Journal articles: 'Zarzis (Tunisie)'

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Perthuisot, J. P., S. Castanier, and A. Maurin. "La huntite (CaMg 3 (CO 3 ) 4 ) de la Sebkha el Melah (Zarzis, Tunisie); un exemple de microbiodiagenese carbonatogene." Bulletin de la Société Géologique de France VI, no. 4 (July 1, 1990): 657–66. http://dx.doi.org/10.2113/gssgfbull.vi.4.657.

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Hazelton, Robert H., Robert M. Sargent, Erich R. Gundlach, Mohamed Anis Boussetta, Ahmed Ben Djebara, and Sahbene Ben Fadhel. "PREVENTION AND ABATEMENT OF MARINE POLLUTION IN TUNISIAN COMMERCIAL PORTS." International Oil Spill Conference Proceedings 2001, no. 2 (March 1, 2001): 1449–54. http://dx.doi.org/10.7901/2169-3358-2001-2-1449.

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ABSTRACT In addition to having ports that ship and receive oil and other commercial products by sea, the Republic of Tunisia is exposed to potential spills from vessels that are routed close to shore as they transit the Mediterranean. This paper summarizes a study that was conducted to evaluate Tunisia's commercial ports' oil spill contingency plans, response equipment, and response management systems, for the purposes of increasing the spill response capability of the Tunisian Office of the Merchant Marine and Ports (OMMP) and bringing each plan up to criteria established by Tunisia's 1996 oil spill legislation and international standards. The four ports evaluated were Bizerte, Tunis-Goulette-Radès (TGR), Sfax, and Zarzis. Interviews and discussions were conducted with representatives of the OMMP, the Agency for Environmental Protection (ANPE), the Tunisian Petroleum Activities Enterprise (ETAP), the Tunisian Navy and Merchant Marine, the Directorate General of Energy, the state-owned oil transportation company (TRAPSA), and selected private sector oil companies. The equipment review entailed analysis of existing equipment in each port, potential spill size and location, time to respond, and environmentally sensitive areas needing protection. Specific recommendations were made for improving the readiness posture of Tunisia's commercial ports and for the purchase of additional spill-response equipment and services. Implementation of these recommendations will result in a significantly improved capability on the part of the private and public sector users of Tunisia's commercial ports to respond effectively to marine oil spills, should one occur. This paper highlights the readiness capability of each port and the extent of oil transportation activities, and provides recommendations to improve response via equipment purchases, improvement of the existing response management system, implementation of a training and exercise program, and changes to the port contingency plans.

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Zelleg, Marwa, Imen Said, Essaieb Hamdi, and Zoubeir Lafhaj. "Experimental testing for Zarzis port sediments (Tunisia) in road materials." Geotechnical Research 5, no. 1 (March 2018): 13–21. http://dx.doi.org/10.1680/jgere.17.00013.

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Feki, M., M. Châari, and L. Neifar. "Spatial variability of helminth parasites and evidence for stock discrimination in the round sardinella, Sardinella aurita (Valenciennes, 1847), off the coast of Tunisia." Journal of Helminthology 90, no. 3 (June 22, 2015): 353–58. http://dx.doi.org/10.1017/s0022149x15000371.

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AbstractThree digeneans – Parahemiurus merus (Linton, 1910), Aphanurus stossichii (Monticelli, 1891) and Lecithochirium sp. – and one tetraphyllidean cestode larva were used as biological tags to discriminate the stock of Sardinella aurita (Valenciennes, 1847). In total, 579 fish were examined in five zones off the Tunisian coast, including Bizerte and Kelibia in the north, Mahdia in the east, Gabes and Zarzis in the south. Discriminant analyses used for the separation of S. aurita allowed for the identification of two discrete stocks. Sardinella aurita from Bizerte, Kelibia and Zarzis clumped together as a single stock. Parahemiurus merus and A. stossichii were the most important species in determining the location of sampled fish from these regions. Specimens from Mahdia and Gabes were grouped as one stock characterized by the presence of Lecithochirium sp. and larvae of the Tetraphyllidea. These results were corroborated by comparing the parameters of prevalence and mean abundance of parasites among zones. The separation of S. aurita between localities after pooling specimens from Bizerte, Kelibia and Zarzis and separately pooling those from Mahdia and Gabes also allowed the identification of two discrete stocks, one in offshore waters from Bizerte, Kelibia and Zarzis characterized by the digeneans P. merus and A. stossichii and one in inshore waters from Mahdia and Gabes characterized by Lechithochirium sp. and tetraphyllidean larvae.

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Zagaria, Valentina. "The Morally Fraught Harga." Cambridge Journal of Anthropology 37, no. 2 (September 1, 2019): 57–73. http://dx.doi.org/10.3167/cja.2019.370205.

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The Tunisian coastal town of Zarzis is known for its generations of male emigrants to France and for initiating post-revolutionary harga – the ‘burning’ of the border via undocumented sea crossings to ‘Europe’. Despite migration being central to life in Zarzis, the harga is fraught with anxieties and moral accusations. While older generations accuse younger ones of chasing after easy money and causing jealousies, thereby fuelling the harga, young men reckon that risking the crossing is a matter of escaping social death. Men of all ages also agree that the harga is often women’s fault. This article explores how the desire of making a living in Europe is evaluated in a departure town, and what the accusations and negative emotions it conjures up might reveal about people’s understandings of their economic and moral lives in times of political and social change.

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Feki, M., M. Châari, L. Neifar, and L. Boudaya. "Helminth parasites of the chub mackerelScomber coliasoff the Tunisian coast and their use in stock discrimination." Journal of Helminthology 92, no. 1 (February 20, 2017): 90–99. http://dx.doi.org/10.1017/s0022149x17000104.

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AbstractNine helminth parasites were used as biological tags to discriminate diverse areas ofScomber coliasGmelin, 1789. During three seasons, a total of 369 fish were examined in four zones off the Tunisian coast, including Bizerte in the north, Kelibia and Mahdia in the centre and Zarzis in the south. Discriminant analyses were used to identify distinct areas ofS. colias. Fish from Bizerte were grouped as one area and were correlated negatively with the monogeneanGrubea cochlearand the digeneanLecithocladium excisum. Specimens from Kelibia and Mahdia were grouped together and were characterized by the ectoparasitePseudokuhnia minorand by endoparasitesProdistomum orientalis, Monascus filiformisand anisakid larvae. Fish from Zarzis were grouped as one area and were positively correlated with the monogeneanG. cochlearand the digeneanL. excisum. These results were corroborated by comparing the prevalence and mean abundance of parasites among zones. Results of other discriminant analyses used for the classification ofS. coliasbetween localities after pooling specimens from the central areas of Kelibia and Mahdia also allowed the identification of three distinct areas: one in the north, correlated negatively withG. cochlearandL. excisum;one in the centre, characterized byP. minor, P. orientalis, M. filiformisand anisakid larvae; and one in the south, from Zarzis, characterized byG. cochlearandL. excisum. Results of comparisons of infection parameters between seasons and those of seasonal discrminant analyses showed a seasonal stability of communities from the northern and the southern areas. Specimens from the central regions showed variability between seasons, suggesting migratory movements.

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Zagaria, Valentina. "“A Small Story With Great Symbolic Potential”: Attempts at Fixing a Cemetery of Unknown Migrants in Tunisia." American Behavioral Scientist 64, no. 4 (November 28, 2019): 540–63. http://dx.doi.org/10.1177/0002764219882994.

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From the summer of 2015, as Europe faced the so-called “refugee crisis,” a cemetery in southeast Tunisia started gaining fame. Journalists, researchers, filmmakers, photographers, and activists began traveling to the coastal town of Zarzis to report on a burial site for the victims of the European Union’s border. They were welcomed by local actors, and in particular by Chamseddine, a former fisherman who over the years became deeply involved in these burials. Told through one man’s charitable commitment to provide dignity to those who died at the European Union’s liquid border, the cemetery was fixed as a place epitomizing both the deadly effects of migration policies and the compassion of simple citizens in the face of horror. Different individuals and groups also began organizing to materially fix the cemetery. Based on ethnographic fieldwork in Zarzis between 2015 and 2018, this article explores the conceptual and practical acts of “fixing” surrounding the cemetery. These resulted in turning it into a focal symbol triggering moral and political discourses not only of empathy and hope but also of blame and responsibility, bringing to the fore the colonial and neocolonial legacies of the “refugee crisis.”

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Bellaaj-Zouari, Amel, Souheil Dkhili, Refka Gharsalli, Abdelkrim Derbali, and Nejla Aloui-Bejaoui. "Shell morphology and relative growth variability of the invasive pearl oyster Pinctada radiata in coastal Tunisia." Journal of the Marine Biological Association of the United Kingdom 92, no. 3 (December 9, 2011): 553–63. http://dx.doi.org/10.1017/s0025315411001925.

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The variability of shell morphology and relative growth of the invasive pearl oyster Pinctada radiata was studied within and among ten populations from coastal Tunisia using discriminant tests. Therefore, 12 morphological characters were examined and 34 metric and weight ratios were defined. In addition to the classic morphological characters, populations were compared by the thickness of the nacreous layer. Results of Duncan's multiple comparison test showed that the most discriminative ratios were the width of nacreous layer of right valve to the inflation of shell, the hinge line length to the maximum width of shell and the nacre thickness to the maximum width of shell. The analysis of variance revealed an important inter-population morphological variability. Both multidimensional scaling analysis and the squared Mahalanobis distances (D2) of metric ratios divided Tunisian P. radiata populations into four biogeographical groupings: the north coast (La Marsa); harbours (Hammamet, Monastir and Zarzis); the Gulf of Gabès (Sfax, Kerkennah Island, Maharès, Skhira and Djerba) and the intertidal area (Ajim). However, the Kerkennah Island population was discriminated by the squared Mahalanobis distances (D2) of weight ratios in an isolated group suggesting particular trophic conditions in this area. The allometric study revealed high linear correlation between shell morphological characters and differences in allometric growth among P. radiata populations. Unlike the morphological discrimination, allometric differentiation shows no clear geographical distinction. This study revealed that the pearl oyster P. radiata exhibited considerable phenotypic plasticity related to differences of environmental and/or ecological conditions along Tunisian coasts and highlighted the discriminative character of the nacreous layer thickness parameter.

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Zagaria, Valentina. "The clandestine cemetery." Human Remains and Violence 5, no. 1 (April 2019): 18–37. http://dx.doi.org/10.7227/hrv.5.1.3.

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The Mediterranean Sea has recently become the deadliest of borders for illegalised travellers. The victims of the European Union’s liquid border are also found near North African shores. The question of how and where to bury these unknown persons has recently come to the fore in Zarzis, a coastal town in south-east Tunisia. Everyone involved in these burials – the coastguards, doctors, Red Crescent volunteers, municipality employees – agree that what they are doing is ‘wrong’. It is neither dignified nor respectful to the dead, as the land used as a cemetery is an old waste dump, and customary attitudes towards the dead are difficult to realise. This article will first trace how this situation developed, despite the psychological discomfort of all those affected. It will then explore how the work of care and dignity emerges within this institutional chain, and what this may tell us about what constitutes the concept of the human.

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Fezei, Radouanne, Halim Hammi, and Adel M’nif. "Extractive process for preparing high purity magnesium chloride hexahydrate." Chemical Industry and Chemical Engineering Quarterly 18, no. 1 (2012): 83–88. http://dx.doi.org/10.2298/ciceq110815049f.

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This paper refers a method for the preparation of magnesium chloride hexahydrate (bischofite) from Sebkha el Melah of Zarzis Tunisian natural brine. It is a five-stage process essentially based on crystallization by isothermal evaporation and chemical precipitation. The two first steps were dedicated to the crystallization of sodium chloride and potassiummagnesium double salts, respectively. Then, the resulting liquor was desulfated using calcium chloride solution. After that another isothermal evaporation stage was implemented in order to eliminate potassium ions in the form of carnallite, KCl.MgCl2.6H2O. At the end of this step, the recovered solution primarily composed of magnesium and chloride ions was treated by dioxan in order to precipitate magnesium chloride as MgCl2.6H2O.C4H8O2. This compound dried at constant temperature of 100?C gave good quality magnesium chloride hexahydrate. Besides this salt, the various by-products obtained from the different treatment stages are also useful.

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Ben Naceur, Hachem, Nabila Ghazali, Amel Ben Rejeb Jenhani, and Mohamed Salah Romdhane. "Study of the fatty acid composition of Artemia salina cysts from Tunisia." Journal of the Marine Biological Association of the United Kingdom 93, no. 7 (July 2, 2013): 1795–803. http://dx.doi.org/10.1017/s0025315413000623.

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In the present study, decapsulated cysts from eleven Tunisian Artemia salina populations were analysed for their fatty acid profile. Results showed that palmitic (16:0), palmitoleic (16:1n-7), stearic (18:0), cis-vaccenic (18:1n-7), oleic (18:1n-9), linoleic (18:2n-6), linolenic (18:3n-3) and eicosapentaenoic (20:5n-3) were the major fatty acids. The ratio of C16:0/C16:1 fatty acids fluctuated between 0.8 and 3.8. Docosahexaenoic acid (22:6n-3) was absent or found in trace (<0.2%) and arachidonic acids (20:4n-6) was found in higher quantity in all marine-type cysts than in freshwater-type cysts samples. Furthermore, based on the fatty acid profile of the studied Artemia salina populations, we can concluded that Sijoumi, Sahline, Bekalta, Mcheguig and El Adhibet strains could be ascribed to marine-type Artemia, whereas the population from Moknine, Sidi El Hani, Sfax, El Melah, Zarzis and Mhabeul could be categorized as freshwater-type. Principal components analysis showed that palmitoleic acid, linolenic acid, eicosapentaenoic acid, arachidonic acid and C16:0/C16:1 ratio are the most important fatty acids variable between cysts samples, with a total contribution of 68.73% relatively to the first component, whereas, for the second component, palmitic acid, cis-vaccenic acid and oleic acid, are the most important variables, with a total contribution of 56.25%. Moreover, palmitoleic acid, linolenic acid, eicosapentaenoic acid, arachidonic acid and C16:0/C16:1 ratio are the most important fatty acids which contribute to the discrimination between freshwater and marine-type Artemia; while palmitic acid, cis-vaccenic acid and oleic acids represent the major fatty acids permitting differentiation between strains from the same Artemia type, especially for freshwater-type Artemia.

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Ben Labidi, Mouna, Hassen Allaya, Adel A. Basyouny Shahin, Jean-Pierre Quignard, Monia Trabelsi, and Abderraouf Ben Faleh. "Morphometric and meristic character variability and relationships among populations of Boops boops (L.) from four marine stations along the Tunisian coast." Fisheries & Aquatic Life 29, no. 1 (March 1, 2021): 13–28. http://dx.doi.org/10.2478/aopf-2021-0002.

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Abstract The variability of 14 morphometric and seven meristic characters of Boops boops (L.) collected at four stations along the Tunisian coast was examined in 518 samples ranging from 126 to 206 mm in total length and 37 to 78 g in total weight. Statistical analysis of both sets of characters showed significant variation among the four populations in 13 (92.9%) morphometric and four (57.1%) meristic characters. CVA and cluster analysis of the morphometric characters revealed four groups corresponding to four populations, with 95.36% correct classifications of individuals to their populations of origin. However, CVA and cluster analysis of the meristic characters showed a reticulate relationship among the four populations, as there was clear differentiation between those in Monastir and Zarzis and an overlap between those in Bizerte and Kelibia, with only 51.75% of individuals correctly classified to their respective populations. This morphological differentiation among the populations from the four stations was attributed to the differences in the physico-chemical water properties at these stations. However, further studies are needed on the impact of environmental factors and diet at these stations on the morphological population structure of B. boops to better understand the contribution of environmental conditions to morphological variation.

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Lorenzo-Morales, Jacob, Ines Sifaoui, María Reyes-Batlle, Fernando Lares-Villa, Luis Fernando Lares-Jiménez, Maritza Omaña-Molina, Naveed A. Khan, and Sutherland K. Maciver. "Special issue on Free Living Amoebae (FLA): Recent advances presented at the XVIIth International Meeting on the Biology and Pathogenicity of Free-Living Amoebae (FLAM, 2017), Zarzis, Tunisia." Experimental Parasitology 200 (May 2019): 36. http://dx.doi.org/10.1016/j.exppara.2019.03.010.

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Nadia, Mars, Houcine Lassad, Zaafouri Abderrahmen, and Chaari Abdelkader. "Influence of temperature and irradiance on the different solar PV panel technologies." International Journal of Energy Sector Management ahead-of-print, ahead-of-print (December 4, 2020). http://dx.doi.org/10.1108/ijesm-06-2020-0002.

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Abstract Tunisia has high solar radiation levels, which makes it suitable for the installation of photovoltaic (PV) systems. The design of these kinds of systems is an important step because there are many crucial factors to assess the PV module efficiency such as temperature, module types and solar radiation.This paper aims to give an analysis of the most influencing factor for selecting location. In fact, after estimating the PV panel inclination, the solar radiation and the temperature in “Zarzis” (southeastern of Tunisia), a comparative analysis among the different PV panel types was given. Additionally, to find which technologies are suitable for the climate conditions of this area, it is important to compare the effect of temperature and solar radiation on their performances.

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Bouzaida, Mohamed Amir, and Houda Doukali. "ÉVALUATION DE LA DURABILITÉ DES EXPLOITATIONS AGRICOLES IRRIGUÉES EN ZONES ARIDES TUNISIENNES PAR LA MÉTHODE IDEA: CAS DE LA RÉGION DE ZARZIS." New Medit 18, no. 4 (December 20, 2019). http://dx.doi.org/10.30682/nm1904g.

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In southern Tunisia water for irrigation is very important. Its management requires adequate control to ensure the sustainability of the irrigated lands. Affected by desertification, natural resources are limited. Intensification and excessive irrigation are leading to the degradation of the quality of these resources, imposing an obstacle for agricultural development. In this work, an analytical study of irrigated perimeters in Zarzis was carried out to identify their main characteristics. The aim is to evaluate the socio-economic and environmental impacts of irrigation water on farming system sustainability, using the IDEA method by analyzing the three sustainability scales (agro-ecological, socio-territorial and economic). The study is based on a sample of 39 farms, characterized by a limited socio-territorial scale, in which the component “Quality of products and territories” is unsatisfactory. The economical aspect it is characterized by a good transmissibility, depending on financial autonomy degree. The results in the agro-ecological scale are the highest. The assessment of the sustainability of irrigated lands requires the analysis of interactions between these three scales.

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Journal articles on the topic 'Zarzis (Tunisie)'

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