Immediate ecological impacts of the 2011 Tohoku earthquake tsunami on intertidal flat communities.

Following the Great East Japan Earthquake in 2011, a large tsunami developed and struck the Pacific coast of eastern Japan. To assess the immediate impacts of the tsunami on coastal communities, changes in taxon composition and richness of macrobenthic animals before and after the tsunami were exami...

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Main Authors: Jotaro Urabe, Takao Suzuki, Tatsuki Nishita, Wataru Makino
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2013-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3641098?pdf=render
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author Jotaro Urabe
Takao Suzuki
Tatsuki Nishita
Wataru Makino
author_facet Jotaro Urabe
Takao Suzuki
Tatsuki Nishita
Wataru Makino
author_sort Jotaro Urabe
collection DOAJ
description Following the Great East Japan Earthquake in 2011, a large tsunami developed and struck the Pacific coast of eastern Japan. To assess the immediate impacts of the tsunami on coastal communities, changes in taxon composition and richness of macrobenthic animals before and after the tsunami were examined at nine intertidal flats in Sendai Bay and the Sanriku Ria coast. The results showed that 30-80% of taxa indigenously inhabiting intertidal flats disappeared after the tsunami. Among animal types, endobenthic and sessile epibenthic animals were more vulnerable to the tsunami than mobile epibenthic animals like shore crabs and snails. For all the intertidal flats examined, animals that were originally dwellers in lower tidal zones and not recorded before the tsunami were also found right after the tsunami, indicating that the tsunami not only took away many benthic taxa from the intertidal flats but also brought in some taxa from elsewhere. However, overall changes in taxon community composition were greater for intertidal flats that experienced larger inundation heights. These results showed that the ecological impacts of the tsunami were proportional to the physical impacts as gauged by wave height and that mobile epibenthic animals were less vulnerable to the tsunami.
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spelling doaj.art-52d789b93109418e81df1d590ce1cda92022-12-21T21:45:52ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-0185e6277910.1371/journal.pone.0062779Immediate ecological impacts of the 2011 Tohoku earthquake tsunami on intertidal flat communities.Jotaro UrabeTakao SuzukiTatsuki NishitaWataru MakinoFollowing the Great East Japan Earthquake in 2011, a large tsunami developed and struck the Pacific coast of eastern Japan. To assess the immediate impacts of the tsunami on coastal communities, changes in taxon composition and richness of macrobenthic animals before and after the tsunami were examined at nine intertidal flats in Sendai Bay and the Sanriku Ria coast. The results showed that 30-80% of taxa indigenously inhabiting intertidal flats disappeared after the tsunami. Among animal types, endobenthic and sessile epibenthic animals were more vulnerable to the tsunami than mobile epibenthic animals like shore crabs and snails. For all the intertidal flats examined, animals that were originally dwellers in lower tidal zones and not recorded before the tsunami were also found right after the tsunami, indicating that the tsunami not only took away many benthic taxa from the intertidal flats but also brought in some taxa from elsewhere. However, overall changes in taxon community composition were greater for intertidal flats that experienced larger inundation heights. These results showed that the ecological impacts of the tsunami were proportional to the physical impacts as gauged by wave height and that mobile epibenthic animals were less vulnerable to the tsunami.http://europepmc.org/articles/PMC3641098?pdf=render
spellingShingle Jotaro Urabe
Takao Suzuki
Tatsuki Nishita
Wataru Makino
Immediate ecological impacts of the 2011 Tohoku earthquake tsunami on intertidal flat communities.
PLoS ONE
title Immediate ecological impacts of the 2011 Tohoku earthquake tsunami on intertidal flat communities.
title_full Immediate ecological impacts of the 2011 Tohoku earthquake tsunami on intertidal flat communities.
title_fullStr Immediate ecological impacts of the 2011 Tohoku earthquake tsunami on intertidal flat communities.
title_full_unstemmed Immediate ecological impacts of the 2011 Tohoku earthquake tsunami on intertidal flat communities.
title_short Immediate ecological impacts of the 2011 Tohoku earthquake tsunami on intertidal flat communities.
title_sort immediate ecological impacts of the 2011 tohoku earthquake tsunami on intertidal flat communities
url http://europepmc.org/articles/PMC3641098?pdf=render
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