Download or read book Atlantic Cod Gadus Morhua Feeding for Ecosystem based Management and Sustainability in Newfoundland and Labrador Marine Ecosystems written by Kyle Krumsick and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study is to challenge long-standing assumptions on Atlantic cod (Gadus morhua) feeding around Newfoundland and Labrador, Canada, and provide information that will be useful for the next generation of ecosystem-based models. Using stomach content analysis and published cod stomach data I address two primary questions: Do cod cease feeding during spawning? Does the cod diet reflect changes in prey assemblages in the ecosystem? Spatial and temporal diet variation was additionally analyzed. Regional variation was paramount such that diet diversity, mirroring ecosystem diversity, increased with decreasing latitude. Contrary to current assumptions, feeding continued through spawning. The stomach content contribution of shrimp reflect environmental trends in these prey assemblages over the past 65 years, while crab, a minor part of the cod diet, does not reflect abundance changes. Capelin appeared preferably consumed when encountered. Cod are not complete generalist feeders but select for certain energy rich prey.
Download or read book Atlantic Cod written by George A. Rose and published by John Wiley & Sons. This book was released on 2019-02-26 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive handbook, covering all aspects of the Atlantic cod including the biology, ecology, life histories, behaviour, commercial exploitation and conservation Not only is Atlantic cod one of the most valuable food fish in the world’s oceans, it is an important component of North Atlantic ecosystems and has been subject to much research into its biology, ecology and exploitation. After hundreds of years of exploitation, overfishing in the last half of the 20th Century caused many stocks to collapse, most famously the Northern cod stock off Newfoundland and Labrador, Canada. Since then, most cod stocks have been better researched and managed, but remain in a variety of states, from fully recovered to continued decline. This book, written by world experts, describes that research and management, and the importance of cod and its fisheries on North Atlantic cultures and economies, with impacts well beyond the range of the species. Atlantic Cod: Bio-Ecology of the Fish offers insightful chapter coverage of cod nomenclature, taxonomy, phylogeny and morphology; physiology and ecophysiology; reproduction and spawning behavior; early life history and pre-recruitment processes; migrations, movements and stock identity; feeding, growth and energetics; the place of cod in the ecosystem; the exploitation of cod through history and present day commercial fisheries and precautionary management for sustainable fisheries; impacts of climate change on cod biology and ecology; and the future of the species and its fisheries. Discusses the major commercial importance of Atlantic cod through history Provides a comprehensive treatment of the bio-ecology of the most researched and highly exploited fully marine species Examines how the decline (and recovery) of cod stocks is of great political and scientific interest An essential purchase for marine fisheries scientists Atlantic Cod: Bio-Ecology of the Fish is a vital book for all fisheries scientists, managers and fish biologists.
Download or read book Managed Annihilation written by Dean Bavington and published by UBC Press. This book was released on 2011-01-01 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Newfoundland and Labrador cod fishery was once the most successful commercial fishery in the world. When it collapsed in 1992, many pointed to failures in management, such as uncontrolled harvesting, as likely culprits. Managed Annihilation makes the case that the idea of natural resource management itself was the problem. The collapse occurred when the fisheries were state-managed and still, two decades later, there is no recovery in sight. Although the collapse raised doubts among policy-makers about their ability to understand and control nature, their ultimate goal of control through management has not wavered and has been transferred from wild fish to fishermen and farmed cod.
Download or read book Berkshire Encyclopedia of Sustainability 5 10 written by Robin Kundis Craig and published by Berkshire Publishing Group. This book was released on 2012-02-27 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecosystem Management and Sustainability analyzes myriad human-initiated processes and tools developed to foster sustainable natural resource use, preservation, and restoration. It also examines how humans interact with plant, marine, and animal life in both natural and human-altered environments. Experts explain the complex ecosystem relationships that result from invasive species, roads, fencing, and even our homes by addressing topics such as fire and groundwater management, disturbance, and ecosystem resilience. Because most people in the 21st century live in urban environments, the volume pays special attention to the ecology of cities, with detailed coverage on topics ranging from urban agriculture to landscape architecture. The volume focuses on how ecosystems across the world can be restored, maintained, and used productively and sustainably.
Download or read book Sustainable Fishery Systems written by Anthony Charles and published by John Wiley & Sons. This book was released on 2023-08-14 with total page 677 pages. Available in PDF, EPUB and Kindle. Book excerpt: SUSTAINABLE FISHERY SYSTEMS An up-to-date and interdisciplinary guide to sustainable fisheries Fisheries, whether small-scale or large-scale, are filled with complexity and uncertainty. Making the right decisions to successfully manage fisheries for sustainability and resilience requires a systems approach — including both natural and human elements, and their many interactions. To understand fisheries, and how they change over time, a diverse range of fishery knowledge must be brought together. Sustainable Fishery Systems, 2nd edition meets these needs. The new edition provides essential information that can be readily applied within government, community, industrial, academic and research settings. Sustainable Fishery Systems, 2nd edition retains the first edition’s emphasis on themes such as sustainability, resilience, uncertainty, complexity, and conflict, and expands its treatment of topics that have, since the first edition’s publication, become crucial to consider in the field of fisheries. As a result, readers will find: Updated and expanded coverage of topics including coastal conservation, ecosystem-based management, co-management, community-based management, and more New chapters covering connections between fisheries and marine protected areas, biodiversity conservation, climate and fisheries, and multi-sectoral management A more detailed introduction to the “systems” perspective of fisheries, reflecting the substantial growth in that subject’s importance, and covering in detail the natural, human and governance aspects of fisheries. Sustainable Fishery Systems, 2nd edition is an indispensable interdisciplinary resource for educators, researchers, government agencies, and fisheries managers.
Download or read book Seasonal Abundance Feeding Ecology and Biology of Atlantic Cod Gadus Morhua in the Pack Harbour and Domino Region of the Labrador Coast During the Summer and Early Fall 1981 written by Robert A. Buchanan and published by . This book was released on 1982 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coastal fisheries Emerging initiatives toward the sustainability objectives written by Luca Bolognini and published by Frontiers Media SA. This book was released on 2023-09-07 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Participation in Fisheries Governance written by Tim S. Gray and published by Springer Science & Business Media. This book was released on 2006-06-30 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: The central message of the book is that stakeholder participation in the governance of fisheries is beneficial, but confers responsibilities as well as rights: all stakeholders have a public duty to act as stewards of the marine environment. With chapters by leading scholars and participants in fisheries governance, this book recounts contemporary techniques of public participation, and develops a new concept of environmental stewardship as a form of fisheries governance.
Download or read book Large Marine Ecosystems of the North Atlantic written by K. Sherman and published by Elsevier. This book was released on 2002-04-16 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first book to provide assessments of multidecadal changes in resources and environments of the Large Marine Ecosystems (LMEs) of the North Atlantic. Using the case study method, researchers examine the forces driving the changes and actions underway aimed at turning the corner from declining trends in biomass yields, toward recovery of depleted species populations and improvements in ecosystem integrity. Recently a distinguished group of 24 scientists argued eloquently that a new Sustainability Science was emerging that was focused on "meeting fundamental human needs while preserving the life support systems of planet Earth". The contributions contained in this volume are at the cutting edge of Sustainability Science and the results presented by the contributors are pertinent to one of the core questions: "How are long-term trends in environment and development, including consumption and population, reshaping nature-society interactions in ways relevant to sustainability?" (Science Vol. 292, 27 April 2001). The case studies demonstrate the utility of an ecosystem-based approach to the assessment and management of biomass yields and species sustainability. Movements toward ecosystem-based management have emerged from the case studies on the initiation of recoveries of several depleted groundfish stocks of the US Northeast Shelf LME; the collapse of the Newfoundland-Labrador Shelf cod; the assessment of physical and biological changes on the Scotian Shelf, West Greenland Shelf, Iceland Shelf LME, and the Faroe Plateau, the North Sea, and the Barents Sea LMEs. Uncertainties, with regard to environmental and human-generated forcing, are addressed in assessment of the states of the Iberian Coastal and Biscay-Celtic LMEs, and in broad-scale studies of the influences at the base of the food chain of climatic variability on the productivity and biodiversity of plankton communities of the North Atlantic. The volume concludes with an insightful perspective on the approaches used and the results reported by the eminent marine scientist and former President of ICES, Professor Gotthilf Hempel.
Download or read book Handbook of Marine Fisheries Conservation and Management written by R. Quentin Grafton and published by OUP USA. This book was released on 2010-01-21 with total page 785 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook is the most comprehensive and interdisciplinary work on marine conservation and fisheries management ever compiled. Its many valuable contributions offer a way forward to both understanding and resolving the multifaceted problems facing the world's oceans.
Download or read book Beyond Fishing in the Newfoundland and Labrador Marine Shelf Ecosystem written by Darrell Mullowney and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary objective of this thesis is to identify and investigate important climatic and bottom-up processes affecting the marine shelf ecosystem off southern Labrador and eastern Newfoundland (Northwest Atlantic Fisheries Organization Divisions 2J3KLNO). The analyses are intended to extend the breadth of understanding for important ecosystem processes beyond the well-established impacts from overfishing. Knowledge gained from research on key commercial species is intended to address how ecological phenomena have affected the fisheries in recent decades and may be driving present changes in the ecosystem. Apart from advancing and informing science, the information presented is intended to benefit a wide audience of industry stakeholders including governments, harvesters, processors, and environmental interest groups. Four research chapters are chronologically themed from the collapse of northern cod (Gadus morhua) in the late 1980s / early 1990s, to the delayed recovery of capelin (Mallotus villosus) and cod, to factors presently affecting the decline of snow crab (Chionoecetes opilio). The first two research chapters examine the impacts of temperature and diet in affecting physiological growth and performance of juvenile and adult northern cod during and following stock collapse. The third research chapter focuses on factors affecting the low abundance of capelin since an abrupt decline in the early 1990s, while the final research chapter reviews top-down and bottom-up processes contributing to the rise and fall of snow crab. Collectively, these works contribute to improved understanding of some of the most important ecosystem processes influencing Newfoundland and Labrador fisheries. Temperature and food limitation were found to have a large impact on the Newfoundland and Labrador marine shelf ecosystem. Both factors either directly or indirectly regulated the productivity of each examined species. Recent warming coupled with increases in zooplankton abundance and an improving match between capelin spawning times and the spring bloom are shown to be supporting increasing abundances of capelin and by extension cod. Meanwhile, warming has directly led to a decline in snow crab productivity. Overall, the results suggest the Newfoundland and Labrador Shelf ecosystem is experiencing a shift in structure and forcing from being predominately bottom-up over the past two decades to a more balanced state wherein both bottom-up and top-down forcing are prevalent. To address concerns of management, advice based on the present findings is provided and putative future directions of the ecosystem, fisheries, and climate are discussed.
Download or read book Biology and Ecology of Atlantic Cod written by Nataliia Kulatska and published by CRC Press. This book was released on 2024-10-31 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atlantic cod is an important fish species in human history and continues to be a major influence on North Atlantic fisheries management, as stock collapses and recoveries impact coastal communities and shelf sea food webs. This book provides an overview of Atlantic cod biology and ecology, focussing on regional differences in life-history and stock dynamics that affect productivity and the challenges faced by management. By comparing the success of management approaches and the local influence of changing climate and food webs, the book highlights the different pressures facing stocks and identifies knowledge gaps across the species’ range.
Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 2013 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Resident Fish Production Ecosystem Carrying Capacity and Population Dynamics of Atlantic Cod Gradus Morhua in Gilbert Bay Labrador written by Liuming Hu and published by . This book was released on 2007 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Influences on the Distribution and Transport of Atlantic Cod Gadus Morhua Eggs and Larvae in Coastal Newfoundland written by Ian Robert Bradbury and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 2000 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fish Catching Methods of the World written by Otto Gabriel and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the sixteen years since the last edition of Von Brant’s classic work was published, fishing and fisheries have undergone vast changes. Not only has there been great progress in the development of new tools, materials and techniques, but the industry has seen an increasing need to address controversial issues such as declining fish stocks, enormous quantities of bycatch and discard and the impact of towed fishing gear on the environment. Fully revised and updated to reflect such changes, the fourth edition of this widely read and popular book offers: A unique, comprehensive survey of the evolution of fishing methods throughout the world Approximately 750 illustrations showing the extensive range of methods, techniques and equipment used in fishing across the globe Fishing gear classified according to the FAO system Additional chapters: Fishing Effects on Fish Stocks and Environment and Fishery and Gear Research All researchers, fisheries scientists, fisheries students, administrators and libraries in universities and research establishments where fish and fisheries are studied and taught will find this book a valuable addition to their shelves. Commercial and sports fishermen will also find Fish Catching Methods of the World a fascinating and vital reference.
Download or read book Seasonal Abundance Feeding Ecology and Biology of Atlantic Cod Gadus Morhua in the Pack Harbour and Domino Region of the Labrador Coast During the Summer and Early Fall 1981 written by Robert A. Buchanan and published by . This book was released on 1983 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
