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《科学》 第393卷 第6812期 · 2026年8月13日 · 中文解读

化石鳞片揭示海洋生产力如何塑造鲨鱼基线及恢复潜力

Oceanography shapes shark baselines and recovery potential · Unknown
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研究人员利用巴拿马地峡两侧珊瑚礁沉积物中的化石真皮鳞片,重建了鲨鱼群落的基线,发现太平洋一侧的鲨鱼丰度远高于加勒比海一侧,且加勒比海鲨鱼数量自中全新世以来下降了75%,而太平洋鲨鱼则表现出相对韧性。
原文开头
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。
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