Cover image: Jenny Waddell/National Oceanic and Atmospheric Administration

Cover description: Several species of algae at the Olympic Coast National Marine Sanctuary.

中文翻译：

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发行信息

封面图片：詹妮·瓦德尔（Jenny Waddell）/国家海洋与大气管理局

封面描述：奥林匹克海岸国家海洋保护区的几种藻类。