太平洋不会在极端酸化事件后补偿生长迟缓
Mathieu Lutier1, Fabrice Pernet1, Carole Di Poi1
1Ifremer, Univ Brest, CNRS, IRD, UMR 6539, LEMAR, Argenton-en-Landunvez, France.
Biology letters
|August 15, 2023
概括
太平洋 (Crassostrea gigas) 在海洋酸化后表现出持续的增长减缓,即使有恢复期. 虽然恢复了生长,但长期的健康状况可能会受到长期暴露在低pH水平的影响.
科学领域:
- 海洋生物学 海洋生物学
- 海洋学 海洋学 海洋学
- 气候变化科学 气候变化科学
背景情况:
- 由于二氧化碳排放造成的海洋酸化对海洋化物产生影响.
- 沿海酸化事件可能超过全球预测.
- 了解恢复能力对于海洋生态系统的弹性至关重要.
研究的目的:
- 评估太平洋 (Crassostrea gigas) 从海洋酸化中恢复的能力.
- 为了评估的生长和贝的完整性在各种pH条件下.
- 为了确定恢复期是否可以弥补酸化引起的压力.
主要方法:
- 在14天内,将年幼的太平洋暴露在15pH条件 (6.47.8) 中.
- 与特定的pH水平相关的增长阻碍和腐蚀.
- 在环境pH值 (>7.8) 下42天监测. 酸化后的暴露.
主要成果:
- 的生长在pH值7.1以下减缓,在pH值6.5观察到的腐蚀.
- 即使在将恢复到环境pH值后,生长迟缓仍然存在.
- 个人权重的差异随着时间的推移而增加,表明没有补偿的增长赤字.
结论:
- 太平洋表现出弹性,并在极度酸化后恢复生长.
- 然而,持续的增长迟缓表明长期影响健康.
- 恢复能力有限,长期暴露可能无法完全补偿.
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