Japanese researcher using mackerel surrogates to spawn bluefin tuna
SEAFOODNEWS.COM [Associated Press] By Elaine Kurtenbach - November 21, 2014 -
TATEYAMA, Japan, Marine scientist Goro Yamazaki, who is known in his seaside community as “Young Mr. Fish,” is working to ensure the bluefin tuna species survives.
Yamazaki is fine-tuning a technology to use mackerel surrogates to spawn the bluefin, a process he hopes will enable fisheries to raise the huge, torpedo-shaped fish more quickly and at lower cost than conventional aquaculture.
Yamazaki’s technique involves extracting reproductive stem cells from the discarded guts of tuna shipped by cold delivery from fish farms and inserting them into mackerel fry so tiny they are barely visible.
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