the echolocating animal to perceive images of its environment. In many echolocating animals, the information processed through echoes elicits a reaction in motor systems, including adjustments in subsequent echolocation signals. We are interested in understanding how echolocating animals deal with different environments (e.g. clutter, light levels), tasks, distance to targets or objects, different prey types or other food sources, presence of conspecifics or certain predators, ambient and anthropogenic noise. In recent years, some researchers have presented new data on the origins of echolocation, which can provide a hint of its evolution. Theoreticians have addressed several issues that bear on echolocation systems, such as frequency or time resolution, target localization and beam-forming mechanisms. In this Research Topic we compiled recent work that elucidates how echolocation – from sound production, through echolocation signals to perception- has been shaped by nature functioning in different environments and situations. We strongly encouraged comparative approaches that would deepen our understanding of the processes comprising this active sense.

Download or read book OTS Selective Bibliography written by and published by . This book was released on with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dictionary Catalog of the Department Library written by United States. Department of the Interior. Library and published by . This book was released on 1967 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Commercial Fisheries Abstracts written by and published by . This book was released on 1964 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Marine Fisheries Review written by and published by . This book was released on 1995 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Antarctic Journal of the United States written by and published by . This book was released on 1991 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Behavior of Marine Fishes written by Pingguo He and published by John Wiley & Sons. This book was released on 2011-06-09 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: BEHAVIOR OF MARINE FISHES BEHAVIOR OF MARINE FISHES: Capture Processes and Conservation Challenges Understanding fish behavior in relation to capture processes in marine fisheries is of fundamental importance to reducing bycatch and discards, and to enhancing marine fisheries conservation efforts. A thorough understanding of this allows commercial fishers to more effectively capture target species while reducing the catch of unwanted species. Behavior of Marine Fishes: Capture Processes and Conservation Challenges provides the reader with principles, patterns, and characteristics on fish behavior and fish capture processes using several types of important commercial fishing gears. The book also highlights conservation challenges facing the marine capture fisheries in efforts to maintain sustainable use of marine resources and to reduce negative impacts to the marine ecosystem. This volume, with contributions from leading applied fish behaviorists and fishing gear technologists from around the world, will be a valuable reference for researchers, fishing gear technologists, fisheries managers, students, and conservationists. SPECIAL FEATURES: Synthesis of current research and valuable knowledge that will help reduce bycatch and discards in commercial fisheries Review of basic fish behavioral principles and patterns and their relation to capture methods and conservation efforts Contributions from leading international applied fish behaviorists and fishing gear technologists

Download or read book Monthly Index of Russian Accessions written by Library of Congress. Processing Department and published by . This book was released on 1959 with total page 890 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Index of Russian Accessions written by and published by . This book was released on 1959 with total page 914 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spiny Lobster Explorations in the Pacific and Caribbean Waters of the Republic of Panama written by Johnny A. Butler and published by . This book was released on 1965 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: