Rhodolith Beds Along the Southwest Atlantic Ocean: From Shallow to Mesophotic Habitats. Review of a Singular Ecosystem

IF 2.5 3区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Aquatic Conservation-Marine and Freshwater Ecosystems Pub Date : 2024-09-20 DOI:10.1002/aqc.4252
Maria Patricia Curbelo-Fernandez, Yocie Yoneshigue-Valentin, Jean Louis Valentin, Helena Passeri Lavrado
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Abstract

Rhodolith beds are one of the major marine coastal ecosystems. Knowing the spatial distribution, environmental characteristics and composition is not only scientifically pertinent but also crucial to allow comparisons in case of changes due to local and global anthropogenic pressures. With slow algal growth rates, high associated diversity and potential importance as nursery grounds, rhodolith beds are present along the Brazilian coast of the Southwest Atlantic Ocean. This study provides an updated map of shallow and mesophotic rhodolith distribution after a systematic literature review. The prevailing oceanographic conditions along most parts of the Brazilian coast render the environment suitable for the developing rhodolith beds (a total of 68 taxa in this review), with 63 taxa along the East Brazilian Shelf, seven taxa for the North Brazilian Shelf and 10 taxa in the South Brazilian Shelf. According to composition, shallow and mesophotic communities were more similar in each large marine ecosystem than among them. In addition to gaps in terms of distribution, there are uncertainties about the taxonomic composition of the rhodoliths, associated fauna and flora and oceanographic and geological characteristics of the bottoms, which call attention to the importance of further studies, mainly in the mesophotic. This review provides a more precise distribution of these habitats along the Brazilian coast of the Southwest Atlantic Ocean. It contributes to a more detailed taxonomic composition of calcareous algae in an extremely relevant marine ecosystem, which is crucial for many species, including the endemic kelp, Laminaria abyssalis.

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西南大西洋沿岸的岩石床:从浅海到中海栖息地。一个奇特生态系统的回顾
红岩床是主要的海洋沿岸生态系统之一。了解其空间分布、环境特征和组成不仅具有科学意义,而且对于比较当地和全球人为压力造成的变化也至关重要。由于藻类生长速度慢、相关多样性高以及作为育苗场的潜在重要性,西南大西洋巴西沿岸都有红藻床。本研究在对文献进行系统回顾后,提供了最新的浅海和中深海红石分布图。巴西沿岸大部分地区的海洋条件适合菱铁矿床的发育(本综述共有 68 个分类群),其中巴西东大陆架有 63 个分类群,巴西北大陆架有 7 个分类群,巴西南大陆架有 10 个分类群。从组成上看,每个大型海洋生态系统的浅海和中深海群落比它们之间的更为相似。除了分布方面的差距外,菱锰矿的分类组成、相关动植物群以及海底的海洋学和地质学特征也存在不确定性,因此需要进一步研究,主要是中层海洋生态系统的研究。本综述提供了西南大西洋巴西沿岸这些生境的更精确分布情况。它有助于更详细地了解钙质藻类在一个极其重要的海洋生态系统中的分类组成,该生态系统对许多物种(包括当地特有的海带--深海层藻)至关重要。
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来源期刊
Aquatic Conservation-Marine and Freshwater Ecosystems
Aquatic Conservation-Marine and Freshwater Ecosystems 环境科学-海洋与淡水生物学
CiteScore
5.50
自引率
4.20%
发文量
143
审稿时长
18-36 weeks
期刊介绍: Aquatic Conservation: Marine and Freshwater Ecosystems is an international journal dedicated to publishing original papers that relate specifically to freshwater, brackish or marine habitats and encouraging work that spans these ecosystems. This journal provides a forum in which all aspects of the conservation of aquatic biological resources can be presented and discussed, enabling greater cooperation and efficiency in solving problems in aquatic resource conservation.
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