The video was taken in freshwater aquarium (Sea World), San Diego, California, USA Review: Abdel Rahman El Gamal (Founder of the website and video channel) Introduction and description: Silver dollar is a common name for a fish species that belongs to the Characidae family; Dollar d’argent is another common name. These fishes have metallic color with deep …
Category: English
Posts or items in English language
Permanent link to this article: https://fishconsult.org/?p=10333
Jan 31 2014
Culture of rainbow trout, Oncorhynchus mykiss in South Korea
Photo credit: Ahmad Yousef alqarain (Jordan) Description: Abdel Rahman El Gamal and Ahmad Yousef alqarain (Jordan) Rainbow trout (Oncorhynchus mykiss) was first introduced from USA into Korea in 1965, whereas its farming started in Pyeongchang due to its cold, and high quality waters …
Permanent link to this article: https://fishconsult.org/?p=10328
Jan 30 2014
Sex reversal of tilapia fry using male hormone in Benin
Credit: Ismael Radwan (Egypt) The male hormone (17 alpha- methyl testosterone) is dissolved in alcohol at the dose of 60 milligram per 500 ml of alcohol and then after the alcohol containing hormone is to be mixed with one kg of fry feed. Treated feed is dried in shade and could be stored in freezer …
Permanent link to this article: https://fishconsult.org/?p=10318
Jan 29 2014
Dissecting a specimen of an African catfish male – Video
This 2-min video demonstrates the dissecting of a specimen of African catfish, Clarias gariepinus which was completed with the identification of main organs (liver, spleen, stomach, intestine, spleen, and bladder). The testes identified in the dissected match the male morphology of the specimen. On the dissecting plate there is a tilapia specimen which was already …
Permanent link to this article: https://fishconsult.org/?p=10304
Jan 29 2014
Use of locally-made demand feeders in fish ponds in Benin – Video
Credit for the video: Ismael Radwan (Egypt) Description: Abdel Rahman El Gamal The video shows a locally made demand feeder used in an earthen pond in Benin. The feeder has a handle that allows pulling the feeder towards the pond dike for checking and filling before pushing it back to the feeding area in tilapia …
Permanent link to this article: https://fishconsult.org/?p=10300
Jan 16 2014
Seed production of Nile tilapia, Oreochromis niloticus in Senegal
Credit: Lo Oumy Seck (Senegal) The photo shows the only hatchery for Nile tilapia, Oreochromis niloticus in Senegal. This hatchery is governmental and located in Région de Saint-Louis, département de Richard-Toll. According to the most recent statistics, 880,000 tilapia fry were produced in this hatchery to meet the demand of private and governmental fish farms. It …
Permanent link to this article: https://fishconsult.org/?p=10258
Jan 10 2014
Cage farming of Nile tilapia, Oreochromis niloticus in Senegal
Credit: Lo Oumy Seck (Senegal) The photo shows a unit of cage farming in Senegal River. Cage aquaculture was first practiced at experimental level in Senegal in 1984. However, for variety of reasons, the outcomes during the early practices were not satisfactory. From the year 2000 onward, the practice witnesses some improvements as represented in …
Permanent link to this article: https://fishconsult.org/?p=10231
Jan 10 2014
Condition factor – Fulton condition factor
This 4-slide information bite addresses the background information on the condition factor that is also called Fulton condition factor. The bite introduced the environmental and biological factors which influence the K factor supported by some examples. The bite ended by an example of the K factor values for trout and salmon that correspond with different …
Permanent link to this article: https://fishconsult.org/?p=10222
Jan 04 2014
Zooplankton analysis in fish pond water – Video
The video is a part of a training program demonstrating the analysis of zooplankton in a fish pond. As shown in the video, a plankton net is used in the sampling procedures. The mesh size of the net determines the size range of the plankton trapped. A-80μm net will retain small zooplankton such as rotifers …
Permanent link to this article: https://fishconsult.org/?p=10202
Jan 03 2014
Ancient water wheels in Fayoum (Egypt) – Video
Source: www.fishconsult.org These wooden water wheels were first introduced to Fayoum by the Ptolemies engineers for lifting water between four and five meters to the irrigation channels of the agronomic projects. These water wheels move water in a very old traditional way. During those old days, certain families specialized in making these water wheels. These historic water wheels do …
Permanent link to this article: https://fishconsult.org/?p=10198