Do natural disturbances have significant effects on sandy beach macrofauna of Southeastern Brazil?

Costa, Leonardo Lopes; Machado, Phillipe Mota; Zalmon, Ilana Rosental

doi:10.3897/zoologia.36.e29814

Cited by 5 publications

(2 citation statements)

References 41 publications

(56 reference statements)

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“…Besides the physical damage to human communities, hurricane waves and surge may bring great changes to the littoral morphology accompanied by widespread impacts to coastal infaunal assemblages 3 – 5 . In contrast, studies on better understanding these ecological implications are insufficient and lag behind 6 – 9 , although critical for the proactively managed disaster resilience.…”

Section: Introductionmentioning

confidence: 99%

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

Zhang

Wang

Li³

et al. 2021

Sci Rep

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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.

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Section: Introductionmentioning

confidence: 99%

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

Zhang

Wang

Li³

et al. 2021

Sci Rep

View full text Add to dashboard Cite

show abstract

“…The increase in frequency and intensity of storm waves are consequences of global climatic changes (McCarthy et al, 2001). These extreme events, like storm surges, have a direct impact on the composition and abundance of benthic macrofauna in sandy beaches (Machado et al, 2016;Costa et al, 2019). For O. quadrata, hurricanes (Gül & Griffen, 2019a) and storm surges (Hobbs et al, 2008) affect abundance, age structure and zonation.…”

Section: Introductionmentioning

confidence: 99%