東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back to Search results for [ null ]

Switch To: Labeled | MARC Mode | ISBD

Linked to FindBook

Google Book

Amazon

博客來

Wild and Farm Eastern Oyster (Crassostrea virginica) Contributions to Improved Water Quality in the Mid-Atlantic: Contemporary and Future Climate Estimates.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Wild and Farm Eastern Oyster (Crassostrea virginica) Contributions to Improved Water Quality in the Mid-Atlantic: Contemporary and Future Climate Estimates./
Author:	Barr, Janine Meghan.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2022,
Description:	136 p.
Notes:	Source: Masters Abstracts International, Volume: 83-12.
Contained By:	Masters Abstracts International83-12.
Subject:	Water resources management. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29061263
ISBN:	9798802700310

Wild and Farm Eastern Oyster (Crassostrea virginica) Contributions to Improved Water Quality in the Mid-Atlantic: Contemporary and Future Climate Estimates.
Barr, Janine Meghan.

Wild and Farm Eastern Oyster (Crassostrea virginica) Contributions to Improved Water Quality in the Mid-Atlantic: Contemporary and Future Climate Estimates. - Ann Arbor : ProQuest Dissertations & Theses, 2022 - 136 p.

Source: Masters Abstracts International, Volume: 83-12.

Thesis (M.S.)--Rutgers The State University of New Jersey, School of Graduate Studies, 2022.

This item must not be sold to any third party vendors.

Globally it is estimated that 85% of oyster reef ecosystems have been lost over the past 130 years as a result of overharvesting, changes in freshwater inflows, alterations to shorelines, disease, and other factors. This decline has resulted in a loss of the ecosystem services oysters provide such as water quality improvements. Restoration of natural oyster reefs has been a common solution, but research suggests oyster aquaculture could be providing equivalent or greater water quality benefits than reefs. However, the scale at which oyster farms provide important ecosystem services is not adequately known. Furthermore, there is a lack of data concerning site-specific effects of changes in salinity on oyster filtration. Oysters are generally resilient to changes in salinity, but prolonged exposure to low salinity conditions have caused severe mortality events in oyster populations. Low salinity stress will likely increase with climate change as the frequency and intensity of extreme rainfall events increases across the mid-Atlantic.This thesis aims to address the aforementioned concerns by (1) quantifying farm-specific year-round Eastern oyster (Crassostrea virginica) filtration at three oyster farms in the mid-Atlantic and (2) assessing the effects of decreased salinity on the filtration services provided by a wild oyster bed and an oyster farm in Delaware Bay, New Jersey. Field experiments were conducted seasonally using a flow-through filtration chamber with ambient water to calculate individual oyster filtration physiology. The experiments discussed in Chapter 1 provide a robust dataset of oyster feeding behavior observed under natural conditions across oyster farms. The results show oyster filtration physiology differed among locations and through the year. Collectively, an increase in salinity and temperature was associated with an increase in oyster physiological activity across all farms, but physiological activity at each farm was associated with a different suite of environmental variables (including total particulate matter and the organic content of seston). These data may be used in a broader framework to inform development of nutrient management strategies in the mid-Atlantic.The experiments discussed in Chapter 2 estimate the impacts of seasonal climatic stress (i.e., increased extreme precipitation events) on wild and farm oyster filtration. The results show wild and farm oyster populations provide reduced water quality benefits during a Hurricane Sandy scale salinity disturbance occurring between the spring and the late-fall. Individual wild and farm oyster responses to the low salinity conditions were varied highlighting the importance of gathering oyster- and site-specific feeding behavior data. These data may be used to inform proactive, long-term management of wild and farm oyster populations in the region to achieve water quality and oyster stock goals.Together, these chapters highlight the utility of wild and farm oysters as a nature-based water quality management tool and the importance of making conservative estimates of ecological filtration to account for days of low oyster physiological activity triggered by possible environmental stressors.

ISBN: 9798802700310Subjects--Topical Terms:

794747
Water resources management.
Subjects--Index Terms:

Aquaculture

Wild and Farm Eastern Oyster (Crassostrea virginica) Contributions to Improved Water Quality in the Mid-Atlantic: Contemporary and Future Climate Estimates.
LDR:04560nmm a2200409 4500 001 2348219
005 20220908123004.5
008 241004s2022 ||||||||||||||||| ||eng d
020 $a 9798802700310
035 $a (MiAaPQ)AAI29061263
035 $a AAI29061263
040 $a MiAaPQ $c MiAaPQ
100 1 $a Barr, Janine Meghan. $3 3687541
245 1 0 $a Wild and Farm Eastern Oyster (Crassostrea virginica) Contributions to Improved Water Quality in the Mid-Atlantic: Contemporary and Future Climate Estimates.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2022
300 $a 136 p.
500 $a Source: Masters Abstracts International, Volume: 83-12.
500 $a Advisor: Munroe, Daphne.
502 $a Thesis (M.S.)--Rutgers The State University of New Jersey, School of Graduate Studies, 2022.
506 $a This item must not be sold to any third party vendors.
520 $a Globally it is estimated that 85% of oyster reef ecosystems have been lost over the past 130 years as a result of overharvesting, changes in freshwater inflows, alterations to shorelines, disease, and other factors. This decline has resulted in a loss of the ecosystem services oysters provide such as water quality improvements. Restoration of natural oyster reefs has been a common solution, but research suggests oyster aquaculture could be providing equivalent or greater water quality benefits than reefs. However, the scale at which oyster farms provide important ecosystem services is not adequately known. Furthermore, there is a lack of data concerning site-specific effects of changes in salinity on oyster filtration. Oysters are generally resilient to changes in salinity, but prolonged exposure to low salinity conditions have caused severe mortality events in oyster populations. Low salinity stress will likely increase with climate change as the frequency and intensity of extreme rainfall events increases across the mid-Atlantic.This thesis aims to address the aforementioned concerns by (1) quantifying farm-specific year-round Eastern oyster (Crassostrea virginica) filtration at three oyster farms in the mid-Atlantic and (2) assessing the effects of decreased salinity on the filtration services provided by a wild oyster bed and an oyster farm in Delaware Bay, New Jersey. Field experiments were conducted seasonally using a flow-through filtration chamber with ambient water to calculate individual oyster filtration physiology. The experiments discussed in Chapter 1 provide a robust dataset of oyster feeding behavior observed under natural conditions across oyster farms. The results show oyster filtration physiology differed among locations and through the year. Collectively, an increase in salinity and temperature was associated with an increase in oyster physiological activity across all farms, but physiological activity at each farm was associated with a different suite of environmental variables (including total particulate matter and the organic content of seston). These data may be used in a broader framework to inform development of nutrient management strategies in the mid-Atlantic.The experiments discussed in Chapter 2 estimate the impacts of seasonal climatic stress (i.e., increased extreme precipitation events) on wild and farm oyster filtration. The results show wild and farm oyster populations provide reduced water quality benefits during a Hurricane Sandy scale salinity disturbance occurring between the spring and the late-fall. Individual wild and farm oyster responses to the low salinity conditions were varied highlighting the importance of gathering oyster- and site-specific feeding behavior data. These data may be used to inform proactive, long-term management of wild and farm oyster populations in the region to achieve water quality and oyster stock goals.Together, these chapters highlight the utility of wild and farm oysters as a nature-based water quality management tool and the importance of making conservative estimates of ecological filtration to account for days of low oyster physiological activity triggered by possible environmental stressors.
590 $a School code: 0190.
650 4 $a Water resources management. $3 794747
650 4 $a Ecology. $3 516476
650 4 $a Biological oceanography. $3 2122748
650 4 $a Aquatic sciences. $3 3174300
650 4 $a Hydrologic sciences. $3 3168407
653 $a Aquaculture
653 $a Ecosystem services
653 $a Nutrient management
653 $a Oyster reef ecosystems
653 $a Shellfish
653 $a Water quality
690 $a 0595
690 $a 0329
690 $a 0416
690 $a 0388
690 $a 0792
710 2 $a Rutgers The State University of New Jersey, School of Graduate Studies. $b Oceanography. $3 3427267
773 0 $t Masters Abstracts International $g 83-12.
790 $a 0190
791 $a M.S.
792 $a 2022
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29061263