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Signals in the Stream: Using Telemetry to Unravel the Influence of Currents, Geomorphology, and Predator Cues on Sea Lamprey Migration
Signals in the Stream: Using Telemetry to Unravel the Influence of Currents, Geomorphology, and Predator Cues on Sea Lamprey Migration
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202103600
- ISBN
- 9798315740292
- DDC
- 574.5
- 서명/저자
- Signals in the Stream: Using Telemetry to Unravel the Influence of Currents, Geomorphology, and Predator Cues on Sea Lamprey Migration
- 발행사항
- [Sl] : Michigan State University, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 121 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-11, Section: B.
- 주기사항
- Advisor: Wagner, Clifford M.
- 학위논문주기
- Thesis (Ph.D.)--Michigan State University, 2025.
- 초록/해제
- 요약The spawning migration is a critical life stage for many fishes, demanding effective navigation, energy management, and risk avoidance strategies. This is particularly challenging for non-homing, semelparous species like the sea lamprey (Petromyzon marinus), which undertakes extensive riverine migrations fueled solely by endogenous energy reserves while facing novel predation threats. Understanding the behavioral mechanisms underlying this migration extends beyond the increasing our knowledge of the movement ecology and animal behavior. It is crucial for both controlling invasive populations in the Laurentian Great Lakes and conserving native populations elsewhere. This dissertation integrates fine scale acoustic telemetry, computational fluid dynamics (CFD) modeling, and field-based experimental manipulations to investigate how migrating sea lampreys respond to key environmental signals-hydrogeomorphology, hydrodynamic currents, and chemical risk cues-within a natural river system.First, we demonstrate that sea lampreys utilize persistent geomorphological features for navigation. Tracking revealed that migrants consistently follow river thalwegs (deepest channels), swimming near the substrate. This behavior conferred a mean energetic saving of 5.8% compared to near-surface swimming and likely enhances safety from shoreline predators. We propose a novel navigation mechanism, hydrostatic pressure-guided rheotaxis, facilitates this efficient and potentially safer movement strategy. Second, we provide field-based validation of energy optimization theory by examining swim tactics in varying currents. Sea lampreys adjusted their swim speed to maintain a relatively constant ground speed (mean 0.92 body lengths s-1), consistent with minimizing the cost of transport according to exponential models. Minor decreases in speed in deeper water suggest potential trade-offs with perceived risk. Third, we investigated responses to predation risk using conspecific alarm cues. Exposure induced structured changes in movement consistent with odor-guided rheotaxis, including a localized intensive search phase (reduced speed, increased tortuosity). Critically, when navigating the risk cue, lampreys prioritized immediate avoidance of the odor plume, splitting paths around the source, rather than selecting routes through deeper, putatively safer, habitat.Collectively, these studies reveal that sea lamprey migration is guided by a sophisticated integration of environmental signals, resulting in predictable, context-dependent movement patterns. This research enhances our mechanistic understanding of migration ecology and provides actionable insights for management and conservation, informing the placement of control or passage devices and the application of behavioral manipulation strategies by highlighting the importance of river morphology, flow dynamics, and sensory cue interpretation.
- 일반주제명
- Ecology
- 일반주제명
- Behavioral sciences
- 일반주제명
- Animal sciences
- 키워드
- Migration
- 키워드
- Optimal swimming
- 키워드
- Sea lamprey
- 기타저자
- Michigan State University Fisheries and Wildlife - Doctor of Philosophy
- 기본자료저록
- Dissertations Abstracts International. 86-11B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■006m o d
■007cr#unu||||||||
■020 ▼a9798315740292
■035 ▼a(MiAaPQ)AAI32042424
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a574.5
■1001 ▼aGriffin, Kandace R.▼0(orcid)0000-0003-3325-3779
■24510▼aSignals in the Stream: Using Telemetry to Unravel the Influence of Currents, Geomorphology, and Predator Cues on Sea Lamprey Migration
■260 ▼a[Sl]▼bMichigan State University▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a121 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-11, Section: B.
■500 ▼aAdvisor: Wagner, Clifford M.
■5021 ▼aThesis (Ph.D.)--Michigan State University, 2025.
■520 ▼aThe spawning migration is a critical life stage for many fishes, demanding effective navigation, energy management, and risk avoidance strategies. This is particularly challenging for non-homing, semelparous species like the sea lamprey (Petromyzon marinus), which undertakes extensive riverine migrations fueled solely by endogenous energy reserves while facing novel predation threats. Understanding the behavioral mechanisms underlying this migration extends beyond the increasing our knowledge of the movement ecology and animal behavior. It is crucial for both controlling invasive populations in the Laurentian Great Lakes and conserving native populations elsewhere. This dissertation integrates fine scale acoustic telemetry, computational fluid dynamics (CFD) modeling, and field-based experimental manipulations to investigate how migrating sea lampreys respond to key environmental signals-hydrogeomorphology, hydrodynamic currents, and chemical risk cues-within a natural river system.First, we demonstrate that sea lampreys utilize persistent geomorphological features for navigation. Tracking revealed that migrants consistently follow river thalwegs (deepest channels), swimming near the substrate. This behavior conferred a mean energetic saving of 5.8% compared to near-surface swimming and likely enhances safety from shoreline predators. We propose a novel navigation mechanism, hydrostatic pressure-guided rheotaxis, facilitates this efficient and potentially safer movement strategy. Second, we provide field-based validation of energy optimization theory by examining swim tactics in varying currents. Sea lampreys adjusted their swim speed to maintain a relatively constant ground speed (mean 0.92 body lengths s-1), consistent with minimizing the cost of transport according to exponential models. Minor decreases in speed in deeper water suggest potential trade-offs with perceived risk. Third, we investigated responses to predation risk using conspecific alarm cues. Exposure induced structured changes in movement consistent with odor-guided rheotaxis, including a localized intensive search phase (reduced speed, increased tortuosity). Critically, when navigating the risk cue, lampreys prioritized immediate avoidance of the odor plume, splitting paths around the source, rather than selecting routes through deeper, putatively safer, habitat.Collectively, these studies reveal that sea lamprey migration is guided by a sophisticated integration of environmental signals, resulting in predictable, context-dependent movement patterns. This research enhances our mechanistic understanding of migration ecology and provides actionable insights for management and conservation, informing the placement of control or passage devices and the application of behavioral manipulation strategies by highlighting the importance of river morphology, flow dynamics, and sensory cue interpretation.
■590 ▼aSchool code: 0128.
■650 4▼aEcology
■650 4▼aBehavioral sciences
■650 4▼aAnimal sciences
■653 ▼aAcoustic telemetry
■653 ▼aBehavioral mechanisms
■653 ▼aMigration
■653 ▼aOptimal swimming
■653 ▼aSea lamprey
■690 ▼a0329
■690 ▼a0602
■690 ▼a0475
■71020▼aMichigan State University▼bFisheries and Wildlife - Doctor of Philosophy.
■7730 ▼tDissertations Abstracts International▼g86-11B.
■790 ▼a0128
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17357787▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
