Showing 1101 - 1110 of 2039 Items

Bowdoin Alumnus Volume 5 (1930-1931)

Date: 1931-01-01

Access: Open access



Martha Diamond

Date: 1988-01-01

Access: Open access

Exhibition held at Bowdoin College Museum of Art, January 29 - March 24, 1988


Report of the President, Bowdoin College 1900-1901

Date: 1901-01-01

Access: Open access



Bowdoin Alumnus Volume 38 (1963-1964)

Date: 1964-01-01

Access: Open access



Methods for Modernism: American Art, 1876-1925

Date: 2010-01-01

Creator: Diana K. Tuite

Linda J. Docherty

Access: Open access



Reflections questionnaire response by Anonymous on April 1, 2021

Date: 2021-01-01

Creator: Anonymous

Access: Open access

This is a response to the Documenting Bowdoin & COVID-19 Reflections Questionnaire. The questionnaire was created in March 2021 by staff of Bowdoin's George J. Mitchell Department of Special Collections & Archives. The author is from the class of 2022.


Reflections questionnaire response by Anonymous on March 31, 2021

Date: 2021-01-01

Creator: Anonymous

Access: Open access

This is a response to the Documenting Bowdoin & COVID-19 Reflections Questionnaire. The questionnaire was created in March 2021 by staff of Bowdoin's George J. Mitchell Department of Special Collections & Archives. Author is class of 2024.


Using data from the LISST-100 to recreate phytoplankton size distribution and processes in Harpswell Sound, Maine

Date: 2014-08-01

Creator: Schuyler Nardelli

Access: Open access

Phytoplankton are the simple single-celled photosynthesizers that live in the ocean and form the base of the food chain. Cell size is a basic proxy for physiological rates as well as ecosystem structure. Thus, cell size can be used in a model framework to track changing environmental conditions that could potentially lead to harmful algal blooms (HABs, aka ā€œred tidesā€)ā€”events that can be detrimental to human health, marine life, and fisheries. HABs occur when a single algae (phytoplankton) species either grows unconstrained to a concentration such that it becomes toxic or causes low oxygen concentration in the water. In typical estuaries, less dense freshwater flows towards the ocean, and denser salty seawater flows into the estuary in the subsurface. However, Harpswell Sound is a reverse estuary that receives its freshwater input at its mouth from the upstream Kennebec River. This yields upstream surface low salinity flow and downstream deep high salinity flow. This rare dynamic allows phytoplankton located in the surface of seawater to be retained in the sound in conditions conducive to high growth and HABs, and can be used as a warning for conditions throughout the Gulf of Maine. To study the temporal and spatial dynamics of phytoplankton in the sound, we used the LISST-100, which uses light scattering properties to collect continuous in-situ water column observations of particle concentrations and size distributions. Although the LISST-100 was built to measure sediment size with a spherical shape, studies have been conducted that show it can accurately describe a diverse range of phytoplankton shapes and sizes, provided the population has sufficient size differences and is fairly concentrated, conditions found in Harpswell Sound. Weekly profiles of the water column were collected at the Bowdoin Buoy from 5/21/14-6/18/14, as well as a 20-day continuous time series collected at Bowdoinā€™s Coastal Studies Center dock from 5/30/14-6/18/14 along with supplementary oceanographic data. We determined that semi-diurnal tidal fluctuations are sufficient to move water masses past the buoy and dock with each tide, thereby connecting them. Phytoplankton were found to be in the 3-50 micron size range, with a peak diameter of approximately 7 microns. Additionally, three independent phytoplankton blooms were observed over the course of the 20-day time series as different water masses flowed through the sound. They were sourced in the oceanic water masses found under the freshened surface layer. Over the five-week period the populations gradually surfaced with their water mass as the overlying freshwater dissipated in the absence of rainfall. The LISST-100 served as a useful tool for determining phytoplankton distribution and dynamics within Harpswell Sound, and with further research there is great potential to continue to increase proficiency with the instrument in order to better understand phytoplankton dynamics and harmful algal blooms. Final Report of research funded by the Rusack Coastal Studies Fellowship.


Bowdoin College Catalogue (1882-1883)

Date: 1883-01-01

Access: Open access



Certain Uncertainties: Chaos and the Human Experience

Date: 1996-01-01

Creator: Justin G. Schuetz

Access: Open access

Accompanies an exhibition held at the Bowdoin College Museum of Art from April 17 through June 2, 1996. "This brochure is published with funding from the Andrew W. Mellon Foundation."--Colophon