Intern Home Institution Major(s) Project Mentor
Carrie Antolik Eckerd College - St. Petersburg, Florida Biology

Title: Diversity and differentiation of mtDNA among humpback whales (Megaptera novaeangliae) on both the tropical feeding grounds and the Antarctic feeding Areas of the South Pacific Ocean

Summary: Throughout the 19th century humpback whales of the south Pacific (SP) were heavily exploited by commercial whaling. It is important to understand the degree of connectivity between these small south Pacific breeding populations and their associated feeding grounds in order to better understand the dynamics of recovery of humpback whales in this region. 800bp of the mitochondrial control region was sequenced from previously collected SP samples (2003 to 2005) and added to existing sequence data for the breeding grounds (1994-2002) and Antarctica (1994-2002). These sequences were analyzed to examine genetic diversity and differentiation within individual feeding and breeding ground populations. If time permits genetic connections between feeding and breeding grounds will also be investigated.

Scott Baker, Associate Professor, Fisheries and Wildlife
Casey Benkwitt Bowdoin College - Brunswick, Maine

Environmental Studies

Sociology

(biology minor)

Title: Gastric Evacuation and Daily Ration of Juvenile Chinook Salmon in Coastal Waters

Summary: This research involved conducting laboratory studies on the gastric emptying time of juvenile salmon fed known amounts of food at 3 different temperatures. This was combined with field measurements of stomach fullness taken throughout the day to estimate a daily ration for these fish that can be used to examine food limitation in the ocean during the first few critical months at sea.

Ric Brodeur, Professor, Oceanography (Courtesy) NOAA/NW/NMFS)
Craig Brauer Illinois Wesleyan University - Bloomington, Illinois Biology

Title: Soliciting Sex for Bopyrid Taxonomy

Summary: Bopyrid isopod crustaceans parasitize decapod crustacean hosts and produce pelagic larvae.  While the reproductive stages of nearly all bopyrid isopod crustaceans of the northeastern Pacific have been described (Markham 1992) the pelagic larval dispersal stages have remained unknown.  Complications of either culturing these parasites through their entire life cycles or associating the pelagic stages with the adults, in situ, has largely precluded descriptions of the larval stages anywhere in the world.  We report epicaridan and cryptoniscan stages of Ione cornuta Bate, 1864, and Orthione griffenis Markham, 2004 that we identified by epicarids by direct association or by sexual attraction. 

John Chapman, Research Associate, Department of Fisheries and Wildlife
Jennifer Brookes University of Portland - Portland, Oregon

Biochemistry

Biology

Title: Spectrometric Determination of Microbial Cell Numbers in Water Samples

Summary: My project included using the ZAPS MP.1 photo-spectrometer to test for the microbial cells in water. The instrument was able to make real time measurements of running water. The hope is that if the instrument works with microbes there will be industrial applications to use such an instrument to bypass many of the current limitations for water testing.

Rick Colwell, Professor, College of Oceanic and Atmospheric Sciences
Leah Carver University of Massachusetts -Amherst - Amherst, Massachusetts

Geology

Earth Systems

Title: Analysis of Northeast Pacific cores EW9504-12PC and EW9504-13PC using 40Ar-39Ar dating, paleomagnetics, CaCO3 extraction, and radiolaria marker methods to determine glacial/interglacial influences in response to geographic location

Summary: Ocean cores EW9504-12PC and EW9504-13PC from the Northeast Pacific are uniquely influenced by their geographic location and sediment provenances.  A variety of methods are used to analyze the cores. 40Ar-39Ar dating give bulk sediment ages, paleomagnetics are used to correlate the cores to absolute time, calcium carbonate percentages show glacial and interglacial intervals, and radiolaria assemblages show regional upwelling and serve as time markers as well.  This study shows regional-scale climate variability with a focus on the variety of influences and their complexity on climate change. 

Nick Pisias, Professor, College of Oceanic and Atmospheric Sciences
Daniel Fulton Lawrence University - Appleton, Wisconsin

Physics

Computer Science

Title: Assessing Model Surface and Subsurface Fields on the Oregon Shelf During Spring and Summer Upwelling

Summary: The goal and course of summer work is to create visualizations of model-data and model-model comparisons.  Early work focused on comparisons of Jason SSH and GOES SST data against model SSH and SST respectively, in the period between the January and July 2007, to assess the accuracy of geostrophic current and current front predictions, while current visualizations are exploring model subsurface fields through comparisons with mooring data in 2001.  MATLAB scripts developed for data processing and visualization will be integrated into the automatic prediction system, with the collaboration of COAS personnel (S. Erofeeva), to allow QC in the future 

Alexander Kurapov, Assistant Professor, College of Oceanic and Atmospheric Sciences
Marley Jarvis Carleton College - Northfield, Minnesota Biology

Title: Molt cycle and molting behavior of krill (Euphausia pacifica) off the Oregon Coast

Summary: My research is about the molting behavior of the krill species Euphausia pacifica.  I am staging Euphausia pacifica tails on slides in glycerin, which allows me to see what stage in the 6-day molt cycle the Euphausiid was in when it was sacrificed.  I am using this technique to answer questions about their molting behavior, such as whether or not Euphausia pacifica molt synchronously, as do some other species of krill.  I am also setting up a time series to verify my identification of the correct molt stage by sacrificing euphausiids on 6 hour increments after molting and staging their tails to view the molt stages at known intervals. 

Bill Peterson, Professor, Oceanography (Courtesy); NOAA – Northwest Fisheries Science Center
Aurelie Labbat University of Brest - France ?

Title: Tides Estimated Using an Inverse Model and Comparison with Tide Gauge Data

Summary: The establishment of a tides model using altimetric data from TOPEX/POSEIDON mission has already been made. The software is called OTIS. This study consists in using OTIS to make a model of English Channel tides which will be compared with validation data from tide gauges. A particular focus is an improved modeling of non-linear tides such as M4. 

Gary Egbert, Professor, College of Oceanic and Atmospheric Sciences
Jessie Martinez Carleton College - Northfield, Minnesota Biology

Title: Life on the Edge: Edge Effects of Fish Use of Intertidal Seagrass Fragments

Summary: Examining the use of intertidal habitats including eelgrass and ground cultured oysters by estuarine fish.  Oysters are cultured in areas where eelgrass is present and often viewed as essential fish habitat. This project is a first attempt to see how fish utilize these habitats and whether this practice creates an edge effect on a landscape scale.  Also conducting initial experiments to test the effect of this habitat modification on juvenile English sole predation.

Brett Dumbauld, Research Ecologist, USDA-Agriculture Research Service
Emily Mortazavi University of Arizona - Tucson, Arizona

Geosciences

Geology option

Title: Construction and Development of a Paleomagnetic and Environmental Magnetic Record from NE Pacific Core EW95-12JC

 Summary: Using data from a u-channel cryogenic magnetometer, a magnetic stratigraphy of the EW9504-12PC core can be determined.  This gives a dating technique for this core.  In addition, to a time scale the environmental conditions of sedimentation can be determined using the magnetic mineralogy.

Joe Stoner, Assistant Professor, College of Oceanic and Atmospheric Sciences
Trevor Nace University of North Carolina at Chapel Hill - Chapel Hill, North Carolina Environmental Geology

Title: Are Small Mountainous Streams a Significant Source of Carbon Burial as well as Sediment Transport During Periodic Inundation?

Summary: My research focused on determining the magnitude, depositional extent, and characteristics of particulate organic matter, derived from periodic inundation of small mountainous rivers, on coastal margins.  In addition, I hope to better understand the contribution of these small mountainous rivers on the coastal as well as global carbon cycle.

Miguel Goni, Associate Professor, College of Oceanic and Atmospheric Sciences
Jamila-Dawn Payton University of Arkansas at Pine Bluff - Pine Bluff, Arkansas Fisheries Biology

Title: Use of Wax Beads to Facilitate Bioencapsulation of Oxytetracycline by Artemia nauplii

Summary: Wax spray beads were evaluated as a means of delivering water-soluble antibiotics and therapeutics, such as oxytetracycline, to fish larvae. Fish larvae are unlikely to be able to digest wax beads but Artemia, a commonly used prey for rearing marine fish larvae, have grinding mouth parts that may be able to mechanically break down the wax beads, liberating the antibiotics. Artemia can then be used to deliver the liberated antibiotics to fish larvae.

Chris Langdon, Professor, Fisheries and Wildlife
Elizabeth Prier Bethany College - Lindsborg, Kansas Biology

Title: Photoacclimation in Microalgae

Summary: The purpose of this project was to analyze the physiology of photoautotrophic marine organisms in regard to growth patterns under fluctuating light circumstances.  The goal in this project was to track the growth patterns of one algal group as a function of light fluctuation at different frequencies over a set period of time.  Because photoautotrophic marine organisms are an integral part of the global environment's stability, it is important to understand their physiology and how they adapt to be successful under various light situations.

Ricardo Letelier/Pete Strutton, College of Oceanic and Atmospheric Sciences
Jennifer Rolling University of Maryland - Baltimore, Maryland Physics

Title: Correlation of Sea Surface Temperature in the Gulf Stream Extension with the Northern Hemisphere Annular Mode

Summary: The Northern Hemisphere annual mode (NAM, also known as the Arctic Oscillation) has been identified as the dominant mode of extratropical atmospheric variability in the Northern Hemisphere. Contrary to conventional wisdom suggesting a one-way forcing of midlatitude sea surface temperature (SST) anomalies by atmospheric variability, an empirical correlation has been found to suggest that small changes in SST in the Gulf Stream Extension region of the north Atlantic may precede the NAM on intraseasonal timescales. An investigation of this finding using the same SST dataset as well as a new higher-resolution SST dataset yields similar results but at significantly reduced amplitudes and correlation values.

Dudley Chelton/Eric Maloney, Distinguised Professor, College of Oceanic and Atmospheric Sciences/Assistant Professor, College of Oceanic and Atmospheric Sciences
Zahirah Salahuddin University of Maine - Orono, Maine

Marine Science

Anthropology

Title: Phototaxis and habitat preference of juvenile flatfish

Summary: English sole (Pleuronectes vetulus) are a commercially important species in the North Pacific. As juveniles, they are found in estuaries and coastal embayments. They use these areas for protection from large predators. Also, the abundance of food that is available in these areas enables them to grow much faster. In several laboratory experiments, we are going to simulate different light levels that could be found in the natural environment. Then, we are going to see which light preference they prefer. These applications will enable further studies of Rock sole and Pacific Halibut, two species that co-habitat with the English sole in Alaskan waters. 

Cliff Ryer, Assistant Professor, Fisheries and Wildlife (Courtesy); NOAA – Alaska Fisheries Science Center
Andrew Sherman California State University Channel Islands - Camarillo, California Chemistry

Title: Development of an Autonomous In-Situ Chemical Analyzer for Zinc in Seawater

 Summary: This study will focused on an in-situ analyzer for total dissolved zinc concentrations. A commercially available nitrate analyzer will be modified for this work. Most of the lab time was used to find the optimal conditions in which the instrument can accurately measure zinc concentrations. Variables including pH, temperature, flow rate, sample and reagent volumes, and reagent concentrations will be studied. Because of its minuscule concentration in the ocean, any instrumentation must be extremely sensitive to zinc, and able to function with little to no chemical interference or background noise.

Zanna Chase, Assistant Professor, College of Oceanic and Atmospheric Sciences
Matt Stuckey University of California Berkeley - Berkeley, California Conservation & Resource Studies/ Environmental Economics & Policy

Title: Networks of Geoduck Chronologies: The Potential for Sea Surface Temperature Reconstruction

Summary: Growth increment chronologies developed from the long-lived Pacific geoduck closely track ocean variability.  Geoduck chronologies capture between 50 and 60% of the variance in sea surface temperature (SST) records and can be used to reconstruct SST over the past 100 to 150 years.  However, at some sites in northern BC and AK the relationship between SST and geoduck growth has sharply diminished over the past 20 years.  A similar phenomenon has occurred in tree-ring chronologies at similar latitudes in a phenomenon known as the “divergence effect,” which may be a consequence of climate change.  The geoduck chronologies that show this divergence also have a history of harvesting which coincides with the dissociation of climate-growth relationships.  We developed additional geoduck chronologies at unharvested sites to determine whether the divergence effect is a consequence of human disturbance from harvesting or larger ecosystem shifts due to changing climate in the north Pacific.

Bryan Black, Assistant Professor, OSU/Hatfield Marine Science Center
Jennifer Wolschllager Eckerd College - St. Petersburg, Florida Marine Science (Biology Track)

Title: Evidence of Selection in a Vomeronasal Type 1 Pheromone Receptor Gene in Fishes of the Family Embiotocidae

Summary: Numerous fish species have been shown to use pheromonal communication to mediate mating interactions. In mice, and other mammals, pheromones are received/processed by a large family of vomeronasal type 1 (V1r) pheromone receptor genes. Although fishes do not have a vomeronasal organ, they have recently been shown to possess one or two V1r-like genes, which are thought to have a similar function in fishes as in mammals. I sequenced V1r pheromone receptor genes in 15 of the 23 species in the Family Embiotocidae in order to characterize sequence differences and look for evidence of selection in the genes.

Michael Banks, Professor of Fisheries and Wildlife
Diane Wu Cornell University - Ithaca, New York Chemistry and History

Title: Increasing Power Generation in Benthic Microbial Fuel Cells through Supplementation with Lactate

Summary: An important factor that affects power output from a microbial fuel cell is the electron transfer process at the anode.  In the lab, I built fuel cells and conducted time course experiments to investigate if the electron transfer process is sensitive to the addition of an exogenous electron donor. In addition, I collected and analyzed chemical samples to determine the efficiency of carbon oxidation and how the supplemented fuel cells performed over time.

Clare Reimers, Professor, College of Oceanic and Atmospheric Sciences
Regina Yopack Simmons College - Boston, Massachusetts

Physics

Environmental Science

Title: Comparing Glider Observed Velocities and Geostrophic Currents

Summary: The use of autonomous underwater gliders is a new, cost effective approach to studying oceanic processes.  Coastal gliders are being used to profile the Oregon coast's unique upwelling season as well as profile for such variables as hypoxia and water velocities.  The water velocities measured by the glider are used to help characterize the surface layer of water and it's seasonal variations.  The comparison of observed water velocities by the glider using dead reckoning and modeled geostrophic currents helps to reveal geostrophic influence on the upper Ekman layers whose velocities are mostly effected by atmospheric conditions. 

Kipp Shearman, Assistant Professor, College of Oceanic & Atmospheric Sciences