American Journal of Life Sciences

Volume 3, Issue 6, November 2015

  • Age, Growth and Demographic Structures of Thorny Flathead Rogadius asper, Cuvier, 1829 (Pieces: Platycephalidae) from the Coastal Waters of the Suez Gulf

    Manal Sabrah, Amal Amin, Aly El Sayed

    Issue: Volume 3, Issue 6-1, November 2015
    Pages: 1-6
    Received: Jun. 30, 2015
    Accepted: Jul. 22, 2015
    Published: Sep. 02, 2015
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    This article belongs to the Special Issue New Horizons in Basic and Applied Zoological Research
    Abstract: The age and growth of the Olive tail Rogadius asper exploited by the demersal trawl fishery in the Gulf of Suez were investigated during the fishing season 2014/2015. Ageing was done by sagittal otoliths for a sample of 675 ranged from 9.2 to 25.9 cm in total length (TL) with mean of 17.4±2.95 cm. The sex ratio was skewed in favors of females (1.6:... Show More
  • Age and Growth of the Areolate Grouper Epinephelus areolatus from the Gulf of Suez

    Ezzat Abd-Allah, Azza El-Ganainy, Alaa Osman

    Issue: Volume 3, Issue 6-1, November 2015
    Pages: 7-12
    Received: Jul. 05, 2015
    Accepted: Jul. 06, 2015
    Published: Sep. 02, 2015
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    This article belongs to the Special Issue New Horizons in Basic and Applied Zoological Research
    Abstract: Age and growth of the associated coral reef grouper, Epinephelus areolatus, were estimated for samples collected from the artisanal fishery in the Gulf of Suez during November 2013 and October 2014. Otoliths of 597 specimens ranged in length from 11.2 to 50.5 cm were used in age determination. The otoliths showed alternating opaque (light) and tran... Show More
  • A Key for Identification of Spiders at Qena Governorate, Upper Egypt

    Ahmad H. Obuid-Allah, Amal A. Mahmoud, ElAmier H. M. Hussien

    Issue: Volume 3, Issue 6-1, November 2015
    Pages: 13-23
    Received: Jul. 21, 2015
    Accepted: Jul. 22, 2015
    Published: Sep. 02, 2015
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    This article belongs to the Special Issue New Horizons in Basic and Applied Zoological Research
    Abstract: Spiders are one of the more diverse arthropod taxa, ranking seventh in global diversity, which makes them a fascinating group to study [1]. The correct identification of many spider species is considered problematic due to complex variation in morphology [2]. The Egyptian spider fauna are incompletely known due to scarcity of studies on this group ... Show More
  • Evaluation of Growth Performance of Nile Tilapia Oreochromis niloticus niloticus Fed Piophila casei Maggot Meal (Magmeal) Diets

    Ahmed E. Ali, Mohamed I. Mekhamar, Ali G. Gadel-Rab, Alaa G. M. Osman

    Issue: Volume 3, Issue 6-1, November 2015
    Pages: 24-29
    Received: Jul. 23, 2015
    Accepted: Jul. 24, 2015
    Published: Sep. 02, 2015
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    This article belongs to the Special Issue New Horizons in Basic and Applied Zoological Research
    Abstract: A relatively new approach is the use of insects as a source of animal protein in fish nutrition. Houseflies larvae utilise decaying organic waste to produce animal protein and the larvae can be used to produce a meal (magmeal). Interestingly study of the use of magmeal as substitute for fish meal in fish diets have increased in recent times. In the... Show More
  • Histopathological Studies on Trichodinosis of Farmed Oreochromis niloticus

    Mohamed Arafa Adly, Mohamed Abdelaziz Ahmed Abd El-Galil, Fayza M. Soliman, Fatma El Zahraa A. A. Ahmed

    Issue: Volume 3, Issue 6-1, November 2015
    Pages: 30-37
    Received: Aug. 27, 2015
    Accepted: Sep. 13, 2015
    Published: Nov. 29, 2015
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    This article belongs to the Special Issue New Horizons in Basic and Applied Zoological Research
    Abstract: The present study was planned to study the trichodinosis in the farmed freshwater fish Oreochromis niloticus and investigate the histopathological alterations on the skin and gills. The diseased fish had signs of irritation in the form of erratic swimming, swimming near borders, scratching against hard objects, detached scales, excessive and turbid... Show More
  • Production and Evaluation of Some Bioactive Compounds Extracted from Squilla (Oratosquilla massavensis) Shells

    Abouzeed A. S., Omayma E. Shaltout, Ibrahim S. M., Attia. R. S., Aboul-yazeed A. M.

    Issue: Volume 3, Issue 6-1, November 2015
    Pages: 38-44
    Received: Sep. 09, 2015
    Accepted: Sep. 10, 2015
    Published: Nov. 29, 2015
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    This article belongs to the Special Issue New Horizons in Basic and Applied Zoological Research
    Abstract: This work was performed to investigate the production and physicochemical properties of some bioactive compounds (chitin, chitosan and astaxanthin) extracted from squilla (Oratosquilla massavensis) shells. Chemical composition of squilla shells and chitin yield were determined. Results showed that pre-treated squilla shells contained 68.11% moistur... Show More
  • Greenwater, Marine Bacillus subtilis HS1 Probiotic and Synbiotic Enriched Artemia and Rotifers Improved European Seabass Dicentrarchus labrax Larvae Early Weaning Length Growth, Survival, Water and Bacteriology quality

    Salem Ahmed Md., Nour A. M., Srour T. M., Assem S. S., Ibrahim H. A., El-Sayed H. S.

    Issue: Volume 3, Issue 6-1, November 2015
    Pages: 45-52
    Received: Sep. 16, 2015
    Accepted: Sep. 16, 2015
    Published: Nov. 29, 2015
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    This article belongs to the Special Issue New Horizons in Basic and Applied Zoological Research
    Abstract: The present study conducted in Fish Reproduction & Spawning Lab., NIOF, Alexandria, Egypt. European sea bass Dicentrarchus labrax newly hatched larvae from 8 dph to the 40 dph was reared according to (Süzer et al., 2011). The 6 tanks was green water with N. salina Algal count not less than 300000 cell/ml. The experimental treatments using green wat... Show More
  • Evaluation of Adding Potassium Iodide and Thyroxin to Sea bream (Sparus aurata) Fingerlings Diets Containing Fenugreek as a Growth Promoter

    Ashraf El-Dakar, Shymaa Shalaby, Bahig Nemetalla, Norhan Saleh, Eman Sakr, Mohamed Toutou

    Issue: Volume 3, Issue 6-1, November 2015
    Pages: 53-61
    Received: Sep. 20, 2015
    Accepted: Sep. 22, 2015
    Published: Nov. 29, 2015
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    This article belongs to the Special Issue New Horizons in Basic and Applied Zoological Research
    Abstract: This study was conducted to investigate the effect of addition of potassium iodide and thyroxin to sea bream fingerlings diets containing fenugreek as growth promoter on growth performance, feed utilization, body composition, biometric measurements indices, some serum constituents and histological characteristics of sea bream intestine. The 1st gro... Show More
  • Effects of Replacing Soybean Meal with Jojoba Meal in Sea Bream (Sparus aurata) Diets on Fish Performance

    Norhan E. Saleh, Mohamed M. Toutou

    Issue: Volume 3, Issue 6-1, November 2015
    Pages: 62-68
    Received: Sep. 21, 2015
    Accepted: Sep. 21, 2015
    Published: Nov. 29, 2015
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    This article belongs to the Special Issue New Horizons in Basic and Applied Zoological Research
    Abstract: The study aimed to investigate the effect of replacing soybean meal (SBM) by treated, either by heat (HJM) or by boiling (BJM), Jojoba meal (JM), to eliminate the negative effects of antinutritional factors, at 10, 20 and 30% replacing levels in diets of sea bream (Sparus aurata)) fingerlings on growth performance, nutrient utilization, body bioche... Show More
  • Inducing Molting by Eyestalk Ablation in the Red Swamp Crayfish, Procambarus clarkii from the Egyptian Freshwaters

    Mohamed A. Amer, Awaad A. M. El-Sayed, Khalid A. Al-Damhougy, Samir A. Zaahkouk

    Issue: Volume 3, Issue 6-1, November 2015
    Pages: 69-75
    Received: Sep. 30, 2015
    Accepted: Oct. 07, 2015
    Published: Nov. 29, 2015
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    This article belongs to the Special Issue New Horizons in Basic and Applied Zoological Research
    Abstract: Eyestalk ablation was used for inducing molting in the freshwater crayfish, Procambarus clarkii at the laboratory conditions. The results exhibited that, both of unilateral and bilateral eyestalk removal accelerated molting rate than in non-ablated or intact individuals of this species. The use of unilateral eyestalk removal has low effect, induced... Show More
  • Distribution of Short Neuropeptide F-like Immunohistochemical Reactivity in the Brain and Midgut of the Terrestrial Isopod, Armadillidium vulgare (Latreille)

    Maged M. A. Fouda, Makio Takeda

    Issue: Volume 3, Issue 6-1, November 2015
    Pages: 76-82
    Received: Sep. 30, 2015
    Accepted: Oct. 07, 2015
    Published: Nov. 29, 2015
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    This article belongs to the Special Issue New Horizons in Basic and Applied Zoological Research
    Abstract: Immunohistochemical reactivity against short neuropeptide F (sNPF-ir) was detected in both the brain–subesophageal ganglion (Br-SOG) and midgut epithelial cells of the isopod, Armadillidium vulgare. More than 194 cell bodies showed immunohistochemical reactivity in the brain and SOG. A wide distribution of sNPF-ir occured in the optic lobe (OL; 82 ... Show More
  • Stock Status of Pufferfish Lagocephalus sceleratus (Gmelin, 1789) Along the Egyptian Coast, Eastern Mediterranean Sea

    Mahmoud M. S. Farrag, Alaa Eldin A. K. El-Haweet, El-Sayed Kh. A. Akel, Mohsen A. Moustafa

    Issue: Volume 3, Issue 6-1, November 2015
    Pages: 83-93
    Received: Aug. 27, 2015
    Accepted: Sep. 13, 2015
    Published: Nov. 29, 2015
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    This article belongs to the Special Issue New Horizons in Basic and Applied Zoological Research
    Abstract: Stock of pufferfish Lagocephalus sceleratus was evaluated using specimens that collected monthly from the commercial fishing boats at landing sites along whole the Egyptian Mediterranean coast during 2012. Specimens were ranged from 5 to 83cm (TL) in length with an average 43.01± 13.5cm and total weight from 2.1-5400g with an average of 1103.27±850... Show More