Statistical study of the benthic communities of sources Ain Regrag, Sidi Bouali and Tataw (Middle Atlas, Morocco)
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2016, Vol 9, Issue 2
Abstract
The present work presents the results obtained from the sampling of benthic macro fauna on three major sources of freshwater in the Middle Atlas Morocco. The samples were taken monthly from January 2013 to December 2013 with a Surber NET with a width of mesh 400µm. A total of 22189 individuals belonging to 47 species were collected in the three studies 12 months of sampling stations. The statistical analyses by the ACP have shown several positive correlations between certain species creating benthic associations, so another vision of the multispecies trophic. The statistical tool has given rise to the involvement of the factor ‘season’ in the distribution of macro benthic species in the Tataw station, which would be manifested by a decrease or increase in abundance between seasons while in the source AR the vast majority of species are indifferent to a seasonal effect. The study of correlations between species and the physicochemical parameters of the environment revealed that, according to the station, several positive and negative correlations between some physicochemical parameters of the middle (T°C, Ca2 +, IP, dissolved O2) and some taxa colonizing studied habitats as the may flies, Baetis rhodani, Ecdyonorus ifranensis, the phoretic, Agapitus incertilus, the Aipteran, Simulium ornatum and the Amphipod Gammarus rouxii. Statistical analysis by ANOVA highlights the behavior of the species towards the two factors ‘time’ and ‘space’, indeed this review showed that for the majority of species (31 taxa), the number is stable in time but changes from one source to the other.
Authors and Affiliations
Imane Nechad, Mouhcine Fadil, Fatima Fadil
Keywords
Related Articles
- EP ID EP38928
- DOI -
- Views 131
- Downloads 0
Influence of Hydro-priming duration on Morpho-physiological traits of milk thistle under water stress
A split plot experiment with three replications was conducted in 2015, to investigate the effects of hydro-priming duration (P1, P2 and P3: 0, 8 and 16 hours, respectively) on some morpho-physiological traits of milk thi...
Mesophyll carbon intake concentrations exhibited high in citrus rootstocks grown on peat moss under water stress environment
The stomatal conductance (gs), photosynthesis rate (Pn), intercellular CO2 conc. (Ci), chlorophyll and morphogeneic data was collected from the 12 month old citrus rootstocks (Rough lemon, Gada dehi, Flying dragon, Brazi...
Role of Zn nutrition in membrane stability, leaf hydration status, and growth of common bean grown under soil moisture stress
Under controlled conditions four common bean genotypes (KS21486, D81083, Akhtar, and COS16) were exposed to drought by reducing soil moisture content from 100±5 % FC to 55±5 % FC, which supplied whether with 4.5 mg Zn...
Germination percentage and growing behavior of Salix tetrasperma (Willow) as affected by size of branch cutting and low polythene tunnel
Propagation through branch cuttings is one of the best methods to produced tree nursery the yield of the tree produced from a cutting can be higher then a tree produced from seedlings, the conditions provided to them ar...
Effect of temperature on the Biology of Harmonia Dimidiata FAB. (COLEOPTERA: COCCINELLIDAE) Reared on scizaphus graminum (ROND.) Aphid
The influence of five constant temperatures (16±1°C, 20±1°C, 24±1°C, 28 ±1°C and 32 ±1°C) on the biology and prey consumption of larvae, adult male and female beetles of the ladybeetle, Harmonia dimidiata (Fab.), (Cocc...