Abdel Rahman El Gamal
Author's posts
Jul 11 2012
Natural spawning of African catfish (Clarias gariepinus) in Egypt – Video
Video credit: Lylian Lugobola (Tanzania) Information: Ismael Radwan (Egypt) Text: Abdel Rahman El Gamal This video shows the natural spawning of African catfish, Clarias garepinus which is claimed (by many producers) to be easier and more economical as compared to artificial spawning especially in the light of its reasonable productivity. …
Permanent link to this article: https://fishconsult.org/?p=3453
Jul 07 2012
Electric eel, Electrophorus electricus (characteristics, distribution, feeding, reproduction, electric charges) – Video
This video was filmed in the Freshwater Aquarium, Sea World, California, USA (June 2012) Review: Abdel Rahman El Gamal (Founder of the website and video channel) Characteristics: Despite its name, electric eel is not true eel but more closely related to catfishes. They have elongated, cylindrical, non-scaled bodies, typically growing to about 2 meters in length, and …
Permanent link to this article: https://fishconsult.org/?p=4271
Jul 06 2012
Marketing of fresh fish in South Sudan
Credit: Juma Frezar (South Sudan) The two photos show a traditional marketing of fresh fish in Bor city, South Sudan. One of the photos was taken in front of the fisherman’s home whereas his catch of “weer”, Gymnarchus niloticus is offered for sale whereas the second photo shows a small pile of “Nauk”, Heterotis niloticus …
Permanent link to this article: https://fishconsult.org/?p=4250
Jul 06 2012
Manual sexing of Nile tilapia, Oreochromis niloticus in Gabon (in French)
Credit: Charles Ibinga Maganga (Gabon) Tri et sexage manuel du Tilapia nilotica, élevage monosexe des males et femelles dans des étangs sépares; la mise en charge des males se font à raison de 2,2 poissons /m² à SIAT/Bitam; les alevins sont prélevés dans les étangs de prégrossissements tôt le matin, sont sexes et charge dans les …
Permanent link to this article: https://fishconsult.org/?p=4240
Jul 05 2012
Collection of African catfish, Clarias gariepinus in Ntem Minvoul Valley in Gabon (in French)
Credit: Charles Ibinga Maganga (Gabon) Clarias gariepinus, récoltés par les femmes dans la vallée du Ntem à Minvoul (ville rurale, au nord du Gabon). Ces silures (poissons-chats) sont péchés avec des pièges à poissons (panier conique fait à l’aide des roseaux pour les eaux peu profondes) lors des périodes de remontée d’eau, en début des …
Permanent link to this article: https://fishconsult.org/?p=4149
Jul 04 2012
Promotion of aluminum fishing boats in South Sudan
Credit: Juma Frezar (South Sudan) The photo shows a fishing boat made of aluminum. The promotion for this boat which is provided by a company that is working in the field of fishery is based on the better fishing efficiency of these boats. However, fishermen (in Bor city) do not favor these boats as they …
Permanent link to this article: https://fishconsult.org/?p=4142
Jul 04 2012
Fish smoking and drying research, University of Burundi
Credit: Alain Murekambanze (Burundi) This photo shows a gentle who is carrying out research on the smoking and drying of Lake Tanganyika sprat (Stolothrissa tanganicae). This fish species belongs to Clupediae family which is endemic to the Lake Tanganyika. This research project is managed by the Department of Water, Fisheries and Aquaculture, University of Burundi, Bujumbura. …
Permanent link to this article: https://fishconsult.org/?p=4128
Jul 04 2012
Research facilities at NaFIRRI, Kajjansi, Kampala, (Uganda)
Credit: Alain Murekambanze (Burundi) The photo shows the research ponds at the National Fischeries Resources Research Institute, NaFIRRI at Kajjansi, Kampala,Uganda. These ponds as well as a modern fish hatchery and a feed production unit have been constructed through the cooperation between Uganda and China. Note: We decided not to watermark the photos in order not …
Permanent link to this article: https://fishconsult.org/?p=4117
Permanent link to this article: https://fishconsult.org/?p=4105
Jul 03 2012
Lionfish, Pterois sp. (reproductive behavior, economic importance, ecological concerns) – Video
This video was taken at Aquarium De la Mer, Sea World,California, USA in June 2012 Reproduction behavior: Usually, a male and few females of lionfish represent a mating group. The male lionfish is highly territorial and protects the mating area. The female lionfish releases between 2,000 and 15,000 eggs (with an average of about 8,000 …
Permanent link to this article: https://fishconsult.org/?p=4090