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Registros recuperados: 34
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Notes on Cancellaria minima Reeve (Mollusca: Neogastropoda: Cancellariacea) Naturalis
Verhecken, A..
Cancellaria minima Reeve, 1856, is redescribed after three syntypes and 59 shells recently collected near Madeira and off Morocco. The few literature data concerning this poorly known species are summarized. Its range appears to be situated between 27° and 37°N and 5° and 17°W, as far as known mainly between 78 and 680 m depth.
Tipo: Article / Letter to the editor Palavras-chave: Mollusca; Cancellariacea; Taxonomy; Distribution; Madeira; Morocco; 42.73.
Ano: 1984 URL: http://www.repository.naturalis.nl/record/318406
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Chitons (Mollusca: Polyplacophora) procured by the CANCAP I-VII expeditions, 1976-86 Naturalis
Kaas, P..
The 327 specimens of chitons captured during six out of seven CANCAP Expeditions have been examined. They belong to 26 species, including two recently described ones: Ischnochiton (Stenosemus) substriatus Kaas & Van Belle, 1990 and Ischnochiton (Ischnochiton nicklesi Kaas & Van Belle, 1990. Callistochiton pachylasmae (Di Monterosato, 1878) has been found off the coast of Morocco.
Tipo: Article / Letter to the editor Palavras-chave: Polyplacophora; Madeira; Morocco; Selvagens Islands; Canary Islands; Mauretania; Cape Verde Islands; Azores; Taxonomy; Distribution; 42.73.
Ano: 1991 URL: http://www.repository.naturalis.nl/record/319285
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Un nouveau Microcharon (Isopoda, Janiroidea) du Maroc — origine et biogéographie historique Naturalis
Boulanouar, M.; Yacoubi, M.; Messouli, M.; Coineau, N..
The interstitial crustacean isopods of the genus Microcharon (Microparasellidae) are relatively well-diversified and widely distributed in Morocco. A new species, M. boutini, is described. The 5-dentate mandibular pars incisiva, the elongated inner lobe of the exopodite, and the reduced armature of the first male pleopod characterize the species. M. boutini n. sp. belongs to the monophyletic messoulii group of species, the most primitive representatives of the genus. The distribution of M. boutini n. sp. covers both the northwestern part of the Jbilet and the nearest adjacent plain, as well as the High Atlas of the Marrakech piedmont. From a historical biogeographic point of view, interstitial ancestral marine populations would have been left in...
Tipo: Article / Letter to the editor Palavras-chave: Taxonomy; Crustacea; Isopoda; Interstitial stygobionts; Microcharon; Morocco; Historical biogeography.
Ano: 1995 URL: http://www.repository.naturalis.nl/record/503904
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AN ANALYSIS OF IODINE DEFICIENCY DISORDER AND ERADICATION STRATEGIES IN THE HIGH ATLAS MOUNTAINS OF MOROCCO AgEcon
Oldham, Elizabeth Anne; Barrett, Christopher B.; Benjelloun, Sabah; Ahanou, Brahim.
The population of the Ounein Valley in the High Atlas Mountains in Morocco is at high risk of iodine deficiency. We investigated local children’s iodine deficiency and goiter patterns as well as food consumption habits through a household survey. Median urinary iodine content and goiter analysis both reflect moderate iodine deficiency. Total fish consumption has a statistically significant, positive effect on urinary iodine content. Fish consumption, like that of salt, is closely related to market access. Respondents are uniformly unaware of the dietary etiology of goiter. An effective strategy to reduce the high incidence of iodine deficiency disorder among children in the valley must attend to four crucial issues: fish consumption, salt iodization,...
Tipo: Working or Discussion Paper Palavras-chave: Iodine deficiency; Micronutrient deficiency; Morocco; Nutrition education; Salt iodization; Food Consumption/Nutrition/Food Safety; Health Economics and Policy.
Ano: 1996 URL: http://purl.umn.edu/28368
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Évolution biologique de la lagune de Nador (Maroc) au cours de la période 1982-1993 ArchiMer
Lefebvre, A; Guelorget, O; Perthuisot, Jp; Dafir, Je.
The biogeological evolution of Nador lagoon over the 1982-1993 period was surveyed through water parameters, chlorophyll biomass, macrobenthos and surficial sediments. Comparison of present data with the 1982-83 ones (Guelorget et al., 1984) shows that: the general organization and functioning of the basin (water circulation, biological and sedimentological zonations) remain roughly the same, the global confinement as described by the biological zonation has slightly increased, with an extension of the high confinement zones (zones IV to VI) to the detriment of the low confinement zones, notably zones I and II, the main change has been eutrophication and a dramatic increase elf organic matter inputs and sedimentation, due to increasing urbanization and the...
Tipo: Text Palavras-chave: Paralic; Confinement; Morocco; Present; Eutrophication.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/00093/20404/18071.pdf
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Un nouveau Microparasellidae (Crustacé Isopode) du Haut-Atlas; aspects phylogénétiques et biogéographiques Naturalis
Yacoubi-Khebiza, M.; Boulanouar, M.; Coineau, N..
The interstitial stygobiotic isopods of the genus Microcharon (Crustacea) are diversified in Morocco. A new species, M. ourikensis, is described. The new species shows some original characters for this genus: large size, strong elongation in the first male pleopod exopodal inner lobe, 5-dentate mandibular pars incisiva, and 5 spines on the last mandibular palp segment. The species is a member of the Ibero-Maghrebin messoulii group. It is an endemic representative of the Ourika valley groundwater in the Moroccan High Atlas. It derives from a littoral marine ancestor which could have colonized the continental subterranean water during Turonian or Senonian Tethyan regressions.
Tipo: Article / Letter to the editor Palavras-chave: Taxonomy; Biogeography; Crustacea; Interstitial Isopoda; Microcharon; High Atlas; Morocco.
Ano: 1997 URL: http://www.repository.naturalis.nl/record/504225
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A new species of Pseudoniphargus (Crustacea, Amphipoda) from subterranean water of northeastern Morocco: Historical biogeography and evolutionary aspects Naturalis
Abiari, A. Fakher el; Oulbaz, Z.; Messouli, M.; Coineau, N..
A new species of Pseudoniphargus, P. longiflagellum (Crustacea, Amphipoda) is described from subterranean fresh water of the Riftan region of Morocco. This species is closely related to the group P. ruffoi-P. longipes, which shares several apomorphic characters. The two-step model of colonization and evolution provides an understanding of the origin and the age of this stygobiont. P. longiflagellum is derived from marine ancestors that lived in the coastal groundwater of the Tethyan South-Rifian channel during the Miocene Tortonian period. The regression of this corridor during the late Tortonian period or at the beginning of the Messinian period may have played a major role in the evolutionary history through vicariance.
Tipo: Article / Letter to the editor Palavras-chave: Systematics; Historical biogeography; Crustacea; Groundwater Amphipoda; Pseudoniphargus; Morocco.
Ano: 1999 URL: http://www.repository.naturalis.nl/record/534391
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Trade Liberalization and Complementary Domestic Policies: A Rural-Urban General Equilibrium Analysis of Morocco AgEcon
Lofgren, Hans; El-Said, Moataz; Robinson, Sherman.
"April 1999." Includes bibliographical references (p. 24-26).
Tipo: Working or Discussion Paper Palavras-chave: Trade liberalization -- Econometric models; Morocco; Tariff -- Mathematical models; Agricultural trade; International Development.
Ano: 1999 URL: http://purl.umn.edu/97540
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Eau colorée à Lingulodinium polyedrum (Stein) Dodge, dans une zone aquacole du littoral du Doukkala (Atlantique marocain) ArchiMer
Bennouna, A; Berland, B; El Attar, J; Assobhei, O.
A red tide of Lingulodinium polyedrum occured along the moroccan atlantic coast in july 1999. Observed in the beginning of the month in the Kenitra area, it spreads with the coastal drift as far as the south of safi, passing on its way upon a sanitary monitored area. This area which is submitted to an all year round bimonthly monitoring analysis of phytoplankton, contains significant natural beds of oysters, clams and mussels, as well as shellfish farms in Oualidia and Sidi Moussa lagoons. However, during this period of bloom, there was weekly monitoring of hydrologic and climatic data associated with phytoplankton analysis to identify the causes of this bloom. This bloom occured in 17-18degreesC surface waters, temperatures which are favourable to...
Tipo: Text Palavras-chave: Eau colorée; Lingulodinum polyedrum; Toxicité; Maroc; Red tide; Lingulodinium polyedrum; Toxicity; Morocco.
Ano: 2002 URL: http://archimer.ifremer.fr/doc/00322/43317/42937.pdf
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Production and marketing of organic fruits and vegetables in Morocco Organic Eprints
EL MALOUI, Hamid.
Organic agriculture in Morocco is still in its infancy. In absence of domestic market, the whole production is exported towards the European market. Moroccan organic exports of fruits and vegetables are growing sharply. Yet, the exported quantity is still limited. The late establishment of national standards, the lack of public support, the absence of local market and the inadequate marketing structure are the main hindrances of organic production development in the Kingdom. The aim of this study is to identify the opportunities and constraints facing the organic production and marketing, to provide an understanding of the limitations of the existing production system and exports’ strategies, and to suggest how these limitations can be overcome and...
Tipo: Thesis Palavras-chave: Markets and trade; Morocco.
Ano: 2002 URL: http://orgprints.org/6472/1/HamidMalaoui02.pdf
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Study on the introduction of organic tomato greenhouse in Massa plain, Agadir, South Morocco Organic Eprints
Ayoub, Mohamed.
Organic tomato is growing these last four years in Morocco. As the local market isn't promoting, a great effort has been done in order to get the international market and mainly an European one. The outside season production of tomato need the greenhouse. That's why a greenhouse production of organic tomato is an important point to deal with it. (JAMEA EL MOSTAFA, 23 july, 2003)
Tipo: Thesis Palavras-chave: Vegetables; Morocco.
Ano: 2002 URL: http://orgprints.org/930/1/DSPU_thesis.doc
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A new species of Echinogammarus Stebbing, 1899 (Crustacea, Amphipoda) from Moroccan freshwaters Naturalis
Fadil, Fatima; Dakki, Mohamed.
Systematic sampling has proved that members of the genus Echinogammarus are known from limited areas of Morocco. In this paper, we describe a new species of Echinogammarus (Crustacea, Amphipoda): Echinogammarus oujdae n. sp. from freshwater of the northeastern region with remarks on its affinities and ecology.
Tipo: Article / Letter to the editor Palavras-chave: Amphipoda; Echinogammarus; Systematics; Freshwater; Morocco.
Ano: 2003 URL: http://www.repository.naturalis.nl/record/504766
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Caenopachys hartigii (Ratzeburg) (Hymenoptera: Braconidae: Doryctinae) confirmed for Italy, with notes on the status of the genus Caenopachys Foerster Naturalis
Mancini, D.; Priore, R.; Battaglia, D.; Achterberg, C. van.
The Palaearctic species Caenopachys hartigii (Ratzeburg, 1848) has been collected in the National Park of Pollino (S Italy), which is the first exact confirmation for the Italian fauna. A brief nomenclatural history of the genus Caenopachys Foerster, 1862, is given, its status is discussed and it is elevated from synonymy. The type species is re-described and illustrated; a key to both West Palaearctic species is given, and some biological notes are added.
Tipo: Article / Letter to the editor Palavras-chave: Hymenoptera; Braconidae; Doryctinae; Caenopachys; Dendrosoter; C. hartigii; New combination; Italy; France; Bulgaria; Europe; Morocco; West Palaearctic; 42.75.
Ano: 2003 URL: http://www.repository.naturalis.nl/record/216165
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The West Palaearctic species of the genera Gildoria Hedqvist and Platyspathius Viereck, with keys to the species (Hymenoptera: Braconidae: Doryctinae) Naturalis
Achterberg, C. van.
The West Palaearctic species of the genera Gildoria Hedqvist, 1974, and Platyspathius Viereck, 1911 (Braconidae: Doryctinae) are revised. Five new species are described and illustrated: Gildoria elongata spec. nov. from Canary Islands, G. gijswijti spec. nov. from France, G. iberica spec. nov. from Spain, G. striata spec. nov. from Morocco and Platyspathius europaeus spec. nov. from France and Italy. The genus Gildoria is re-instated, Gildoria anthaxiae (Belokobylskij, 1983), G. grandis (Fahringer, 1930), G. planus (Ratzeburg, 1848), G. similis ( Bouc˘ek, 1955) and G. titubata (Papp, 1985) are new combinations, and Dendrosotinus ilanotensisC ˘ apek, 1992, is synonymized with Gildoria titubata (Papp, 1985). Doryctes lenticularis Granger, 1949, is designated...
Tipo: Article / Letter to the editor Palavras-chave: Hymenoptera; Braconidae; Doryctinae; Gildoria; Dendrosotinus; Platyspathius; Spathiohormius; Lenticulara; Morocco; France; Canary Islands; Europe; Palaearctic; Distribution; Key; New species.; 42.75.
Ano: 2003 URL: http://www.repository.naturalis.nl/record/216152
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Environmental Services, Externalities and Agriculture: The Case of Mountain Tourism in Morocco AgEcon
Khalil, Allali.
This study uses hedonic pricing techniques to estimate the value of agricultural amenities in Morocco's High Atlas Mountains. The analysis is limited to positive externalities related to land use, providing indicators to better inform policy decisions effecting rural and agricultural development. Advantages linked to landscape planning and its contribution to sustaining the tourism activity are documented. Amenities specific to mountain agriculture have a positive influence on the tourist accommodation rental market and particularly on farmhouses. These advantages include joint products linked to the farmhouses bordering cultivated areas, the scenery value of annual crops, the shade and attractiveness provided by walnut trees and the presence of domestic...
Tipo: Journal Article Palavras-chave: Agricultural landscape values; Hedonic valuation; Morocco; Rural development; Environmental Economics and Policy; Resource /Energy Economics and Policy.
Ano: 2004 URL: http://purl.umn.edu/12010
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L'agricoltura biologica nei Paesi del Mediterraneo Organic Eprints
Santucci, Fabio Maria; De Gennaro, Bernardo.
This report updates and expands the information contained in the IFOAM publication on the status of OF in several Countries, from Croatia to Morocco. It has been produced as first step toward a more focused investigation based on the Delphi method, to be implemented from September 2005 to September 2006. For each country, there are qualitative and quantitative information concerning farms, productions, trade, local and foreign markets, advice and research, legislation, projects, etc.
Tipo: Working paper Palavras-chave: Markets and trade; Policy environments and social economy; Morocco.
Ano: 2005 URL: http://orgprints.org/5788/1/Biomediterraneo.PDF
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EU Trade Preferences for Moroccan Tomato Exports--Who Benefits? AgEcon
Chemnitz, Christine; Grethe, Harald.
The EU applies a complex system of preferences for tomato imports from Morocco. Quantities are fixed and serve as entry price quotas and tariff rate quotas at the same time. This paper provides empirical evidence of i) the existence of an economic rent under the EU preferential scheme for tomato imports from Morocco of about €24-36.5 mill. per year, and ii) the distribution of that rent. Due to the structure of the Moroccan export sector as well as the EU method of allocating import licenses, it is likely that a large part of the quota rent ends up at the Moroccan side and that a dissipation of the rent in physical rent-seeking activities is limited.
Tipo: Conference Paper or Presentation Palavras-chave: Morocco; Tomatoes; Trade preferences; Euro-Mediterranean Agreement; Tariff rate quota; Quota rent; International Relations/Trade; Q17; F14.
Ano: 2005 URL: http://purl.umn.edu/24686
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Scorpion stings in one province of Morocco: epidemiological, clinical and prognosis aspects J. Venom. Anim. Toxins incl. Trop. Dis.
Soulaymani Bencheikh,R.; Idrissi,M.; Tamim,O.; Semlali,I.; Mokhtari,A.; Tayebi,M.; Soulaymani,A..
The present study aimed at verifying the impact of a Moroccan strategy against scorpion stings and, specifically, at identifying the epidemiological features of the patients envenomed or just stung by scorpions. The investigation included 4089 patients from a province of Morocco which were evaluated over three years (2001, 2002 and 2003). Most stings occurred during the hot period and mainly at night (between 6:00 p.m. and 12:00 p.m.). The average incidence was 2.8‰, the average age of the patients was 26.7±18.2 years, and the envenomation rate was 6.7%. Mortality rate was 0.05‰, and average lethality rate was 0.7%. Analysis of variance showed that young age, symptoms at admission, and long time elapsed between sting and admission were correlated with poor...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Epidemiology; Scorpions; Strategy; Morocco.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992007000200005
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The fi rst Microcharon (Crustacea, Isopoda, Microparasellidae) from the Moroccan North Saharan Platform. Phylogeny, origin and palaeobiogeography Naturalis
Aït Boughrous, A.; Boulanouar, M.; Yacoubi, M.; Coineau, N..
The interstitial stygobites of the genus Microcharon (Crustacea, Isopoda, Microparasellidae) are highly diversified in Morocco, especially in the High Atlas. A new species from the North Saharan platform is described. Microcharon oubrahimae n. sp. is characterized by the original morphology of the first male pleopod which exhibits a concave inner margin of the distal part and a subdistal position of the armature. From a phylogenetic point of view, M. oubrahimae does not belong to the lineage which includes the Moroccan Atlasian species. In contrast, it belongs to the eastern- Mediterranean group of species. It is related to the species of the group M. orghidani-M. bureschi-M. phlegetonis from Romania and Bulgaria. The two-step model of colonization and...
Tipo: Article / Letter to the editor Palavras-chave: Crustacea; Interstitial isopoda; Microcharon; Systematics; Morocco; Palaeobiogeography; 42.74.
Ano: 2007 URL: http://www.repository.naturalis.nl/record/217423
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Metal concentrations in sediment and Nereis diversicolor in two Moroccan lagoons: Khnifiss and Oualidia ArchiMer
Idardare, Zaina; Chiffoleau, Jean-francois; Moukrim, A; Alla, A; Auger, Dominique; Lefrere, L; Rozuel, Emmanuelle.
Metal concentrations were measured monthly during an annual cycle (December 2004 to January 2006) in the tissues of Nereis diversicolor ragworms and sediment from two Moroccan Atlantic coastal lagoons: Oualidia in the north, situated in a highly industrialised urban area and Khnifiss in the south, far from anthropogenic influences. Relatively high levels of Zn, Ag and Cd were found in the sediment of Oualidia lagoon, while Ni concentrations were shown to be high at Khnifiss. The significant metal levels at Oualidia are a result of industrial and urban discharges, coupled with discharges from adjacent phosphate ore processing plants. Trace metal concentrations in worms vary according to season; they are usually high in winter and spring, in relation to the...
Tipo: Text Palavras-chave: Morocco; Coastal lagoons; Sediments; Nereis diversicolor; Metals.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-6127.pdf
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