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Zoogeography and ecology of western Beaufort Sea polychaetaBilyard, Gordon Richard 21 May 1979 (has links)
Graduation date: 1980
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Bathyal and abyssal polychaetes (annelids) from the central coast of OregonHancock, Danil R. 25 May 1969 (has links)
Polychaete annelids from 48 benthic samples containing over
2000 specimens were identified. Samples were taken with either an
anchor dredge or an anchor-box dredge from a 15 station transect
(44° 39. 1'N) that ranges from 800 to 2900 meters in depth. Sediment
subsamples were collected and analyzed for organic carbon and sediment
particle size using standard techniques. Temperature and
oxygen of the water near the bottom were taken with a modified Smith-
McIntyre grab; however, these measurements were not taken
simultaneously with the dredged biological samples.
The results indicated that at least 115 species in 53 families of
the class Polychaeta were represented in this transect line. This
study found an absence of the families Serpulidae and Syllidae and a
reduction of the number of speciesin the families Nereidae,
Cirratulidae and Capitellidae. Only five genera had not previously
been reported from the deep sea. The depth distribution of the
polychaetous annelids recovered in this study, coupled with limited
physical data, suggest that five faunal regions can be distinguished.
Nine new forms of polychaeteous annelids are tentatively described,
and others are anticipated in future collections. Suggestions for
future studies are also indicated. / Graduation date: 1969
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An investigation of the distribution of Nephtys caecoides in Yaquina BayMorrison, George Edwin 10 November 1965 (has links)
A study was undertaken in Yaquina Bay, Oregon during the
summer of 1964 to determine the distribution and the factors affecting
the distribution of the polychaete worm, Nephtys caecoides,
Hartman, 1938, in the estuary.
This organism has a continuous distribution from offshore to
a point approximately eight kilometers into the bay.
Environmental factors considered were salinity, temperature,
and sediment composition.
The results of this study do not single out a factor as the one
limiting the distribution of N. caecoides in Yaquina Bay. During
summer months, it is possible that sediment porosity, organic
content and temperature operate together to form an unfavorable
environment. / Graduation date: 1966
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The function of the extracellular hemoglobin of the Opheliid Polychaete Euzonus mucronata (Treadwell)Dangott, Lawrence J., 1950- 08 1900 (has links)
v, 51 leaves : ill. ; 29 cm
Notes Typescript. (Another copy on microfilm is located in Archives)
Thesis (M.S.)--University of Oregon
Includes vita
Bibliography: leaves 46-51
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The morphology and development of neurosecretory cells in the brain of Nereis virens (Annelida, Polychaeta)Bell, M. Kathryn. January 1980 (has links)
Note:
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Chemosensory-mediated deposit feeding in the spionid polychaete Dipolycora quadrilobata /Riordan, Timothy J., January 2001 (has links)
Thesis (M.S.) in Marine Biology--University of Maine, 2001. / Includes vita. Includes bibliographical references (leaves 82-92).
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Benthic infaunal community at an intertidal mudflat and molecular analysis of the dominant species Neanthes glandicincta (Polychaeta)Shen, Pingping. January 2008 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2008. / Includes bibliographical references (leaf 211-245) Also available in print.
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Reproductive and larval biology of the northeastern Pacific polychaete Owenia collaris (family Oweniidae) in Coos Bay, Or /Smart, Tracey Irene, January 2008 (has links)
Typescript. Includes vita and abstract. Includes bibliographical references (leaves 134-154). Also available online in Scholars' Bank; and in ProQuest, free to University of Oregon users.
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Taxonomy and biogeography of the polychaetes of the Falkland Islands : critical analysis of published worksDarbyshire, Teresa January 2018 (has links)
Taxonomic works relating to polychaetes from the Falkland Islands are few and little has been published specifically on them since the early to mid twentieth century. Unusually, the intertidal region has received less attention than subtidal sites with most information coming from Antarctic expeditions that used the Islands as a staging post on their journeys south. Works relating to the wider Magellan region, as well as the Antarctic, are far more numerous. The project detailed by this thesis was conceived to address this dearth of knowledge, put the information gleaned into context with the biogeographical region within which the Falkland Islands sit and to determine whether species distribution around the Islands is affected by the differing current regimes that influence the surrounding waters. In total, 218 taxa are reported, 52 of which have been named so far, including four new species whose published descriptions form part of this document. Over 85% of the named species are already known from the wider Magellan region and significant overlap with South Georgian and Antarctic faunas is also apparent. Cluster analyses and multi-dimensional scaling plots show depth (intertidal versus subtidal) to be the strongest influence on species composition with shore height and sediment type having limited effect and geographic location none. Taxonomic distinctness indices are used to assess the species lists and compare sample sites. Much of the diversity appears to centre on microhabitats such as epifaunal and algal turfs and biogenic encrustations. Syllidae are the most diverse family and dominate some samples, particularly those from epifaunal turf and sieved sediments. Other families appear to use microhabitats, such as epifaunal turf and biogenic encrustations, as nursery areas, with large numbers of juveniles in some samples. Comparisons are made with other intertidal diversity studies from the Scotia Arc and Antarctic.
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Biogenic amines in the central nervous system of the polychaete, Nereis virensWhite, Debrah Lynn. January 1976 (has links)
No description available.
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