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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.
21

Fishery ecology of the Pokai artificial reef / Pokai artificial reef

McVey, James Paul January 1970 (has links)
Typescript. / Includes bibliographies. / xvi, 267, [1] l illus., map, graphs, tables
22

Effects of habitat structure on tropical fish assemblages

Garpe, Kajsa January 2007 (has links)
Rates of habitat alteration and degradation are increasing worldwide due to anthropogenic influence. On coral reefs, the loss of live coral reduces structural complexity while facilitating algal increase. In many coastal lagoons seagrass and corals are cleared to make room for cultivated macroalgae. This thesis deals with reef and lagoon habitat structure and how fish assemblage patterns may be related to physical and biological features of the habitat. It further examines assemblage change following habitat disturbance. Four studies on East African coral reefs concluded that both the abundance and species richness of recruit and adult coral reef fish were largely predicted by the presence of live coral cover and structural complexity (Papers I-III, VI). Typically, recruits were more selective than adults, as manifested by limited distributions to degraded sites. Paper VI compared short- and long-term responses of fish assemblages to the 1997-1998 bleaching event. The short-term response to coral mortality included the loss of coral dwelling species in favour of species which feed on algae or associated detrital resources. Counterintuitively, fish abundance and taxonomic richness increased significantly at one of two sites shortly after the bleaching. However, the initial increase was later reversed and six years after the death of the coral, only a limited number of fish remained. The influence of fleshy algae on fish assemblages was studied in algal farms (Paper IV), and examined experimentally (Paper V). The effects of algal farming in Zanzibar were significant. Meanwhile, manually clearing algal-dominated patch reefs in Belize from macroalgae resulted in short-term increases of abundance, biomass and activity of a few species, including major herbivores. The findings of this thesis demonstrate the significance of habitat as a structuring factor for tropical fish assemblages and predicts that coral death, subsequent erosion and algal overgrowth may have substantial deleterious impacts on fish assemblage composition, abundance and taxonomic richness, with recovery being slow and related to the recovery of the reef framework.
23

Distribution of foraminifera, Netarts Bay, Oregon /

Hunger, Arthur Adelbert. January 1966 (has links)
Thesis (M.S.)--Oregon State University, 1966. / Typescript. Includes bibliographical references (leaves 106-110). Also available via the World Wide Web.
24

A study of Hormosira banksii (Phaeophyta) : the taxonomy, genecology of four morphologically distinct forms on South Australian coasts /

Clarke, S. M. January 1978 (has links) (PDF)
Thesis (B.Sc. (Hons.)) -- University of Adelaide, Dept. of Botany, 1979.
25

The taxonomy, morphology and reproduction of the Myrionemaceae, Elachistaceae, Corynophlaeceae and Giraudyaceae (Phaeophyceae) in Southern Australian /

Skinner, Stephen. January 1980 (has links) (PDF)
Thesis (Ph.D.) -- University of Adelaide, Dept. of Botany, 1981. / Typescript (photocopy).
26

Effects of sedimentation on the structure of a phaeophycean dominated macroalgal community /

Turner, David J. January 2004 (has links) (PDF)
Thesis (Ph.D.)--University of Adelaide, School of Earth and Environmental Sciences, Discipline of Environmental Biology, 2005? / "July 2004" Includes bibliographical references (leaves 150-172). Also available electronically.
27

The Behavioural ecology of the white shark (Carcharodon carcharias) at Dyer Island

Johnson, Ryan. January 2003 (has links)
Thesis (M. Sc. (Zoology))--University of Pretoria, 2003. / Includes bibliographical references (leaves 140-153).
28

Nutritional limitation in populations of the Norway lobster, Nephrops norvegicus (L.) in the Firth of Clyde, Scotland

Parslow-Williams, Paul James. January 1998 (has links)
Thesis (Ph.D.) -- University of Glasgow, 1998. / Ph.D. thesis submitted to the Institute of Biomedical and Life Sciences, Division of Environmental and Evolutionary Biology, University of Glasgow, 1998. Includes bibliographical references. Print version also available.
29

Systematics and ecology of the benthic ciliates of Point Mugu Lagoon, Southern California

Smith, Thomas Patrick. January 1981 (has links)
Thesis (Ph. D.)--University of Southern California, 1981. / Includes bibliographical references (leaves 228-251).
30

The physical oceanography and ecology of upwelling shadows

Graham, William Montrose. January 1900 (has links)
Thesis (Ph. D.)--University of California, Santa Cruz, 1994. / Typescript. Includes bibliographical references.

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