Browsing Student Research Papers by Title
Now showing items 302-321 of 1052
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The effect of pH on natural settlement and metamorphosis in the invasive limpet, Crepidula fornicata
(Friday Harbor Laboratories, 2015-09)The average pH of ocean surface waters has dropped by about 30%, due to absorption of anthropogenic CO2 emissions. In the past decade, much research has been conducted examining the effect of this “ocean acidification” on ... -
The effect of predatory chaetognaths on zooplankton assemblages at the start of the spring bloom in Glacier Bay, Alaska, U.S.A.
(School of Oceanography, University of Washington, 2008-06-19)Galcier Bay is a suitable ecosystem for chaetognaths with their main prey being the relatively abundant Calanus copepods. Evidence supports a separate nursery habitat for juvenile chaetognaths. A significant negative ... -
The effect of shore armoring on beach slope in mixed sand-and-gravel beaches
(2013-06)[author abstract] This study is a comparison of beach orientation, fetch length, and seawall toe height for 31 pairs of armored/unarmored, mixed sand-and-gravel beaches in southern Puget Sound. Beach profiles from top ... -
The effectiveness of durophagous tooth morphologies when crushing Mytilus and Nucella shells
(2011)Teeth are the interface between an organism and its prey, and can be used to infer an organism’s diet. However, little is known the interactions between tooth morphology and prey items in durophagous systems. To begin to ... -
The effectiveness of durophagous tooth morphologies when crushing Mytilus and Nucella shells
(Friday Harbor Labs, 2011-12)Teeth are the interface between an organism and its prey, and can be used to infer an organism’s diet. However, little is known the interactions between tooth morphology and prey items in durophagous systems. To begin to ... -
Effects of acute salinity stress on embryos of the sacoglossan sea slug, Alderia modesta
(Friday Harbor Laboratories, 2014-10)Intertidal organisms face highly variable environments with a multitude of stresses placed on them. Freshwater input from rain and run off is one such stress. Salinity changes have been shown to have adverse developmental ... -
Effects of acute salinity stress on embryos of the sacoglossan sea slug, Alderia modesta
(Friday Harbor Laboratories, 2014-08)Intertidal organisms face highly variable environments with a multitude of stresses placed on them. Freshwater input from rain and run off is one such stress. Salinity changes have been shown to have adverse developmental ... -
Effects of Boating Disturbance on Seabird Abundance and Flushing Behavior in the San Juan Islands
(Friday Harbor Laboratories, 2014-08)Boating traffic can disturb and negatively affect normal behaviors of marine birds, including foraging. Surveys of seabirds were performed on two vessel routes with different types of boat traffic in the San Juan Islands, ... -
Effects of Boating Disturbance on Seabird Abundance and Flushing Behavior in the San Juan Islands
(Friday Harbor Laboratories, 2014-08)Boating traffic can disturb and negatively affect normal behaviors of marine birds, including foraging. Surveys of seabirds were performed on two vessel routes with different types of boat traffic in the San Juan Islands, ... -
Effects Of Dam Removal On Macrobenthos In The Elwha Nearshore
(Friday Harbor Laboratories, 2013-06)The Elwha River dam removal project is expected to deliver fine grained sediment to the Elwha nearshore environment, thus potentially changing the substrate and affecting the macrobenthic invertebrate that inhabit it. This ... -
Effects of depth on diet of Chlamys hastata and Chlamys rubida
(Friday Harbor Labs, 2011-05)Scallops are semi-mobile filter feeding bivalves; an important member of their ecosystems due to their ecological contributions and importance as bioindicators. Despite their importance, little is known about their diet ... -
Effects of diet, temperature, salinity and season on wasting disease in ecologically important predatory sea stars
(Friday Harbor Laboratories, 2014-06)This study investigates sea star wasting disease seen in ecologically important predatory sea stars on intertidal coasts of San Juan Island, Lopez Island and Orcas Island (Washington, United States). Three experiments were ... -
Effects of diet, temperature, salinity and season on wasting disease in ecologically important predatory sea stars
(Friday Harbor Laboratories, 2014-06-30)This study investigates sea star wasting disease seen in ecologically important predatory sea stars on intertidal coasts of San Juan Island, Lopez Island and Orcas Island (Washington, United States). Three experiments were ... -
The Effects of Disturbances on Harbor Seals (Phoca vitulina) on a Haul- Out site Off Yellow Island, Washington
(Friday Harbor Laboratories, 2014-08)Human induced disturbances affect harbor seals (Phoca vitulina) hauled-out off Yellow Island, WA. Disturbances, in this study, include sailboats, motorboats, wake height, and distance of boats to haul-out sites (0 to 200 ... -
The Effects of Disturbances on Harbor Seals (Phoca vitulina) on a Haul- Out site Off Yellow Island, Washington
(Friday Harbor Laboratories, 2014-08)Human induced disturbances affect harbor seals (Phoca vitulina) hauled-out off Yellow Island, WA. Disturbances, in this study, include sailboats, motorboats, wake height, and distance of boats to haul-out sites (0 to 200 ... -
Effects of Flow Rate on Balanus glandula Feeding Rates
(2011)Environmental changes can affect the abundance and community structure of various intertidal organisms. Water flow rate is a determining factor in food abundance and settling rate of food particles. For this study, we ... -
Effects of Flow Rate on Balanus glandula Feeding Rates
(Friday Harbor Labs, 2011-05)Environmental changes can affect the abundance and community structure of various intertidal organisms. Water flow rate is a determining factor in food abundance and settling rate of food particles. For this study, we ... -
The effects of fluctuating salinity on protein profiles in echinoderm larvae of the species Dendraster excentricus and Pisaster ochraceus
(Friday Harbor Laboratories, 2013-12)Salinity fluctuations are common in the Salish Sea of the Pacific Northwest and are expected to become more common as global warming continues to increase the rate of glacial melting. The salinity can drop down to as low ... -
Effects of fluvial and marine processes on nearshore suspended sediment concentrations off the Elwha River
(2013-06)[author abstract] The goal of this project was to determine whether river or marine processes had a stronger effect on the suspended-sediment content (SSC) of water off the mouth of the Elwha River. This was done in ... -
Effects of increased nitrate concentrations on Zostera marina health and prevalence of Labyrinthula zosterae
(Friday Harbor Laboratories, 2014-08)Seagrasses are facing a global population decline and bottom cover has grown sparser in many locations. Garrison Bay, in the San Juan Archipelago, was the site of a complete loss of eelgrass (Zostera marina) in 2003, and ...