气候变化领域集成服务门户(CCPortal): Ocean acidification alters fish-jellyfish symbiosis

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.869633
	Ocean acidification alters fish-jellyfish symbiosis
	Nagelkerken; Ivan; Pitt; Kylie A; Rutte; Melchior D; Geertsma; Robbert C
发布日期	2016-12-20
数据集类型	dataset
英文关键词	Animalia ; Argyrosomus japonicus ; Behaviour ; Chordata ; Cnidaria ; Coast and continental shelf ; Containers and aquaria (20- 1000 L or &lt ; 1 m**2) ; Laboratory experiment ; Lates calcarifer ; Nekton ; Pelagos ; South Pacific ; Species interaction ; Temperate ; Trachurus novaezelandiae
英文简介	Symbiotic relationships are common in nature, and are important for individual fitness and sustaining species populations. Global change is rapidly altering environmental conditions, but, with the exception of coral?microalgae interactions, we know little of how this will affect symbiotic relationships. We here test how the effects of ocean acidification, from rising anthropogenic CO2 emissions, may alter symbiotic interactions between juvenile fish and their jellyfish hosts. Fishes treated with elevated seawater CO2 concentrations, as forecast for the end of the century on a business-as-usual greenhouse gas emission scenario, were negatively affected in their behaviour. The total time that fish (yellowtail scad) spent close to their jellyfish host in a choice arena where they could see and smell their host was approximately three times shorter under future compared with ambient CO2 conditions. Likewise, the mean number of attempts to associate with jellyfish was almost three times lower in CO2-treated compared with control fish, while only 63% (high CO2) versus 86% (control) of all individuals tested initiated an association at all. By contrast, none of three fish species tested were attracted solely to jellyfish olfactory cues under present-day CO2 conditions, suggesting that the altered fish?jellyfish association is not driven by negative effects of ocean acidification on olfaction. Because shelter is not widely available in the open water column and larvae of many (and often commercially important) pelagic species associate with jellyfish for protection against predators, modification of the fish?jellyfish symbiosis might lead to higher mortality and alter species population dynamics, and potentially have flow-on effects for their fisheries.
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/216686
推荐引用方式 GB/T 7714	Nagelkerken,Ivan,Pitt,et al. Ocean acidification alters fish-jellyfish symbiosis.2016-12-20.https://doi.org/10.1594/PANGAEA.869633.