Tuesday, January 15, 2013

15/01/13: Tracking European eels; surrogate fish parents and more...

  • The breeding cycle of the European eels has been puzzling aquaculturists for years. No one knows how the species makes its epic journey from places as diverse as Northern Africa and Iceland to the Sargasso Sea to spawn. Furthermore, to date, no baby eels have been bred in captivity. However, the mystery of eel mating habits may be revealed thanks to satellite technology. An EU-funded research project called eeliad, used satellite tagging to keep track of 600 eels as they migrate. "We could track the satellite tags as far away as the Azores. This suggests that the eels take a different route to the Sargasso Sea than previously thought. It seems as if they’re saving energy by hitching a ride on the Azores Current,” Kim Aarestrup, senior scientist at the Technical University of Denmark tells youris.com. Read more...
  • Scientists in Japan have bred salmon using surrogate parents of a different species. The team at Tokyo University of Marine Science and Technology froze testes of the yamame salmon, extracted primordial germ cells and implanted them into sterile rainbow trout hatchlings. The trout then developed the primordial cells into functioning sperms and eggs. The technology could be put to use helping endangered species to breed. Read more...
  • The California Aquaculture Association (CAA) will be holding elections to appoint five Directors to the current Board of Directors. Nominations are now being accepted for this election and the closing date is January 21, 2013. Nominees can be self nominated or otherwise but must be a current producer, vendor or consultant level member with the California Aquaculture Association. More information...


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European eel
European eel (Photo credit: Wikipedia)

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