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潮间鱼在持续上升的沿海地区的生理弹性

Carolina Fernández¹, María Josefina Poupin^1,2,3, Nelson A Lagos^4,5

¹Laboratorio de Bioingeniería, Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, Santiago, Chile.

Scientific reports

|September 13, 2024

概括

海洋无脊椎动物,如奇顿格拉诺索斯 (Chiton granosus),表现出适应不断变化的海洋条件的能力. 这项研究揭示了上游区的鱼具有更广泛的热耐受性,有助于在气候变化中生存.

科学领域:

海洋生物学海洋生物学
海洋学海洋学海洋学
气候变化生态学生态学

背景情况:

全球气候预测表明,由于气候变暖,中度地区的风力驱动的沿海上升势加剧.
沿海上游动力学涉及环境变化,影响海洋化生物的生理和分布.
海洋无脊椎动物经常表现出表型的可塑性,使其能够适应环境变化.

研究的目的:

为了研究潮间的软体动物Chiton granosus在不同的环境条件下的生理性能.
评估上游驱动的变异性对新陈代谢,热耐受性和化率的影响.
了解生物地理层面上对环境挑战的人口层面的反应.

主要方法:

空间研究设计比较来自塔尔卡鲁卡 (上游区) 的奇顿花种群与华斯科和洛斯莫尔斯的种群.
环境参数分析:pH,碳酸盐和度,pCO2和温度变化 (1-15天尺度).
测量生理特征:新陈代谢,热性能曲线,生物质和化速率.

主要成果:

塔尔卡鲁卡遗址的pH值较低,碳酸盐和度较低,pCO2较高,温度更为可变,低于北方/南方遗址.
塔尔卡鲁卡 (Talcaruca) 的花 (Chiton granosus) 显示出更高的生理性能变性和显著更广泛的变暖耐受性.
在三年内观察到的当地丰度模式的变化表明,人口水平适应了具有挑战性的条件.

结论:

来自Talcaruca上游区的Chiton granosus表现出广泛的耐受性范围,可能能够承受未来的上游加剧.
这种种群可能会成为东南太平洋沿岸适应性较差的种群的传播源.
在C. granosus的表型可塑性突出显示了它对动态沿海上游环境的弹性.

关键词:

丰富的丰富的丰富的化是一种化过程.碳酸盐和和的情况代谢过程中的代谢.海洋酸化是指海洋的酸化.热性能曲线的热性能曲线上游涌动 (upwelling) 是一种上游涌动.气候变暖导致的变暖

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