Centro de Investigaciones Biológicas del Noroeste (CIBNOR), La Paz, Baja California Sur, Mexico.
Departamento de Zoologia, Universidade de São Paulo, São Paulo, São Paulo, Brazil.
PeerJ. 2023 May 30;11:e15423. doi: 10.7717/peerj.15423. eCollection 2023.
The brown alga provides a natural substrate occupied by hydrozoans in shallow marine waters. A global count in 2007 listed 39 epibiotic species of Hydrozoa growing on , but more studies have been published since, therefore, an update is timely, particularly due to the increased abundance of in the Caribbean. This review, based on a recent literature survey and new records from Mexico, includes 133 publications of epibiotic hydrozoans on spanning 220 years, from 1802 to 2022. A total of 131 hydrozoan species were recorded on 26 species of , most belonging to the subclass Hydroidolina (130), with only one record of a trachyline medusa (, subclass Trachylinae). Most publications centered on the Tropical Atlantic, where the greatest number of hydrozoan species (67 species) were recorded. All hydrozoan species possess a hydrorhiza, except one hydromedusae species that attach to via adhesive tentacles. Most of the hydrozoan species associated with exhibited a benthic life cycle (93 species) and are comprised of erect, branched colonies (67 species) and large hydrothecae (69 species). Although the number of studies of epibiotic hydrozoans on has increased since the mid-20th century, nevertheless hydrozoan richness has not reached an asymptote. Therefore, more sampling of species would likely identify more hydrozoan species associated with , especially among benthic , and might help reveal potential biogeographical and ecological patterns between and hydrozoan epibionts.
褐藻为水螅类动物提供了天然基质，它们生存在浅海水中。2007 年的全球统计列出了 39 种水螅类动物附着在褐藻上，此后发表的研究更多，因此及时更新是必要的，特别是由于加勒比地区褐藻的数量增加。本综述基于最近的文献调查和墨西哥的新记录，包括 133 篇关于褐藻上附着水螅类动物的出版物，跨越 220 年，从 1802 年到 2022 年。共有 131 种水螅类动物记录在 26 种褐藻上，其中大多数属于水螅亚纲（130 种），只有一种属于管水母亚纲的管水母目水螅（Trachylinae）。大多数出版物集中在热带大西洋，在那里记录了最多的水螅类动物物种（67 种）。所有水螅类动物都有一个水螅根，只有一种水螅水母物种通过粘性触须附着在褐藻上。与褐藻相关的大多数水螅类动物都表现出底栖的生活周期（93 种），由直立、分枝的群体（67 种）和大型水螅体（69 种）组成。尽管自 20 世纪中叶以来，对褐藻上附着水螅类动物的研究数量有所增加，但水螅类动物的丰富度尚未达到一个渐近线。因此，对褐藻物种的更多采样可能会发现更多与褐藻相关的水螅类动物，特别是在底栖褐藻中，并且可能有助于揭示褐藻和水螅类动物之间潜在的生物地理和生态模式。
