气候变化领域集成服务门户(CCPortal): Seawater carbonate chemistry and the behavioral response to flow of the sea urchin Paracentrotus lividus

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.912260
	Seawater carbonate chemistry and the behavioral response to flow of the sea urchin Paracentrotus lividus
	Cohen‐Rengifo; Mishal; Agüera; Antonio; Bouma; Tjeerd J; M'Zoudi; Saloua; Flammang; Patrick; Dubois; Philippe
发布日期	2020-02-20
数据集类型	dataset
英文关键词	Acid-base regulation ; Animalia ; Behaviour ; Benthic animals ; Benthos ; Bottles or small containers/Aquaria ( 20 L) ; Coast and continental shelf ; Echinodermata ; Growth/Morphology ; Laboratory experiment ; North Atlantic ; Other studied parameter or process ; Paracentrotus lividus ; Respiration ; Single species ; Temperate ; Temperature
英文简介	Ocean warming (OW) and acidification (OA) are intensively investigated as they pose major threats to marine organism. However, little effort is dedicated to another collateral climate change stressor, the increased frequency, and intensity of storm events, here referred to as intensified hydrodynamics. A 2‐month experiment was performed to identify how OW and OA (temperature: 21°C; pHT: 7.7, 7.4; control: 17°C‐pHT7.9) affect the resistance to hydrodynamics in the sea urchin Paracentrotus lividus using an integrative approach that includes physiology, biomechanics, and behavior. Biomechanics was studied under both no‐flow condition at the tube foot (TF) scale and flow condition at the individual scale. For the former, TF disk adhesive properties (attachment strength, tenacity) and TF stem mechanical properties (breaking force, extensibility, tensile strength, stiffness, toughness) were evaluated. For the latter, resistance to flow was addressed as the flow velocity at which individuals detached. Under near‐ and far‐future OW and OA, individuals fully balanced their acid‐base status, but skeletal growth was halved. TF adhesive properties were not affected by treatments. Compared to the control, mechanical properties were in general improved under pHT7.7 while in the extreme treatment (21°C‐pHT7.4) breaking force was diminished. Three behavioral strategies were implemented by sea urchins and acted together to cope with flow: improving TF attachment, streamlining, and escaping. Behavioral responses varied according to treatment and flow velocity. For instance, individuals at 21°C‐pHT7.4 increased the density of attached TF at slow flows or controlled TF detachment at fast flows to compensate for weakened TF mechanical properties. They also showed an absence of streamlining favoring an escaping behavior as they ventured in a riskier faster movement at slow flows. At faster flows, the effects of OW and OA were detrimental causing earlier dislodgment. These plastic behaviors reflect a potential scope for acclimation in the field, where this species already experiences diel temperature and pH fluctuations.
空间范围	Latitude: 48.237500 * Longitude: -4.455000
时间范围	2014-09-01T00:00:00 - 2014-09-30T00:00:00
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/215661
推荐引用方式 GB/T 7714	Cohen‐Rengifo,Mishal,Agüera,et al. Seawater carbonate chemistry and the behavioral response to flow of the sea urchin Paracentrotus lividus.2020-02-20.https://doi.org/10.1594/PANGAEA.912260.