Typescript.
Includes vita and abstract.
Bibliography: Includes bibliographical references (leaves 114-132).
Description: xiii, 132 leaves : ill. (some col.), charts ; 29 cm. / Larvae of the limpets Lottia digitalis and LOffia asmi, as well as larvae of the flat
abalone Halioits walallensis. develop into lecithotrophic veliger larvae and settle into
benthic habitat after a breif planktonic stage. Larvae of 1. digitalis settled and
metamorphosed upon rocky substrata, as well as the barnacle P. polymerus, collected
from an adult habitat high in the rocky intertidal. In contrast, substrata from mid and low
intertidal zones failed to induce settlement and metamorphosis in larvae of L. digitalis.
These results suggest that recruitment into high intertidal habitat is driven by settlement
rather than post settlement processes. New recruits within an adult habitat were most
abundant low within the adult range and upon north-facing slopes of rocks. Larvae ofH
walallensis that experienced a five-day extension of their competence period exhibited
accelerated rates of metamorphosis, as well as accelerated juvenile growth rates, relative
to larvae that were presented with settlement surfaces at initial competence.
| Identifer | oai:union.ndltd.org:uoregon.edu/oai:scholarsbank.uoregon.edu:1794/9902 |
| Date | January 2001 |
| Creators | Kay, Matthew Curry, 1973- |
| Publisher | Thesis (M.S.)--University of Oregon, 2001. |
| Source Sets | University of Oregon |
| Language | en_US |
| Detected Language | English |
| Type | Thesis |
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