語系:
繁體中文
English
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
Long-Term Change in the Burden of An...
~
Mastick, Natalie C.
FindBook
Google Book
Amazon
博客來
Long-Term Change in the Burden of Anisakid Nematode Parasites for Marine Mammal Hosts.
紀錄類型:
書目-電子資源 : Monograph/item
正題名/作者:
Long-Term Change in the Burden of Anisakid Nematode Parasites for Marine Mammal Hosts./
作者:
Mastick, Natalie C.
出版者:
Ann Arbor : ProQuest Dissertations & Theses, : 2023,
面頁冊數:
228 p.
附註:
Source: Dissertations Abstracts International, Volume: 85-03, Section: B.
Contained By:
Dissertations Abstracts International85-03B.
標題:
Aquatic sciences. -
電子資源:
https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30634375
ISBN:
9798380334457
Long-Term Change in the Burden of Anisakid Nematode Parasites for Marine Mammal Hosts.
Mastick, Natalie C.
Long-Term Change in the Burden of Anisakid Nematode Parasites for Marine Mammal Hosts.
- Ann Arbor : ProQuest Dissertations & Theses, 2023 - 228 p.
Source: Dissertations Abstracts International, Volume: 85-03, Section: B.
Thesis (Ph.D.)--University of Washington, 2023.
This item must not be sold to any third party vendors.
Many marine mammal populations are failing to rebound despite legal protections; in this dissertation, I explore whether rising rates of parasitism may be placing an increasing energetic burden on already precarious host populations. Gastrointestinal parasites of the family Anisakidae are commonly found during necropsies of marine mammals. Anisakids have complex life cycles, requiring multiple intermediate hosts, including invertebrates, fishes, and cephalopods, to reach their definitive marine mammal hosts. These parasites have long been assumed to have only mild impacts on host health, but recent research suggests that the seriousness of these infections has been overlooked, with health effects ranging from energy loss and reduced immune system function to gastritis and ulceration in the gastrointestinal tract. Anisakid abundance in intermediate fish hosts is increasing globally. In some regions, increases in anisakids in fish have been linked to increasing marine mammal definitive host abundance. With legislation prohibiting their exploitation, many marine mammal populations have been able to recover to historic abundances, potentially increasing anisakid transmission in their ecosystems. However, other marine mammals have lagged in their recovery. As some marine mammal species increase, they may be increasing the burden of parasitism on more vulnerable species, essentially engaging in "apparent competition." In this dissertation, I assess how anisakid abundances have changed in important prey species both globally and in the North Pacific, what factors may drive these changes, and estimate infection rates in a population of endangered killer whales. In Chapter 1, I used a meta-analytic dataset of anisakid abundance in fish and cephalopod species to assess how anisakid abundance has changed globally in important marine mammal prey species over the past few decades. However, this dataset does not include data from the marine-mammal-rich Northeast Pacific. In Chapter 2, I use museum specimens of ecologically important fish prey species collected in Puget Sound, Washington, USA, from 1920-2018 to determine how anisakid abundances have changed over time in relation to possible definitive host and environmental drivers. Museum collections lack adult salmon specimens, a common prey item for many marine mammals in this region. In Chapter 3, I use a novel data source, archived canned salmon, to assess changes in anisakid abundance in four species of Alaskan salmon from 1979-2021. Finally, in Chapter 4, I test for parasitism among southern resident killer whales, a highly endangered marine mammal population whose range includes Alaska and Puget Sound; I also assess whether infections are correlated with poor body condition. Taken together, these four chapters reveal recent increases in anisakids both globally and regionally in the Northeast Pacific. In Puget Sound, this increase coincides with and may be caused by increasing marine mammal abundances. Furthermore, southern resident killer whales face a high burden of anisakids, which may be putting additional energetic stress on this already vulnerable population. My findings reveal a changing landscape of infection risk, which could represent an increasing threat to vulnerable marine mammal populations in Puget Sound, Alaska, and beyond.
ISBN: 9798380334457Subjects--Topical Terms:
3174300
Aquatic sciences.
Subjects--Index Terms:
Anisakids
Long-Term Change in the Burden of Anisakid Nematode Parasites for Marine Mammal Hosts.
LDR
:04580nmm a2200409 4500
001
2393370
005
20240315085548.5
006
m o d
007
cr#unu||||||||
008
251215s2023 ||||||||||||||||| ||eng d
020
$a
9798380334457
035
$a
(MiAaPQ)AAI30634375
035
$a
AAI30634375
040
$a
MiAaPQ
$c
MiAaPQ
100
1
$a
Mastick, Natalie C.
$3
3762826
245
1 0
$a
Long-Term Change in the Burden of Anisakid Nematode Parasites for Marine Mammal Hosts.
260
1
$a
Ann Arbor :
$b
ProQuest Dissertations & Theses,
$c
2023
300
$a
228 p.
500
$a
Source: Dissertations Abstracts International, Volume: 85-03, Section: B.
500
$a
Advisor: Wood, Chelsea.
502
$a
Thesis (Ph.D.)--University of Washington, 2023.
506
$a
This item must not be sold to any third party vendors.
520
$a
Many marine mammal populations are failing to rebound despite legal protections; in this dissertation, I explore whether rising rates of parasitism may be placing an increasing energetic burden on already precarious host populations. Gastrointestinal parasites of the family Anisakidae are commonly found during necropsies of marine mammals. Anisakids have complex life cycles, requiring multiple intermediate hosts, including invertebrates, fishes, and cephalopods, to reach their definitive marine mammal hosts. These parasites have long been assumed to have only mild impacts on host health, but recent research suggests that the seriousness of these infections has been overlooked, with health effects ranging from energy loss and reduced immune system function to gastritis and ulceration in the gastrointestinal tract. Anisakid abundance in intermediate fish hosts is increasing globally. In some regions, increases in anisakids in fish have been linked to increasing marine mammal definitive host abundance. With legislation prohibiting their exploitation, many marine mammal populations have been able to recover to historic abundances, potentially increasing anisakid transmission in their ecosystems. However, other marine mammals have lagged in their recovery. As some marine mammal species increase, they may be increasing the burden of parasitism on more vulnerable species, essentially engaging in "apparent competition." In this dissertation, I assess how anisakid abundances have changed in important prey species both globally and in the North Pacific, what factors may drive these changes, and estimate infection rates in a population of endangered killer whales. In Chapter 1, I used a meta-analytic dataset of anisakid abundance in fish and cephalopod species to assess how anisakid abundance has changed globally in important marine mammal prey species over the past few decades. However, this dataset does not include data from the marine-mammal-rich Northeast Pacific. In Chapter 2, I use museum specimens of ecologically important fish prey species collected in Puget Sound, Washington, USA, from 1920-2018 to determine how anisakid abundances have changed over time in relation to possible definitive host and environmental drivers. Museum collections lack adult salmon specimens, a common prey item for many marine mammals in this region. In Chapter 3, I use a novel data source, archived canned salmon, to assess changes in anisakid abundance in four species of Alaskan salmon from 1979-2021. Finally, in Chapter 4, I test for parasitism among southern resident killer whales, a highly endangered marine mammal population whose range includes Alaska and Puget Sound; I also assess whether infections are correlated with poor body condition. Taken together, these four chapters reveal recent increases in anisakids both globally and regionally in the Northeast Pacific. In Puget Sound, this increase coincides with and may be caused by increasing marine mammal abundances. Furthermore, southern resident killer whales face a high burden of anisakids, which may be putting additional energetic stress on this already vulnerable population. My findings reveal a changing landscape of infection risk, which could represent an increasing threat to vulnerable marine mammal populations in Puget Sound, Alaska, and beyond.
590
$a
School code: 0250.
650
4
$a
Aquatic sciences.
$3
3174300
650
4
$a
Ecology.
$3
516476
650
4
$a
Parasitology.
$3
635062
653
$a
Anisakids
653
$a
Historical ecology
653
$a
Killer whales
653
$a
Marine mammals
653
$a
Parasites
653
$a
Salmon
690
$a
0792
690
$a
0329
690
$a
0718
710
2
$a
University of Washington.
$b
Aquatic and Fishery Sciences.
$3
2093042
773
0
$t
Dissertations Abstracts International
$g
85-03B.
790
$a
0250
791
$a
Ph.D.
792
$a
2023
793
$a
English
856
4 0
$u
https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30634375
筆 0 讀者評論
館藏地:
全部
電子資源
出版年:
卷號:
館藏
1 筆 • 頁數 1 •
1
條碼號
典藏地名稱
館藏流通類別
資料類型
索書號
使用類型
借閱狀態
預約狀態
備註欄
附件
W9501690
電子資源
11.線上閱覽_V
電子書
EB
一般使用(Normal)
在架
0
1 筆 • 頁數 1 •
1
多媒體
評論
新增評論
分享你的心得
Export
取書館
處理中
...
變更密碼
登入