Author's posts
Apr 14 2012
Sex identification and spawning readiness of African catfish (Clarias gariepinus) female (Video)
Credit: Glenda Velez Calabria (Colombia) and David Ramirez (Peru); Description: Abdel Rahman El Gamal This video shows how female African catfish (Clarias gariepinus) is identified based on the reddish coloration of the genital papilla. The video also shows the examination of the sexual maturation and spawning readiness of African catfish which is usually done through …
Permanent link to this article: https://fishconsult.org/?p=3354
Apr 14 2012
Sex identification of African catfish (Clarias gariepinus) male (Video)
Credit: Glenda Velez Calabria (Colombia) and David Ramirez (Peru); Description: Abdel Rahman El Gamal This short video clearly shows the projection of the male genital papilla of African catfish (Clarias gariepinus). This video was taken during the month of November which is considered outside the natural spawning season of African catfish in Egypt.
Permanent link to this article: https://fishconsult.org/?p=3344
Permanent link to this article: https://fishconsult.org/?p=3332
Apr 08 2012
A fish farm for meat production of sturgeon hybrid in Uruguay (management)
Credit: Alejandro Perretta (Uruguay) The early stages takes place indoor under controlled conditions (incubators) as seen in one of the photos. The incubation and hatching is done for imported fertilized eggs of sturgeon hybrids within the genus Acipenser. As shown in the remaining photos, the Indoor-produced sturgeon fingerlings are moved to tanks of relatively small …
Permanent link to this article: https://fishconsult.org/?p=3321
Apr 08 2012
A fish farm for meat production of sturgeon hybrid in Uruguay (overview)
Credit: Alejandro Perretta (Uruguay) These photos belong to a sturgeon farm that is exclusively dedicated to meat production of sturgeon in Uruguay. The farm is located in Rio Nigro in Departamento de Tacuarembó province. Farm facility includes indoor and outdoor facilities. So far the complete reproduction cycle of sturgeon in Uruguay is at the research …
Permanent link to this article: https://fishconsult.org/?p=3310
Apr 07 2012
Harvest of Nile tilapia (Oreochromis niloticus) from an intensive fish farm in Egypt (Video)
Credit for the video: Samuel Simon Zigizo (South Sudan) – Description: Abdel Rahman El Gamal This short video which shows the harvest of all-male of Nile tilapia (Oreochromis niloticus) indicates the high density of fish in the culture unit (cement tanks). Fish production in this specific farm ranges from 45-50 kg/m3. Handling of harvested fish …
Permanent link to this article: https://fishconsult.org/?p=3283
Apr 07 2012
Artificial reproduction of African catfish (Clarias gariepinus) – Egg stripping (Video)
Credit for the clip: Samuel Simon Zigizo (South Sudan) – Description: Abdel Rahman El Gamal This video shows the stripping of a female of African catfish, Clarias gariepinus. This practice takes place in artificial reproduction of the species and should be followed by artificial fertilization using testes taken from a sacrificed male. We are able to see …
Permanent link to this article: https://fishconsult.org/?p=3272
Mar 30 2012
Farming of Siberian sturgeon (Acipenser baerii) for caviar production in Uruguay (Caviar obtaining)
Credit: Alejandro Perretta (Uruguay) Upon the end of raceway phase in raceways when fish are at 6 years of age, sturgeon females are slaughtered and caviar (eggs) is obtained. The photo shows female fish which are prepared before slaughtering. A female when slaughters measures about 1.5 meter in length and weighs about 8 kg. Caviar …
Permanent link to this article: https://fishconsult.org/?p=3252
Mar 29 2012
Betta ornamental fish farm in Phuket Province (Thailand)
This project proposal has been developed by a working group who participated in Fish Culture Development training course in 2009 under the supervision of Dr. Abdel Rahman El Gamal. The main focus of this project proposal is to develop an ornamental fish in Thailand. The document starts with ornamental fish keeping as a hobby and …
Permanent link to this article: https://fishconsult.org/?p=3242
Mar 26 2012
Marine aquaculture is a success story in Greece
Credit: George Triantaphyllidis, LAMANS (Greece) This paper started with the background of marine aquaculture development in Greece starting in the early 1980s whereas the first hatcheries supplied the first fingerlings for on-growing in cage farms. In this part, the linkage between the EU strategy and the development of mariculture in Greece has been highlighted. Also, the …
Permanent link to this article: https://fishconsult.org/?p=3231