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PaleONtOlOGY Fossil denticles reveal how ocean productivity shapes shark baselines and recovery potential Erin M. Dillon1,2*, Douglas J. McCauley2,3, Migdonio González1, Sean R. Connolly1,4, Brígida de Gracia1, Jonathan D. Cybulski1,5,6, Richard D. Norris7, María Mercedes Gómez1,8,9, Irene García- Pérez1, Nicole D. Leonard10, Jian- xin Zhao10, Kimberly García- Méndez1, Aaron O’Dea1,11* shark populations on coral reefs have declined globally, but few baselines exist to quantify natural variability before human impact. using fossil dermal denticles preserved in reef sediments, we reconstructed shark communities across the Isthmus of Panama before substantial exploitation [∼7 to 3 thousand years ago (ka)] and recently (past century). We found differences in shark baselines and responses to fishing between the oceans on either side of the Isthmus. …
摘自《科学》(Science)第393卷 第6812期 · 2026年8月13日,Unknown。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。