Related items
Showing items related by metadata.
-
Book (series)Technical studyGlobal fishery resources of tuna and tuna-like species. 2007
Also available in:
This paper reviews the state of fishery resources of tuna and tuna-like species on a global scale, focusing on those most important commercially, i.e. the so-called principal market tuna species. These are classified as tropical tunas (skipjack, yellowfin and bigeye) and temperate tunas (albacore and bluefin [Atlantic, Pacific and southern]). For each tuna and tuna-like species, the document provides: taxonomic and other basic biological information; the development and expansion of the fishery; catch trends; institutional frameworks for regional cooperation in fisheries research, particularly stock assessment; procedures and input information for stock assessment; the status of the stocks; potential improvements in knowledge of the status of the stocks; and the future outlook for this status and catches. -
Book (stand-alone)Technical bookEco-certification for the tuna industry: technical assistance for implementation of a Regional Fisheries Strategy for ESA-IO (IRFS) 2011
Also available in:
No results found.This report presents the findings of a mission that examined the requirements for developing and establishing an eco-certification scheme that is specific to a group of tuna vessel operators and fish processors working in the western Indian Ocean region. “Eco-certification” is assurance that fishery products are from fisheries that have functional harvest rules that protect the target fish resource as well as the environment. Obtaining eco-certification will be challenging as currently there are few effective harvest rules – and to establish such a system requires consensus among the many countries that participate in tuna fishing in the Indian Ocean. This report discusses the lack of harvest rules and other obstacles to eco-certification. Options are presented for progressing the situation, and a long- term plan for eco-certification is proposed. -
Book (series)ProceedingsEstimation of tuna fishing capacity from stock assessment related information.
Workshop to Further Develop, Test and Apply a Method for the Estimation of Tuna Fishing Capacity from Stock Assessment-related Information. La Jolla, California, United States of America, 14–16 May 2007.
2009Also available in:
No results found.These Proceedings include (i) the Report of and (ii) the paper presented at the Workshop to Further Develop, Test and Apply a Method for the Estimation of Tuna Fishing Capacity from Stock Assessment-Related Information. The Workshop was hosted by the Inter-American Tropical Tuna Commission (IATTC) in La Jolla, California, USA, from 14 to16 May 2007. It was organized by FAO’s Japan-funded Project on the “Management of Tuna Fishing Capacity: Conservation and Socio-Economics” in collaboration with and with in-kind support of several international and national fisheries institutions involved tuna fisheries research and management. The paper presented at the Workshop describes peak-to-peak (PP) and general additive modeling (GAM) approaches to estimate fishing capacity and related quantities from stock assessment information. The PP and GAM methods were applied to seven stocks of bigeye, yellowfin and skipjack tuna of the Pacific, Indian and Atlantic Oceans. The estimated trends in overca pacity with both methods were consistent across most of the stocks, showing increasing trends at the beginning of the time series and reaching maximum values during the late 1990s, followed by decreasing trends after that. For most of the stocks analyzed, overcapacity was positive during a part of the time series. Sensitivity tests revealed greater estimates of capacity output when the stock assessment data were most disaggregated. Further tests revealed that the estimates of overcapacity were l ower when low variability in effort deviations was permitted in the stock assessment. The Report of the Workshop outlines the discussions carried out at the Workshop, some proposals for further research, recommendations and conclusions of the Workshops.
Users also downloaded
Showing related downloaded files
-
Book (stand-alone)Technical bookSoil erosion: the greatest challenge for sustainable soil management 2019
Also available in:
Despite almost a century of research and extension efforts, soil erosion by water, wind and tillage continues to be the greatest threat to soil health and soil ecosystem services in many regions of the world. Our understanding of the physical processes of erosion and the controls on those processes has been firmly established. Nevertheless, some elements remain controversial. It is often these controversial questions that hamper efforts to implement sound erosion control measures in many areas of the world. This book, released in the framework of the Global Symposium on Soil Erosion (15-17 May 2019) reviews the state-of-the-art information related to all topics related to soil erosion. -
Book (stand-alone)High-profileState of knowledge of soil biodiversity - Status, challenges and potentialities
Report 2020
2020Also available in:
No results found.There is increasing attention to the importance of biodiversity for food security and nutrition, especially above-ground biodiversity such as plants and animals. However, less attention is being paid to the biodiversity beneath our feet, soil biodiversity, which drives many processes that produce food or purify soil and water. This report is the result of an inclusive process involving more than 300 scientists from around the world under the auspices of the FAO’s Global Soil Partnership and its Intergovernmental Technical Panel on Soils, the Convention on Biological Diversity, the Global Soil Biodiversity Initiative, and the European Commission. It presents concisely the state of knowledge on soil biodiversity, the threats to it, and the solutions that soil biodiversity can provide to problems in different fields. It also represents a valuable contribution to raising awareness of the importance of soil biodiversity and highlighting its role in finding solutions to today's global threats. -
Book (series)FAO journalForests: nature-based solutions for water
No. 251. Vol. 70 2019/1
2019Water – drinkable, usable water – is likely to be one of the most limiting resources in the future, given the growing global population, the high water demand of most agricultural production systems, and the confounding effects of climate change. We need to manage water wisely – efficiently, cost-effectively and equitably – if we are to avoid the calamity of a lack of usable water supply. Forested watersheds provide an estimated 75 percent of the world’s accessible freshwater resources, on which more than half the Earth’s people depend for domestic, agricultural, industrial and environmental purposes. Forests therefore, are vital natural infrastructure, and their management can provide “nature-based solutions” for a range of water-related societal challenges. This edition of Unasylva explores that potential.