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Showing 1 to 12 of 12 for “"Harbor seal"”.

  1. Rotational movement of a harbor seal whisker during vortex induced vibrations

    Hildner, Matthew (Matthew R.)Massachusetts Institute of Technology2015

    Harbor seal whiskers have geometry that reduces vortex induced vibrations. Previous experiments with rigid models of the harbor seal whiskers has shown that the reduced vibration of the whisker can be used to detect the wake of other objects in water. This project focused on expanding the …

    mit Repository record

  2. Harbor Seal (Phoca vitulina) Reproductive Advertisement Behavior And The Effects Of Vessel Noise

    Matthews, Leanna

    <p>Harbor seals (Phoca vitulina) are a widely distributed pinniped species that mate underwater. Similar to other aquatically mating pinnipeds, male harbor seals produce vocalizations during the breeding season that function in male-male interactions and possibly as an attractant for females. I …

    syracuse-diss Repository record

  3. Meteorological and geomorphological influence on harbor seal haul-out distribution behavior using drone imagery

    Sebastián Isaac Enault de Cambra 1999-2025

    Harbor seals in Kosterhavet National Park face critical challenges during summer months, as two sensitive life stages (pupping and molting) which are vital for the population’s success coincide in time with the increase in tourist activity. This study assessed how topography and meteorological …

    ag-u-iceland Repository record

  4. Do Pinnipeds Have Personality? Coding Harbor Seal (<i>Phoca vitulina</i>) and California Sea Lion (<i>Zalophus californianus</i>) Behavior Across Contexts

    de Vere, Amber J.2017

    … specific behaviors have been identified in grey seals (Robinson et al., 2015; Twiss & Franklin, 2010; Twiss, Culloch & Pomeroy, 2011; Twiss, Cairns, Culloch, Richards & Pomeroy, 2012). Furthermore, the context component of definitions of personality is not often assessed, despite evidence that …

    usm Repository record

  5. Pupping phenology, disturbance, movements, and dive patterns of the harbor seal (Phoca vitulina richardsi) off the northern San Juan Islands of Washington

    Suryan, Robert M

    sjsu Repository record

  6. Passive wake detection using seal whisker-inspired sensing

    Beem, Heather R.Massachusetts Institute of Technology and Woods Hole Oceanographic Institution2015

    … by biological experiments, which display the harbor seal's ability to track the wake of an object several seconds after it swam by. In this work, I elucidate the basic fluid mechanisms that seals may employ to accomplish this detection. Key are the unique vortex-induced vibration (VIV) …

    woods-hole Repository record

  7. Design and vibration testing of a flexible seal whisker model

    Gerber, Christopher DMassachusetts Institute of Technology2013

    Harbor seal whiskers have a unique surface structure that dramatically reduces vortex induced vibrations as they move through the water. Concurrently with rigid whisker experiments, this project focuses on the design and testing of a flexible model. The rubber model was cast with integrated Kevlar …

    mit Repository record

  8. Morphometric analysis of ears in two families of pinnipeds

    Marsh, Sarah ElizabethMassachusetts Institute of Technology and Woods Hole Oceanographic Institution2001

    Pinniped (seal and sea lion) auditory systems operate in two acoustically distinct environments, air and water. Piniped species differ in how much time they typically spend in water. They therefore offer an exceptional opportunity to investigate aquatic versus terrestrial hearing mechanisms. The …

    woods-hole Repository record

  9. Vocal communications among Harbor Seals (Phoca vitulina) on land

    Margaret Josephine Lawler 1999-2023

    Harbor seal (Phoca vitulina) vocalizations have been studied across different regions of their distribution and such studies can be used to understand interactions as well as how different environmental factors may affect them. For the first time, this study investigates the different vocalization …

    u-iceland Repository record

  10. Passive wake detection using seal whisker-inspired sensing

    Beem, Heather RachelMassachusetts Institute of Technology2015

    … of biological experiments that display the harbor seal's extraordinary ability to track the wake of an object several seconds after it has swum by. They do so despite having auditory and visual cues blocked, pointing to use of their whiskers as sensors of minute water movements. In this …

    mit Repository record

  11. Investigation of Bio-Inspired Pin Geometries for Heat Transfer Applications

    Prasad, Anish

    … increase their cooling performance. Bio-mimicked harbor seal whisker have been studied from an aerodynamic standpoint, due to their ability to reduce drag and flow unsteadiness. While applying this mimicked geometry in thermal management research, it was found that they lead to reduction in …

    embry-riddle Repository record

  12. Lipid studies in breath-hold diving mammals and obese, pre-diabetic mice.

    Young, Kathryn, 1984-Baylor University.2013

    … based on diving ability. Shallower divers (harbor seals, Phoca vitulina) demonstrated significantly higher C16 ceramide, 16:0 sphingomyelin, and dipalmitoylphosphatidylcholine (DPPC) levels compared to deeper divers (Weddell seals, Leptonychotes weddellii). Additionally, in comparing ringed …

    baylor Repository record