Fishery and utilisation of mesopelagic fishes and krill in the North Atlantic
Author :
Publisher : Nordic Council of Ministers
Page : 39 pages
File Size : 18,7 MB
Release : 2008
Category :
ISBN : 9289316748
Author :
Publisher : Nordic Council of Ministers
Page : 39 pages
File Size : 18,7 MB
Release : 2008
Category :
ISBN : 9289316748
Author : National Research Council
Publisher : National Academies Press
Page : 189 pages
File Size : 32,34 MB
Release : 1999-03-19
Category : Technology & Engineering
ISBN : 0309055261
Fluctuations and declines in marine fish populations have caused growing concern among marine scientists, fisheries managers, commercial and recreational fishers, and the public. Sustaining Marine Fisheries explores the nature of marine ecosystems and the complex interacting factors that shape their productivity. The book documents the condition of marine fisheries today, highlighting species and geographic areas that are under particular stress. Challenges to achieving sustainability are discussed, and shortcomings of existing fisheries management and regulation are examined. The volume calls for fisheries management to adopt a broader ecosystem perspective that encompasses all relevant environmental and human influences. Sustaining Marine Fisheries offers new approaches to building workable fisheries management institutions, improving scientific data, and developing management tools. The book recommends ways to change current practices that encourage overexploitation of fish resources. It will be of special interest to marine policymakers and ecologists, fisheries regulators and managers, fisheries scientists and marine ecologists, fishers, and concerned individuals.
Author : J. A. Gulland
Publisher :
Page : 292 pages
File Size : 15,88 MB
Release : 1971
Category : Nature
ISBN :
Author : Food and Agriculture Organization of the United Nations
Publisher : Food & Agriculture Org.
Page : 227 pages
File Size : 49,14 MB
Release : 2018-07-10
Category : Technology & Engineering
ISBN : 9251305625
The 2018 edition of The State of World Fisheries and Aquaculture emphasizes the sector’s role in achieving the 2030 Agenda for Sustainable Development and the Sustainable Development Goals, and measurement of progress towards these goals. It notes the particular contributions of inland and small-scale fisheries, and highlights the importance of rights-based governance for equitable and inclusive development. As in past editions, the publication begins with a global analysis of trends in fisheries and aquaculture production, stocks, processing and use, trade and consumption, based on the latest official statistics, along with a review of the status of the world’s fishing fleets and human engagement and governance in the sector. Topics explored in Parts 2 to 4 include aquatic biodiversity; the ecosystem approach to fisheries and to aquaculture; climate change impacts and responses; the sector’s contribution to food security and human nutrition; and issues related to international trade, consumer protection and sustainable value chains. Global developments in combating illegal, unreported and unregulated fishing, selected ocean pollution concerns and FAO’s efforts to improve capture fishery data are also discussed. The issue concludes with the outlook for the sector, including projections to 2030. As always, The State of World Fisheries and Aquaculture aims to provide objective, reliable and up-to- date information to a wide audience, including policy-makers, managers, scientists, stakeholders and indeed all those interested in the fisheries and aquaculture sector.
Author : Odd-ivar Lekang
Publisher : 5m Books Ltd
Page : 527 pages
File Size : 47,52 MB
Release : 2022-07-31
Category : Technology & Engineering
ISBN : 1789182085
Aquaculture production is expanding worldwide in both volume and scope, with a number of new species being introduced to aquaculture every year. Salmon Farming provides an overview of aquaculture production systems focusing on Atlantic salmon farming, which will enable users to: produce broodstock, juveniles and adult fish develop a production plan for juvenile and ongrowing farms evaluate and optimize the key working operations on juvenile and ongrowing farms identify the factors that are important for economic and sustainable production identify the factors that affect the rate of production, how these factors can be changed, and what effects such changes have adopt the best procedures for season-independent smolt production understand water quality requirements and evaluate the suitability based on water analysis prepare documents for production control and propose amendments prepare working plans for smolt production and ongrowing production farms establish maintenance routines/plans for smolt production and ongrowing production estimate the investment and running cost for the main components of smolt and ongrowing farms remain up to date with the laws and regulations that need to be considered in aquaculture production planning internationally stay abreast of new trends in the industry. Salmon Farming gives an overview of aquaculture production systems focusing on Atlantic salmon farming. However, much of the subject coverage and overall structure of the book are directly transferable to other species, with much of the core of the book being species-independent and applicable internationally. 5m Books
Author :
Publisher : Academic Press
Page : 341 pages
File Size : 46,40 MB
Release : 2010-10-27
Category : Technology & Engineering
ISBN : 0123813093
Advances in Marine Biology has been providing in-depth and up-to-date reviews on all aspects of marine biology since 1963 -- over 40 years of outstanding coverage! The series is well-known for both its excellence of reviews and editing. Now edited by Michael Lesser (University of New Hampshire, USA), with an internationally renowned Editorial Board, the serial publishes in-depth and up-to-date content on a wide range of topics that will appeal to postgraduates and researchers in marine biology, fisheries science, ecology, zoology, and biological oceanography. This thematic volume, edited by Geraint Tarling, provides a comprehensive review of the biology of Northern Krill. - Rated "Number 1" in the highly competitive category of Marine & Freshwater Biology by ISI in the 2000 ISI journals citation report - Maintains an Impact Factor of 3.37, the highest in the field - Series features over 35 years of coverage of the research
Author : I. G. Priede
Publisher : Cambridge University Press
Page : 513 pages
File Size : 28,62 MB
Release : 2017-08-10
Category : Nature
ISBN : 1107083826
A comprehensive account of deep-sea fishes, covering evolution, ecology and the potential threats posed by the growing fishing industry.
Author : Maria Baker
Publisher : Oxford University Press, USA
Page : 241 pages
File Size : 45,93 MB
Release : 2020
Category : Science
ISBN : 0198841655
The deep ocean is the planet's largest biome and holds a wealth of potential natural assets. This book gives a comprehensive account of its geological and physical processes, ecology and biology, exploitation, management, and conservation.
Author : J. Gjøsaeter
Publisher : Food & Agriculture Org.
Page : 164 pages
File Size : 50,54 MB
Release : 1980
Category : Nature
ISBN : 9789251009246
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.
Author : Jorge L. Sarmiento
Publisher : Princeton University Press
Page : 527 pages
File Size : 33,6 MB
Release : 2013-07-17
Category : Science
ISBN : 1400849071
Ocean Biogeochemical Dynamics provides a broad theoretical framework upon which graduate students and upper-level undergraduates can formulate an understanding of the processes that control the mean concentration and distribution of biologically utilized elements and compounds in the ocean. Though it is written as a textbook, it will also be of interest to more advanced scientists as a wide-ranging synthesis of our present understanding of ocean biogeochemical processes. The first two chapters of the book provide an introductory overview of biogeochemical and physical oceanography. The next four chapters concentrate on processes at the air-sea interface, the production of organic matter in the upper ocean, the remineralization of organic matter in the water column, and the processing of organic matter in the sediments. The focus of these chapters is on analyzing the cycles of organic carbon, oxygen, and nutrients. The next three chapters round out the authors' coverage of ocean biogeochemical cycles with discussions of silica, dissolved inorganic carbon and alkalinity, and CaCO3. The final chapter discusses applications of ocean biogeochemistry to our understanding of the role of the ocean carbon cycle in interannual to decadal variability, paleoclimatology, and the anthropogenic carbon budget. The problem sets included at the end of each chapter encourage students to ask critical questions in this exciting new field. While much of the approach is mathematical, the math is at a level that should be accessible to students with a year or two of college level mathematics and/or physics.