Related items
Showing items related by metadata.
-
DocumentOther documentSecond report of mesh selection studies conducted in the People's Democratic Republic of Yemen on the cuttlefish Sepia pharaonis 1982
Also available in:
No results found.This paper describes a repeat of an earlier study by the authors, concerning the mesh selection properties of trawl cod-ends of various mesh sizes on the cuttlefish Sepia pharaonic. A brief resume of the findings is as follows: the estimated 50% selection lengths with 95% confidence limits for single braided polyethylene cod-ends of 12.4 cm, 13.6 cm and 16.8 cm mesh sizes were 17.87+0.28 cm, 20.74+- 0.53 cm and 26.95+-1.07 cm; the 50% selection lengths and selection ranges were very similar to t hose obtained in the earlier study in respect to the 12.4 cm cod-end, but higher in respect to the 13.6 cm cod-end; the 16.8 cm cod-end had not been previously used; the previously held assumption that the 50% selection lengths and cod-end mesh sizes were proportionally related was seen as inappropriate, and hence also the estimation of selection factors; the more appropriate relationship was seen to be one of non-proportional linearity, and the regression equation considered most compatible wit h the observations as 50% selection length (cm)=2.03 mesh size(cm) -7.41; for a chosen value of the 50% selection length, this equation gives substantially different values for the choice of appropriate cod-end mesh size, than the selection factors estimated from the earlier study. -
DocumentOther documentRevised stock assessment for the cuttlefish Sepia pharaonis taken off the coast of the People's Democratic Republic of Yemen 1981
Also available in:
No results found.This paper describes a revised stock assessment for the cuttlefish Sepia pharaonis inhabiting waters off the People's Democratic Republic of Yemen. It differs from earlier assessments in that the male and female cuttlefish are considered separately. -
DocumentOther documentPreliminary stock assessment for the cuttlefish Sepia pharaonis taken off the coast of the People's Democratic Republic of Yemen 1979
Also available in:
No results found.This paper describes a preliminary stock assessment for the cuttlefish Sepia pharaonis inhabiting waters off the People’s Democratic Republic of Yemen. It is principally based on the catch and effort records for the commercial fleet.
Users also downloaded
Showing related downloaded files
-
BookletHigh-profileFAO Strategy on Climate Change 2022–2031 2022The FAO Strategy on Climate Change 2022–2031 was endorsed by FAO Council in June 2022. This new strategy replaces the previous strategy from 2017 to better FAO's climate action with the Strategic Framework 2022-2031, and other FAO strategies that have been developed since then. The Strategy was elaborated following an inclusive process of consultation with FAO Members, FAO staff from headquarters and decentralized offices, as well as external partners. It articulates FAO's vision for agrifood systems by 2050, around three main pillars of action: at global and regional level, at country level, and at local level. The Strategy also encourages key guiding principles for action, such as science and innovation, inclusiveness, partnerships, and access to finance.
-
BookletCorporate general interestEmissions due to agriculture
Global, regional and country trends 2000–2018
2021Also available in:
No results found.The FAOSTAT emissions database is composed of several data domains covering the categories of the IPCC Agriculture, Forestry and Other Land Use (AFOLU) sector of the national GHG inventory. Energy use in agriculture is additionally included as relevant to emissions from agriculture as an economic production sector under the ISIC A statistical classification, though recognizing that, in terms of IPCC, they are instead part of the Energy sector of the national GHG inventory. FAO emissions estimates are available over the period 1961–2018 for agriculture production processes from crop and livestock activities. Land use emissions and removals are generally available only for the period 1990–2019. This analytical brief focuses on overall trends over the period 2000–2018. -
DocumentBulletinNon-wood news
An information bulletin on Non-Wood Forest Products
2007Also available in:
No results found.Behind the new-look Non-Wood News is the usual wealth of information from the world of NWFPs. The Special Features section covers two different aspects of NWFPs: a specific product (bamboo) and a developing market (cosmetics and beauty care). Bamboo is versatile: it can be transformed, for example, into textiles, charcoal, vinegar, green plastic or paper and can also be used as a food source, a deodorant, an innovative building material and to fuel power stations. Reports indicate that natural c osmetics and beauty care are a huge global market, with forecasts indicating an annual growth of 9 percent through 2008. The Special Feature on Forest cosmetics: NWFP use in the beauty industry builds on this and includes information industry interest and marketing strategies (consumers are being drawn to natural products and thus their content is emphasized). As can be seen from the articles on shea butter in Africa and thanakha in Myanmar, many societies have always used and benefited from nat ural cosmetics. This issue includes other examples of traditional knowledge, such as the uses of the secretions of a poisonous tree frog in Brazil and the use by the traditional healers in India of allelopathic knowledge.