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[ subject:"Biological oceanography." ]
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Living shorelines and hybrid designs...
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Sharma, Shailesh K.
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Living shorelines and hybrid designs for coastal restoration: Impacts on water quality, submerged aquatic vegetation, salt marsh flora and associated organisms.
紀錄類型:
書目-電子資源 : Monograph/item
正題名/作者:
Living shorelines and hybrid designs for coastal restoration: Impacts on water quality, submerged aquatic vegetation, salt marsh flora and associated organisms./
作者:
Sharma, Shailesh K.
出版者:
Ann Arbor : ProQuest Dissertations & Theses, : 2016,
面頁冊數:
146 p.
附註:
Source: Dissertation Abstracts International, Volume: 78-01(E), Section: B.
Contained By:
Dissertation Abstracts International78-01B(E).
標題:
Biological oceanography. -
電子資源:
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10139862
ISBN:
9781339953403
Living shorelines and hybrid designs for coastal restoration: Impacts on water quality, submerged aquatic vegetation, salt marsh flora and associated organisms.
Sharma, Shailesh K.
Living shorelines and hybrid designs for coastal restoration: Impacts on water quality, submerged aquatic vegetation, salt marsh flora and associated organisms.
- Ann Arbor : ProQuest Dissertations & Theses, 2016 - 146 p.
Source: Dissertation Abstracts International, Volume: 78-01(E), Section: B.
Thesis (Ph.D.)--University of South Alabama, 2016.
Nearshore habitats (namely, oyster reefs, seagrass meadows and saltmarshes) are highly recognized for their ecological benefits to human; however, due to a multitude of stressors these habitats are in peril. Coastal restoration is considered as the most effective way of curbing rampant habitat degradation and recovering lost benefits from degraded habitats. Hence, much effort has been directed towards coastal restoration. Despite accelerated efforts, much remains to be understood about the effectiveness of different restoration techniques on their adjacent habitats and associated fauna. My dissertation work aimed to fill in the gap and advance existing knowledge. My dissertation is composed of three experimental studies. Firstly, I studied the impacts of created subtidal reefs on neighbouring seagrass patches in the Mississippi Sound. Specifically, I studied the impacts of subtidal oyster reefs on pre-existing seagrass patches landward of the reefs. Results of this study suggest that restored subtidal reefs may aid in expansion of seagrass patches in a site-wide scale, rather than in a smaller scale enveloping only immediate areas landward of the reefs. Secondly, I evaluated the effects of shoreline dynamics on fringing marsh density for three years. In this empirical experiment, shorelines showed highly variable inter-annual lateral position. Despite the seaward advancement of shorelines in year 2, an overall net erosion was observed during the surveyed period. A general decline in Spartina alterniflora density was observed with more abrupt loss in low-elevation marshes. Further, despite the shoreline advancement in year 2, I did not detect corresponding increment in vegetation density in that period. Finally, for my third experiment, I evaluated the effectiveness of a large-scale intertidal wave attenuating units (WAUs) on expansion of emergent Spartina alterniflora vegetation, and marsh-utilizing nekton assemblage. I found that the intertidal WAU reefs were highly efficacious on expanding emergent vegetation and marsh-utilizing nekton population. Based on my results, I conclude that subtidal and intertidal reefs have qualitatively similar and positive effects on neighbouring habitats which will assist resource managers in designing effective restoration strategies in the northern Gulf of Mexico.
ISBN: 9781339953403Subjects--Topical Terms:
2122748
Biological oceanography.
Living shorelines and hybrid designs for coastal restoration: Impacts on water quality, submerged aquatic vegetation, salt marsh flora and associated organisms.
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Nearshore habitats (namely, oyster reefs, seagrass meadows and saltmarshes) are highly recognized for their ecological benefits to human; however, due to a multitude of stressors these habitats are in peril. Coastal restoration is considered as the most effective way of curbing rampant habitat degradation and recovering lost benefits from degraded habitats. Hence, much effort has been directed towards coastal restoration. Despite accelerated efforts, much remains to be understood about the effectiveness of different restoration techniques on their adjacent habitats and associated fauna. My dissertation work aimed to fill in the gap and advance existing knowledge. My dissertation is composed of three experimental studies. Firstly, I studied the impacts of created subtidal reefs on neighbouring seagrass patches in the Mississippi Sound. Specifically, I studied the impacts of subtidal oyster reefs on pre-existing seagrass patches landward of the reefs. Results of this study suggest that restored subtidal reefs may aid in expansion of seagrass patches in a site-wide scale, rather than in a smaller scale enveloping only immediate areas landward of the reefs. Secondly, I evaluated the effects of shoreline dynamics on fringing marsh density for three years. In this empirical experiment, shorelines showed highly variable inter-annual lateral position. Despite the seaward advancement of shorelines in year 2, an overall net erosion was observed during the surveyed period. A general decline in Spartina alterniflora density was observed with more abrupt loss in low-elevation marshes. Further, despite the shoreline advancement in year 2, I did not detect corresponding increment in vegetation density in that period. Finally, for my third experiment, I evaluated the effectiveness of a large-scale intertidal wave attenuating units (WAUs) on expansion of emergent Spartina alterniflora vegetation, and marsh-utilizing nekton assemblage. I found that the intertidal WAU reefs were highly efficacious on expanding emergent vegetation and marsh-utilizing nekton population. Based on my results, I conclude that subtidal and intertidal reefs have qualitatively similar and positive effects on neighbouring habitats which will assist resource managers in designing effective restoration strategies in the northern Gulf of Mexico.
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http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10139862
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