Fisheries and Research for Tunas and Tuna-like Species in the Western Central Atlantic


Book Description

In the Western Central Atlantic Fishery Commission (WECAFC) area, large pelagics contribute only about 6% of total landings, but are nonetheless significant for many countries. Large pelagic fishes are caught in all WECAFC states, and within the WECAFC region by several distant water fishing nations. However only 19 of 40 WECAFC Member States report catches to FAO. The fisheries range in scale and technological sophistication from artisanal fishers trolling from canoes to modern commercial longliners and purse seiners (mostly from distant water fishing nations). The available information on development of small-scale and large scale fleets targeting large pelagics, indicates a significant trend of increasing fishing capacity in the countries of the WECAFC region. Several species which are not assessed by ICCAT are of considerable importance in large pelagic fisheries in the WECAFC region. Overall, about half the landings of large pelagics in the WECAFC region are from species which are assessed. Existing institutional mechanisms are not adequate for management of shared or straddling fish stocks and those of highly migratory fish, as per the recent UN Agreement. Any such institution must have linkages with extraregional organisations, primarily ICCAT, and, in order to maximise efficiency and avoid duplication, should also be able to deal with shared, straddling and migratory fish stocks other than pelagics, for example, lobster and reef fishes with planktonic early life history stages. WECAFC, with modifications to its statutes, appears to be the most feasible existing organisation to adopt such a role.




Global Fishery Resources of Tuna and Tuna-like Species


Book Description

Of the principal market species, the status of three of the 23 stocks is unknown; namely, albacore in the Mediterranean Sea and skipjack in the Atlantic (two stocks).




The Future of Bluefin Tunas


Book Description

The most thorough and current account of scientific research on bluefin tunas—the largest, most sought-after tunas in the world Bluefin tunas are dominant keystone predators known for their impressive size, strength, endurance, and speed. Electronic tags have revealed that they can dive to great depths (over 6000 feet) and migrate vast distances—from frigid subpolar seas to warm tropical waters—for spawning. Prized for their rich taste and unique texture, bluefin tunas are also a worldwide commodity of great value. However, over the past few decades, overfishing throughout their range has led to significant population reductions. In The Future of Bluefin Tunas, Barbara A. Block brings together renowned bluefin experts from 15 different countries to share the latest information on the science, fisheries policy, and management decisions related to each of the three species within the Thunnus group—Atlantic, Pacific, and Southern. Synthesizing basic and applied research, the book delves into every aspect of these majestic fish, from their life history and genetic makeup to their ecology and migrations. Ichthyologists and marine scientists dedicated to the study of these fishes report on the latest stock assessments, explore the results of advances such as biologging and DNA sampling, and assess the potential of bluefin tuna aquaculture. The Future of Bluefin Tunas provides critical research findings to inform decisions that will impact tunas and the ocean ecosystems they affect. Scientists, fisheries managers, policymakers, and marine conservationists will take away key data from this timely volume to help them ensure these remarkable fish continue in perpetuity.




Review of biological data, spatial distribution of the stocks and ecological connectivity between areas beyond national jurisdiction and the exclusive economic zones in the Western Central Atlantic Fishery Commission region


Book Description

This review was developed as a project in response to the needs of the Intersessional Working Group of WECAFC in its task of identifying key options and priorities. The review describes a group of selected species that are considered to be important to Member States of the WECAFC. It classifies them into transboundary and straddling/highly migratory stocks and their fisheries and provides information on the state of exploitation of the selected species. The review also considers the ecological connectivity between the high seas and the EEZs of coastal nations. Lastly, it highlights issues that need to be addressed to generate a sound scientific knowledge base in support of the strategic reorientation of the Commission.




Advances in Tuna Aquaculture


Book Description

Advances in Tuna Aquaculture: From Hatchery to Market provides detailed overviews on the current status of tuna fisheries, fattening, and farming practices, as well as advances in closed-cycle tuna aquaculture. Contributors are renowned scientists, internationally recognized as authorities in their fields. This book addresses all basic and applied aspects of tuna aquaculture, presenting and discussing the global status of tuna fisheries, reproduction, broodstock management, spawning, larval rearing and early developmental stages including nursery and grow out methods. It presents incorporates the most comprehensive and updated data, statistics, and trends in tuna fisheries and aquaculture, covering and addresses a variety of topics ranging fromfrom endocrinology, nutrition, diseases, and genetics to economics and markets. It covers describes recent up-to-date progress on tuna aquaculture and hatchery development. It also provides a synopsisn overview of the challenges presently confronted by tuna aquaculturists,facing tuna aquaculture and and offers innovative views on the challengesbottle-neck issues faced by the industry with the current shift from fisheries to fattening to closed-cycle aquaculture. This is the first book to encompass all aspects related to the tuna aquaculture industry, and merges them into a state-of-the-art compendium that will serve as seminal reference for students, researchers, and professionals working with tuna biology, fisheries, and aquaculture worldwide. - Incorporates and reviews the most recent information on tuna fisheries and aquaculture - Presents the most innovative production technologies in tuna aquaculture, from hatchery to market - Includes important information on tuna, derived from industry experience and academic research on larval rearing technology and grow out operations - Encompasses and discusses key topics such as genetics, diseases, nutrition, endocrinology, and reproduction, as well as developments, challenges, and future opportunities in tuna aquaculture - Provides the latest scientific methods and technologies to maximize efficiencies and production - Presents the independent and collective assessments, viewpoints, and visions of various scientists, all internationally recognized as authorities in the field




The Bluefin Tuna Fishery in the Bay of Biscay


Book Description

This open access book is an original contribution to the knowledge on fishing and research associated with one of the most enigmatic fish of our seas: bluefin tuna, Thunnus thynnus (L.). Based on available evidence, it reconstructs the possible methods used to catch large spawners in the Strait of Gibraltar thousands of years ago and describes the much more recent overfishing that led to a great reduction in the catches of the trap fishery on the area and the disappearance of the northern European fisheries. It is the first book to relate the overfishing of juvenile fishes in certain areas to the decline of large spawners in other very distant areas, revealing one of the main underlying causes of this decline, which has remained a mystery to the fishing sector and scientists alike for over 50 years. This finding should serve to prevent similar cases from arising in the future.




Report and Documentation of the International Workshop on Factors Contributing to Unsustainability and Overexploitation in Fisheries, Bangkok, Thailand, 4-8 February 2002


Book Description

This publication contains the report of an international workshop (including discussion papers and notes submitted by participants) and the conclusions and recommendations adopted regarding sustainable fisheries management. Issues discussed include: key aspects contributing to fisheries unsustainability and overexploitation; the best practical approaches to address these factors; and whether current international fisheries instruments sufficiently address these issues.




Review of the State of World Marine Fishery Resources


Book Description

This publication updates the regular reviews of the state of the world's marine fishery resources, based mainly on official catch statistics throughout 2002 and relevant stock assessment and other complementary information available until 2004. It considers the global situation and major trends of world marine capture fish production, with detailed information for each FAO statistical area about catches and current state of exploitation, major trends and developments and stock assessment work undertaken in support of fisheries management. Other issues covered include: tunas and tuna-like species resources, world squid resources, deepwater fisheries, and long-term climate variability.




Tuna Wars


Book Description

Historically, whenever tuna was hauled ashore, the sounds of battle were never far away. ‘Tuna Wars’ tells the untold story of the power struggles emerging around tuna, from the distant past to your present-day dinner table. In the ancient past, the giant tuna was the first fish to become the basis of a large-scale industry and a ‘global’ trade that created fortunes: Hannibal was able to finance his elephant campaign on Rome thanks to tuna. From the Middle Ages on, a tuna fishing monopoly on Spain’s southern coast allowed the nobility to completely dominate the area and even lead the ‘invincible’ Armada. When the markets for tuna increased exponentially thanks to technical advances, tuna eventually became a billion-dollar business and one of the most-consumed fish species worldwide. But this massive expansion came at a price. An 18th century monk in Madrid was the first to warn that tuna fisheries needed to be run sustainably for the sake of future generations. And the issue of sustainability would go on to become a game-changer in the modern tuna wars, characterized by new alliances and partnerships, hybrid warfare and commercial power struggles. In addition to accompanying you through the history of tuna and sharing insights into fisheries science and approaches to sustainably managing fisheries, Tuna Wars offers practical guidance on choosing sustainably fished tuna. In short, it will tell you everything you ever wanted to know about tuna, but were afraid to ask.




Second Meeting of the Technical Advisory Committee of the FAO Project Management of Tuna Fishing Capacity: Conservation and Socio-economics


Book Description

This publication contains papers relating to the FAO project on tuna fisheries management. Topics discussed include: the development of tuna fisheries and resources, trends in tuna catches and market influences, the status of tuna stocks, fishing capacity of industrial tuna purse-seine and longline fleets, a global study of non-industrial tuna fisheries, problems of illegal, unreported and unregulated fishing and overcapacity of tuna fishing vessels.