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  "path": "/the-green-guardian/2026-04-23-great-white-sharks-and-tuna-face-overheating-risk-as-oceans-warm/",
  "publishedAt": "2026-04-23T17:02:29.000Z",
  "site": "https://mg.co.za",
  "tags": [
    "The Green Guardian",
    "Basking Shark",
    "Bluefin Tuna",
    "Climate Change",
    "Fisheries Management",
    "Fisheries Science",
    "great white shark",
    "Mako Shark",
    "marine biology",
    "marine ecosystems",
    "Mesotherms",
    "Ocean Warming",
    "Science journal",
    "the-green-guardian",
    "Trinity College Dublin",
    "University Of Pretoria"
  ],
  "textContent": "Great white sharks, tuna and other warm-bodied fish burn nearly four times more energy than cold-blooded species, leaving them increasingly vulnerable as rising ocean temperatures shrink their habitats, a new study has found",
  "title": "Great white sharks and tuna face overheating risk as oceans warm"
}