東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

FindBook

Google Book

Amazon

博客來

Quantifying Food Web Interactions and Limitations for Native Salmonids in Ross Lake, WA and Implications for the Introduction of Anadromous Salmonids.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Quantifying Food Web Interactions and Limitations for Native Salmonids in Ross Lake, WA and Implications for the Introduction of Anadromous Salmonids./
作者:	Johnson, Rachelle Carina.
面頁冊數:	1 online resource (306 pages)
附註:	Source: Dissertations Abstracts International, Volume: 85-01, Section: B.
Contained By:	Dissertations Abstracts International85-01B.
標題:	Aquatic sciences. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30527380click for full text (PQDT)
ISBN:	9798379906870

Quantifying Food Web Interactions and Limitations for Native Salmonids in Ross Lake, WA and Implications for the Introduction of Anadromous Salmonids.
Johnson, Rachelle Carina.

Quantifying Food Web Interactions and Limitations for Native Salmonids in Ross Lake, WA and Implications for the Introduction of Anadromous Salmonids. - 1 online resource (306 pages)

Source: Dissertations Abstracts International, Volume: 85-01, Section: B.

Thesis (Ph.D.)--University of Washington, 2023.

Includes bibliographical references

Food web function influences ecosystem productivity and plays a critical role in ecosystem services and conservation of species of concern. In reservoirs, existing and future changes to these ecosystems (e.g., invasive species, climate change, water operations) may alter their capacity to support native species. As introducing anadromous fish upstream of migration barriers is gaining traction as a conservation strategy, these food web dynamics can also influence the success or failure of such programs. In this dissertation, I explore these ideas using Ross Lake, a hydropower reservoir in the Upper Skagit River, Washington, USA, as a case study. I used a bioenergetics-based approach to quantify food web interactions to identify potential limitations (e.g., prey supply, predation, temperature) to growth and production of native species and proposed introductions of anadromous salmonids in the lake and examined these processes within the context of seasonal thermal constraints on habitat use and prey availability. In Ross Lake, the proliferation of an unauthorized introduction of redside shiner Richardsoniu balteatus approximately 20 years ago has fundamentally altered food web interactions by providing a novel prey source for piscivorous fishes and becoming the dominant zooplanktivore/invertivore. A bioenergetics model did not exist for this species; therefore, my first objective was to parameterize and evaluate this model using controlled laboratory experiments (Chapter 1). With this model in our toolbelt, I then quantified food web interactions to identify the relative roles of direct competition with redside shiner (Chapter 2) versus predation (Chapter 3) in limiting growth and production of native salmonids in Ross Lake. This baseline assessment of the bottom-up and top-down limitations in the Ross Lake food web provided the foundation to then examine these food web dynamics in the reservoir as limitations to the feasibility of introducing anadromous salmonids above the Upper Skagit River dams (Chapter 4). Collectively, this dissertation provides a framework for assessing the food web constraints to native species conservation in regulated river systems, including important considerations for future feasibility studies in Ross Lake and other regulated rivers where anadromous salmonid introduction programs are considered.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798379906870Subjects--Topical Terms:

3174300
Aquatic sciences.
Subjects--Index Terms:

Anadromous salmonidIndex Terms--Genre/Form:

542853
Electronic books.

Quantifying Food Web Interactions and Limitations for Native Salmonids in Ross Lake, WA and Implications for the Introduction of Anadromous Salmonids.
LDR:03819nmm a2200397K 4500 001 2359465
005 20230917193957.5
006 m o d
007 cr mn ---uuuuu
008 241011s2023 xx obm 000 0 eng d
020 $a 9798379906870
035 $a (MiAaPQ)AAI30527380
035 $a AAI30527380
040 $a MiAaPQ $b eng $c MiAaPQ $d NTU
100 1 $a Johnson, Rachelle Carina. $3 3700068
245 1 0 $a Quantifying Food Web Interactions and Limitations for Native Salmonids in Ross Lake, WA and Implications for the Introduction of Anadromous Salmonids.
264 0 $c 2023
300 $a 1 online resource (306 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Dissertations Abstracts International, Volume: 85-01, Section: B.
500 $a Advisor: Olden, Julian D.; Beauchamp, David A.
502 $a Thesis (Ph.D.)--University of Washington, 2023.
504 $a Includes bibliographical references
520 $a Food web function influences ecosystem productivity and plays a critical role in ecosystem services and conservation of species of concern. In reservoirs, existing and future changes to these ecosystems (e.g., invasive species, climate change, water operations) may alter their capacity to support native species. As introducing anadromous fish upstream of migration barriers is gaining traction as a conservation strategy, these food web dynamics can also influence the success or failure of such programs. In this dissertation, I explore these ideas using Ross Lake, a hydropower reservoir in the Upper Skagit River, Washington, USA, as a case study. I used a bioenergetics-based approach to quantify food web interactions to identify potential limitations (e.g., prey supply, predation, temperature) to growth and production of native species and proposed introductions of anadromous salmonids in the lake and examined these processes within the context of seasonal thermal constraints on habitat use and prey availability. In Ross Lake, the proliferation of an unauthorized introduction of redside shiner Richardsoniu balteatus approximately 20 years ago has fundamentally altered food web interactions by providing a novel prey source for piscivorous fishes and becoming the dominant zooplanktivore/invertivore. A bioenergetics model did not exist for this species; therefore, my first objective was to parameterize and evaluate this model using controlled laboratory experiments (Chapter 1). With this model in our toolbelt, I then quantified food web interactions to identify the relative roles of direct competition with redside shiner (Chapter 2) versus predation (Chapter 3) in limiting growth and production of native salmonids in Ross Lake. This baseline assessment of the bottom-up and top-down limitations in the Ross Lake food web provided the foundation to then examine these food web dynamics in the reservoir as limitations to the feasibility of introducing anadromous salmonids above the Upper Skagit River dams (Chapter 4). Collectively, this dissertation provides a framework for assessing the food web constraints to native species conservation in regulated river systems, including important considerations for future feasibility studies in Ross Lake and other regulated rivers where anadromous salmonid introduction programs are considered.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Aquatic sciences. $3 3174300
650 4 $a Ecology. $3 516476
650 4 $a Animal sciences. $3 3174829
653 $a Anadromous salmonid
653 $a Fish bioenergetics
653 $a Food web
653 $a Reservoir
653 $a Ecosystem
655 7 $a Electronic books. $2 lcsh $3 542853
690 $a 0792
690 $a 0329
690 $a 0475
710 2 $a ProQuest Information and Learning Co. $3 783688
710 2 $a University of Washington. $b Aquatic and Fishery Sciences. $3 2093042
773 0 $t Dissertations Abstracts International $g 85-01B.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30527380 $z click for full text (PQDT)