Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1980 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1977 with total page 918 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Review of the World Resources of Mesopelagic Fish written by J. Gjøsaeter and published by Food & Agriculture Org.. This book was released on 1980 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: A fish species can be called mesopelagic if it spends the day in the mesopelagic zone. The mesopelagic zone has been defined in different ways based on depth, temperature and light regimes. For the present purpose, depth seems to be the best criterion and mesopelagic fish can thus be defined as species generally spending the day at depths between approximately 200 and 1 000 m. Generally they perform a diel migration, coming to the upper 200 m or even to the surface during the night. The present report briefly reviews the systematics ecology and life history of important groups of mesopelagic fish. Further, some methods used for abundance estimation of these fish are described and discussed. The bulk of the report reviews the present knowledge of abundance and species composition of mesopelagic fish in each of the FAO statistical areas. Although the data in most cases are few, an attempt has been made to give tentative estimates of the biomass and production in the various areas. When available, information on the life history of the most important species in each area is also given.
Download or read book FAO Fisheries Technical Paper written by Food and Agriculture Organization of the United Nations and published by . This book was released on 1980 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scale Pattern Estimates of Origin of Coho Salmon Taken in the Japanese Traditional Landbased Driftnet Salmon Fishery in 1990 written by Robert Victor Walker and published by . This book was released on 1991 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oceanic Sound Scattering Prediction written by Neil R. Andersen and published by Plenum Publishing Corporation. This book was released on 1977 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Science written by and published by . This book was released on 1974 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Collected Reprints Woods Hole Oceanographic Institution written by Woods Hole Oceanographic Institution and published by . This book was released on 1978 with total page 1334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains also Annual report.
Download or read book Encyclopedia of Acoustics written by Malcolm J. Crocker and published by Wiley-Interscience. This book was released on 1997-05-02 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of Acoustics belongs on the reference shelf of every engineer, architect, research scientist, or designer with a professional interest in the propagation, control, transmission, and effects of sound.
Download or read book R D Abstracts written by Technology Reports Centre (Great Britain) and published by . This book was released on 1979 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 2012-04 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acoustical Physics written by and published by . This book was released on 2000 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt: Russian academic journal in the field of acoustics. The journal publishes scientific reviews, original papers, short communications, letters to the editor and current events. It covers theoretical and experimental aspects of physical, technical, and biological acoustics. This journal presents results of research conducted at the institutes of the Russian Academy of Sciences, and at universities and research establishments in Russia and abroad.
Download or read book Izvestiya written by Akademii︠a︡ nauk SSSR. and published by . This book was released on 1985 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oceanic Abstracts with Indexes written by and published by . This book was released on 1980 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Review of Some Physical and Chemical Factors Affecting the Attenuation of Low Frequency Sound in Seawater written by Daniel J. Whelan and published by . This book was released on 1980 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: An attempt has been made to trace the contributions of various physical and chemical factors which effect the low frequency attenuation of sound observed in deep ocean channels and to establish that chemical relaxational processes do in fact contribute to the overall attenuation of this sound. The available evidence indicates that below 0.5 kHz, attenuation is affected predominantly by diffraction and diffusive scattering, but in the range 0.5 to 2.5 kHz, it is the effects of chemical relaxation processes, involving boric acid/borate and magnesium/carbonate equilibria, which dominate the sound absorption phenomenon.
Download or read book FAO Circulaire Sur Les P ches written by and published by . This book was released on 1985 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
