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| Registros recuperados: 33 | |
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| Шульман, Г. Е.; Никольский, В. Н.; Юнева, Т. В.; Щепкина, А. М.; Бат, Л.; Кидейш, А. Е.. |
| Рассмотрена многолетняя динамика содержания жира у шпрота и анчоуса Чёрного моря как индикаторов обеспеченности пищей в связи с температурой воды, концентрацией фитопланктона, величинами запасов и уловов этих рыб. Глобальным климатическим фактором, оказывающим прямое и косвенное влияние на обеспеченность мелких пелагических рыб Чёрного моря пищей, является температура. Региональные факторы, воздействующие на состояние шпрота и анчоуса, – пищевая конкуренция, речной сток и загрязнение водной среды. |
| Tipo: Journal Contribution |
Palavras-chave: Шпрот; Анчоус; Содержание жира; Обеспеченность пищей; Температура; Конкуренция; Фитопланктон; Запасы и уловы; Чёрное море; Sprat; Anchovy; Fat content; Food supply; Temperature; Competition; Phytoplankton; Stocks and yields; Black Sea; Камса; Вміст жиру; Забезпеченість їжею; Конкуренція; Фітопланктон; Вилови; Чорне море. |
| Ano: 2007 |
URL: http://repository.ibss.org.ua/dspace/handle/99011/854 |
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| Seguineau, Catherine; Soudant, P; Moal, Jeanne; Delaporte, Maryse; Miner, Philippe; Quere, Claudie; Samain, Jean-francois. |
| The present study tested two techniques for dietary supplementation of Crassostrea gigas spat with PUFA, such as arachidonic acid (AA). The first technique consisted of a preliminary enrichment and growth of an algal concentrate (T-ISO, Isochrysis sp.) with AA dissolved in an ethanol solution, the whole culture then being fed to the spat. This enrichment increased the AA weight percentage in T-ISO neutral and polar lipids from 0.6 to 22.4% and from 0.4 to 6.8%, respectively. The second delivery technique was direct addition separately of free AA dissolved in ethanol solution and algal concentrate (T-ISO + AA) to the spat-rearing tank. To test the efficiency of these delivery techniques, oyster spat were supplemented with AA-enriched T-ISO, T-ISO + AA, and... |
| Tipo: Text |
Palavras-chave: Food supply; Arachidonic acid; Spat; Crassostrea gigas; Dietary. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-1094.pdf |
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| Blanchet, Aline; Dubois, Stanislas; Hily, Christian; Rochette, Sebastien; Le Goaster, Edouard; Guillou, Monique. |
| Mixed beds of Ophiocomina nigra and Ophiothrix fragilis (Echinodermata, Ophiuroidea) are usually predominated by O. fragilis and are reported to be stable over time. The Bay of Brest (Brittany, France) is a highly productive ecosystem where both species co-occur in the main central part. Using a geostatistical approach, we tested for changes in O. nigra and O. fragilis density and total biomass patterns between 1987 and 2011. Our results highlighted an increase in O. nigra population size and the induction of a spatial shift of the co-occurring O. fragilis. O. nigra increased similar to 5 times in density and covered almost all the study area, while its density-dependent biomass increased similar to 3 times (22 t km(-2), ash-free dry mass) between 1987 and... |
| Tipo: Text |
Palavras-chave: Echinoderm; Ophiocomina nigra; Ophiothrix fragilis; Food supply; Kriging method; Suspension-feeder. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00090/20136/17782.pdf |
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| Webb, Patrick; von Braun, Joachim; Yohannes, Yisehac. |
| This study argues that famines are preventable. What was once a universal threat to human life is now primarily in Sub-Saharan Africa. Africa is likely to be the only continent to experience a continued high level of famine mortality during the 1990s, as well as an increase in absolute poverty. Therefore, the current challenge facing policymakers and research organizations such as IFPRI is to reduce the negative effects of famine in Africa and to lay the foundations for its longer- term eradication. This research by Patrick Webb, Joachim von Braum, and Yisehac Yohannes was designed to contribute to a better understanding of the root causes of famine and thereby to identify appropriate policies and projects for famine mitigation. As part of a larger IFPRI... |
| Tipo: Report |
Palavras-chave: Famines; Ethiopia; Droughts; Government policy; Food supply; Agricultural and Food Policy. |
| Ano: 1992 |
URL: http://purl.umn.edu/37973 |
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| von Braun, Joachim; de Haen, Hartwig; Blanken, Juergen. |
| Rapid population growth in agroecologies that are already under high population pressure poses a major challenge for development policy. It becomes an even greater challenge in complex agroecologies where little new technology for rapid agricultural expansion is available. The mountain zones of the Zaire-Nile Divide in Central Africa present an example of such a challenging environment where agriculture has encroached onto marginal zones, that is, water catchment areas and the last tropical forests of the area. This study by von Braun, de Haen, and Blanken highlights the potentials of agricultural development for the employment, income, and consumption of the poor, but also stresses that nonagricultural rural growth and employment expansion are key to... |
| Tipo: Report |
Palavras-chave: Agriculture and State; Rwanda; Produce trade; Government policy; Exports; Food supply; Nutrition policy; Population; Food Consumption/Nutrition/Food Safety; International Development. |
| Ano: 1991 |
URL: http://purl.umn.edu/42154 |
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| Gebremedhin, Tesfa G.. |
| Although world food and agricultural production, based on current trends, will be sufficient to meet demand in the decades ahead, the world still faces a serious food crisis, at least as perilous and life-threatening for millions of poor people as those of the past. To this end, the main objective of this paper is to illuminate the world food situation and to provide a critical analysis of the core causes of world food insecurity by identifying the various misconceptions surrounding our understanding of hunger, starvation, and poverty. A clear and deeper awareness of the real causes of hunger and malnutrition in poor countries is imperative to enable and challenge policy makers and planners to lay the groundwork at the grass-roots level for appropriate... |
| Tipo: Journal Article |
Palavras-chave: Food distribution; Food security; Food supply; Hunger; Malnutrition; Poverty; Food Security and Poverty. |
| Ano: 2000 |
URL: http://purl.umn.edu/14663 |
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| Ahmed, Raisuddin. |
| Conflict between the short run welfare of poor consumers and agricultural production incentives creates some of the most difficult policy issues facing developing countries. Resulting policy option constraints are particularly severe in very low income countries. The conflict may on the one hand impede the growth in al production essential to improve long term welfare of low income consumers, and on the other hand restrain policies to increase consumption, which in the long run is essential to the success of the measures taken to increase production. The widely observed phenomenon of urban bias in food price policy is itself a product of the nature of low income societies and of this complex conflict. This research by Raisuddin Ahmed delineates and... |
| Tipo: Report |
Palavras-chave: Food supply; Bangladesh; Rice; Marketing; Prices; Agricultural and Food Policy; Crop Production/Industries. |
| Ano: 1979 |
URL: http://purl.umn.edu/42223 |
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| Benson, Todd. |
| Undernutrition has, fortunately, risen on the policy agenda in Africa in recent years. In 2004, an international IFPRI 2020 conference held in Kampala on food and nutrition security in Africa drew attention to the issue, and high-level policymakers noted the problem and the need for action much more than they had before. Still, undernutrition remains a fundamental challenge to achieving improved human welfare and economic growth in Sub- Saharan Africa. To address that challenge, national governments must undertake appropriate policies and actions. Politically, however, a high prevalence of undernutrition is not seen as anomalous and indicative of the inability of governments to fulfill their duties to their citizens. This report examines the findings from... |
| Tipo: Report |
Palavras-chave: Nutrition policy; Africa Sub-Saharan; Food supply; Food Consumption/Nutrition/Food Safety; International Development. |
| Ano: 2008 |
URL: http://purl.umn.edu/37875 |
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| Smith, Lisa C.; Alderman, Harold; Aduayom, Dede. |
| Reducing food insecurity in the developing world continues to be a major public policy challenge, and one that is complicated by lack of information on the location, severity, and causes of food insecurity. Such information is needed to properly target assistance, evaluate whether progress is achieved, and develop appropriate interventions to help those in need. This research report explores a new method of measuring food insecurity using food data collected as part of household expenditure surveys. Such surveys are routinely undertaken by numerous national governments throughout the developing world, but in the past the resulting food data remained largely unexploited for the purposes of measuring food insecurity. Using data from 12 Sub-Saharan African... |
| Tipo: Report |
Palavras-chave: Food supply; Africa; Sub-Saharan; Food Security and Poverty. |
| Ano: 2006 |
URL: http://purl.umn.edu/37885 |
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| Simatupang, Pantjar; Fleming, Euan M.. |
| This proceedings is a record of a regional workshop on "Food Security in the Southwest Pacific Island Countries", convened to discuss the findings and strategies achieved in a two-year research project "Food Security Strategies for Selected South Pacific Island Countries". The national experts of the participating countries: Fiji, Papua New Guinea, Tonga and Vanuatu, presented reports of their country studies and the commentators from each country provided additional information. |
| Tipo: Report |
Palavras-chave: Food supply; Food security; Food Security and Poverty. |
| Ano: 2001 |
URL: http://purl.umn.edu/32711 |
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| Registros recuperados: 33 | |
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