Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences, E. Medical Entomology & Parasitology2090-07837120151201Condition factor and gastrointestinal parasitic fauna of three fish species as stress indicators in lekki lagoon, Lagos, Nigeria.1131448910.21608/eajbse.2015.14489ENAkinsanyaBamideleDepartment of Zoology, University of Lagos, NigeriaKuton , MinasuPenthoDepartment of Zoology, University of Lagos, NigeriaSaliu JosephKayodeDepartment of Zoology, University of Lagos, NigeriaOyebolaLambeDepartment of Zoology, University of Lagos, NigeriaUkwa UcheDavidDepartment of Zoology, University of Lagos, NigeriaJournal Article20180924Host condition factor and Gastrointestinal<br />protozoa and helminth parasites in <em>Synodontis clarias, Synodontis<br />filamentosus </em>and<em> Chrysichthys<br />nigrodigitatus</em> in Lekki lagoon, Lagos,<br />Nigeria were investigated from September, 2014 to February, 2015. Eighty specimens each of both <em>Synodontis clarias</em> and<em> Chrysichthys nigrodigitatus </em>and fifty <br />of <em> Synodontis filamentosus </em><em> </em>were examinedfrom Lekki lagoon <br />and dissected for parasitological investigation<br />The. Condition factors of all individual fishes were determined. Median<br />condition (K < 1.41 and K > 1.41) for<em> Synodontis clarias, </em>(K <<br />2.14 and K > 2.14) for<em> Synodontis filamentosus</em> and (K < 1.49 and K<br />> 1.49) for<em> Chrysichthys nigrodigitatus</em> were used in grouping the individuals. Heterogeneous infection of intestinal protozoa<br />in <em>C. nigrodigitatus </em>were greater among the low condition individuals; 0.18 compared to high condition individuals with 0.10. This also aplies to<em> S.<br />clarias, </em>low condition individuals; 0.28, while high condition individuals<br />had infection rate of 0.13. <em>S. filamentosus</em> showed a different trend,<br />the rate of infection were greater among the high condition individuals; 0.15,<br />compared to low condition of 0.10. The rate of infection of parasitic helminths<br />in <em>C. nigrodigitatus,</em> <em>S. clarias</em> and <em>S. filamentosus</em> were<br />higher among low condition individuals compared to high condition individuals.<br />High condition individuals of the fish species harbor more parasites than low<br />condition individuals. Infected individuals of low condition factor (K <<br />1.49) of <em>C. nigrodigitatus </em>had a greater histopathological alteration index (HAI,<br />12.0) compared to the high condition individuals (HAI, 6.0). These individuals<br />had from mild to severe ulceration of the mucosa and congestion of the blood<br />vessels. In infected individuals of low condition factor (K < 1.41), (K <<br />2.14) of <em>S. clarias </em>and <em>S . filamentosus</em>,<br />there were mucosal edema and haemorrhage in their intestinal walls. They also<br />had greater histopathological alteration index (HAI, 24.0), (HAI, 18.0)<br />compared to the high condition individuals (HAI, 10.0) and (HAI, 4.0)<br />respectively. These low<br />condition infected individuals in the population are multi-stressed and have<br />showed significant pathological responses in their tissues.Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences, E. Medical Entomology & Parasitology2090-07837120151201Hemolymph Responses of The Xanthid Crab Actaea hirsutissima to Rhizocephalan Sacculina ignorata From Hurghada, Red Sea15231449110.21608/eajbse.2015.14491ENNasserAbdelsaterZoology Dept., Faculty of Science, Al-Azhar University, Assuit branch, Assuit, EgyptMaged M. A.FoudaZoology Dept., Faculty of Science, Al-Azhar University, Assuit branch, Assuit, EgyptMohsen A.MoustafaZoology Dept., Faculty of Science, Al-Azhar University, Assuit branch, Assuit, EgyptJournal Article20180924The effect of parasitic invasion by the Rhizocephala <em>Sacculina ignorata </em>on brachyuran crabs <em>Actaea hirsutissima</em> was studied. The organic constituents (glucose, total proteins, albumin, triglycerides and cholesterol) of the haemolymph of the infected and normal crab <em>Actaea hirsutissima</em> were estimated. A significant reduction in serum protein and albumin was observed in parasitized individuals; while serum glucose, cholesterol and triglycerides concentrations were significantly increased. Parasitism by <em>S</em><em>.</em><em> ignorata </em>dramatically affects the serum chemistry of infected crabs. T-test values were statistically highly significant between healthy and infected specimens. Egyptian Society of Biological SciencesEgyptian Academic Journal of Biological Sciences, E. Medical Entomology & Parasitology2090-07837120151201Molecular Identification of Entamoeba histolytica Using RAPD Markers25291449310.21608/eajbse.2015.14493ENZubaidah N. M.Al-barzinjyDentistry college / kiruk universityJournal Article20180924The aim of this study to isolate and identified of <em>Entamoeba histolytica </em>from isolated from patients and study the genetic diversity among these isolates by using RAPD. Collected 20 samples from 7samples were isolated. <em>Entamoeba histolytica </em>isolates were characterized depending on its morphological, then extracted DNA from its. RAPD markers randomly banding with sites of genome where the primer NPN-07 achieved discriminative power (19.1) and 43 bands, The dendrogram of RAPD was reverted than isolates number 5 and 7 had the great genetic diversity 0.33361 while the isolates number 5 and 6 had the lowest genetic similarity 0.98521.