Taiwan Researchers Track Spanish Mackerel Ear Stones to Map Migration
Taiwan’s Fisheries Research Institute on Tuesday said it has successfully tracked Spanish mackerel migration using ear stones, as catches have declined in recent years.
Spanish mackerel is a high-value coastal species. Taiwan’s annual catches have dropped significantly, from 6.6 million kilograms in 2002 to 578,000 kilograms in 2022, according to CNA.
International studies on the species’ migratory routes remain limited. Previous domestic attempts to track Spanish mackerel with satellite tags were unsuccessful due to technical constraints...
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