Rhodolith occurrences in the Azores (central north Atlantic) between 1998 and 2018

Rhodoliths is a general term used to designate non-geniculate coralline red algae (Rhodophyta) that live unattached (Riosmena-Rodríguez, 2017). The term is used here to encompass (i) branched free-living coralline algae devoid of an evident nucleus, but also (ii) nucleated nodules where the biogenic calcium carbonate deposit around the core represents >50%, as well as (iii) “coated grains” where the core is larger than the algal carbonate component.

珊瑚藻结节（Rhodoliths）是用于指代营自由生活的非关节型珊瑚红藻（红藻门（Rhodophyta））的通用术语（Riosmena-Rodríguez, 2017）。本文中该术语的涵盖范围包括：（i）无明显核心的分枝状自由生活珊瑚藻；（ii）核心周围生物成因碳酸钙沉积占比＞50%的有核结节；以及（iii）核心尺寸大于藻类碳酸盐组分的包覆颗粒（coated grains）。