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Using Broadscale Monitoring Data From Multiple Collaborators to Improve Understanding of Mysis diluviana Population Ecology and Acoustic Sampling
Using Broadscale Monitoring Data From Multiple Collaborators to Improve Understanding of Mysis diluviana Population Ecology and Acoustic Sampling
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202103635
- ISBN
- 9798293825103
- DDC
- 574
- 서명/저자
- Using Broadscale Monitoring Data From Multiple Collaborators to Improve Understanding of Mysis diluviana Population Ecology and Acoustic Sampling
- 발행사항
- [Sl] : Cornell University, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 191 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-03, Section: B.
- 주기사항
- Advisor: Rudstam, Lars.
- 학위논문주기
- Thesis (Ph.D.)--Cornell University, 2025.
- 초록/해제
- 요약Mysis diluviana are an ecologically important migratory macroinvertebrate found in the Laurentian Great Lakes and other deep lakes in north America. Several studies have been conducted to understand their ecology and acoustic sampling characteristics. However, these have often been on a scale more local than a whole lake or focused on just one lake rather than comparing between lakes. I was able to leverage collaborators' monitoring data to increase the scale at which parameters for population dynamics and acoustic properties could be studied. This increases our confidence about results at larger, more generally applicable scales of time and space. In Chapter 1, I estimated abundance, growth rate, mortality, reproduction, and secondary production of mysids across all of Lake Michigan during four seasons in 2015. We found that abundance and mysid production were relatively low in Lake Michigan in 2015. In Chapter 2, compared abundance trends over time, growth rates, fecundity rates, and mortality rates between all five Laurentian Great Lakes. We found that lakes ranked consistently across all vital rates (highest in Erie, followed by lakes Ontario, Michigan, Huron, and Superior). We also found that across all the lakes abundances were positively related to two food indices (zooplankton and chlorophyll) up to some threshold level after which values remained stable, although some lakes had lower values (likely due to predation). In Chapter 3, I report the acoustic material properties of mysids. I then applied a ray-based theoretical acoustic scattering model for mysids to in situ measurements from the Finger Lakes using the new parameter values. In Chapter 4, I use a large data set of paired acoustic-net data to examine the relationship between backscattering intensity and mysid abundance and to partition variability in TS according to size, lake, and vessel. I found that the relationships are significant and match theory, but individual site values vary greatly around the mean. TS was significantly related to vessel and mean size of mysids but not to lake, and much variability remained unexplained.
- 일반주제명
- Aquatic sciences
- 일반주제명
- Ecology
- 일반주제명
- Acoustics
- 키워드
- Mysis diluviana
- 키워드
- North America
- 기타저자
- Cornell University Natural Resources
- 기본자료저록
- Dissertations Abstracts International. 87-03B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■006m o d
■007cr#unu||||||||
■020 ▼a9798293825103
■035 ▼a(MiAaPQ)AAI32047560
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a574
■1001 ▼aHolda, Toby Joseph.▼0(orcid)0000-0003-3540-223X
■24510▼aUsing Broadscale Monitoring Data From Multiple Collaborators to Improve Understanding of Mysis diluviana Population Ecology and Acoustic Sampling
■260 ▼a[Sl]▼bCornell University▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a191 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-03, Section: B.
■500 ▼aAdvisor: Rudstam, Lars.
■5021 ▼aThesis (Ph.D.)--Cornell University, 2025.
■520 ▼aMysis diluviana are an ecologically important migratory macroinvertebrate found in the Laurentian Great Lakes and other deep lakes in north America. Several studies have been conducted to understand their ecology and acoustic sampling characteristics. However, these have often been on a scale more local than a whole lake or focused on just one lake rather than comparing between lakes. I was able to leverage collaborators' monitoring data to increase the scale at which parameters for population dynamics and acoustic properties could be studied. This increases our confidence about results at larger, more generally applicable scales of time and space. In Chapter 1, I estimated abundance, growth rate, mortality, reproduction, and secondary production of mysids across all of Lake Michigan during four seasons in 2015. We found that abundance and mysid production were relatively low in Lake Michigan in 2015. In Chapter 2, compared abundance trends over time, growth rates, fecundity rates, and mortality rates between all five Laurentian Great Lakes. We found that lakes ranked consistently across all vital rates (highest in Erie, followed by lakes Ontario, Michigan, Huron, and Superior). We also found that across all the lakes abundances were positively related to two food indices (zooplankton and chlorophyll) up to some threshold level after which values remained stable, although some lakes had lower values (likely due to predation). In Chapter 3, I report the acoustic material properties of mysids. I then applied a ray-based theoretical acoustic scattering model for mysids to in situ measurements from the Finger Lakes using the new parameter values. In Chapter 4, I use a large data set of paired acoustic-net data to examine the relationship between backscattering intensity and mysid abundance and to partition variability in TS according to size, lake, and vessel. I found that the relationships are significant and match theory, but individual site values vary greatly around the mean. TS was significantly related to vessel and mean size of mysids but not to lake, and much variability remained unexplained.
■590 ▼aSchool code: 0058.
■650 4▼aAquatic sciences
■650 4▼aEcology
■650 4▼aAcoustics
■650 4▼aNatural resource management
■653 ▼aMysis diluviana
■653 ▼aLaurentian Great Lakes
■653 ▼aMacroinvertebrate
■653 ▼aNorth America
■690 ▼a0792
■690 ▼a0329
■690 ▼a0986
■690 ▼a0528
■71020▼aCornell University▼bNatural Resources.
■7730 ▼tDissertations Abstracts International▼g87-03B.
■790 ▼a0058
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17358042▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
