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Category: Aquaculture

This collection of photos includes various farmed species of fin-fish, shell fish, seaweed and others as well as the farming practices carried out in many countries in the world

Ovulation in koi carp – Video

Video credit: Mohamed Atta (Egypt)  –  Review: Abdel Rahman El Gamal (Founder of the video channel) This video has been filmed in a koi hatchery in Vietnam. The focus of this short video is to share how the ovulation looks like in Koi carp which will be almost the same in most fish species. It …

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Permanent link to this article: http://fishconsult.org/?p=15162

Risk of excessive crowding of fish fry

Review: Abdel Rahman El Gamal (Founder of the website) The inserted picture shows an excessive crowding of tilapia fry. The crowding condition is not unique and is commonly witnessed in hatcheries and done for easy scooping and bagging. It is commonly believed that because of the short crowding period, no harm to handled fish is …

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Permanent link to this article: http://fishconsult.org/?p=15160

Tilapia zillii – unwanted in fish ponds but highly demanded in markets in Egypt

Photo credit: Suzan Alfred and Mekki Zakaria (Sudan) – Review: Abdel Rahman El Gamal (Founder of the website) The inserted picture shows a batch of fish ready for the market. The traditional basket has mainly two fish groups; soles and green tilapia (Tilapia zillii). Whether caught from natural resources such as lakes (like the attached …

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Permanent link to this article: http://fishconsult.org/?p=15153

Adipose eyelids and their functions in fish

Photo credit: Marx Perfecto C. Garcia (Philippines) Review: Abdel Rahman El Gamal (Founder the website) The inserted photo shows the eyelid in a mullet specimen (Mugil sp.). There are several theories related to the possible roles of eyelids in fishes. It is generally accepted that the eyelids may play a role in affecting the vision …

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Permanent link to this article: http://fishconsult.org/?p=15150

Bamboo fish graders in China

Photo credit: Marx Perfecto C. Garcia (Philippines)  Description: Abdel Rahman El Gamal (Founder of the website) The inserted picture was taken in an aquaculture facility in China and shows several sizes of bamboo graders. The use of bamboos in aquaculture goes back to about a century when bamboo cages were used in Indonesia. In countries …

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Permanent link to this article: http://fishconsult.org/?p=15147

Removing the premaxilla of tilapia males

Review: Abdel Rahman El Gamal (Founder of the website) The removal of the premaxilla of bone of the upper lip of tilapia males goes back to the late 1970s. The purpose of such practice is to reduce the aggressive behavior of tilapia males and hence reduce the possible injuries and/or mortality of females during the …

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Permanent link to this article: http://fishconsult.org/?p=15144

Natural spawning of tilapia in Madagascar using a simple practice

Photo credit: Marcel Jean Adavelo (Madagascar) – Review: Marcel Jean Adavelo and Abdel Rahman El Gamal (Founder of the website) As shown in the attached picture, the spawning tilapia pond is separated by a net with appropriate mesh size that retains the broodstock in a part of the pond while allows the produced fry and …

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Permanent link to this article: http://fishconsult.org/?p=15126

Intensive tank culture of tilapia in Egypt (Video)

Video credit: Fares Fares Arab (Egypt) and Marx Perfecto C. Garcia (Philippines) -Information source: Fares Fares Arab Description: Abdel Rahman El Gamal (Founder of the video channel) This video was filmed in an intensive fish farm located in Ismailia region, Egypt. The greenhouse has a dimension of 54×60 meters and hosts 42 grow-out circular tanks with …

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Permanent link to this article: http://fishconsult.org/?p=15120

Use of gonad color in abalone sexing

The inserted pictures belong to Omani abalone, Haliotis mariae. In the absence of external signs of sexual dimorphism for the shell structure, the sexing of abalone cannot be done based on the external differentiation and is only determined through the visual inspection of gonads which could be seen if the foot and mantle are forced …

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Permanent link to this article: http://fishconsult.org/?p=15107

Development and outlook of Egyptian aquaculture (2019 updated version)

This lecture was delivered in aquaculture development training course hosted by the Egyptian International Centre for Agriculture (EICA). This updated lecture presents not only statistics of 2017 but emerging practices such as biosecurity system as well as specific issues has been highlighted in this lecture such as the problems facing the shrimp aquaculture. The contribution …

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Permanent link to this article: http://fishconsult.org/?p=14902

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