Vulnerability assessment of nearshore clam habitat subject to storm waves and surge

Abstract Present work studied the lesion mechanism of coastal clam and its vulnerability assessment subject to the hydrodynamic disturbance of extreme storm events. A clam habitat at the northeast coast of China was chosen for the demonstration study. Relocation failure after passive transport due t...

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Autores principales:	Yao Zhang, Gang Wang, Qingjie Li, Wanru Huang, Xunan Liu, Chen Chen, Xiaoyong Shi, Jinhai Zheng
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/643c9cba15de4ee9952a2d497904ec68
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spelling	oai:doaj.org-article:643c9cba15de4ee9952a2d497904ec682021-12-02T15:22:58ZVulnerability assessment of nearshore clam habitat subject to storm waves and surge10.1038/s41598-020-80863-42045-2322https://doaj.org/article/643c9cba15de4ee9952a2d497904ec682021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-80863-4https://doaj.org/toc/2045-2322Abstract Present work studied the lesion mechanism of coastal clam and its vulnerability assessment subject to the hydrodynamic disturbance of extreme storm events. A clam habitat at the northeast coast of China was chosen for the demonstration study. Relocation failure after passive transport due to excessive substrate erosion or suffocation in anoxic burial under overburdening sedimentation was identified the major cause of negative biomass responses during the storm. Based on the biological propensity and physiological sensitivity of the clam, a tunable loss probability function correlating the mortality with the shell length and the seabed change was proposed. A hydrodynamic model was then adopted to compute the sediment transport and net changes in the seafloor in response to the comprehensive process of storm waves and surge. The spatial distribution of the damage states was evaluated based on the numerical results incorporating the loss probability function. The estimated damage was mainly concentrated along the wave shoaling and breaking belts parallel to the shoreline. High surge levels pushed the “damage belt” shoreward, in which case large waves were able to propagate close to the shoreline before breaking. The scientific findings are helpful to better understand the vulnerability of the clam habitat to the storm disturbance. The study result as well provides a practical methodology of the storm risk assessment for benthic communities in broader ecological and geophysical scopes. The methodology are expected to be further validated and improved by more widespread sampling on coastal ecosystem or mariculture that will withstand future storms.Yao ZhangGang WangQingjie LiWanru HuangXunan LiuChen ChenXiaoyong ShiJinhai ZhengNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yao Zhang Gang Wang Qingjie Li Wanru Huang Xunan Liu Chen Chen Xiaoyong Shi Jinhai Zheng Vulnerability assessment of nearshore clam habitat subject to storm waves and surge
description	Abstract Present work studied the lesion mechanism of coastal clam and its vulnerability assessment subject to the hydrodynamic disturbance of extreme storm events. A clam habitat at the northeast coast of China was chosen for the demonstration study. Relocation failure after passive transport due to excessive substrate erosion or suffocation in anoxic burial under overburdening sedimentation was identified the major cause of negative biomass responses during the storm. Based on the biological propensity and physiological sensitivity of the clam, a tunable loss probability function correlating the mortality with the shell length and the seabed change was proposed. A hydrodynamic model was then adopted to compute the sediment transport and net changes in the seafloor in response to the comprehensive process of storm waves and surge. The spatial distribution of the damage states was evaluated based on the numerical results incorporating the loss probability function. The estimated damage was mainly concentrated along the wave shoaling and breaking belts parallel to the shoreline. High surge levels pushed the “damage belt” shoreward, in which case large waves were able to propagate close to the shoreline before breaking. The scientific findings are helpful to better understand the vulnerability of the clam habitat to the storm disturbance. The study result as well provides a practical methodology of the storm risk assessment for benthic communities in broader ecological and geophysical scopes. The methodology are expected to be further validated and improved by more widespread sampling on coastal ecosystem or mariculture that will withstand future storms.
format	article
author	Yao Zhang Gang Wang Qingjie Li Wanru Huang Xunan Liu Chen Chen Xiaoyong Shi Jinhai Zheng
author_facet	Yao Zhang Gang Wang Qingjie Li Wanru Huang Xunan Liu Chen Chen Xiaoyong Shi Jinhai Zheng
author_sort	Yao Zhang
title	Vulnerability assessment of nearshore clam habitat subject to storm waves and surge
title_short	Vulnerability assessment of nearshore clam habitat subject to storm waves and surge
title_full	Vulnerability assessment of nearshore clam habitat subject to storm waves and surge
title_fullStr	Vulnerability assessment of nearshore clam habitat subject to storm waves and surge
title_full_unstemmed	Vulnerability assessment of nearshore clam habitat subject to storm waves and surge
title_sort	vulnerability assessment of nearshore clam habitat subject to storm waves and surge
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/643c9cba15de4ee9952a2d497904ec68
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Vulnerability assessment of nearshore clam habitat subject to storm waves and surge

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