Nekton use and growth in three brackish marsh pond microhabitats

With continued marsh break-up and loss in Louisiana, small interior ponds are created, increasing areas of shallow water habitats. These shallow water habitats are potential sites for submerged aquatic vegetation (SAV) establishment. It is important to characterize nekton community composition, density, biomass, and growth within brackish marsh pond microhabitats because SAV is often cited as essential fish habitat (EFH). Three microhabitat types were investigated: (1) inner-pond SAV (\u3e 1 m from edge); (2) near marsh-edge SAV (\u3c 1 m from edge) and (3) nonvegetated bottom. We tested the null hypotheses that nekton community composition, density, and biomass were not related to microhabitat type and characteristics. Ninety-six quantitative samples were taken with a 1-m2 throw trap between September 2001 and July 2002. The two vegetated microhabitats were characterized by monotypic stands of widgeon grass Ruppia maritima and contained similar biomass. Nekton community composition, density, and biomass did not differ between vegetated microhabitats, but differed significantly from the nonvegetated microhabitat (p \u3c 0.0001). Therefore, SAV appears to be a dominant factor influencing nekton distribution within ponds. Submerged aquatic vegetation beds may also provide nekton with better growth environments by providing better quality or quantities of food for nekton than nonvegetated habitats. We also tested the null hypothesis that nekton growth was similar between vegetated and nonvegetated habitat types to determine if SAV provided a greater food resource than nonvegetated bottom. An in situ field experiment was conducted that compared growth rates of Atlantic croaker Micropogonias undulatus between vegetated and nonvegetated habitats to investigate the role of SAV in supporting nekton growth. We detected no statistically significant difference in nekton growth between vegetated and nonvegetated habitats (p = 0.125)

A Monographic Study Of Special Groups Of The Water Molds Ii. Leptomitaceae And Pythiomorphaceae

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/142168/1/ajb204849.pd

Optimizing Land Use and Water Supply Planning: A Path to Sustainability?

The rise of the environmental movement and the growing public embrace of ecological values roughly coincided with the end of the dambuilding era. By the 1970s, most of the good sites for dams had already been taken, and those that remained, such as California’s North Coast rivers, were increasingly valued as natural and recreational resources that should be permanently protected. At the same time, California’s population continued to swell, from under 20 million in 1970 to nearly 38 million today. How did these trends affect water supply development in California? Among other impacts, the average time a major water supply project took from conception to construction more than doubled. Before the enactment of the major environmental statutes of the 1970s, project planning was far simpler, because the adverse impacts could largely be overlooked. With the advent of environmental impact reports and public involvement, planning water projects became much more complex and time-consuming. Moreover, the projects that succeeded in getting built added progressively smaller increments of storage to the state’s supply, with the hurdles of increasing complexity and expense. As water supply development began to slow down, the prospects for serious rationing became more real

Old Time Quiet in a Breathless Age: Faith, Virtue, and the Strength of the Social Gospel at Trinity-Pawling School

“Old Time Quiet in a Breathless Age: Faith, Virtue, and the Strength of the Social Gospel at Trinity-Pawling School” is a Senior Project by Donald Evan Kanouse submitted to The Division of Social Studies of Bard College. This project presents All Saints’ Chapel, located on the Trinity-Pawling School campus in Pawling, New York, as a transhistorical symbol of the School’s religion and of its core ideology. Its chapters demonstrate these claims by using both ethnographic and archival research to delve into conceptions of faith, virtue, and masculinity as they were once defined by the School’s founder, Dr. Frederick Gamage, and his contemporaries. The project’s central objective is to begin the process of reconciling the campus Chapel - a fixture that now appears strikingly out of place to some - with Trinity-Pawling’s present culture. Ultimately, it suggests that the Chapel remains relevant today, perhaps more so now than ever as both the School and its students adapt to new problems and influences

Common Tensions

Based in the hilly, unglaciated Driftless Area of the upper Midwest of the United States, Common/Place is a self-organized, off-the-grid platform for ecological resilience, cultural inquiry, and land-based pedagogy. The rustic setting offers a space to examine how such rural spaces have been both produced by and mobilized within the linked projects of capitalist extraction and settler colonial extermination and to connect and grow the nodes of resistance always present within such systems. Our primary project up to this point has been a series of experimental seminars assembling artists, writers, and cultural workers to learn from and with naturalists, historians, farmers, citizens of the Indigenous Ho-Chunk Nation, and the land itself. This grounded creative research and pedagogy generates a network of informal relationships that connect the urban and rural to break through the present moment of political retrenchment and set the stage for social and ecological cooperation in the face of the climate chaos to come. This practice-based, epistolary essay reflects on the first four years of Common/Place, highlighting constitutive tensions and continued negotiations around property, relationships, ecology, and time—individual, generational, and geological—that can quickly become sedimented in infrastructure and no longer open to question.&nbsp

The Effectiveness of a Sodium Monofluorophosphate Dentifrice on Dental Hypersensitivity

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/141672/1/jper0038.pd