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Full-Text Articles in Life Sciences

An Evaluation Of An Avian Diversity Model, Tansy Lynn Wagner May 1999

An Evaluation Of An Avian Diversity Model, Tansy Lynn Wagner

Honors College

Diversity exists at all temporal and spatial scales but has been studied largely at the community level because of the limited availability of regional or nation-wide data. In the U.S. both the Breeding Bird Survey (BBS) and the Breeding Bird Census (BBC) provide large-scale observations of avian populations over periods of decades and offer a potential source of information. A large-scale model of avian diversity based on the BBS has been developed by O'Connor et. al.(1996). The BBC serves as a source for independently obtained species richness estimates used to evaluate the ability of the model to generate corresponding predictions. …


Use Of Antibacterial Agents To Elucidate The Etiology Of Juvenile Oyster Disease (Jod) In Crassostrea Virginica And Numerical Dominance Of An Α- Proteobacterium In Jod-Affected Animals, Katherine J. Boettcher, Bruce J. Barber, John T. Singer Jan 1999

Use Of Antibacterial Agents To Elucidate The Etiology Of Juvenile Oyster Disease (Jod) In Crassostrea Virginica And Numerical Dominance Of An Α- Proteobacterium In Jod-Affected Animals, Katherine J. Boettcher, Bruce J. Barber, John T. Singer

Biology and Ecology Faculty Scholarship

Since 1988, juvenile oyster disease (JOD) has resulted in high seasonal losses of cultured Eastern oysters (Crassostrea virginica) in the Northeast. Although the cause of JOD remains unknown, most evidence is consistent with either a bacterial or a protistan etiology. For the purpose of discerning between these hypotheses, the antibacterial antibiotics norfloxacin and sulfadimethoxine-ormetoprim (Romet-B) were tested for the ability to delay the onset of JOD mortality and/or reduce the JOD mortality of cultured juvenile C. virginica. Hatchery-produced C. virginica seed were exposed in triplicate groups of 3,000 animals each to either norfloxacin, sulfadimethoxine-ormetoprim, or filter-sterilized seawater (FSSW) and deployed …


Multiplex Reverse Transcriptase Pcr Assay For Simultaneous Detection Of Three Fish Viruses, K. Williams, S. Blake, A. Sweeney, J. T. Singer, B. L. Nicholson Jan 1999

Multiplex Reverse Transcriptase Pcr Assay For Simultaneous Detection Of Three Fish Viruses, K. Williams, S. Blake, A. Sweeney, J. T. Singer, B. L. Nicholson

Biology and Ecology Faculty Scholarship

A multiplex reverse transcriptase (RT)-PCR assay was developed for the simultaneous detection of three different fish viruses: infectious pancreatic necrosis virus (IPNV), infectious hematopoietic necrosis virus (IHNV), and viral hemorrhagic septicemia virus (VHSV). The sensitivity levels of the multiplex RT-PCR assay were 100, 1, and 32 50% tissue culture infective doses/ml for IPNV, IHNV, and VHSV, respectively.


Measuring Maine’S Marine Economy, Brian Roach, Jonathan Rubin, Charles Morrris Jan 1999

Measuring Maine’S Marine Economy, Brian Roach, Jonathan Rubin, Charles Morrris

Maine Policy Review

Even though Maine’s new license plate no longer features the lobster, the ocean remains central to Maine’s identity and to its economy. As the authors point out, Maine has more than 4,500 miles of coastline and more than 4,600 islands over one acre in size. For many who live here, their way of life is tied to the sea; for many who visit Maine, their stay is tied to the sea. Despite such prominence, it has been difficult to accurately assess the importance of Maine’s marine economy. In part, this is because there clear definition of a marine economy is …