DOI: 10.1016/j.ecss.2019.106519
论文题名: Distribution of zooxanthellate zoantharians in the Canary Islands: Potential indicators of ocean warming
作者: López C. ; Moreno S. ; Brito A. ; Clemente S.
刊名: Estuarine, Coastal and Shelf Science
ISSN: 2727714
出版年: 2020
卷: 233 语种: 英语
英文关键词: Bioindicators
; Climate change
; Distribution patterns
; Palythoa spp.
; Phase-shift
; SST
Scopus关键词: archipelago
; bioindicator
; climate change
; coral reef
; global warming
; intertidal environment
; phase transition
; population distribution
; subtidal environment
; temperature gradient
; Canary Islands
; Spain
; Anthozoa
; Cnidaria
; Palythoa
; Palythoa caribaeorum
; Zoantharia
英文摘要: Global warming is driving changes in the distribution patterns of many species, leading to a general tropicalization and meridionalization of biota. In this context, populations of some marine species are in regression while others are expanding their populations. Such is the case of benthic cnidarians belonging to the order Zoantharia and suborder Brachycnemina, whose populations are able to cause phase-shifts in coral reef ecosystems. Marine assemblages in the subtropical Canary Islands region consist of a combination of both temperate and tropical species, mainly due to the east-to-west seawater temperature gradient that naturally exists throughout the archipelago. This can reach a 2 °C difference (≈23-25 °C east to west in summer months). These biogeographical features make the archipelago a unique location to research into biota reorganisation processes. The aim of this study was to establish a baseline of the distribution and abundance data of zoantharian Brachycnemina populations in the Canary Islands. To elucidate whether these species are potential bioindicators of ocean warming processes, patterns of species distribution and their relationships with the temperature gradient across the archipelago were also evaluated. Results demonstrated that intertidal and subtidal populations of Palythoa aff. clavata and P. caribaeorum, respectively, followed distribution patterns related to the temperature ranges recorded in situ by data loggers. Extensive populations were found in the western islands where seawater temperatures are warmer than the eastern islands. Since biota reorganisation usually produces loss of ecosystem functions, it is essential to establish baseline datasets of climate change indicators and also effective monitoring programmes. These will allow early detection of phase-shifts before they lead to significant changes in ecosystem dynamics. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159360
Appears in Collections: 气候变化与战略
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作者单位: Departamento de Biología Animal, Edafología y Geología. Facultad de Ciencias, Universidad de La Laguna, Canary Islands, La Laguna, 38206, Spain
Recommended Citation:
López C.,Moreno S.,Brito A.,et al. Distribution of zooxanthellate zoantharians in the Canary Islands: Potential indicators of ocean warming[J]. Estuarine, Coastal and Shelf Science,2020-01-01,233