Migration of an anadromous fish to heterogeneous environment continuously enforces a selective pressure that incorporates a wide range of life-history strategies by which individuals adapt to the prevailing conditions.
As part of their current webinar series covering the UKRI aquaculture initiative consortia projects, the Aquaculture Research Collaborative Hub UK (ARCH-UK) will hold a session for the “AquaLeap project” led by Professor Ross Houston from the University of Edinburg
The WorldFish Rohu Genetic Improvement Program aims to substantially increase aquaculture productivity in Bangladesh by developing and disseminating rapidly growing rohu to farmers. Genetically improved rohu seed will be available in Bangladesh beginning in 2020. These fish are expected to grow 20%–30% more rapidly than currently available seed. WorldFish expects to further improve the rohu growth rate by an average of 5%–10% every 2 years—the age at which new genetically superior parents can be selected and spawned.
The gene of RNA viruses, encoding RNA-directed RNA polymerase (RdRp) is relatively conserved due to its crucial function in viral genome replication and transcription making it a useful target for genetic diversity study and PCR detection. In this study, we investigated the genetic diversity of 21 tilapia lake virus (TiLV) genome segment 1 sequences predictively coding for RdRp subunit P1. Those sequences were obtained from infected fish samples collected in Ecuador, Israel, Peru, and Thailand between 2011 and 2019 (nine sequences from this study and 12 sequences from GenBank).
The migration of anadromous fish in heterogenic environments unceasingly imposes a selective pressure that results in genetic variation for local adaptation. However, discrimination of anadromous fish populations by fine-scale local adaptation is challenging because of their high rate of gene flow, highly connected divergent population, and large population size. Recent advances in next-generation sequencing (NGS) have expanded the prospects of defining the weakly structured population of anadromous fish.
Hilsa: Status of Fishery and Potential for Aquaculture is a proceedings book, which is edited by an international team of experts and authored by 10 international expert teams working on different disciplines of the hilsa shad. Hilsa is a widely distributed fish within the Bay of Bengal region and harvested in the waters of Bangladesh, India and Myanmar. It is famous worldwide for its delicious taste and superb texture, which persist for a long time. Hilsa is unique in that it contains high amounts of both proteins and lipids.
The 1st Annual International Conference & Exposition of the African Chapter of the World Aquaculture Society (AFRAQ2020) will be held in Alexandria, Egypt from 28 November to 1 December 2020.
Nile tilapia (Oreochromis niloticus) is a globally significant aquaculture species rapidly gaining status as a farmed commodity. In West Africa, wild Nile tilapia genetic resources are abundant yet knowledge of fine-scale population structure and patterns of natural genetic variation are limited.
The anadromous Hilsa shad (Tenualosa ilisha) live in the Bay of Bengal and migrate to the estuaries and freshwater rivers for spawning and nursing of the juveniles. This has led to two pertinent questions: (i) do all Hilsa shad that migrate from marine to freshwater rivers come from the same population? and (ii) is there any relationship between adults and juveniles of a particular habitat? To unravel the answers of the above two questions, the present study was conducted by identifying a set of neutral and adaptive genetic markers.