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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

Small-scale biological and physical structure in a tidally mixed fjord

Gaboury, Isabelle. 10 April 2008 (has links)
No description available.
22

Mesozooplankton population dynamics : factors affecting reproduction and predation /

Collumb, Christopher J., January 2000 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2000. / Vita. Includes bibliographical references (leaves 154-166). Available also in a digital version from Dissertation Abstracts.
23

An ecological study of a reef-associated zooplankton community of Barbados, West Indies /

Boers, Jacobus Johannes January 1988 (has links)
A reef-associated zooplankton community was monitored at weekly intervals for 53 weeks. Samples were collected from quadrats of dense coral cover using emergence net traps. The numerical and biomass fluctuations of 15 taxonomic groups, 7 size classes and 5 feeding groups of the community were determined both temporally and spatially. The community was composed of abundant and diverse taxa (81) with cyclopoid copepods being the most important taxon. Larger-sized fauna (e.g. amphipods, decapods, mysids, etc.) were the second most important abundance and biomass contributors. Size class analysis illustrated a bimodal size distribution spectrum. The well developed second mode of the spectrum was attributed to substratum characteristics which permitted an enhanced macrofaunal/detritivore presence. Although week to week fluctuations of the abundance/biomass data were marked, diversity indices indicated a persistent and resilient community. The nocturnal vertical migrations of the fauna did not show a persistent pattern with the varying phases of 12 sequentially monitored lunar cycles. Substratum heterogeneity was primarily responsible for the spatial distribution pattern of the fauna. Although the data variance suggested stochasticity, time-series procedures determined that cross-correlations between the numerical abundances of taxa, size classes and feeding groups occurred without a lead or lag. Similar analyses identified chlorophyll a as the important environmental variable and also as a leading indicator of particular taxonomic, size and feeding group abundances. It was concluded that reef-associated zooplankton communities are abundant, diverse assemblages structured by periodicities which in combination act to form important links between tropical, inshore benthic and pelagic ecosystems.
24

Investigation into a prominent 38 kHz scattering layer in the North Sea /

Mair, Angus. January 2008 (has links)
Thesis (Ph.D.) - University of St Andrews, May 2008.
25

Trace metal analysis of marine zooplankton from Conception Bay, Newfoundland /

Morneau, Jean Philippe, January 1997 (has links)
Thesis (M.Env.Sci.)--Memorial University of Newfoundland, 1997. / Bibliography: leaves 55-58.
26

Size selective planktivory and phosphorus cycling in pelagic systems

Bartell, Steven Michael, January 1978 (has links)
Thesis--Wisconsin. / Vita. Includes bibliographical references (leaves 185-195).
27

Tidal Modulation of Nocturnal Vertical Migration from the Benthos: A High-resolution Acoustic Analysis

Taylor, Leslie E. January 2003 (has links) (PDF)
No description available.
28

The Use of Acoustics to Resolve Nightly Excursions of Hyperbenthos

Abello, Heather U. January 2003 (has links) (PDF)
No description available.
29

Cross-shelf transport of planktonic larvae of inner shelf benthic invertebrates

Brink, Laura Ann January 1997 (has links)
Typescript. Includes vita and abstract. Bibliography: Includes bibliographical references (leaves 147-153). Description: xi, 153 leaves : ill. ; 29 cm.
30

The zooplankton communities of Tomales Bay, California

Johnston, Debby Jane 01 January 1980 (has links)
This thesis represents a zooplankton study of Tomales Bay, Marin County, California. It consists of two papers. The first paper, "The Abundance of Copepods in Tomales Bay, California" has been submitted to the California Fish and Game for publication. The second paper, "Diet Studies of the Ctenophore Pleurobrachia bachei has been submitted to Fishery Bulletin. The raw data has been compiled in the Appendix.

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