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The Long and Short of Fish Lifespans

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The lifespans of fish species are difficult to observe in nature.

The computational model can predict lifespan in mammals and other vertebrates, while a DNA test can determine the ages of individual fish using only a tiny piece of fin tissue.

Credit: Pexels: adiprayogo liemena

Researchers at Australia's Commonwealth Scientific and Industrial Research Organization (CSIRO) and Curtin University have created a computational model to predict any fish species' lifespan.

CSIRO's Alyssa Budd said the lifespan prediction model can be used to estimate sustainable harvests, extinction risk, and invasive potential.

The researchers expanded a model previously developed to predict vertebrate lifespans using genome sequences by adding hundreds more fish as well as fish-specific gene promoter sequences, according to Budd.

She explained, "We trained our model on fish species with known lifespans. And now we can put the genome of any fish species into the model to estimate its lifespan."

From CSIRO (Australia)
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