Publications
"Using High Throughput Genomic Sequencing to Predict Ecological Impacts on Sea Turtle Populations" |
ABSTRACT
Marine turtles are long-lived, migratory vertebrates that encounter a variety of human and natural stressors throughout their lives. Understanding the biology and threats of these animals is challenging because they are hard to observe, and can migrate across whole ocean basins. Minimally invasive sampling techniques (e.g., blood samples) allow us to learn about their physiology, genetics, and the environmental conditions they have experienced. In this project, we developed a novel method to extract the RNA from whole green and loggerhead turtle blood from animals inhabiting a variety of sites across the Pacific Ocean. Some habitats are more pristine, while others have been heavily altered by humans. These samples will be used for high throughput genomic sequencing to provide data on the gene expression, genetic relatedness, and functional genomics of these animals. First, we will look at the genes that are up-regulated in animals inhabiting polluted environments to understand contaminant impacts on marine turtle health. Secondly, we will identify single nucleotide polymorphisms that will be used as tools in future studies to examine fine-scale structure and adaptive variation in future studies. We then pair these data with other data from our research group on sex, size, migration, and foraging ecology. These approaches allow us to generate large amounts of data that can be used for a variety of scientific and conservation studies from small samples. This allows us to sample the animals while having little to no impact, and to monitor health and physiology in live populations over time. This will provide a better understanding of threats to sea turtle populations that can be used by both conservation biologists and ecologists in protecting habitats of sea turtles worldwide. |
"On-Ice Arctic Sea Ice Thickness Measurements from 1894 to 2011" |
ABSTRACT
NOAA@NSIDC is pleased to announce the release of On-Ice Arctic Sea Ice Thickness Measurements by Auger, Core, and Electromagnetic Induction, From the Fram Expedition Onward. In addition to sea ice thickness, the data set provides sea ice freeboard and snow depth on sea ice from in situ measurements taken primarily using auger, coring devices, and electromagnetic (EM) sounding. When available, ice type is also included. The archive was compiled from 44 different expeditions starting with measurements from the Fram Expedition in 1894 and 1895, then to the Maud Expedition from 1922 through 1924, and continuing forward in time to observations from 2011. The figures below give an idea of the distribution of the measurements through time and space. For about half of the more than 55,000 points at which measurements were made, the ice type is unspecified. Of the remainder, about 10% are first year ice and about 40% are multiyear ice. |
High Tech High Ichthyology Program
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High Tech High's after school Ichthyology Program has been featured by the San Diego County Office of Education as an exemplar after school program. This program enables students to have opportunities to explore science and technology through hands-on project-based learning, while simultaneously exposing students to career pathways in the fields of marine science, biology, animal husbandry, and aquaculture. |
JOIDES Resolution Onboard Outreach Officer Exp. 399 April - June 2023
Albert Einstein Distinguished Educator Fellowship 2021-2022
Fellowship Placement: Library of Congress
The Albert Einstein Distinguished Educator Fellowship (AEF) Program provides a unique opportunity for accomplished K-12 educators in the fields of science, technology, engineering, and mathematics (STEM) to serve in the national education arena. Fellows spend eleven months working in Federal agencies or in U.S. Congressional offices, applying their extensive knowledge and classroom experiences to national education program and/or education policy efforts. At the end of the Fellowship, educators are equipped with access to a national network of education leaders and programs, a better understanding of the challenges and possibilities in STEM education, and a renewed passion for teaching, ready to make significant contributions to the educational community. |
PolarTREC Expedition 2017-2018
Media Highlights
Blue Marble Space: End of an EraGuest Contributor – Dr. Lesley Anderson
Barbara “Bobbie” John walked up the gangway with intentional steps, recognizing that this was the very last time she would ever board the JOIDES Resolution. After three previous expeditions on the JR, Bobbie found herself one of 20 international scientists embarking one more time on the drilling vessel. This particular expedition is very special to her, because she was onboard the ship that first discovered the Lost City at Atlantis Massif. In fact, she was the person that first recognized this unique geologic feature on the sea floor. |
Students Build StoryMapsCamaraderie at 2022 Arctic Data Stories Workshop. “I really enjoyed working with a diverse team of people—our different experiences were all very valuable in coming together with a story,” said participant Lesley Anderson, Albert Einstein Distinguished Educator Fellow at the Library of Congress. “I loved being able to be around other people who love the Arctic!”
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Five Questions with Lesley Anderson
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Educating Future Generations
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Robert Noyce Teaching Scholarship Program
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100kin10 Project Team
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Teachings from the South Pole
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Teacher, Researcher, Explorer
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IceCube Neutrino Experiment Project
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PolarTREC
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Sharklet Technology Lesson Adaptation
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Bringing the Classroom to the Ocean
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California Teachers' Summit
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