Scientists are applying a sperm-freezing technique to help with the conservation of endangered fishes, says Bangladesh's Daily Star.
Bangladesh Agricultural University (BAU) is using cryopreservation to freeze sperm from fish at -196°C so that the sperm can be stored in a gene bank and used later.
Dr Rafiqul Islam Sarder, Associate Professor and Head of Fisheries Biology and Genetics at BAU, told The Daily Star that 56 of Bangladesh's 266 fish species were on the verge of extinction and ran a workshop for fish farmers to show them how to apply the principals to their work.