Fish Consulting Group

Skyward vision in flatfish (Video)

Video credit: Patricia Martin Cabrera
Review: Abdel Rahman El Gamal (Founder of the video channel)

Flatfish are characterized by their asymmetrical body shape with both eyes lying on the same side of the head in the adult fish. It may be of interest to know that fishes in this group begin their lives as normal swimming fish with eyes located on both sides like all other fish. The video link is here:

https://youtu.be/zJ8DYV1JIug

Through its development and as the flatfish begin to change and start moving to the seafloor where they spend the rest of their lives, one of the animal’s eyes migrates to the other side ending by having both eyes located on one side of their heads. This could be on the left side or the right one. The flatfishes include flounders, soles, turbot, plaice, and halibut.

Machinery use in the construction of Egyptian fish ponds (Video)

Video credit: Herman Hennig (Argentina)
Review: Abdel Rahman El Gamal (Founder of the video channel)

This video was filmed in 2015 during the construction of a fish farm in Egypt.

Typically, fish ponds in Egypt are constructed using different types of machinery that are required for excavation, compacting, levelling and d**e construction; bulldozers, rollers, tractors and may be others are used.

The average size of fish farms and so fish ponds justify the use of machinery in the construction and maintenance of fish farms. In fact, the gained experience over years encouraged the establishment of private enterprises capable to carry out the construction of fish ponds.

In line with that and according to the official statistics by GAFRD, the land-based fish farms cover around 127,000 ha in 2017. This includes the governmental, private owned, private leased, and temporarily fish farms.

Shrimp culture in Guatemala - Video

Video credit: Alejandro Joachin (Guatemala)
Review: Alejandro Joachin and Abdel Rahman El Gamal (Founder of the video channel)

The inserted video was filmed in a shrimp farm in Aldea El cebollito, Monterrico (Guatemala). The farm consists of three ponds of 1-ha each. The white leg shrimp Litopenaues vanammei is the species farmed in the farm.

The video link in below:

https://youtu.be/WaI749jfOn4

The stocking density in this project is 250 shrimp PL/m3. As shown in the video, the shrimp ponds are furnished by paddle wheel aerators sufficient to maintain optimum dissolved oxygen throughout the growing season. The salinity of the farm water is 15 gram/liter.

As the temperature in the region throughout the year suits the growth of this species of shrimp, four production cycles are practiced every year of a 12-week each. The biggest shrimp harvest is targeted in the month of April (Eastern week) whereas the maximum demand on shrimp occurs and so the highest market value. The average size of harvested shrimp is about 14 g.

According to FAO statistics, the total production of shrimp from aquaculture in Guatemala amounted 17,273 tons in 2018.

Promoting aquaculture in Namibia - Video

Video credit: Kaulo Salushando (Namibia)
Description: Kaulo Salushando and Abdel Rahman El Gamal (Founder of the video channel)

This video was filmed during an official harvesting that took place in Fonteintjie fish farm which is a governmental farm. The harvest was covered by media and attended by the minister and top officials as well as invitees from the community including a number of school children who witnessed the harvest. The event targeted to promote aquaculture especially in the southern part of Namibia. The video link is below:
https://youtu.be/z0rEOjtWBz8
We can see that tilapia is the main species cultured in the farm along with some common carp.
The national strategy strongly advocates for aquaculture in that it empowers people, provides employment opportunities and provides food security for communities.
It may worth noting that aquaculture in Namibia still in its infancy stage as according to FAO statistics, aquaculture in Namibia amounted 647, 626, 605, 587 and 472 tons during the years from 2014 to 2018 respectively.