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Registros recuperados: 31 | |
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Diankha, Ousmane; Demarcq, Herve; Fall, Massal; Thiao, Djiga; Thiaw, Modou; Sow, Bamol Ali; Gaye, Amadou Thierno; Brehmer, Patrice. |
This study investigated variations of landings of two key species, Sardinella aurita and Sardinella maderensis, in Senegalese waters over a ten-year period (2004-2013). Using generalized additive models, it was found that fishing gear played a major role in explaining differences in monthly landings for both species (51-71% deviance explained). Its effect was more significant in the southern part of Senegal. Fishing effort (number of trips) accounted only for 4-18% of variability in landings. Purse seine (PS) fishing was the most important contributor to the landings of both species. In addition, in the southern area, surrounding gillnet fishing was also important for S. maderensis. Modeling results showed that the relationship between monthly effort and... |
Tipo: Text |
Palavras-chave: Effects of fishing; Generalized additive model; Sardinella aurita; Sardinella maderensis; Purse seine; Surrounding gillnet; Senegal. |
Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00616/72808/72585.pdf |
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Gilles, S. |
The study was carried out at two sites, the island of Carabane, near the ocean, and the village of Djivent, 60 km by water-way from the mouth of the Casamance River. On the first site, the rise of water temperature commands the spat fall from March to October with a maximum peak in July. Because of a heavy biological competition, oysters can only survive within the intertidal zone. On the second site from August to November, which corresponds with the end of the rainy season, the decrease of salinity induces spawning and settlement of young oysters. Because of the heavy salinity variations there is a weak biological competition and young oyster can easily survive in permanent immersion as within the intertidal zone. On both sites, the growth is linear but... |
Tipo: Text |
Palavras-chave: ASE; Senegal; Casamance Crassostrea gasar Bivalvia Seed collection Spat Growth Oyster culture. |
Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/1992/acte-919.pdf |
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Gning, Martha C.. |
This paper presents a case study of how livestock policies are made and implemented in a national context, and how they can be improved to better serve the interests of the poor. In Senegal, approximately one-third of all households depend on livestock for some portion of their livelihood, yet, the sector has not received significant state or private investment, nor has it received a significant amount of bi-lateral and international assistance. The study used the key informant method supplemented with official documents, newspaper sources and recently published research on the livestock sector. Interviews helped reveal policymakers' concerns, whereas field trips allowed the researcher to talk to farmers and learn their perspectives from the bottom.... |
Tipo: Working or Discussion Paper |
Palavras-chave: Senegal; Policymaking; Livestock; Rural development; Poverty; Livestock Production/Industries; Political Economy. |
Ano: 2004 |
URL: http://purl.umn.edu/23763 |
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Hartog, J.C. den; Türkay, M.. |
A new species of Platypodiella Guinot, 1967, from the island of St. Helena, P. georgei spec, nov., is described. This species was found associated with encrusting species of Palythoa Lamouroux, 1816 (Zoantharia). Ample evidence is presented that both the eastern Atlantic P. picta (A. Milne-Edwards, 1869) and the western Atlantic P. spectabilis (Herbst, 1794) also live habitually associated with encrusting species of Palythoa, rarely with other zoantharians. For each of the two East-Pacific members of the genus, P. rotundata (Stimpson, 1860) and P. gemmata (Rathbun, 1902), there is at least one rather detailed published record suggesting that these species too associate with Palythoa. Thus, this habit would seem to go for all five members of the genus. Data... |
Tipo: Article / Letter to the editor |
Palavras-chave: Crustacea; Brachyura; Xanthidae; Platypodiella; Association; Zoantharia; Palythoa; Atlantic Ocean; St. Helena; Cape Verde Islands; Senegal; Eastern Caribbean; 42.74. |
Ano: 1991 |
URL: http://www.repository.naturalis.nl/record/318097 |
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Jutting, Johannes Paul. |
Community based health insurance schemes are becoming increasingly recognized as an instrument which help farmers in rural areas of low income countries to better manage health. Health risks present a permanent threat to the income earning capacity of poor people. Beside direct economic cost for treatment and lost working time, indirect cost such as a reduction in labor supply materialize which increases the vulnerability of the household. It is often hypothezised that community based health insurance improve social protection, but quantitative analysis is largely missing. Against this background, this paper analyzes if members in a mutual health insurance scheme have a better access to health care than non-members taking "les mutuelles de santes" (mutual... |
Tipo: Conference Paper or Presentation |
Palavras-chave: Community based health insurance; Impact analysis; Social protection; Senegal; Health Economics and Policy. |
Ano: 2002 |
URL: http://purl.umn.edu/24803 |
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Jutting, Johannes Paul. |
Access to public and private health insurance in rural areas of low income countries is severely constrained by high unit cost of transaction per contract due to information asymmetries between insurance sellers and buyers. This leads to a situation in which the majority of the poor have to rely on out-of-pocket expenditures when they are ill, resulting in a high vulnerability for health shocks which negatively affect the overall risk management of the household, investment and resource allocation decisions. Recently, however, in various parts of the world community based health insurance schemes have emerged and are becoming increasingly recognized as an instrument to finance health care in poor developing countries. These mutual insurance schemes often... |
Tipo: Conference Paper or Presentation |
Palavras-chave: Rural development; Health insurance; Impact analysis; Social protection; Senegal; Health Economics and Policy; O17; I19; O55. |
Ano: 2002 |
URL: http://purl.umn.edu/19641 |
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Kelly, Valerie A.; Crawford, Eric W.; Ricker-Gilbert, Jacob. |
For several reasons, fertilizer subsidies are again popular policy tools. First, there is broad agreement that fertilizer is a critical yet still-underused input for improving productivity and food security in Africa. Second, politicians have felt greater urgency to increase domestic food production since the 2007/08 food price crisis. Third, subsidy programs are highly visible, popular with voters, and viewed as politically beneficial. Fourth, donor budget support has made it easier for governments to pay for subsidies. |
Tipo: Report |
Palavras-chave: Fertilizer subsidies; Africa; Malawi; Zambia; Senegal; Feed The Future; Agricultural and Food Policy; Food Security and Poverty. |
Ano: 2011 |
URL: http://purl.umn.edu/107460 |
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Lam,Absa; Camara,Bouna; Kane,Oumar; Diouf,Amadou; Chippaux,Jean-Philippe. |
Abstract Background Although considered a public health issue in Senegal, the actual incidence and mortality from snakebite are not known. In the present study, an epidemiological survey was carried out in Kédougou region, southeastern Senegal, where envenomations, particularly by Echisocellatus, are frequent and severe. Methods Three sources of data were used: records from health centers and reports by health professionals; traditional healers; and household surveys. Results The annual incidence and mortality provided by health centers were 24.4 envenomations and 0.24 deaths per 100,000 population, respectively. The annual incidence recorded by traditional healers was 250 bites per 100,000 inhabitants, but the number of deaths was unknown. Finally,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Epidemiology; Snakebite; Envenomation; Senegal; Incidence. |
Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992016000100307 |
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Le Croizier, Gael; Schaal, Gauthier; Gallon, Regis; Fall, Massal; Le Grand, Fabienne; Munaron, Jean-marie; Rouget, Marie-laure; Machu, Eric; Le Loc'H, Francois; Lae, Raymond; De Morais, Luis Tito. |
The link between trophic ecology and metal accumulation in marine fish species was investigated through a multi-tracers approach combining fatty acid (FA) and stable isotope (SI) analyses on fish from two contrasted sites on the coast of Senegal, one subjected to anthropogenic metal effluents and another one less impacted. The concentrations of thirteen trace metal elements (As, Cd, Co, Cr, Cu, Fe, Li, Mn, Ni, Pb, Sn, U, and Zn) were measured in fish liver. Individuals from each site were classified into three distinct groups according to their liver FA and muscle SI compositions. Trace element concentrations were tested between groups revealing that bioaccumulation of several metals was clearly dependent on the trophic guild of fish. Furthermore,... |
Tipo: Text |
Palavras-chave: Trace elements; Biochemical tracers; Diet; Contamination; Senegal; Tropical fish. |
Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00348/45908/45707.pdf |
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Lynam, Timothy; Tropical Resource Ecology Program, University of Zimbabwe; tlynam@science.uz.ac.zw; Bousquet, Francois; CIRAD Tera; bousquet@cirad.fr; Le Page, Christophe; CIRAD Tera; lepage@cirad.fr; d'Aquino, P.; CIRAD Tera; daquino@telecomplus.sn; Barreteau, Olivier; Cemagref Division Irrigation; barreteau@montpellier.cemagref.fr; Chinembiri, Frank C; Agritex;; Mombeshora, Bright; ;. |
Two case studies are presented in which models were used as focal tools in problems associated with common-pool resource management in developing countries. In the first case study, based in Zimbabwe, Bayesian or Belief Networks were used in a project designed to enhance the adaptive management capacity of a community in a semiarid rangeland system. In the second case study, based in Senegal, multi-agent systems models were used in the context of role plays to communicate research findings to a community, as well as to explore policies for improved management of rangelands and arable lands over which herders and farmers were in conflict. The paper provides examples of the use of computer-based modeling with stakeholders who had limited experience with... |
Tipo: Peer-Reviewed Reports |
Palavras-chave: Adaptive management; Bayesian belief networks; Developing country; Dynamic modeling; Multi-agent systems; Participatory modeling; Semiarid rangeland; Senegal; Spidergrams; Zimbabwe. |
Ano: 2002 |
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Registros recuperados: 31 | |
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