Browsing Friday Harbor Laboratories Student Research Papers by Title
Now showing items 352-370 of 707
-
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. ... -
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. ... -
Impact of elevated pCO2 on heterotrophic bacterioplankton: a mesocosm experiment
(Friday Harbor Laboratories, 2013-06)The rapid rise in anthropogenic atmospheric carbon dioxide (CO2) and the subsequent acidification of the world oceans has increased the need to determine if these changes will seriously and adversely impact the microbial ... -
Impact of Time and Tidal Current Speed on Alcid Abundance and Behavior in San Juan Channel
(2023)Understanding daily abundance and behavior of animals is an important part of conservation research, as changes in these factors cannot be considered without a baseline to reference. Our study is focused on providing ... -
Impacts of Dam Removal on the Macrobenthos of the Elwha River Delta
(Friday Harbor Laboratories, 2012-06)For almost a century, the Elwha River has been constrained by the Elwha and Glines Canyon dams, which have severely restricted the transport of fine sediment downriver. The dams are currently undergoing removal; it is ... -
Impacts of Dam Removal on the Macrobenthos of the Elwha River Delta
(2012)For almost a century, the Elwha River has been constrained by the Elwha and Glines Canyon dams, which have severely restricted the transport of fine sediment downriver. The dams are currently undergoing removal; it is ... -
Impacts of low salinity on settlement by competent larvae of Pycnopodia helianthoides
(2023)Freshwater input from terrestrial environments likely impact much of the biogeographic range of the sunflower sea star Pycnopodia helianthoides, particularly its planktonic larvae. Larvae that encounter these water masses ... -
Impacts of Ocean Acidification on the sand dollar, Dendraster excentricus Fertilization Success and Early Development
(Friday Harbor Laboratories, 2012-10)Ocean acidification (OA), a result of increased atmospheric CO2, is predicted to decrease the surface ocean pH by a value of 0.4 units by the year 2100. Decreases in pH have been shown to cause deleterious effects on ... -
Impacts of physical processes and sediment sources on the grain-size distribution of the Elwha River delta
(Friday Harbor Laboratories, 2012-06)Grain-size distribution, one of important parameters reflecting sediment sources, transportation, and deposition, helps people understand and predict shoreline and bathymetric changes. For this study, wave-orbital velocity ... -
Impacts of physical processes and sediment sources on the grain-size distribution of the Elwha River delta
(2012)Grain-size distribution, one of important parameters reflecting sediment sources, transportation, and deposition, helps people understand and predict shoreline and bathymetric changes. For this study, wave-orbital velocity ... -
Impacts of Sea Star Wasting Syndrome on Larval Pisaster ochraceus: a pilot study on pathogen exposure
(Friday Harbor Laboratories, 2014-10)A recent outbreak of sea star wasting syndrome (SSWS) along the U.S. West coast has decimated populations of many intertidal and subtidal sea star species. If populations are unable to recover quickly, SSWS is likely to ...