Browsing Friday Harbor Laboratories Student Research Papers by Title
Now showing items 242-261 of 529
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Habitat preference of the Pacific Sand Lance (Ammodytes hexapterus) in the San Juan Channel in the fall: 2014 season and interannual comparison 2012-2014
(Friday Harbor Laboratories, 2014-12)Previous studies have found that the Pacific Sand Lance prefer to bury into sediment that is mainly composed of coarse sand and low gravel. This study explored whether that was the case for sand lance buried in the sand ... -
Habitat structure and preference of harbor seals ( Phoca vitulina) during the summer in the San Juan Islands, Washington.
(Friday Harbor Labs, 2011-09)Surveying the habitat, interactions between harbor seals (Phoca vitulina) and the habitat and also their behavior is important to better understanding these seals. The number of seals hauled out on each site was compared ... -
Habitat Use by Steller Sea Lions (Eumetopias jubatus), Harlequin Ducks (Histrionicus histrionicus), and Black Oystercatchers (Haematopus bachmani) at Cattle Pass, Washington
(Friday Harbor Laboratories, 2014-08)Two studies were conducted at Cattle Pass, Washington between 13-18 August 2014. The first study was conducted to determine the relationship between tidal height and the haul-out abundance of Steller Sea Lions (Eumetopias ... -
Habitat Use by Steller Sea Lions (Eumetopias jubatus), Harlequin Ducks (Histrionicus histrionicus), and Black Oystercatchers (Haematopus bachmani) at Cattle Pass, Washington
(Friday Harbor Laboratories, 2014-08)Two studies were conducted at Cattle Pass, Washington between 13-18 August 2014. The first study was conducted to determine the relationship between tidal height and the haul-out abundance of Steller Sea Lions (Eumetopias ... -
Harbor Seal (Phoca vitulina) Haul-Out Patterns Relative to Air Temperature during Summer in the San Juan Islands, Washington
(Friday Harbor Labs, 2011-09)I present data taken during observations of harbor seal haul-outs and evaluate what effect temperature has on the number of seals hauled out on rocks. I propose some possibilities as to what might be influencing harbor ... -
Haul-out Behavior of Harbor Seals (Phoca vitulina) in Summer on Yellow Island: Diel Patterns Contrasting Females with Pups and Solitary Seals
(Friday Harbor Labs, 2011-09)Knowledge of harbor seal distribution, abundance, and site fidelity is essential for conservation, as is knowledge of female-pup behavior. I focused on these elements in this study by assessing haul-out tendencies of a ... -
High potential imaging technology for analysis of in situ patchiness
(Friday Harbor Laboratories, 2012-10)Modern ecological theory is largely based off mean field assumptions that can overlook the critically important “patchiness”, areas of high and low resource distributions, that define ecosystems. Also, studying the fine ... -
History of Struggle at the San Juan Island Farmers’ Market
(Friday Harbor Labs, 2011-12)Farmers’ markets are exploding in numbers all over the country in recent years due to an increased demand to reclaim the right to know who grows food and what it contains. While many studies exist to address this growing ... -
History of Struggle at the San Juan Island Farmers’ Market
(2011)Farmers’ markets are exploding in numbers all over the country in recent years due to an increased demand to reclaim the right to know who grows food and what it contains. While many studies exist to address this growing ... -
Hoins 1 Efficiency of Strongylocentrotus franciscanus in extracting calories from algal foods: implications for benthic communities
(Friday Harbor Laboratories, 2014-06-30)Algal subsidies are extremely important to the success of the deep benthos where there is little to no primary productivity. Little research has been done on the nutritional value of detritus, such as pieces of kelp, sinking ... -
“Hooking” and “Sheeting:” strategies utilized by Haminoea vesicula to maintain stability on different substrates
(Friday Harbor Laboratories, 2014-08-30)Many marine gastropods face the challenge of adhering to substrates under adverse flow conditions. Some species live on both solid and sedimentary substrates, although how these substrate generalists resist detachment from ... -
“Hooking” and “Sheeting:” strategies utilized by Haminoea vesicula to maintain stability on different substrates
(Friday Harbor Laboratories, 2014-08)Many marine gastropods face the challenge of adhering to substrates under adverse flow conditions. Some species live on both solid and sedimentary substrates, although how these substrate generalists resist detachment from ... -
How environment affects the mechanics of development in Dendraster
(Friday Harbor Laboratories, 2012-10)Organisms can develop normally and thrive in dynamic environments. The interplay between the environment and the biomechanics of morphogenesis can help us understand how development operates in a changing world. Effects ... -
How speed of separation affects suction adhesion of the limpet, Lottia scutum
(Friday Harbor Labs, 2011-05)The intertidal limpet, Lottia scutum, is a key grazer keeping algal levels in check. Because limpets rely heavily on suction to prevent dislodgment during foraging, it is important to understand the tenacity of suction ... -
How water flow interacts with the rhinophores in Tritonia tetraquetra
(Friday Harbor Laboratories, 2015-09)We were interested in learning how olfactory cues that guide navigation in the gastropod nudibranch Tritonia tetraquetra, formerly known as Tritonia diomedea are received by the rhinophores in turbulent flow. We measured ... -
Hull flotation function in the eggs of Mopalia ciliata (Chitonida: Mopaliidae) and swimming of its larvae through ontogeny
(Friday Harbor Laboratories, 2014-08)The free-spawning species of chitons produce eggs that are enclosed in a capsule known as the hull. Particularly in the group of Chitonida, this outer coat is formed by spine projections. Previous studies have identified ... -
Hull flotation function in the eggs of Mopalia ciliata (Chitonida: Mopaliidae) and swimming of its larvae through ontogeny
(Friday Harbor Laboratories, 2014-10)The free-spawning species of chitons produce eggs that are enclosed in a capsule known as the hull. Particularly in the group of Chitonida, this outer coat is formed by spine projections. Previous studies have identified ... -
Hydrodynamic capabilities of Pisaster ochraceus larvae raised low salinity
(Friday Harbor Laboratories, 2012-10)Environmental variations act as stressors on organisms, and can strongly influence the geographic ranges of species. A source of environmental variation in the marine environments of the San Juan Islands is salinity ... -
The hydrodynamic costs of spination in zoea
(Friday Harbor Laboratories, 2014-08)The benefits of spines in zoea and other crustaceans have been documented in numerous studies as a form of anti-°©‐predatory behavior. This study examined the potential costs of having spines using three different methods. ... -
The hydrodynamic costs of spination in zoea
(Friday Harbor Laboratories, 2014-10)The benefits of spines in zoea and other crustaceans have been documented in numerous studies as a form of anti-‐predatory behavior. This study examined the potential costs of having spines using three different methods. ...