Browsing Friday Harbor Laboratories Student Research Papers by Title
Now showing items 341-360 of 705
-
“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 SHARKS ARE VULNERABLE PREY: KINEMATICS OF ESCAPE RESPONSES IN PACIFIC SPINY DOGFISH (SQUALUS SUCKLEYI) DURING MECHANICAL AND ELECTRICAL STIMULI.
(2019)The kinematics and characteristics of escape responses have been heavily studied in teleost species. With some elasmobranchs being seen as mesopredators, escape responses do occur within this category of animals, thereby ... -
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 temperature affects nudibranch partial predation of Dendrobeania lichenoides bryozoan
(2022-12-12)Bryozoan colony structure (Dendrobeania lichenoides) of degenerated parts known as brow bodies helps determine the grazing pattern and partial predation by nudibranchs (Dirona albolineata and Dirona pellucida). Although ... -
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. ... -
I have my notochord cells, but where did I leave my tail: A notochord gene expression analysis of tailed, tailless and hybrid Molgulids.
(Friday Harbor Labs, 2011-09)In the molgulid clade of ascidians several species have individually evolved tail loss during their larval stage of development. The notochord, one of the key features of chordates, is found in the center of the tail in ... -
Identification and Distribution of a Bone-eating Marine Worm (Annelida, Osedax)
(Friday Harbor Laboratories, 2014-08)Ephemeral reducing environments such as hydrothermal vents and whale falls create oases of chemosynthetic primary production in the nutrient poor deep sea. The polychaete family Siboglinidae has adapted to occupy these ... -
Identification and Distribution of a Bone-eating Marine Worm (Annelida, Osedax)
(Friday Harbor Laboratories, 2014-08)Ephemeral reducing environments such as hydrothermal vents and whale falls create oases of chemosynthetic primary production in the nutrient poor deep sea. The polychaete family Siboglinidae has adapted to occupy these ... -
Identification and Distribution of Zooplankton in False Bay Estuary and Beaverton Cove, San Juan Island WA USA
(2021)Plankton form the base level food chain in all marine systems. Characterizing the diversity and abundance of plankton in a location can reveal the unique ecology of a system. Zooplankton were identified and enumerated in ... -
Identification and Expression of TGF-β Smads in the ctenophore Pleurobranchia bachei
(Friday Harbor Laboratories, 2013-06)The TGF-β superfamily of signaling pathways is key in regulating embryonic development (Heldin et al. 2009). It is known to be present in all metazoan lineages (Huminiecki 2009). Studying this pathway in the ctenophore ... -
Identification of bacterial species growing on aged Nereocystis luetkeana and Agarum fimbriatum. in the San Juan Channel
(Friday Harbor Laboratories, 2013-06)Do bacterial communities change as algae decays? If so, how does it change? Bacteria form many different types of relationships with algae and this study observed the effects of algal decay on bacterial abundance and ... -
Identifying changes in activity level in Hemigrapsus nudus under daylight and night conditions
(2021)Mobile predators in the intertidal zone play a key role in the abundances and distributions of their prey. Hemigrapsus nudus is an ecological generalist found in the intertidal that primarily feeds on green algae. With ... -
Idotea wosnesenskii distribution and spatial preference in the intertidal areas of the south and east side of San Juan Island
(2022-05)Idotea wosnesenskii is one of the common isopod species observed on the rocky shores of San Juan Island. This highly mobile isopod is known to have a wide geographical distribution from intertidal to subtidal areas. It ... -
The impact of contaminated pilings on nudibranchs at the docks of Friday Harbor
(Friday Harbor Laboratories, 2014-06)Docks in the Friday Harbor Island have been observed to have many nudibranchs present on them. One hypothesis for this is the creosote, a chemical used to help preserve the wood from wear, is attracting them to the pilings. ...