Download or read book The Relationship Between Echo Squared Integration and Fish Abundance written by Barry Gerbers Heist and published by . This book was released on 1980 with total page 182 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 Abstracts of Selected IES Doctoral Dissertations Master s Theses and Other Graduate Projects 1977 1984 written by and published by . This book was released on 1984 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geostatistics for Estimating Fish Abundance written by J. Rivoirard and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geostatistics is a branch of spatial statistics that was originally developed for the mining industry. The technique is now widely recognised as an important tool for the estimation of the abundance and distribution of natural resources. However, new developments have been required to extend its application to fisheries science, particularly in variogram estimation. This important new title describes the fundamentals of geostatistics in terms more familiar to life-scientists, and uses case studies on seven commercially important fish stocks to demonstrate its application to fisheries survey data. Comprehensive and practical advice is given on how this new method can be used to estimate the abundance (with an appropriate measure of precision) of fish stocks worldwide. Geostatistics for Estimating Fish Abundance will be of vital interest to fisheries research scientists, marine biologists, oceanographers, marine and fish ecologists, environmental scientists and experts involved in the assessment of natural animal resources. The book has been developed as a result of studies carried out by a collaborative team of international researchers expert in this area with financial support from the Commission of the European Communities, AIR specific RTD programme. J. Rivoirard and N. Bez are at the Centre de Géostatistique de Fontainebleau, Ecole des Mines de Paris, France, J. Simmonds and P. Fernandes are at the FRS Marine Laboratory, Aberdeen, UK and K. Foote is at the Institute of Marine Research, Bergen, Norway and at Woods Hole Oceanographic Institution, USA.
Download or read book Fishery Bulletin written by and published by . This book was released on 1999 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NOAA Technical Report NMFS written by and published by . This book was released on 1984 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Oceanic and Atmospheric Administration Technical Report National Marine Fisheries Service written by and published by . This book was released on 1996 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The History Present Condition and Future of the Molluscan Fisheries of North and Central America and Europe written by Clyde L. MacKenzie and published by . This book was released on 1997 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fisheries Acoustics written by John Simmonds and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Living resources of the sea and fresh water have long been an important source of food and economic activity. With fish stocks continuing to be over-exploited, there is a clear focus on fisheries management, to which acoustic methods can and do make an important contribution. The second edition of this widely used book covers the many technological developments which have occurred since the first edition; highly sophisticated sonar and computer processing equipment offer great new opportunities and Fisheries Acoustic, 2e provides the reader with a better understanding of how to interpret acoustic observations and put them to practical use. Well known and respected authors Emphasis on practical acoustic methods Detailed coverage of a commercially and environmentally important subject A vital tool for fisheries scientists, fisheries oceanographers, environmental biologists, ecologists, population biologists, fish biologists, and marine biologists. All those involved with design and use of acoustic equipment. Libraries in research establishments, government stations and universities where fisheries science is studied or taught will find this a welcome addition to their shelves.
Download or read book IES Report written by and published by . This book was released on 1984 with total page 798 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 1994 with total page 132 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 1972 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gas Hydrates 2 written by Livio Ruffine and published by John Wiley & Sons. This book was released on 2018-04-16 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas hydrates in their natural environment and for potential industrial applications (Volume 2).
Download or read book Book catalog of the Library and Information Services Division written by Environmental Science Information Center. Library and Information Services Division and published by . This book was released on 1977 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sport Fishery Abstracts written by and published by . This book was released on 1991 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Emerging Technologies for Reef Fisheries Research and Management written by James Christopher Taylor and published by . This book was released on 2006 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication of the NOAA Professional Paper NMFS Series is the product of a special symposium on "Emerging Technologies for Reef Fisheries Research and Management" held during the 56th annual Gulf and Caribbean Fisheries Institute meeting in Tortola, British Virgin Islands, November 2003. The purpose of this collection is to highlight the diversity of questions and issues in reef fisheries management that are benefiting from applications of technology. Topics cover a wide variety of questions and issues from the study of individual behavior, distribution and abundance of groups and populations, and associations between habitats and fish and shellfish species.
Download or read book NUREG CR written by U.S. Nuclear Regulatory Commission and published by . This book was released on 1978 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
