Review of the state of the world fishery resources: Inland fisheries


Book Description

The FAO Fishery and Aquaculture Circular C942 Revision 3 (C942 Rev. 3) updates and expands the scope of previous revisions of the circular. C942 Rev. 3 is an important baseline document, intended to assist in the global understanding of inland fisheries and inform dialogue on their current and future role. The third revision reviews the status and trends of inland fisheries catch at global, continental and subcontinental levels. It places inland capture fisheries in the context of overall global fish production, and calls attention to the importance of inland capture fisheries with respect to food security and nutrition and the Sustainable Development Goals. It quantifies global inland fisheries resources in terms of food production, nutrition, employment, economic contribution with respect to those countries/regions or subnational areas where they are important. A characterization approach to distinguish large-scale and small-scale fishing operations and their relative contributions is provided. The review provides estimated economic values of inland fisheries, as well as a valuation of potential replacement cost of these (in terms of dollars, other resources such as land and water, feeds). There is also an analysis of the extent and economic value of recreational inland fisheries. The contribution to employment and the gender differences related to this are quantified. The linkages between inland fisheries and biodiversity are also explored. C942 Rev. 3 discusses ways to measure and assess inland fisheries, in particular, how to establish more accurately inland fishery catches in the many situations where there are challenges to collection of catch statistics.




Freshwater Microplastics


Book Description

This book is open access under a CC BY 4.0 license. This volume focuses on microscopic plastic debris, also referred to as microplastics, which have been detected in aquatic environments around the globe and have accordingly raised serious concerns. The book explores whether microplastics represent emerging contaminants in freshwater systems, an area that remains underrepresented to date. Given the complexity of the issue, the book covers the current state-of-research on microplastics in rivers and lakes, including analytical aspects, environmental concentrations and sources, modelling approaches, interactions with biota, and ecological implications. To provide a broader perspective, the book also discusses lessons learned from nanomaterials and the implications of plastic debris for regulation, politics, economy, and society. In a research field that is rapidly evolving, it offers a solid overview for environmental chemists, engineers, and toxicologists, as well as water managers and policy-makers.




African Water Resource Database: Concepts and application case studies. Spatial analysis for inland aquatic resource management


Book Description

The African Water Resource Database (AWRD) is a set of data and custom-designed tools, combined in a geographic information system (GIS) analytical framework, aimed at facilitating responsible inland aquatic resource management with a focus on inland fisheries and aquaculture. It thus provides a valuable instrument to promote food security. The AWRD data archive includes an extensive collection of datasets covering the African continent, including: surface waterbodies, watersheds, aquatic species, rivers, political boundaries, population density, soils, satellite imagery and many other physiographic and climatological data. This technical paper is the first of two publications about the AWRD, and it gives a general overview addressed both to administrators and managers, as well as for professionals in technical fields. The second part of this technical paper is available separately (ISBN 9789251056479).




African Water Resource Database: Technical manual and workbook. Technical manual


Book Description

The African Water Resource Database (AWRD) is a set of data and custom-designed tools, combined in a geographic information system (GIS) analytical framework, aimed at facilitating responsible inland aquatic resource management with a focus on inland fisheries and aquaculture. It thus provides a valuable instrument to promote food security. The AWRD data archive includes an extensive collection of datasets covering the African continent, including: surface waterbodies, watersheds, aquatic species, rivers, political boundaries, population density, soils, satellite imagery and many other physiographic and climatological data. This technical paper is the second of two publications about the AWRD, and it includes a technical manual for spatial analysts and a workbook for university students and teachers. The first part of this technical paper is available separately (ISBN 9789251057407).




Africa in Contemporary Perspective


Book Description

An important feature of Ghanaian tertiary education is the foundational African Studies Programme which was initiated in the early 1960s. Unfortunately hardly any readers exist which bring together a body of knowledge on the themes, issues and debates which inform and animate research and teaching in African Studies particularly on the African continent. This becomes even more important when we consider the need for knowledge on Africa that is not Eurocentric or sensationalised, but driven from internal understandings of life and prospects in Africa. Dominant representations and perceptions of Africa usually depict a continent in crisis. Rather than buying into external representations of Africa, with its lacks and aspirations for Western modernities, we insist that African scholars in particular should be in the forefront of promoting understanding of the pluri-lingual, overlapping, and dense reality of life and developments on the continent, to produce relevant and usable knowledge. Continuing and renewed interest in Africas resources, including the land mass, economy, minerals, visual arts and performance cultures, as well as bio-medical knowledge and products, by old and new geopolitical players, obliges African scholars to transcend disciplinary boundaries and to work with each other to advance knowledge and uses of those resources in the interests of Africas people.




Inland Waters - Ecology, Limnology, and Environmental Protection


Book Description

Inland water primarily includes rivers, lakes, reservoirs, and wetlands. It also includes ponds, streams, groundwater, reservoirs, springs, cave waters, and floodplains. Most inland water bodies are lakes. Inland waters are unique ecosystems offering services and habitat resources. Food, fiber, medicine, climate management, flood and natural disaster mitigation, nutrient recycling, and drinking water purification are among the services they offer for human progress and poverty reduction. These ecosystems are also necessary for the generation of energy, transportation, leisure, tourism, and providing a home for flora and fauna. This book includes updates and recent research on all aspects of inland waters and the related field ( ecology, limnology, and environment protection). In this book, different chapters are presented with different sections that include water pollution and treatment, the hydromorphological quality of inland water, and the ecology and limnology of inland water. So, in this book, readers and scientists from different scientific fields will obtain updated information on all aspects of inland waters.




The Statesman's Year-Book 1993-94


Book Description

The classic reference work that provides annually updated information on the countries of the world.