نتایج جستجو برای: aquaculture statistics
تعداد نتایج: 188452 فیلتر نتایج به سال:
global aquaculture production has more than tripled during the last 15 years, and aquaculture is expected to account an increasing share in global seafood production. there are large differences among countries in the rate of growth and development of aquaculture. this review tries to explain the progress and problems of aquaculture during three last decades in iran. the total production of ira...
This article analyzes spatial and temporal changes of aquaculture land use in Yunlin County, Taiwan, and discusses the driving forces for these changes. Digital land-use maps and satellite imagery for 1982, 1988, 1994, and 2002 were used to extract aquaculture areas. A geographic information system was used to derive changes in aquaculture areas and to compute the spatial clustering statistics ...
Aquaculture is one of the fastest growing global food animal production industries and, according to the United Nations Food and Agriculture Organization (FAO), now accounts for nearly half of global food fish supply. This proportion is anticipated to grow in the coming decades as global capture fisheries continue to stagnate and global demand for seafood continues to rise. As the significance ...
Africa has big potential for fi sh farming with 37 per cent of its surface area suitable for artisanal and 43 per cent suitable for commercial fi sh production (Aguilar-Manjarrez and Nath 1998). Although Africa contributed less than 1 per cent to global aquaculture production (251 000 t in 1999), the production has been expanding since 1984 at a rate equal to or greater than the global rate, al...
In recent years, cage aquaculture has been introduced as modern technology in the world. Although the use of cages for fish’s holding and transporting for short periods can return two centuries ago in Asian, commercial cage aquaculture was pioneered in Norway in the 1970s and 1980s. Today, due to population growth, climate change and more attention to the productivity of water use in the aquacu...
www.worldfishcenter.org Reducing poverty and hunger by improving fisheries and aquaculture Much of fish consumed by the poor are caught by household members and traded in local markets. These fish are rarely or poorly included in national statistics, and it is therefore difficult to estimate precisely the real contribution of fish to the rural poor households. This report is the first global ov...
l Ecohistories of aquaculture suggest that aquaculture is a natural part of human development throughout history and that modern, industrial aquaculture could strengthen its social and ecological roots by articulating its evolution along a sustainability trajectory and by adopting fully the Food and Agriculture Organization (FAO) ecosystems approach to aquaculture (EAA; Soto et al., 2008). The ...
The “Aquaculture Big Numbers” research project seeks to: provide baseline information on the present status of the aquaculture sector from a human development perspective; identify the types and numbers of people employed by the sector; and explore the role of aquaculture in providing social and economic services at a global level, with a particular emphasis on small-scale stakeholders. The res...
Citation: Olsen Y (2015) How can mariculture better help feed humanity? Front. Mar. Sci. 2:46. The primary production of the marine and the terrestrial domains are similar, ∼49 and 56 Gt C year −1 , respectively (Field et al., 1998), and the marine primary production must likely be more readily available for grazing animals because it is primarily in the form of unicellular phytoplankton. We ha...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید