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Climate change adds more uncertainty. Modelling predicts the Pacific stocks of skipjack and yellowfin tuna will move eastwards as the globe warms—out of the jurisdictions of some Pacific nations. And all the southern bluefin in the world breed in one location south of Indonesia, gathering to release their sperm and eggs at once. If something goes wrong—the waters get too warm, or too many adults are taken from the population for there to be the necessary critical mass to trigger spawning—breeding could fail to happen at all.
Shot on assignment for New Zealand Geographic Issue: 170 July August 2021.
Read the Feature: https://www.nzgeo.com/stories/billion-dollar-fish/
Photograph Richard Robinson © 2021.
Rights managed image. No Reproduction without prior written permission.
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Richard Robinson © 2021. No Reproduction without prior written permission.
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TUNA
Climate change adds more uncertainty. Modelling predicts the Pacific stocks of skipjack and yellowfin tuna will move eastwards as the globe warms—out of the jurisdictions of some Pacific nations. And all the southern bluefin in the world breed in one location south of Indonesia, gathering to release their sperm and eggs at once. If something goes wrong—the waters get too warm, or too many adults are taken from the population for there to be the necessary critical mass to trigger spawning—breeding could fail to happen at all.<br /> Shot on assignment for New Zealand Geographic Issue: 170 July August 2021.<br /> Read the Feature: https://www.nzgeo.com/stories/billion-dollar-fish/<br /> Photograph Richard Robinson © 2021.<br /> Rights managed image. No Reproduction without prior written permission.