ON THE COVER: Nereocystis luetkeana, seen here in Port Renfrew, British Columbia, is a canopy‐forming kelp that is common in the nearshore waters of the Northeast Pacific. It exhibits pronounced morphological plasticity across hydrodynamic gradients that allows it to minimize drag experienced in flow while maximizing light interception. Photo credit: L. Coleman

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封面：在不列颠哥伦比亚省伦弗鲁港看到的Nereocystis luetkeana是形成冠层的海带，常见于东北太平洋近海。它在整个流体动力学梯度上均表现出明显的形态可塑性，从而使其在流动中遇到的阻力最小化，同时最大限度地提高了光线的拦截能力。图片来源：L。Coleman