Mustapha Hasnaoui

Faculté des Sciences et Techniques de Beni Mellal · Department of Biology

The Dayet Er-Roumi (classified as a Site of Biological and Ecological Interest) is the only permanent natural lake of the region of Khemisset, Morocco. This lake is interesting however it is a poorly known freshwater fish resource. An ichthyological study was carried out during the year 2019, with the aim to characterize the populations, identify a...

Fishes are an important component of human nutrition, mainly acting as source of essential fatty acids in the prevention of cardiovascular disorders. The increase in their consumption has led to a growth of fishes waste; therefore, the disposal and recycling of waste has become a key issue to address, in accordance with circular economy principles....

Lagoons play an important socio-economic role and represent a precious natural heritage at risk from fishing pressure and chemical and biological pollution. Our research focused on better understanding the discrimination of fish biodiversity, the detection of non-indigenous species, and the valorization of commercial indigenous species at Mellah la...

The most representative organisms of the Harbor of Gaeta Gulf in South Italy were analyzed for biofouling by visual census and confirmed later by molecular approach on an artificial Conatex panel dipped 3 m into a eutrophic area during the Covid-19 pandemic. Mitochondrial Cytochrome C oxidase subunit 1(COI) gene was sequenced from 20 different mari...

The removal of heavy metals from industrial waste has become crucial in order to maintain water quality levels that are suitable for environmental and species reproductive health. The biosorption of Zn+2 and Fe+3 ions from aqueous solution was investigated using Ulva lactuca green algal biomass and Corallina officinalis red algal biomass, as well a...

The mortality parameters and exploitation of Sander lucioperca were studied for the first time in the reservoir of Al-Massira Dam. These parameters were estimated based on size-frequency data processed by FISAT II software. Parameters such as total mortality (Z), natural mortality (M), fishing mortality (F), and exploitation rate (E) obtained are r...

Weight-length relationship and relative condition factor of Micropterus salmoides (Lacépède, 1802), Cyprinus carpio (Linneaus, 1758) and Oreochromis niloticus (Linnaeus, 1758) caught in the Al-Massira Dam Lake Abstract. The current study describes the length-weight relationships and relative condition factors (Kr) of three species during the period...

The growth parameters of three species were studied for the first time in the Al-Massira Dam. A total of 137 individuals were examined during this study between September 2020 and January 2021. The estimation of growth parameters was carried out by size structure analysis using FISAT II software. The growth parameters of Micropterus salmoides, Cypr...

The protection of the Freshwater ecosystem is necessary for the ecosystem equilibrium of the aquatic fauna and a healthy diet for the local community. Lake Dayet Er-Roumi (SIBE) is under the pressure of various pollution forms that are, most of the time, a result of human activities. The purpose of this study is to assess the various forms of pollu...

Several indicators show that the world population is rapidly increasing with prospects of reaching close to 10 billion people in 2050. Optimal production of fish is a tentative goal to ensure human feeding and resources sustainability. The present study was performed on eggs of the silver carp, collected during the breeding season of consecutive ye...

The Dayet Er-Roumi Lake is one of the main Lakes in Morocco (SIBE), it's the only permanent continental Lake of low altitude. In recent decades, a significant deterioration in water quality generated by various pollutant discharges has been identified. The present study aimed to evaluate the metal contamination, assess the pollution degree, and qua...

The main of this study is to estimate the maximum density of fish in the growing basins of rainbow trout (Oncorhynkiss Mykiss) species by mathematical equations, which will be used to introduce environmental concerns. Indeed, these equations make it possible to estimate the maximum density of fish fed by the extruded feed B and the two elaborated e...

The management of natural surface water resources requires an understanding and knowledge of water quality. The Lake Dayet Er-Roumi (classified as a Site of Biological and Ecological Interest (SIBE)) is the only permanent continental lake of low altitude in Morocco, this international attraction site is subject to various sources of anthropogenic p...

Among the applications of medicinal plants, it is their use as antimicrobial agents. The objective of this study was to investigate the effect of some essential oils against an etiological pathogen Flavobacterium spp. responsible for several lost in rainbow trout, ( Oncorhynchus mykiss ) hatcheries, the strains used in this study were isolated from...

The contamination of aquatic ecosystems with metals remains a serious environmental problem of growing concern. Sediments are often studied as reservoirs or wells for many chemical pollutants. They are micropollutant traps; they also indicate the watercourse's historical pollution, lagoons, and lakes…Lake Dayet Er-Roumi (SIBE) is the only permanent...

The present study is performed in order to determine the relationship between fatty acid (FA) profile of silver carp (Hypophthalmichthys molitrix) eggs and fertilization success, embryos viability and larval production. Mature unfertilized ova were collected during the reproductive season from 23 mature and healthy females, reared in Deroua fish fa...

Sander lucioperca hasbeen introduced in Morocco since 1939. This noble fish has shown a good ability to acclimatize to Moroccan conditions and has developed well [1]. The present study examines diet composition and predator-prey relationships that are dependent on size and weight between sander and its preys during the period October 2018-April 201...

Fish farming is a rapidly growing production worldwide, where it covers nearly 50% of fish inputs for human consumption. Releases to the natural environment are also an important issue, especially as they are visible and quantifiable, being emitted directly into the water. The physicochemical analyzes of the various Oued Er-Rbia points (ES, P1, P2,...

Water temperature influences the life of species in aquatic ecosystems. Our study was carried out in Deroua Fish farm hatchery (Fkih Ben Salah, Morocco) to assess the effect of climate change effects on predation activity and growth of largemouth bass, Micropterus salmoides. It was conducted in six circular tanks (1.5m3) each one receives five spec...

In order to compare the effects of three types of extruded food (A, B and C) on the growth of rainbow trout, an experimental test was conducted on June 15, 2015 at a rainbow trout farming station near river of Oumerrrabi .Morocco. The comparison of three foods of different composition and energy is performed in isoenergetic conditions. Six basins w...

Aquaculture is a sector of food production that has evolved significantly in recent years. The sustainability of fish farming is today confronted with a regulatory constraint of environmental protection and a socio-economic context of limitations of water consumption.

The objective of this work is to complete the work already carried out on the fish farming station of Deroua (Province Fkih Ben Saleh, Morocco), monitoring the variability of physico-chemical parameters of water and biological (zooplankton, Phytoplankton) at the nursery ponds of three carp species: Hypophthalmichthys molitrix (silver carp), Ctenoph...

Some bacteria play a considerable role in the pathology of fish, sometimes. They may infect with one or more fish species, which makes them true pathogens, capable of infecting most healthy animals. However, only opportunistic pathogens whose infectivity is expressed by a decline in the fish condition and of its natural defenses, are linked to dist...

Continental fish farming has become one of the essential activities ensuring food security and maintaining high socio-economic impact values. Yet, inland aquaculture is still facing major constraints, relating particularly to water supply and quality. Water quality represents a major concern in aquaculture, as it may considerably result in limiting...

Several researchers studied the factors that can affect seed production in aquaculture (Bromage et al. 1992; Kjesbu et al. 1991). Variations in egg quality can affect the successful production of larval fish in aquaculture (Treasurer and Ford 2010).

Knowing the Fish feeding diet in its natural environment is an important step to understand its biology and ecology. It summarizes, not only the predatory activity of these species, but can also explain growth variations, feeding and food research behavior, migration, and even some aspects of reproduction.

The objective of our study is to test the efficacy of an extruded food on the growth performance of rainbow trout (Oncorhynchus mykiss Walbaum, 1792) at the fish farm Ain Aghbal in Azrou (Morocco). Generally, only the biochemical composition (percentages of moisture, proteins, lipids and carbohydrates) and the (digestible and crude) energies of the...

Our sample consists of 144 people with 92 cases of palsy cerebral, (79 cases aged 3 to 18 years, 13 cases aged 19 and over). The etiology of disabilities was evaluated based on a structured questionnaire, the processing and analysis of data made by the software sphinx 2 plus. The perinatal etiologies were dominated by hypoxia in 6.3% cases, postnat...

Les résultats présentés dans ce travail proviennent d’une enquête rétrospective sur les étiologies de déficiences motrices chez l’enfant et chez l’adulte, réalisée à Béni-Mellal. L’échantillon est constitué de 144 personnes présentant des déficiences motrices dont 92 personnes sont atteintes de paralysie cérébrale, âgées de 3 ans à 18 ans. L’évalua...

Keywords: Deafness; Etiology; Bilateral sensorineural; Presbycucis Objective.– We conducted a study of 210 patients with hearing impairments of perception whose objective was to determine the probable causes of occurrences of these hearing loss in children and adults. Methods.– The etiological diagnosis of patients sensorineural deafness was based...

Keywords: Poverty; Deafness; Mental retardation; Motor retardation Background.– To determine the socioeconomic and cultural factors risk of mental, hearing and mobility impairments. Methods.–A survey was conducted among 417 families of patients with mental retardation, hearing, or motor. Processing and data analysis were done by the Sphinx 2 plus....

Mots clés : Pauvreté ; Surdité ; Déficience mentale ; Déficience motrice Objectifs .– Déterminer les facteurs de risque socioéconomiques et culturels des déficiences mentales, auditives et motrices. Méthodes .– Une enquête a été faite auprès des familles de 417 patients souffrant d’une déficience mentale, auditive ou motrice. Le traitement et l’ana...

Three models were defined depending on the location of the maximum of chlorophyll’a’ either in the axis coast/ offshore and in the water column (shallow or deep water). During 1998, in the 1st model two cells of great contents of chlorophyll ’a’ were met, one in the coast and the other in the offshore.The 2nd model has an opposite evolution compare...

The industrial exploitation of the agarophyte, Gelidium sesquipedale, is an important part of the economy of Morocco, however the species is in danger of being overexploited. The development of research on the biological cycle of the species enbles a better understanding of environmental influencies on its reproduction periods and of the effect of...

L'étude des variations des descripteurs physiques, chimiques et biologiques des eaux d'un réservoir de maturation du lagunage mixte (Ben Slimane, Maroc), a montré une augmentation des valeurs de certaines variables (oxygène dissous, transparence) après le 36ème jour de rétention en raison d'une remise en solution. A 36 jours de rétention, la chute...

Les sédiments utilisés dans cette étude sont prélevés dans deux milieux différents (bassin de maturation du lagunage de Boujaad et étang d'alevinage de la station Deroua, Béni-Mellal) dans le but de comprendre les conditions du milieu qui provoquent les échanges du phosphore à l'interface eau-sédiment et de comparer les échanges du phosphore à ce n...

A study of physical, chemical and biological descriptors of the water in the storage reservoir of a combined stabilization pond (Ben Slimane, Morocco), during maturation, showed an improvement of the purification output for some variables after 36 days of retention. Such an environment, rich with a range of different nutrients, allowed an optimal d...

Dans les étangs d'alevinage à la station de la Deroua, le phytoplancton est représenté par des populations se succédant dans le temps. Ces étangs montrent une similarité vis-à-vis de la variabilité des descripteurs de la qualité de l'eau. Les résultats statistiques montrent une variabilité des paramètres physiques et chimiques dépendant des interve...

L'étang de grossissement des carpes en polyculture en climat semi-aride présente un développement excessif des Cyanobactéries en été. Ces dernières semblent affecter la production de la carpe argentée (Hypophthalmichthys molitrix) dans cet étang. La diminution de la vitesse de croissance à la fin de la période de grossissement (- 0,38 %/j) est liée...

The carp pond in semi-arid climate showed an excessive development of Cyanobacteria in summer. The high diminution of silver carp specific growth rate was probably depending on the presence of this phytoplanktonic group and a part of energy was used for the fabrication of gametes. The specific growth rate in the end of work period was - 0.38%/j. Th...

An experimental approach of the phosphate exchange across the water–sediment interface in fish ponds of the Deroua farm (Bni-Mellal, Morocco) is needed to understand the phosphate dynamics in these ponds in relation to their water quality. During this study, we conducted experiments to determine the P-fractions of the different pond sediments and t...