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Controls on Planktonic Ecosystem Structure in Eastern Boundary Upwelling Systems: A Modeling Perspective.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Controls on Planktonic Ecosystem Structure in Eastern Boundary Upwelling Systems: A Modeling Perspective./
Author:	Moscoso, Jordyn Elizabeth.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2022,
Description:	229 p.
Notes:	Source: Dissertations Abstracts International, Volume: 83-12, Section: B.
Contained By:	Dissertations Abstracts International83-12B.
Subject:	Physical oceanography. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29214006
ISBN:	9798802750209

Controls on Planktonic Ecosystem Structure in Eastern Boundary Upwelling Systems: A Modeling Perspective.
Moscoso, Jordyn Elizabeth.

Controls on Planktonic Ecosystem Structure in Eastern Boundary Upwelling Systems: A Modeling Perspective. - Ann Arbor : ProQuest Dissertations & Theses, 2022 - 229 p.

Source: Dissertations Abstracts International, Volume: 83-12, Section: B.

Thesis (Ph.D.)--University of California, Los Angeles, 2022.

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

Eastern boundary upwelling systems (EBUSs) are among the most ecologically diverse and productive regions in the ocean. EBUSs account for approximately 1% of the global ocean by area, but yields nearly 20% of the global fish catch. Thus, consequences to changes in productivity in EBUSs anticipated under climate change span from regional socioeconomic stability to global food security. Ecological responses to wind-driven upwelling in EBUSs have long been studied, yet questions still remain on the controls of the cross-shore (zonal) ecosystem composition. Previous studies indicate that large plankton contribute to a majority of the biomass near the coast, where upwelling supports high levels of productivity, whereas small plankton account for most of the biomass in offshore regions with low productivity. However, little is known about the variations in zonal ecosystem composition with respect to perturbations in the large-scale physical forcing. In this thesis, I present a new quasi-2D, idealized physical model of EBUSs and a size structured ecosystem model, in which an organism's size is chosen to represent ecological diversity. With this coupled physical-biogeochemical model, we characterize the zonal ecosystem composition and its responses to perturbations. These results are an important step toward understanding the sensitivities of plankton communities and higher food-web structure in EBUSs.

ISBN: 9798802750209Subjects--Topical Terms:

3168433
Physical oceanography.
Subjects--Index Terms:

Plankton

Controls on Planktonic Ecosystem Structure in Eastern Boundary Upwelling Systems: A Modeling Perspective.
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100 1 $a Moscoso, Jordyn Elizabeth. $3 3687643
245 1 0 $a Controls on Planktonic Ecosystem Structure in Eastern Boundary Upwelling Systems: A Modeling Perspective.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2022
300 $a 229 p.
500 $a Source: Dissertations Abstracts International, Volume: 83-12, Section: B.
500 $a Advisor: Bianchi, Daniele;Stewart, Andrew L.
502 $a Thesis (Ph.D.)--University of California, Los Angeles, 2022.
506 $a This item must not be sold to any third party vendors.
520 $a Eastern boundary upwelling systems (EBUSs) are among the most ecologically diverse and productive regions in the ocean. EBUSs account for approximately 1% of the global ocean by area, but yields nearly 20% of the global fish catch. Thus, consequences to changes in productivity in EBUSs anticipated under climate change span from regional socioeconomic stability to global food security. Ecological responses to wind-driven upwelling in EBUSs have long been studied, yet questions still remain on the controls of the cross-shore (zonal) ecosystem composition. Previous studies indicate that large plankton contribute to a majority of the biomass near the coast, where upwelling supports high levels of productivity, whereas small plankton account for most of the biomass in offshore regions with low productivity. However, little is known about the variations in zonal ecosystem composition with respect to perturbations in the large-scale physical forcing. In this thesis, I present a new quasi-2D, idealized physical model of EBUSs and a size structured ecosystem model, in which an organism's size is chosen to represent ecological diversity. With this coupled physical-biogeochemical model, we characterize the zonal ecosystem composition and its responses to perturbations. These results are an important step toward understanding the sensitivities of plankton communities and higher food-web structure in EBUSs.
590 $a School code: 0031.
650 4 $a Physical oceanography. $3 3168433
650 4 $a Biological oceanography. $3 2122748
650 4 $a Chemical oceanography. $3 516760
653 $a Plankton
653 $a Eastern boundary upwelling systems (EBUSs)
690 $a 0415
690 $a 0416
690 $a 0403
710 2 $a University of California, Los Angeles. $b Atmospheric & Oceanic Sciences 002E. $3 3280774
773 0 $t Dissertations Abstracts International $g 83-12B.
790 $a 0031
791 $a Ph.D.
792 $a 2022
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29214006