Jul 30 2016

Fish sun-drying in Malawi

Credit: Medicine Alexander Dazilone (Malawi)

Fish sun-drying in Malawi

 

 

This picture was taken in Mangochi, Malawi close to Malawi College of fisheries. Fish sun drying is very common in Malawi and it is a preferred method when processing small sized fish like E. Sardella. Consumers like these smaller sized fish not only because of a method that was used to process them but also because small fish is relatively cheaper. This type of processing in Malawi is easy to do and it also by women.

Much of this sun dried fish is locally marketed. But a small quantity finds its way out to neighboring countries and even as far as South Africa.

 

 

Permanent link to this article: https://fishconsult.org/?p=13435

Jul 26 2016

Lift-net fishing in Bangladesh

Photo credit: World Fish Center

Review: Abdel Rahman El Gamal (Founder of the website)

Lift net fishing in Bangladesh

 

 

Lift net is a relatively large framed bag or basket-shaped net with an opening facing upward to enable vertical fishing. Lift nets are submerged into the water to the desired depth, and once the targeted fish are above the netting, the net is then lifted from the water. The small-size net is mostly hand-operated and portable. However, in larger operations, the net is lifted mechanically either from the shore (shore-operated lift net), aided by levering arrangement as shown in the photo or operated on a boat (boat-operated lift net). The catching process is sometimes supported by lights to attract fish over the net opening. Lift nets are generally used to catch small pelagic species, fish and squid. In Bangladesh, the lift net is locally called Dharma Jal or “shib jal”.

 

 

Permanent link to this article: https://fishconsult.org/?p=13430

Jul 26 2016

Culture of rainbow trout in the northern highlands of Thailand (Video)

Video credit: Parinya Sutthinon (Thailand)

Review: Parinya Sutthinon and Abdel Rahman El Gamal (Founder of the website)

Trout farm in Thailand

 

 

 

The farm shown in the video is a part of the Royal-Inthanon Project located in the mountain area in Chiangmai Province, Thailand.

The Royal Project which was founded in 1969 aimed to help the hill-tribe poor people who lived in Inthanon Mountain – or other high mountains in the north of Thailand- to become self-supporting and to develop the skills about aquaculture as a means for enhancing household nutrition and increasing income for the target people.

The concrete raceways shown belong to the farm of rainbow trout (Oncorhynchus mykiss) which is located at a height of about 1300 m above sea level whereas water temperature at such elevation is about (18-20 ˚C) which was found suitable for all-year round cool water aquaculture as required for rainbow trout from fingerling until marketable size (250-300 g). The concrete raceways measure (2.5x30x1 m deep). Raceways receive water from the waterfall at the rate of 250 l/min in the summer season and 500 l/min in the rainy season. Feed used in the project is pelleted commercial seabass feed. The shown farm can produce fresh trout, smoked trout and gold caviar (from trout).

It may worth mentioning that rainbow trout is not native to Thailand and hence fertilized eggs of rainbow trout were initially imported from Germany and Finland. The species has been chosen based on their temperature compatibility as well as their production performance and market merit.

 

 

Permanent link to this article: https://fishconsult.org/?p=13427

Jul 26 2016

Protecting of fish breeding grounds on Lake Tanganyika in Burundi (Video)

Video credit: Jean Marie Manirambona (Burundi)

Review: Jean Marie Manirambona and Abdel Rahman El Gamal (Founder of the video channel)

Lake Tanganyika (Burundi)

 

 

Burundi’s fish catch comes almost entirely from the share of Burundi in Lake Tanganyika whose waters are shared by the Democratic Republic of Congo, Tanzania and Zambia. The lake is the second largest lake in Africa, and also the second deepest lake in the world with a mean depth of 570 m, reaching around 1,500 meters in the south. Moreover, Lake Tanganyika is considered a wildlife treasure for its unique and indigenous aquatic species of fish, snails, crabs, shrimps, sponges, and many other organisms.

The fisheries adjacent to human settlements are associated with high population densities, and are under heavy fishing pressure from a range of fishing gears. There are indications not only of reduced catches, but also on changes in catch composition. According to available statistics, the fish catch from Lake Tanganyika in Burundi has declined from about 17,000 tons in 2000 to 12,000 tons in 2011.

With the aim to restore the lake sustainable catch, the Ministry of Agriculture and Livestock through its Department of Water of Fishing and Aquaculture has initiated a project in 2012 to protect the breeding grounds of the fish in Lake Tanganyika. The video focuses on the protection of fish breeding grounds on Lake Tanganyika in Burundi.

 

 

Permanent link to this article: https://fishconsult.org/?p=13424

Jul 25 2016

Desert recirculating farming system of Nile tilapia in integration with agriculture in Egypt – Video

Video credit: Ismael Radwan (Egypt)

Review: Abdel Rahman El Gamal (Founder of the video channel)

Desert recirculating tilapia farming in Egypt

 

This one-greenhouse farm is located in Nubaria (Egypt).  The size of the greenhouse tank is 8×30 meters with a depth of 60 cm making a volume of about 200 m3 of water.  The tank is furnished with a harvest ditch (canal) with a 2-m width and 70-cm depth. The farm receiver its water from a well of about 20-m depth with a temperature that ranges around 22 C enabling the all-year round grow-out of tilapia. As shown in the video, the venturi aeration system is in place.

The all-male fingerlings of Nile tilapia (Oreochromis niloticus) with 3-5 g average size are stocked at a rate of 400-500 fish/m3 depending on the target harvest size which ranges from 250-500 g/piece.  Commercially manufactured floating pellets of 32% protein are used through-out the year.

The partial harvest for the target size is performed using the proper net and done in the harvest canal after lowering the water as shown in the video. In order to keep the tank productivity all-year round, tilapia fingerlings with the same number of harvested fish are stocked and so on.

The annexed biological filter (made of plastic tubing) when supplemented with adequate water renewal has been found sufficient for maintain the water quality at the proper levels.  Water renewal is mainly done to allow water for agricultural crops which are primarily wheat, peanut, and green beans.

In regard to the production parameters in this 200-m3 system, about 8 tons of market size fish have been produced/year with a feed conversion ratio of 1.3 : 1.

 

 

Permanent link to this article: https://fishconsult.org/?p=13420

Jul 20 2016

Harvesting of black carp in Vietnam (Video)

Harvest of black carp in Vietnam

 

 

 

 

This video is accompanied with information on the introduction and culture of black carp in Vietnam especially in the northern provinces. The key elements in the farming and consumption of black carp has been adequately addressed.

Permanent link to this article: https://fishconsult.org/?p=13417

Jul 19 2016

Fish Culture Development – Africa (2016) training course

EICA JICA 2016 (Group picture)

 

 

The inserted photo was taken on July 18, the first technical day of the “Fish Culture Development – Africa” training course for 2016. This 3-month course is being annually organized since 2004 by the Egyptian International Center for Agriculture – EICA” and jointly supported by EICA and Japan International Cooperation Agency (JICA). The course this year hosts 13 participants from 7 African countries and a Jordanian participant. The photo shows Dr. Abdel Rahman El Gamal and the course participants:

Manirambona Jean – Marie (Burundi), Ngatcham Djouani Marcelin (Cameroon), Mayitu Katambay Narcisse and Kafumbe Mubindu Bienvenu (Democratic Republic of the Congo), Yaa Agyapomaa Danso and Eleanor Naa Ayele Aryee (Ghana), Ahmed Al Alwan (Jordan), Charles Bernard Makuya, Dazilone Medicine Alexander, and Chimwemwe Tembo (Malawi), Atif Ali Mohamed El Hassan and Maha Abdeen Mohammed El Sadig (Sudan) and  Agosseme Kodgo and Tairou Abdoul Aziz (Togo).

Permanent link to this article: https://fishconsult.org/?p=13415

Jul 19 2016

Development and outlook of Egyptian aquaculture (updated 2016 version)

This presentation has been delivered in the “Fish Culture Development training course” hosted by The Egyptian International Center for Agriculture (EICA). The presentation updates and analizes the developing mode of Egyptian aquaculture based on the latest statistics on 2014. The African as well as the global perspective are addressed in this presentation. Aquaculture systems, fish trade, processing, fish feed and more of related topics are covered. The governing regulations related to land and water use have been addressed. The presentation is supported by Tables, charts and images.

http://fishconsult.org/wp-content/uploads/2016/07/Development-and-outlook-of-Egyptian-aquaculture-Updated-2016-version.pdf

Permanent link to this article: https://fishconsult.org/?p=13408

Jun 30 2016

Culture of red tilapia in the canton Pedro Vicente Maldonado (Ecuador)

Photo credit: Diego Mauricio Carrillo Freire (Ecuador)

Review: Diego Mauricio Carrillo Freire and Abdel Rahman El Gamal (Founder of the website)

 

Culture of red tilapia in Ecuador

The overall features of the canton Pedro Vicente Maldonado (600 m above sea level) area are encouraging to the development of agriculture, aquaculture as well as attracting to tourism.

Like many parts of Ecuador, the tilapia-farming has developed rapidly due to the need for species diversification after the crisis in the shrimp industry caused by the spread of the Taura Syndrome Virus (TSV), and intensified after the white spot virus (WSSV) outbreak during 1990s. The introduction of tilapia in Ecuador aquaculture led to strengthening the export of tilapia in the export market especially to USA. Moreover, tilapia culture took the advantage of shrimp ponds which were abandoned after the appearance of TSV and WSSV.

The “Pedro Vicente Maldonado Canton” region has waterfalls and rivers which are ideal for ecotourism, with adventure sports like rafting and kayaking. Having red tilapia culture in this region provides visitors the opportunity to taste delicious red tilapia which was introduced to Ecuador in 1993.

 

 

Permanent link to this article: https://fishconsult.org/?p=13400

Jun 29 2016

Fish drying and marketing in Cox Bazar (Bangladesh)

Photo credit: ICSF (Samudra – Volume 48)

Review: Abdel Rahman El Gamal (Founder of the website)

Tuna drying in Bangladesh

 

 

The inserted photo has been captioned “Tuna being dried in Cox’s Bazaar, Bangladesh”.

Dried fish is the low-cost dietary protein source in Bangladesh as it provides livelihoods and incomes for large number of people. Moreover, dried fish is easily transportable, marketable and storable. In addition to the importance of dried fish for local consumption, considerable quantity is being exported.

Drying of marine fish is very common in the entire coastal areas of Bangladesh whereas Cox Bazar is one of the main supply areas of dried fish.  The main marine or freshwater species which are used for drying are ribbon fish, Bombay duck, anchovies and shrimp, with other quantities of puti, poma, pomfret, and sting ray; this in in addition to dried tuna as shown hanged to a rack in the inserted photo. Fish are sun-dried on racks and frames or mats lay on the ground. In general, fish drying in coastal belt starts in October and ends in March.

Exported dried fish goes to several countries including Singapore, Hong Kong, Malaysia, United Kingdom, United States of America, United Arab Emirates etc. There could be specific demands on particular dried products such as the jewfish which is caught by the long-lines in the Cox Bazar are dried to be exported mostly to Hong Kong as salted dried product.

 

 

 

 

Permanent link to this article: https://fishconsult.org/?p=13395

Load more