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Estimating Relative Sensitivities of...

Keil, Katherine E.

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Estimating Relative Sensitivities of Zooplankton to Ocean Acidification and Comparing to Observations in Situ.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Estimating Relative Sensitivities of Zooplankton to Ocean Acidification and Comparing to Observations in Situ./
Author:	Keil, Katherine E.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
Description:	58 p.
Notes:	Source: Masters Abstracts International, Volume: 81-04.
Contained By:	Masters Abstracts International81-04.
Subject:	Biological oceanography. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13900287
ISBN:	9781088306505

Estimating Relative Sensitivities of Zooplankton to Ocean Acidification and Comparing to Observations in Situ.
Keil, Katherine E.

Estimating Relative Sensitivities of Zooplankton to Ocean Acidification and Comparing to Observations in Situ. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 58 p.

Source: Masters Abstracts International, Volume: 81-04.

Thesis (M.M.A.)--University of Washington, 2019.

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

Laboratory studies show that low pH and high pCO2 associated with ocean acidification can significantly affect the survival, growth, calcification, development, reproduction, and metabolism of planktonic organisms. To understand how sensitivity to ocean acidification varies among species, I conducted a meta-analysis of six taxonomic groups of zooplankton that are common within marine waters of the Pacific Northwest. I determined that pteropods are the taxon most sensitive to increasing levels of pCO2, and that calcification is the process most severely affected. I then sought to determine whether observed distributions of zooplankton in Puget Sound, Washington were statistically associated with carbon system variables, and whether field observations supported findings from the meta-analysis regarding taxon-specific sensitivities. During two research cruises in June and August of 2017, I collected zooplankton and physical and chemical data at six research stations from South Hood Canal to South Puget Sound Basin. Zooplankton community composition and density varied across location and time, with copepods, a highly sensitive taxon, and larvaceans, the least sensitive taxon, accounting for the highest densities (70.2% and 14.8% respectively) over the two sampling periods. Statistical analyses revealed that a combination of temperature, fluorescence, dissolved oxygen, and salinity was the primary determinant of zooplankton abundance at these stations during the two sampling periods. I found little association between empirical measures of station pH and taxon abundance by sensitivity category (as revealed by the meta-analysis), suggesting that sensitivity to ocean acidification plays a subordinate role in determining the abundance of some zooplankton taxa.

ISBN: 9781088306505Subjects--Topical Terms:

2122748
Biological oceanography.
Subjects--Index Terms:

Calcification

Estimating Relative Sensitivities of Zooplankton to Ocean Acidification and Comparing to Observations in Situ.
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245 1 0 $a Estimating Relative Sensitivities of Zooplankton to Ocean Acidification and Comparing to Observations in Situ.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2019
300 $a 58 p.
500 $a Source: Masters Abstracts International, Volume: 81-04.
500 $a Advisor: Klinger, Terrie.
502 $a Thesis (M.M.A.)--University of Washington, 2019.
506 $a This item must not be sold to any third party vendors.
506 $a This item must not be added to any third party search indexes.
520 $a Laboratory studies show that low pH and high pCO2 associated with ocean acidification can significantly affect the survival, growth, calcification, development, reproduction, and metabolism of planktonic organisms. To understand how sensitivity to ocean acidification varies among species, I conducted a meta-analysis of six taxonomic groups of zooplankton that are common within marine waters of the Pacific Northwest. I determined that pteropods are the taxon most sensitive to increasing levels of pCO2, and that calcification is the process most severely affected. I then sought to determine whether observed distributions of zooplankton in Puget Sound, Washington were statistically associated with carbon system variables, and whether field observations supported findings from the meta-analysis regarding taxon-specific sensitivities. During two research cruises in June and August of 2017, I collected zooplankton and physical and chemical data at six research stations from South Hood Canal to South Puget Sound Basin. Zooplankton community composition and density varied across location and time, with copepods, a highly sensitive taxon, and larvaceans, the least sensitive taxon, accounting for the highest densities (70.2% and 14.8% respectively) over the two sampling periods. Statistical analyses revealed that a combination of temperature, fluorescence, dissolved oxygen, and salinity was the primary determinant of zooplankton abundance at these stations during the two sampling periods. I found little association between empirical measures of station pH and taxon abundance by sensitivity category (as revealed by the meta-analysis), suggesting that sensitivity to ocean acidification plays a subordinate role in determining the abundance of some zooplankton taxa.
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653 $a Ocean acidification
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653 $a Sensitivity
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