Jan 30 2015
Video credit: Ana Maria Melendez (Colombia)
Review: Abdel Rahman El Gamal (Founder of the video channel and website)
This 7-min video focuses mainly on red tilapia culture in ponds and cages. A sample of pond preparation such as liming is shown in the video that also includes feeding and sampling. A quick stop at a tilapia hatchery showing the tanks and incubators is found in the video.
Permanent link to this article: https://fishconsult.org/?p=12213
Jan 30 2015
Credit: Juan Martin Canturin Garcia (Peru)
Review: Juan Martin Canturin Garcia and Abdel Rahman El Gamal (Founder of the website)
The inserted photo shows the intensive culture of rainbow trout (Oncorhynchus mykiss) in floating cages which are located in the Puno region. These cages are made of metal frames of 10 m by 10 m and 7-m deep each cage can produce about 10 MT of trout.
The growth of trout farming in this region has been promoted in part through several initiatives including the implementation of the Support Programme for Productive Competitiveness ‘Puno Competes’, among other issues. Through, “Puno Competes” about 190 cages were established in 2014. Moreover, the hatchery facility required has been delivered for the production of trout eggs and fry throughout the area surrounding Lake Titicaca. The local government has invested in this programme to purchase cages and equipment for the benefit of trout producers in the area.
Starting 2013, approximately 30,000 tons of trout are produced annually in Puno placing this region as one of the top producers nationwide. This growing production of trout highlighted the need for a transportation system for producing fish to markets outside the Puno region.
Permanent link to this article: https://fishconsult.org/?p=12275
Jan 28 2015
Source: www.fishconsult.org
Video credit: Ahmed Shaheen (Egypt)
Review: Abdel Rahman El Gamal (Founder of the website and video channel)
Viet Nam is by far the world’s largest producer of Pangasius with a production that exceeds 1.2 million tons in 2013, with annual export turnover of at least US$ 2 billion. Two Pangasius species are farmed in commercial aquaculture; Pangasius hypophthalmus (Tra) and Pangasius bocourti (Basa). Currenly, Tra is the most popular species due to a higher yield and better dressing percentage compared to Basa.
Cages being one of the systems used in Pangasius culture vary in size from 100–1500 m3 and are sited on major river tributaries of the Mekong River delta.
The density of cages in a given body of water depends on the strength of water current. The same is true in regard to the stocking density of fish that typically ranges from 100-150 specimens/m3. Early feeding practices used to depend on on-farm made feeds using variety of ingredients such as trash fish, rice bran, and broken rice, which were then cooked to produce the feed. With the scaling-up of cage farming that coped with growing safety concerns, there has been an increasing trend towards the use of commercial pellets; the video shows a feed storage. The yield is of about 100-120 kg/m3/crop is probably a realistic estimate. Usually, the entire cage is harvested at a single time to meet the large volume requirements of processing plants. There are few hundreds of industrial- scale processing plants. Most of which, are certified for export and/or ISO certified.
Permanent link to this article: https://fishconsult.org/?p=12272
Jan 27 2015
Credit: Bishnu khanal (Nepal)
The inserted photo shows some of the women of “Tharu” community during their fishing from natural water body. Traditionally, most women are involved in such activity during the rainy season. They usually use mosquito nets which they make. Most of fish caught fish is for local consumption for households and large families in Tharu whereas fish represent the principal source of animal protein. In the present and because of pollution, fish stocks are declining in natural water bodies.
Permanent link to this article: https://fishconsult.org/?p=12268
Jan 27 2015
Credit: Kanwal Odhejo (Pakistan)
There are some training organized by the Fisheries department and with collaboration of Non Governmental Organizations for the aquaculture promotion among the rural communities as well as professional fish farmers and fisheries graduates to enhance the capacity building and introduce the advance aquaculture techniques and sustainable fish farming. Those trainings are conducted and organized by the Directorate Fisheries Sindh Hatcheries & Trainings under the supervision of well trained fisheries and aquaculture officers. Courses and their duration are depended on TNA (training need assessment).Some special courses organized for the women of rural communities by keeping in view their cultural values.
Permanent link to this article: https://fishconsult.org/?p=12263
Jan 27 2015
After a short introduction of tilapia in aquaculture, this 17-min video focuses on the production of all-male tilapia through the sex reversal practices using male hormone. The logic sequence of the sex reversal process has been maintained to large extent starting by the sexual differentiation in tilapia then determining the appropriate age and/size for successful production of males whether the treated fry are produced in controlled hatcheries or collected from mass spawning facilities. The preparation of hormonal treated feed has been adequately addressed. The contradicting views on the use of 17-alpha methyltestosterone have been addressed while ending the presentation with the need to ensure the safety of the process and the role of research and fish authorities in that.
Permanent link to this article: https://fishconsult.org/?p=12261
Jan 23 2015
I am almost sure that friends whom I thank here are not going to read this post. However, I owe them all a big thank you. Even though they were somehow busy in their fish displays selling their fishery products, they were able to find the time to answer my questions. I should admit, the information obtained was very useful to me for knowing how open fish market operates and how fishermen sell their fish and a lot more.
Since one day remains in my 40-day visit to USA, I hate to leave before thanking you all for your time and apology for not knowing some names; I should have insisted to thank you by names. I feel really sorry.
Thanks to Mrs. Kathy Couta, brothers Andrea and Ken, Mr. Kawika Chetron, and Mr. Norm – They are shown in the attached pictures.
Abdel Rahman El Gamal
Permanent link to this article: https://fishconsult.org/?p=12255
Jan 23 2015
Dear Friends,
Yesterday (Wednesday, 22 January) was a long field visit which lasted 14 hours since I left Campbell where we stay to Monterey where the abalone projects exist and back to Campbell. The rich information gained through the visit would justify the lengthy hours spent. When the time comes and share the information with you, I hope this will be of value to abalone interested groups. I cannot leave this post before thanking friends who turned the abalone day productive and enjoyable. My appreciation goes to:
Mr. Trevor Fay (Monterey Abalone Company) and his staff who I interacted with; Michelle and Andrew
Mr. Peter Hain (Marine hatchery operation)
Abdel Rahman El Gamal
Permanent link to this article: https://fishconsult.org/?p=12249
Jan 23 2015
Before my departure from USA, I owe many friends in California a big word of thanks even if they do not read this message. They hosted me during the field visits to their aquaculture facilities in different locations in California. To you all: Thank You
Mr. Thomas Grim (CEO, Carlsbad Aquafarm) in San Diego area
Mr. Paul Trudeau (Aquaponic operation in Sacramento)
Mr. Erik Powell (Aquaponic operation in the region of Sacramento)
Permanent link to this article: https://fishconsult.org/?p=12244
Jan 18 2015
Credit: Rory Felix Mamani (Bolivia)
The photo shows the grilling of “Pacu” (Colossoma sp.) in Bolivia. The metal container shown in the photo allows the exposure of contained fish to the heat and in fact the smoke generated by the heat of burnt coal. The design of the metal container as well as the whole process allows equal cooking for every single fish. This product is usually juicy with soft meat and unique taste is well accepted and highly appreciated by local people.
Permanent link to this article: https://fishconsult.org/?p=12241
