气候变化领域集成服务门户(CCPortal): Repeated Hyposalinity Pulses Immediately and Persistently Impair the Sea Urchin Adhesive System

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DOI	10.1093/icb/icae003
	Repeated Hyposalinity Pulses Immediately and Persistently Impair the Sea Urchin Adhesive System
	Garner, Austin M.; Moura, Andrew J.; Narvaez, Carla A.; Stark, Alyssa Y.; Russell, Michael P.
发表日期	2024
ISSN	1540-7063
EISSN	1557-7023
英文摘要	Climate change will increase the frequency and intensity of extreme climatic events (e.g., storms) that result in repeated pulses of hyposalinity in nearshore ecosystems. Sea urchins inhabit these ecosystems and are stenohaline (restricted to salinity levels similar to 32 parts per thousand), thus are particularly susceptible to hyposalinity events. As key benthic omnivores, sea urchins use hydrostatic adhesive tube feet for numerous functions, including attachment to and locomotion on the substratum as they graze for food. Hyposalinity severely impacts sea urchin locomotor and adhesive performance but several ecologically relevant and climate change-related questions remain. First, do sea urchin locomotion and adhesion acclimate to repeated pulses of hyposalinity? Second, how do tube feet respond to tensile forces during single and repeated hyposalinity events? Third, do the negative effects of hyposalinity exposure persist following a return to normal salinity levels? To answer these questions, we repeatedly exposed green sea urchins (Strongylocentrotus droebachiensis) to pulses of three different salinities (control: 32 parts per thousand, moderate hyposalinity: 22 parts per thousand, severe hyposalinity: 16 parts per thousand) over the course of two months and measured locomotor performance, adhesive performance, and tube foot tensile behavior. We also measured these parameters 20 h after sea urchins returned to normal salinity levels. We found no evidence that tube feet performance and properties acclimate to repeated pulses of hyposalinity, at least over the timescale examined in this study. In contrast, hyposalinity has severe consequences on locomotion, adhesion, and tube foot tensile behavior, and these impacts are not limited to the hyposalinity exposure. Our results suggest both moderate and severe hyposalinity events have the potential to increase sea urchin dislodgment and reduce movement, which may impact sea urchin distribution and their role in marine communities.
语种	英语
WOS研究方向	Zoology
WOS类目	Zoology
WOS记录号	WOS:001180713700001
来源期刊	INTEGRATIVE AND COMPARATIVE BIOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/289520
作者单位	Villanova University; Syracuse University; Syracuse University; University of Washington; Rhode Island College
推荐引用方式 GB/T 7714	Garner, Austin M.,Moura, Andrew J.,Narvaez, Carla A.,et al. Repeated Hyposalinity Pulses Immediately and Persistently Impair the Sea Urchin Adhesive System[J],2024.
APA	Garner, Austin M.,Moura, Andrew J.,Narvaez, Carla A.,Stark, Alyssa Y.,&Russell, Michael P..(2024).Repeated Hyposalinity Pulses Immediately and Persistently Impair the Sea Urchin Adhesive System.INTEGRATIVE AND COMPARATIVE BIOLOGY.
MLA	Garner, Austin M.,et al."Repeated Hyposalinity Pulses Immediately and Persistently Impair the Sea Urchin Adhesive System".INTEGRATIVE AND COMPARATIVE BIOLOGY (2024).