Sep 13 2015

Consumption of dried fish “Kajake” in Sudan

Credit: Mai Tawfig Ahmed and Gamal Ibrahim Hamid (Sudan)

Supplemented by: Abdel Rahman El Gamal (Founder of the website)

Drying and consumption patterns of dried fish in Sudan

 

 

 

In Sudan, about 70% of fin fish is consumed fresh while 25% is consumed sun-dried leaving about 5% of total fish consumed wet salted.

The inserted picture shows dried catfish which is mostly marketed in the rain-fed and mechanized agricultural schemes in “Al Qadarif” region. This dried fish is locally named as “Kajake” which is produced in large quantities in different regions of Sudan especially along the Blue Nile.

The drying process which depends on solar energy, gravity and air currents, drives water out of processed fish and brings down the moisture content in the dried product to about 7-9%.

The high quality black Kajake is made from African catfish, Clarias spp., while other fish species are also used in the production of “Kajake” including  the mudfish (African catfish), Protopterus sp., which is locally named as “Um Koro”. Also, “Kajake” is made from other fish species such as Distichodus spp. (Kharsha), and Labeo niloticus (Dabs).

The consumption preference to “kajake” is attributed to its long shelf life as well as its relatively high nutritional value as reflected in the protein content that ranges from about 55 – 65%. Often “kajake” is consumed with dried okra.

 

 

Permanent link to this article: https://fishconsult.org/?p=12911

Sep 07 2015

Applications of genetics in aquaculture (principles – selection and hybridization – sex reversal – advanced breeding technologies) – Updated 2015

This lecture was delivered during August, 2015 in the Fish Culture Development training course- Africa that is being organized by the Egyptian International Center for Agriculture (EICA) with the support of JICA. The lecture starts with principles of genetics and breeding focusing on those related to breeding programs. Qualitative and quantitative traits are covered. The effective breeding number Ne in relation to the inbreeding and broodstock management is addressed with enough examples. Heritability has been addressed in relation to selection programs. The sex reversal whether for the production of all-male or all-female population has been covered. The use of advanced technologies such as ploidy induction, androgenesis, gynogenesis and genetic engineering are briefly covered. The lecture has also addressed the stock enhancement programs. The lecture is supported by pictures, Tables, and illustrations.

http://fishconsult.org/wp-content/uploads/2015/08/Application-of-Genetics-in-aquaculture-20151.pdf

Permanent link to this article: https://fishconsult.org/?p=12896

Sep 07 2015

Scallop ranching – Video

 

This video was filmed in deep sea water in Scotland

Video credit: Grant Campbell (Scot-Hatch Ltd, Scotland)

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

 

The scallop shown in this video is king scallop which is produced through “Scallop ranching” in Scotland. The scallop ranching has launched as a result of the significant decline in the natural stocks of scallop on the North West of Scotland. The main target of scallop ranching is to establish a sustainable and reliable source of scallops. In the existing project, the young scallops are produced in an in-house hatchery, to be grown on the seabed then harvest them by divers as they reach the market size. It is believed that diver caught scallops attract premium prices compared to dredge caught scallops. In addition, harvesting by divers causes no damage to the seabed. The video addressed main issues in the ranching process such as the selection of ranching site as well as the stocking density.

 

 

Permanent link to this article: https://fishconsult.org/?p=12894

Aug 28 2015

Seaweed culture in Kiribati Islands

Photo credit: Secretariat of the Pacific Community

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

Seaweed culture in Kiribati Islands

 

 

 

 

Two seaweed species (Eucheuma alvarezii & Eucheuma spinosum) were first introduced in Kiribati from Hawaii in 1977. Based on farming and marketing trials, only E. alvarezii was concentrated upon due to the very slow growth of E. spinosum.

The common methods for seaweed farming in the Kiribati islands are either the stake-to-stake method, or floating longlines.

Under the overall conditions in the Kiribati Islands, the harvesting of seaweed is done on the 11th week of farming and this involves a total removal of the plants from the line, transferring them to the drying platforms/racks. The inserted photo shows the harvest of seaweed by the farmers.

The main challenges facing the seaweed culture in Kiribati are algal infestation, the whitening, grazing by some fish species (e.g. rabbitfish) and the unpredictable westerly winds destroy.

However, in the light of the accumulated farming experience gained by seaweed farmers, the social acceptance towards seaweed farming as well as the secured overseas markets, it becomes obvious that the seaweed venture in Kiribati proved to be an income generating activity for the Kiribati people.

 

References:

FAO, 1989, Proceedings of the regional workshop on seaweed culture and marketing, Suva, Fiji

Secretariat of the Pacific Community, 2003, Farming Seaweed in Kiribati, A practical guide for seaweed farmers

 

 

Permanent link to this article: https://fishconsult.org/?p=12888

Aug 26 2015

Sekondi fish market in Ghana

Photo ownership: Trip down memory lane blogspot

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

Sekondi fish market (Ghana)

 

 

 

The inserted photo was taken in Sekondi which is the largest fishing town in the Secondi Takoradi Metropolitan (STMA). It is also the administrative capital of the Metropolitan. The Sekondi fish market is about 15 minutes’ walk from the center of the community.

The photo shows the scattered fish displays whereas the “Ahantas” are the majority of the people in the market. The “Ahanta” fish-mongers are selling fish which they purchase from the Sekondi fishing harbor.

Currently, most artisanal fishermen from this district prefer to land their catches at the fishing harbor in Sekondi where they are assured of spot payment.

It may worth mentioning that fishing and fish trade play an important role in the economy and livelihoods of local communities in the district.

 

 

Permanent link to this article: https://fishconsult.org/?p=12881

Aug 19 2015

Fishery resources in Balhaf (Yemen)

Photo credit: David Elliott (Mac Alister Elliott & Pts.) – UK

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

Fishery resources in Balhaf (Yemen)

 

 

 

 

Balhaf is an industrial port town that belongs to Shabwa of Yemen and located about 150 km from Al Mukalla, the capital of Hadhramaut. Balhaf’s marine exclusive zone is approximately 130 kilometers west of Mukalla and 400 kilometers east of Aden.

The coral reefs of the Balhaf area is of particular economic value through providing favorable environments for the reproduction, recruitment and growth of numerous reef fishes and hence supplying an important quantity of fishes to the local fishermen.

The hard coral skeletons provide structural relief which can enable the larvae of invertebrates and vertebrates (including fish) to settle, provide refuge for species during their life stages till adult stages, provide nursery areas for many species, and provide food and feeding habitat for many organisms, including commercially important fish.

The boat shown in the inserted picture is for pelagic fish. In that regard, as a part of its social responsibility towards fisheries sector, the Yemen Liquefied natural gas company (LNG) has established several of fish aggregation devices which was found successful in attracting pelagic fish, including Long tail and Yellow fin tuna, opening up new fishing opportunities for the local fisheries especially in the offshore region and reducing the fishing pressure on the coastal and coral associated fisheries.

 

 

Permanent link to this article: https://fishconsult.org/?p=12864

Aug 17 2015

Live fish handling (2015 version)

This lecture addresses key elements in aquaculture practices which are namely: stocking, sampling & harvesting, grading, marking, anesthesia and transportation. This updated version focused more on issues which has been found important based on feedbacks. The lecture has been delivered during the “Fish Culture Development – Africa”, August (2015).

http://fishconsult.org/wp-content/uploads/2015/08/Live-Fish-Handling-2015.pdf

Permanent link to this article: https://fishconsult.org/?p=12870

Aug 15 2015

Sea Turtle Rescue program in Italy

Photo credit: Patricia Martin Cabrera

Review: Patricia Martin Cabrera and Abdel Rahman El Gamal (Founder of the website)

Sea turtle rescue program (Italy)

 

 

 

The inserted picture was taken in the Lampedusa Turtle Rescue Center, Italy upon the release of a recovered turtle into the sea. The center cares for and rehabilitates injured turtles as well as those caught illegally before releasing them back into the sea. Most of the injuries are caused by fishing gears especially when accidentally captured with longline hooks or trawling nets. The center aids about 200 turtles annually.

The activities of the center go beyond treating and releasing injured turtles to conserving their environment and nesting sites. Turtle tagging and monitoring are among the main activities of the center; the program now monitors more than 5,000 turtles. Moreover, the conservation program includes the creation of awareness among tourists and community members in regard to the conservation of turtles. The Rescue Center relies greatly on volunteer efforts from all over the world and the partnership of several Italian universities.

 

 

Permanent link to this article: https://fishconsult.org/?p=12872

Aug 13 2015

Fish Culture Development – Africa (2015) training course

EICA JICA 2015 Group picture

 

 

The inserted photo was taken on August 3, the first technical day of the “Fish Culture Development – Africa” training course for 2015. This 3-month course is being organized by the Egyptian International Center for Agriculture – EICA” and jointly supported by EICA and Japan International Cooperation Agency (JICA). The course this year hosts 15 participants from 9 African countries. The photos show Dr. Abdel Rahman El Gamal and the course participants:

Domwa Mathieu (Cameroon), Mouori MBANI epse ELINGUI Talia Gladis (Gabon), Sangangoumou Firmin Nicaise (Gabon), Saeed Mogtari (Ghana), XEDAGBUI KWAKU FRANCIS (Ghana), Symon Ngwira (Malawi), EMMANUEL HAHIRWABASENGA (Rwanda), Eric NDAYISABA (Rwanda), Gamal Hamid (Sudan), Mai Ahmed (Sudan), Lucka Paschal (Tanzania), Erick Kiiza (Tanzania), Apetse Sena Kodzo (Togo), Zanou Dossou (Togo), and Joseph Wandira (Uganda).

Note: The photo cannot be seen as a group picture as five participants are missing for variety of reasons. In the near future an updated and completed version will be posted.

Permanent link to this article: https://fishconsult.org/?p=12862

Aug 05 2015

Development and outlook of Egyptian aquaculture (2015)

This presentation updates and analizes the developing of Egyptian aquaculture based on the latest statistics on 2013. The analysis highlights the decline in tilapia production and possible causes for that. The African as well as the global perspectives 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/2015/08/Development-and-outlook-of-Egyptian-aquaculture-mode-of-development-regional-global-perspective-–-challenges-outlook-2015.pdf

Permanent link to this article: https://fishconsult.org/?p=12855

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