WorldFish initiated a selective breeding program in Abbassa--Egypt to develop and produce the genetically improved Nile tilapia strain known as “Genetically Improved Abbassa Nile tilapia (GIANT)”, adopting the same technology used for the Genetically Improved Farmed Tilapia (GIFT), in Asia. WorldFish provided the Ninth Generation (G9) broodstock of the GIANT to 11 Broodstock Multiplication Centers (BMC’s) in five governorates; these centres then disseminated improved mixed-sex fry to 160 tilapia hatcheries which supplied all-male fry to 1,500 fish farms in 2017.
The Carp Genetic Improvement Program is the only program of its kind in the world concentrating on catla and silver carp as well as being the largest familybased selection program for rohu. The methods are similar to those used to develop faster growing chickens and livestock that have transformed their respective sectors. This brief highlights the methodology of the carp genetic programs.
Worldwide, the demand for fish continues to grow rapidly. Sustainable intensification and expansion of aquaculture and innovations in fish production systems will be needed to meet this increased demand. It is with this in mind that WorldFish’s 2017–2022 strategy and the CGIAR Research Program on Fish-Agri-Food Systems (FISH) (2017– 2022) have emphasized the need for doubling total food fish production by 2030, particularly in developing countries.
Arctic char, Salvelinus alpinus L. is a promising candidate for aquaculture expansion in Northern Europe, Canada, and the United States because of its excellent growth at low temperature, tolerance to high rearing density, high fillet yield, and superior flesh texture and flavor. To support this industry, several breeding programs in these regions currently focus on selection for growth and delayed maturation. While the growth potential of existing strains has been improved, preharvest sexual maturation remains a problem in this industry.
Rohu (Labeo rohita) is a significant freshwater aquaculture species with approximately 1.8 Mt produced annually. Fin clips obtained from the founders of a newly established Bangladesh-based breeding population (~140 fish from each of the Halda, Jamuna, and Padma rivers) were used to identify 9157 SNPs and 14 411 silicoDArT markers using the Diversity Arrays Technology (DArT) genotyping-by-sequencing platform known as DArTseq. After quality control, 1985 SNPs were retained and used to examine population structure within and among river systems.
In terms of quantity produced, Catla catla is the sixth most important finfish aquaculture species produced globally in 2015. It is primarily grown in South Asia, often on a small scale in polyculture with other species. In spite of its economic importance, in a number of countries, including Bangladesh, the quality of catla seed produced in hatcheries has historically suffered from high levels of inbreeding, uncontrolled interspecific hybridisation and negative selection.
This annual report provides key results and learning achieved during 2018 in the CGIAR Research Program on Fish Agri-Food Systems (FISH). FISH made significant progress during the year in (a) producing and disseminating a suite of research innovations for sustainable development of aquaculture and fisheries across Africa, Asia and the Pacific, and (b) in moving toward stronger results-based program management through development and adoption of a monitoring, evaluation and learning platform.
The complete mitochondrial genome of Pabdah catfish, Ompok pabda (Hamilton, 1822) was determined by MiSeq platform. The genome was 16,512 bp in length, in which canonical 13 protein-coding genes, 22 tRNAs, 2 rRNAs, and a control region (D-Loop) were encoded. The overall A + T (55.10%) content was higher than G + C (44.90%). Total nine genes were located at the L strand, and remaining 28 genes were at the H strand. The start codon of 12 protein-coding genes was ATG, except for COX1 (GTG).
Presentation by Mamta Mehar, Mekkawy Wagdy, Cynthia McDougall and John Benzie at 7th Global Conference on Gender in Aquaculture & Fisheries (GAF7) held in Bangkok, Thailand on 18th October 2018
BRAQCON 2019 will provide a unique platform for people involved in brackishwater aquaculture and fisheries, nationally and internationally. Sharing of experience and research advancements in the frontier areas would facilitate maximum utilisation, cultivation, conservation and development of aquatic resources. The conference would elicit interest among young researchers and scientists to undertake studies and research to further open up new blue growth avenues for a better world.