El Alami Majida

• Doctor
• Professor (Full) at Abdelmalek Essaâdi University

A population of red swamp crayfish Procambarus clarkii, (Girard, 1852) was studied in four wetland classified Ramsar sites in Morocco which are Merja Fouwarat, Merja Zerga, and Rmel plateau and Bas Loukous. The aim of this study was to collect the first information on the size and weight of Procambarus clarkii for the reasons of its invasion succes...

At intermediate spatial scales, the distribution of Ephemeroptera, Plecoptera, and Trichoptera (EPT) species is significantly influenced by the environmental characteristics of riverine habitats. These freshwater organisms are sensitive to changes in stream flow and water temperature, which can significantly affect their diversity and community str...

Spatial pattern comprehension, dynamism of energy, and transfer of matter in running freshwater systems are significant for the functional composition of aquatic communities. Recently, the trait-based approach has become the center of functional assessment. The trait-based approach can complement structural bioassessment tools and has the advantage...

Morocco′s aquatic biodiversity remains insufficiently studied, especially in terms of invertebrates, with numerous gaps persisting, even in protected areas. This study combines our research with existing studies to provide a comprehensive list that encompasses both old and new faunistic and distributional records of three orders of aquatic insects...

We describe a new species of the genus Calamoceras which currently has only two species: Calamoceras illiesi Malicky & Kumanski 1974 and Calamoceras marsupus Brauer 1865. We also discuss its ecology by analyzing some biophysical parameters. The larva and the adult of this new species, Calamoceras riffensis sp. nov. have been found by specialists fr...

This study aimed to determine the impact of various pressures on the functional composition of OCH (Odonata, Coleoptera, and Heteroptera) in streams within the northwest Rif region of Morocco. We examined how OCH traits respond to human-induced pressures in selected stream sites in Morocco’s northwestern Rif region. OCH specimens were collected fro...

Aquatic ecosystems are exposed to human activities, which has a negative impact on their health. To assess the quality of Selouane Wadi's surface water, physicochemical and biological characterizations were carried out at a total of seven stations, quarterly between September 2021 and June 2022. In addition, an analysis of heavy metals in sediments...

Aquatic insects play a crucial role in freshwater ecosystems, and their diversity and distribution are important indicators of ecosystem health. In this study, we present old and new faunistic and distributional data on three orders of aquatic insects (Odonata, Hemiptera, and Coleoptera) in the Tazekka National Park, located in the Eastern Middle A...

A new species belonging to the genus Habrophlebia Eaton, 1881 is described at the nymphal stage from the Rif Mountains of Morocco. This species presents unique features , such as the chorionic arrangement of the egg and the ornamentation of the posterior margin of abdominal tergites. It is compared to all west European Habrophlebia species and a ta...

Baetis rifensis sp. nov. is the first representative of the Baetis fuscatus group to be described from the Maghreb. It was collected from streams in the Rif region of northern Morocco. All species of the B. fuscatus group are morphologically very similar, with slight differences in colour. Thus, in addition to morphological description, species del...

A new species of Alainites is described from northern of Morocco Alainites albai sp. nov. It can be separated from the other west Palearctic species by the gill number, the spination of the distal margin of tergites, the leg setation, and the paraproct shape and spination. This species is widespread in the study area but never abundant. It prefers...

This study aimed to evaluate the effects of the Martil River rehabilitation project and recently constructed dam infrastructures to reduce flood risks and to promote local socio-economic development on the ecological integrity of the river. The assessment focused on changes in fluvial landforms over time and the evaluation of aquatic ecosystems bas...

The involvement of trait-based approaches is crucial for understanding spatial patterns, energy flow and matter transfer in running water systems, which requires consistent knowledge of the functional structures of aquatic communities, with the advantage of combining physical properties and behavioral mechanisms of food acquisition rather than the...

The Draa river basin is located south of the High Atlas Mountain rangee in Morocco. The Ephemeroptera (mayflies) fauna of its three sub-basins: the High, Middle, and Lower Draa are poorly known. This study contributes to the knowledge of Ephemeroptera and its distribution in relation to environmental parameters in this area. The larvae of Ephemerop...

Among mayflies, Baetidae are often considered as easy to recognise at the family level, but difficult to identify at lower level. In several faunistic or ecological studies, the identification remains at the family level; Baetidae are generally considered as widespread and ubiquitous, therefore as poorly informative for ecological studies or bioass...

Based on recently collected larvae from Algeria and Morocco, the species delimitation within the genus Centroptilum Eaton, 1869 in that region is validated. Two new species are described and illustrated, one from north-eastern Algeria, and one from North Morocco, using an integrated approach with morphological and molecular evidence. A table summar...

The Mediterranean is one of the most biodiverse areas of the Paleartic region. Here, basing on large data sets of single copy orthologs obtained from transcriptomic data, we investigated the evolutionary history of the genus Dugesia in the Western Mediterranean area. The results corroborated that the complex paleogeological history of the region wa...

We describe a new species of Prosopistoma collected in the High Atlas Mountains of Morocco. Prosopistoma maroccanum sp. nov. appears to be morphologically more similar to the European highly endangered P. pennigerum (Müller, 1785) than to the other Maghrebian species, P. alaini Bojkova & Soldán, 2015. A gene tree including the few available barcode...

Recent research in various Moroccan areas allowed an update and a revision of the Moroccan Ephemeroptera checklist. In this case, 54 species are now listed, belonging to 10 families and 26 genera. The distribution of all studied species is discussed, as well as their biogeographical affinities. Moroccan Mayflies are characterized by a clear dominan...

La dégradation accélérée des forêts est un défi majeur pour les gestionnaires. Le reboisement constitue alors une solution importante pour l’amélioration des services écosystémiques voire la survie des écosystèmes. Comparée à d’autres essences comme l’Eucalyptus, les pins renferment une biodiversité plus élevée. Nous avons étudié la phytodiversité...

Data on the caddisfly fauna of Algeria are incomplete and the available information concerns only some regions. In the present contribution, new distribution data on Trichoptera in El Harrach Wadi are given. Sampling campaigns were conducted during 2010–2013 at 10 sampling sites where eleven species were collected as follows: Hydropsyche fezana Nav...

The taxonomy of mayflies in Wadis of Seybouse and Kebir-Rhumel in Algeria is poorly studied since a long time. This research aimed at studying diversity and distribution of Ephemeroptera fauna at the Kebir-Rhumel and Seybouse Wadis. Using a hand net, mayfly larvae were collected from the running waters along an upstream-downstream gradient at seven...

The current study aimed to examine the responses of Ephemeroptera, Plecoptera and Trichoptera (EPT) taxa to the major physicochemical (temperature, pH, electrical conductivity, dissolved oxygen, biological oxygen demand, chemical oxygen demand) and hydro-morphological (stream width, water depth and current speed) factors affecting their abundance,...

The invertebrate communities of running waters are known to be highly sensitive to environmental disturbances and have, therefore, high interest in bio assessment. The objective of this study is to reveal, through a case study (the Upper Sebou, Morocco), the trends of these communities in the South Mediterranean region in a context of global change...

Procambarus clarkii, one of the most invasive aquatic species in the world, is present in the Mediterranean estuarine regions. The invasion of this species in these wetlands has a multitude of impacts, including the impact on flora. This study examines the floristic diversity and abundance of Procambarus clarkii in this wetland, as well as whether...

In 2014–2019, we carried out an examination of Trichoptera of the Moulouya River basin in the Oriental, Fèz-Meknès and Drâa-Tafilalet regions of Morocco. Caddisflies of the territories of the High Plateau, the oriental Sahara and the eastern parts of the Rif, Middle Atlas and the High Atlas have been studied for the first time. We collected and ide...

Gharb (northwest) is the area in Morocco where rice planting is very important due to its considerable water resources. The area is crossed by the tributaries of the Sebou river over a length of about 225 km before flowing into the Atlantic Ocean at Mehdia city in Morocco. Recently, an invasive classified crayfish has been introduced: the red swamp...

In recent decades there has been a significant increase in the presence of plastics in the environment, particularly in the marine environment, due to its great applicability in all fields of life. The effects of chronic ingestion of contaminated microplastics are still unknown, but several studies suggest that there is a potential gateway to the t...

The Red swamp Crayfish (Procambarus clarkii, Girard, 1852) in developed countries has many ecological, cultural and economic aspects. On the socioeconomic point of view, the impacts of this exotic species are real. The red swamp crayfish, is a species probably introduced by man in the NorthWest region of Morocco. The species was introduced for econ...

RAMSAR sites are a wetlands that have specific criteria, internationally recognized, and very important not only in the countries where they are located but for all humanity. Recently, the introduction of a species of crayfish classified as invasive in Morocco: Procambarus clarkii has created a debate among the local population, wetland conservator...

The red swamp crayfish (Procambarus clarkii) is a species from the northeast of Mexico and the central south of the United States (Louisiana), actually is the dominant macroinvertebrate in several countries. It was introduced to several countries, generally for gastronomic reasons or to repopulate destroyed areas by a disease. While the first intro...

The red swamp crayfish (Procambarus clarkii) is a species from the northeast of Mexico and the central south of the United States (Louisiana), actually is the dominant macroinvertebrate in several countries. It was introduced to several countries, generally for gastronomic reasons or to repopulate destroyed areas by a disease. While the first intro...

The aim of this study is to investigate the longitudinal zonation of macroinvertebrates assemblages in the Za River basin, the main tributary of Moulouya River (Morocco). This work carried out in three campaigns between March and August 2014 on 12 stations selected. This study allowed the identification of 137 species classified in 109 genera and 6...

Pour contribuer à la connaissance de la biodiversité faunistique des eaux courantes du projet du Parc naturel de Bouhachem (PPNB), une étude hydrobiologique a été menée sur trois ordres d'insectes aquatiques: les Ephéméroptères, les Trichoptères et les Plécoptères. L'étude taxonomique de 7632 individus appartenant aux trois ordres susmentionnés et...

New reports of aquatic insects (Coleoptera, Odonata, Hemiptera, Ephemeroptera and Trichoptera) from Medjerda river basin in Tunisia are presented. 61 species of aquatic insects belonging to 45 genera, 22 families, and 5 orders are listed. 5 species of Coleoptera (Gyrinus (Gyrinus) caspius Ménétries, 1832, Hydroporus marginatus (Duftschmid, 1805), D...

The quality of natural surface water depends on natural and anthropogenic constraints, as well as on the management and the economy of this water. These constraints are to be considered to improve or, quite simply, conserve water sources without degrading them. However, anthropogenic activity remains the main cause of the degradation of the quality...

Abstract: In general, coastal areas can be considered under an important anthropogenic pressure due to human settlements are often more concentrated in these areas. As consequence, high levels of some pollutants derived from different human activities can be found in coastal waters. In the last years, many studies have been focused to the evaluati...

In general, coastal areas can be considered under an important anthropogenic pressure due to human settlements are often more concentrated in these areas. As consequence, high levels of some pollutants derived from different human activities can be found in coastal waters. In the last years, many studies have been focused to the evaluation of micro...

Pour contribuer à la connaissance de la biodiversité faunistique des eaux courantes du projet du Parc naturel de Bouhachem (PPNB), une étude hydrobiologique a été menée sur trois ordres d'insectes aquatiques: les Ephéméroptères, les Trichoptères et les Plécoptères. L'étude taxonomique de 7632 individus appartenant aux trois ordres susmentionnés et...

Community assembly is determined by a combination of historical events and contemporary processes that are difficult to disentangle, but eco-evolutionary mechanisms may be uncovered by the joint analysis of species and genetic diversity across multiple sites. Mountain streams across Europe harbour highly diverse macroinvertebrate communities whose...

L'évaluation de l'état écologique des eaux de surface du haut bassin versant du Loukkos, qui est l'un des bassins les plus importants du Nord du Maroc, a été réalisé par le biais d'un suivi saisonnier durant l'année 2014. Le bassin versant est soumis à plusieurs impacts en mesure d'altérer la qualité des eaux, notamment la culture de l'olivier et l...

The assessment of the ecological status of the surface waters of the Upper Loukkos watershed, which is one of the most important basins in northern Morocco, was carried out through seasonal monitoring during 2014. The watershed is subject to several impacts in order to alter the quality of its waters, particularly the cultivation of the olive tree...

The Moulouya's watershed and the Oriental Morocco have been always considered as the poorest in terms of Ephemeroperological settlement. Thanks to our repetitive campaigns, and the difficult territories carried out for the first time, including the High Plateaus, the oriental Sahara and the oriental parts of the Rif, Middle Atlas and the High Atlas...

To contribute in the knowledge and the conservation of the faunistic biodiversity in streams of the ultramafic massif of Beni Bousera and in the adjacent sites, a faunal and ecological study of Ephemeroptera was started since autumn 2013 to autumn 2015 on 12 stations in this region and 14 others outside of this typical region in order to make a com...

Résumé : Ce travail constitue une première en son genre pour l’étude de la qualité physico-chimique et microbiologique des cours d’eau de Tahaddart et offre un complément aux études réalisées au niveau de Laou. Elle repose sur une méthodologie pluridisciplinaire basée sur le croisement des outils physico-chimiques, microbiologiques et statistiques...

Résumé: L’évaluation de l’intégrité écologique de deux bassins versants de la péninsule Tingitane Laou et Tahaddart par le biais de l’indice de qualité des bandes riveraines (QBR) et l’indice biotique IBMWP (The Iberian Biological Monitoring Working Party) a permis de montrer l’importance de ces indices dans les études de la qualité des eaux de sur...

Afin de contribuer à l'évaluation de l'état de la biodiversité aquatique du projet du Parc Naturel de Bouhachem, dont l'état de connaissance est très fragmentaire, une étude hydrobiologique a été menée sur trois ordres d'insectes aquatiques: les colé-optères, les odonates et les hémiptères. L'étude taxonomique de 1810 individus appartenant aux troi...

Article reçu le 07 octobre 2013 et accepté le 21 mai 2014. La présente étude traite la biologie et l'écologie des Macroinvertébrés aquatiques (Odonates, Gastéropodes et Diptères) des marais de Smir-Restinga. Elle a mis en évidence une richesse taxonomique qualitative et quantitative importante de ces derniers. Des échantillonnages saisonniers au ni...

To contribute to the knowledge and to the preservation of the faunistic biodiversity of the humid zones of the massif of Aurès, a faunistic study of the Mayflies was begun since january 2008 at january 2010 on 5 stations of the Abdi wadi, one of the most important wadis of the Saharian Atlas (82,19 km in length). This study allowed to analyze the l...

Pour contribuer à la connaissance et à la conservation de la biodiversité faunistique des zones humides du massif des Aurès, une étude faunistique des Ephéméroptères a été entamée depuis janvier 2008 à janvier 2010 sur 5 stations de l'oued Abdi, l'un des plus importants oueds de l'Atlas Saharien (82,19 Km de longueur). Cette étude a permis d'analys...

An overview of Moroccan stoneflies is presented as an annotated summary of published and unpublished records from 115 localities. These records have resulted in an updated species list reflecting taxonomic corrections and noteworthy range extensions for several species. A total of 28 species, belonging to 15 genera and seven families, is now known...

Amphinemura yasriarum sp. n., endemic to the Moroccan Rif, is described and compared to its clos - est relative A. chiffensis Aubert, 1956. The two species are separable in both sexes. A. chiffensis is only known from the Moroccan High-Atlas and we assume that it is an endemic of this mountain range where it lives at high altitudes. New faunistic d...

Amphinemura tiernodefigueroai sp. n., endemic of the Moroccan Middle-Atlas, and Capnioneura atlasica sp. n., endemic of the Moroccan High-Atlas, are described and illustrated. The two new species are reliably separable in both sexes. Comparative descriptions are given for Amphinemura berthelemyi Vinçon, Yasri & Lounaci 2013 and Capnioneura petitpie...

Le présent travail est une compilation exhaustive de l’ensemble des données personnelles et bibliographiques recueillies sur les Plécoptères du Maroc sous forme d’un atlas préliminaire. Cette compilation de 179 localités a permis de mettre à jour la liste établie pour le pays, de corriger, retrouver et d’élargir l’aire de répartition des anciennes...

Amphinemura tiernodefigueroai sp. n., endemic of the Moroccan Middle-Atlas, and Capnioneura atlasica sp. n., endemic of the Moroccan High-Atlas, are described and illustrated. The two new species are reliably separable in both sexes. Comparative descriptions are given for Amphinemura berthelemyi Vinçon, Yasri & Lounaci 2013 and Capnioneura petitpie...

A total and thorough characterization of the physicochemical and microbiological quality of surface waters of the two hydrographic networks Laou and Tahaddart was carried out by the means of a follow-up which was spread out over three consecutive years (from April 2007 to July 2009). The total physicochemical and microbiological quality was evaluat...

A total and thorough characterization of the physicochemical and microbiological quality of surface waters of the two hydrographic networks Laou and Tahaddart was carried out by the means of a follow-up which was spread out over three consecutive years (from April 2007 to July 2009). The total physicochemical and microbiological quality was evaluat...

Les Rhyacophilidae sont l'une des familles des Trichoptères les plus primitives et les plus abondantes dans les cours d'eau rifains marocains. L'échantillonnage faunistique de 62 stations réparties le long des réseaux hydrographiques rifains (Nord du Maroc) a révélé la présence de deux espèces appartenant à la famille des Rhyacophilidae: Rhyacophil...

In this study we compared streams crossing serpentinized outcrops with others on normal soils. Four rivers (Amazithen, Sidi Yahya Aarab, Jenane Nich, Aarkob) in the Beni Bousera serpentinized region and four (Laou, Bouhaya, Amsa, Amahrous) in neighbouring areas with normal soil were compared. Physico-chemical parameters of the water were measured,...

The nymph and egg of Acentrella almohades sp. n. are described and illustrated on the basis of material collected in southern Spain (in the upper reaches of the Guadalquivir River Basin) and Morocco (Rif Mountains and Atlas Mountains). Features distinguishing the new species from other European species are discussed and keyed.

Ce travail porte sur l’usage des indices biotiques dans l’évaluation de l’état de santé des bassins versants. Il s’agit de l’étude de la qualité biologique de l’eau par le biais des macroinvertébrés benthiques d’un bassin versant rifain (Nord du Maroc) Laou, en appliquant comme indice biotique l’IBMWP. Afin d’évaluer la fiabilité de cette indice bi...

editors), Sustainable management of Mediterranean coastal fresh and transitional water bodies: a socioeconomic and environmental analysis of changes and trends to enhance and sustain stakeholder benefits, ISBN 978-88-6453-015-4 (online) Abstract: Macroinvertebrates are an important link in the food chain of aquatic species. They are a primary food...

Editors Felicita Scapini, Jean-Marc Boffa, Louis F. Cassar, Elisabeth Conrad and Mariella Nardi

Ce travail porte sur l’usage des indices biotiques dans l’évaluation de l’état de santé des bassins versants. Il s’agit de l’étude de la qualité biologique de l’eau par le biais des macroinvertébrés benthiques de deux bassins versant rifains (Nord du Maroc) Laou & Tahaddart, en appliquant comme indice biotique l’IBMWP. Afin d’évaluer la fiabilité d...

El orden Trichoptera es rico en especies en la zona del Mediterráneo Occidental, pero el conocimiento de este grupo en la Península Ibérica y el norte de África resta aún de ser completo. Presentamos datos de tricópteros recolectados en 114 localidades de la región Mediterránea de la Península Ibérica y del Rif occidental. Además, proporcionamos da...

Ce travail porte sur l’étude de la qualité biologique de l’eau par le biais des macroinvertébrés benthiques de deux bassins versant rifains (Nord du Maroc) Laou & Tahaddart, en appliquant comme indice biotique l’IBMWP. Afin d’évaluer la fiabilité de cette indice biotique, nous avons réalisé en parallèle une étude sur la qualité physico-chimique et...

Aim To examine how the employment of both community- and population-level approaches can provide a wider view of the importance of contemporary and historical factors on current species distribution. We posit that community ecology should provide more information about contemporary factors, whereas population genetics should provide better informat...

Ce travail porte sur l’étude de la qualité biologique de l’eau par le biais des macroinvertébrés benthiques de deux bassins versant rifains (Nord du Maroc) Laou & Tahaddart, en appliquant comme indice biotique l’IBMWP adopté par la péninsule iberique. Afin d’évaluer la fiabilité de cette indice biotique, nous avons realisé en parallèle une étude su...

The Laou Basin is a main hydrographic net in northern Morocco. Its Mediterranean character favours a significant simuliid fauna. The present work is based on a study of 1068 specimens, collected from 19 positive sampling sites distributed along this catchment area. In all, 14 species are recorded from all seasons during 2003-2005. A checklist of th...

Bayed A. & Ater M. (éditeurs). Du bassin versant vers la mer : Analyse multidisciplinaire pour une gestion durable. Travaux de l'Institut Scientifique, Rabat, série générale, 2008, n°5, 37-45. 37 Contribution à la connaissance des Plécoptères (Insecta : Plecoptera) du réseau hydrographique Laou (Maroc nord-occidental) Résumé. La présente étude; men...

La prospection de 28 stations, réparties sur le bassin versant Laou dans la province de Chefchaouen et le bassin versant Tahaddart dans la province de Tanger (Maroc occidental), a permis de recenser 9 espèces de Plécoptères : 8 espèces dans le bassin versant Laou et 3 espèces dans le bassin versant Tahaddart. Ces espèces sont réparties en 9 genres...

Dans l'Assif Ait Mizane, la richesse spécifique et la densité des populations des Baetidae ont été étudiées dans des stations localisées entre 1300 et 3400 m d'altitude. 5 espèces ont été identifiées : 4 appartenant au Genre Baetis Leach 1815 et une au Genre Alainites Waltz & Mc Cafferty 1994. Les remplacements d'espèces amont-aval sont mis en évid...

El trabajo está basado en simúlidos recogidos a distintas fases de su desarrollo (larvas, pupas y adultos) entre 1998 y 1999 en las principales redes hidrográficas del macizo rifeño (norte de Marruecos). Se utilizó un análisis de los factores de correspondencias (AFC) para determinar las afinidades y relaciones ecológicas entre 28 especies y 85 est...

Seasonal sampling campaigns were conducted during 1988, 1998 and 1999 at 130 sampling stations distributed along 15 river basins in the Moroccan Rif Mountains. Four mayfly species were recorded for the first time in Morocco (Baetis meridionalis, Baetis punicus, Diphetor rhithralis and Procloeon bifidum) and the presence of Cheleochloeon dimorphicum...