While Gelidium seaweeds can be collected by gathering fragments washed ashore, mass production of agar requires steady, large quantities.10 Harvesters in New Zealand during WWII had to “walk beside a boat, waist to armpit deep in water and feel for the weed with their feet.” Handling large volumes of wet seaweed (which yields less than five percent agar) was challenging. Then as now, when Gelidium is harvested by scuba divers from rocky seabeds, collectors have to understand the life cycle of the algae, find the most likely locations for its growth, and prevent overharvesting to safeguard future yields.
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Фото: Пелагия Тихонова / РИА Новости
在廣東工作的他，回到廣東之後，被要求到派出所登記及報到，讓他感到有點麻煩。然而，導致劉亮想要離開中國的念頭，是在中國結束疫情的「清零」政策、開始解封之後發生。