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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

Effects of temperature, salinity, feeding, substrate, and storage on the setting and survival of commercially-reared eyed larvae of the Pacific oyster, Crassostrea gigas /

Carlson, Barbara Louise Kern. January 1981 (has links)
Thesis (M.S.)--Oregon State University, 1982. / Typescript (photocopy). Includes bibliographical references (leaves 83-90). Also available online.

A mendelian study of Crassostrea gigas

Smoker, Janet Van Dusen 30 July 1976 (has links)
The genotype frequencies of one-year-old oyster spat (Crassostrea gigas) from parents of known genotype, are compared to the frequencies expected with Mendelian inheritance. The genotypes are characterized at three enzyme loci, Aspartate amino-transferase (AAT), Phosphohexose isomerase (PHI) and Leucine aminopeptidase (LAP), and a general protein locus. In this study expression of these loci as histochemically stained patterns on a gel following electrophoresis is controlled by two codominant alleles at each locus. Frequencies of the genotypes at all four loci, in all offspring groups investigated, are not statistically different from those expected with Mendelian inheritance, supporting the hypothesis that this is the method of inheritance. It is further concluded that there are no large amounts of selection connected with any of these loci. An additional observation, that there is no statistical difference between genotype ratios of siblings in two different growing areas, is discussed in terms of G. Williams' (1975) "elm-oyster" model. It is suggested that the search for selection at single loci is probably not a generally useful one for the oyster breeder. / Graduation date: 1977

Trace elements in oyster biodeposits

Nishikawa-Kinomura, Katsuo A 28 September 1977 (has links)
Graduation date: 1978

Identification and characterisation of two haplosporidian parasites of oysters in north Western Australia /

Bearham, Douglas. January 2008 (has links)
Thesis (Ph.D.)--Murdoch University, 2008. / Thesis submitted to the Faculty of Health Sciences. Includes bibliographical references (p. 200-209)

Studies on the food of the oyster /

Martin, G. W. January 1922 (has links)
Thesis (Ph. D.)--University of Chicago, Dept. of Botany, 1922. / Includes bibliographical references.

Distribution and impact of the oyster parasite Bonamia ostreae in Maine, and its detection using DNA probes /

Carnegie, Ryan B., January 2000 (has links)
Thesis (Ph. D.) in Marine Biology--University of Maine, 2000. / Includes vita. Includes bibliographical references (leaves 76-85).

The ecology and energetics of Saccostrea cucullata (Born) : (Bivalvia : Ostreidae) in Hong Kong /

Chiu, May-chun, Helen. January 1997 (has links)
Thesis (Ph. D.)--University of Hong Kong, 1997. / Includes bibliographical references (leaf 202-256).

A study of the yellow discoloration of canned oysters

Shockey, Charles Floyd 13 March 1940 (has links)
The yellow discoloration in canned oysters, which appeared after several months of storage, has been proven to be due to carotenoid pigments which were contained in the liver of the oyster. It was found after making carbon disulfide extractions of the liver and of the discolored tissue from canned oysters obtained from four different areas that the yellow pigments in the discolored tissue and in the livers of these oysters were identical. This conclusion was drawn following ten separate chromatographic analyses of these extracts. Analysis with the spectrograph further showed that the pigments responsible for the major portion of the discoloration was carotene. The absorption bands of this pigment in a carbon disulfide solution were found to lie at 521 and 485 millimicrons. These lines corresponded to those for beta carotene. It was also observed that these carotenoid pigments from the liver diffused slowly through the surrounding tissue and that the time required for the color to reach the surface of the oyster depended upon the thickness of the tissue. In a preliminary test it was also found that higher temperatures in storage tended to hasten the discoloration while samples held at zero degree Fahrenheit inhibited the diffusion of the color to the surface. / Graduation date: 1940

The internal defense mechanisms of the oyster, Crassostrea virginica, in response to the cestode Tylocephalem sp

Rifkin, Erik January 1969 (has links)
Typescript. / Bibliography: leaves 136-161. / xiv, 161 l illus

Interspecific interactions in oyster reef communities : the effect of established fauna on oyster larval recruitment /

Barnes, Brian B., January 2008 (has links) (PDF)
Thesis (M.Sc.)--College of William and Mary. / Vita. Includes bibliographical references. Also available via the World Wide Web.

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