Factors influencing patterns in distribution, abundance and diversity of sedimentary macrofauna in deep, muddy sediments of Placentia Bay, Newfoundland and the adjacent shelf
Thesis (M.Sc.)--Memorial University of Newfoundland, 2001. Biology Includes bibliographical references A nested sampling design and multivariate analyses were used to examine the community structure and spatial distribution of macrofauna on muddy substrates in Placentia Bay, Newfoundland and the adj...
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ftmemorialunivdc:oai:collections.mun.ca:theses3/90865 2023-05-15T17:23:32+02:00 Factors influencing patterns in distribution, abundance and diversity of sedimentary macrofauna in deep, muddy sediments of Placentia Bay, Newfoundland and the adjacent shelf Ramey, Patricia A., 1974- Memorial University of Newfoundland. Dept. of Biology 2001 xxi, 210 leaves : ill. Image/jpeg; Application/pdf http://collections.mun.ca/cdm/ref/collection/theses3/id/90865 eng eng Electronic Theses and Dissertations (23.11 MB) -- http://collections.mun.ca/PDFs/theses/Ramey_PatriciaA.pdf a1539224 http://collections.mun.ca/cdm/ref/collection/theses3/id/90865 The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission. Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries Marine invertebrate populations--Newfoundland and Labrador--Placentia Bay Polychaeta--Newfoundland and Labrador--Placentia Bay;Marine ecology--Newfoundland and Labrador--Placentia Bay Text Electronic thesis or dissertation 2001 ftmemorialunivdc 2015-08-06T19:18:45Z Thesis (M.Sc.)--Memorial University of Newfoundland, 2001. Biology Includes bibliographical references A nested sampling design and multivariate analyses were used to examine the community structure and spatial distribution of macrofauna on muddy substrates in Placentia Bay, Newfoundland and the adjacent shelf. The goal was to determine how macrofaunal communities are related to water column (e.g., surface productivity) and sediment characteristics (e.g., carbon and nitrogen content). Box core samples were collected at 10 sites (June & July of 1998) that were distributed from the head of the bay through the Eastern and Western Channels to the edge of the continental shelf. This is the first comprehensive study of Placentia Bay infauna and it is divided into three main components. Chapter 1 examines broad-scale patterns in community composition, diversity and abundance along an inshore/offshore gradient. Results indicate that the bay contains distinct inshore and offshore regions and benthic patterns are largely influenced by surface oceanography. Chapter 2 focuses on finer-scale patterns of distribution and abundance within the inshore region of the bay and reveals spatial patterns that were not evident in the analyses of broad-scale patterns in the previous chapter. Sediment-related factors and depth were important in explaining variation in inshore benthic patterns. Thus, contrasting the results of these two chapters suggests that different variables structure these communities at different scales. Because little biological sampling for benthos has been undertaken in this area, Chapter 3 provides a guide to the polychaetes, which are the dominant group of infauna in the study. Digital photographs of the key characteristics used to identify each species are provided to help bridge identification guides developed for other areas. Thesis Newfoundland studies University of Newfoundland Memorial University of Newfoundland: Digital Archives Initiative (DAI) Newfoundland |
institution |
Open Polar |
collection |
Memorial University of Newfoundland: Digital Archives Initiative (DAI) |
op_collection_id |
ftmemorialunivdc |
language |
English |
topic |
Marine invertebrate populations--Newfoundland and Labrador--Placentia Bay Polychaeta--Newfoundland and Labrador--Placentia Bay;Marine ecology--Newfoundland and Labrador--Placentia Bay |
spellingShingle |
Marine invertebrate populations--Newfoundland and Labrador--Placentia Bay Polychaeta--Newfoundland and Labrador--Placentia Bay;Marine ecology--Newfoundland and Labrador--Placentia Bay Ramey, Patricia A., 1974- Factors influencing patterns in distribution, abundance and diversity of sedimentary macrofauna in deep, muddy sediments of Placentia Bay, Newfoundland and the adjacent shelf |
topic_facet |
Marine invertebrate populations--Newfoundland and Labrador--Placentia Bay Polychaeta--Newfoundland and Labrador--Placentia Bay;Marine ecology--Newfoundland and Labrador--Placentia Bay |
description |
Thesis (M.Sc.)--Memorial University of Newfoundland, 2001. Biology Includes bibliographical references A nested sampling design and multivariate analyses were used to examine the community structure and spatial distribution of macrofauna on muddy substrates in Placentia Bay, Newfoundland and the adjacent shelf. The goal was to determine how macrofaunal communities are related to water column (e.g., surface productivity) and sediment characteristics (e.g., carbon and nitrogen content). Box core samples were collected at 10 sites (June & July of 1998) that were distributed from the head of the bay through the Eastern and Western Channels to the edge of the continental shelf. This is the first comprehensive study of Placentia Bay infauna and it is divided into three main components. Chapter 1 examines broad-scale patterns in community composition, diversity and abundance along an inshore/offshore gradient. Results indicate that the bay contains distinct inshore and offshore regions and benthic patterns are largely influenced by surface oceanography. Chapter 2 focuses on finer-scale patterns of distribution and abundance within the inshore region of the bay and reveals spatial patterns that were not evident in the analyses of broad-scale patterns in the previous chapter. Sediment-related factors and depth were important in explaining variation in inshore benthic patterns. Thus, contrasting the results of these two chapters suggests that different variables structure these communities at different scales. Because little biological sampling for benthos has been undertaken in this area, Chapter 3 provides a guide to the polychaetes, which are the dominant group of infauna in the study. Digital photographs of the key characteristics used to identify each species are provided to help bridge identification guides developed for other areas. |
author2 |
Memorial University of Newfoundland. Dept. of Biology |
format |
Thesis |
author |
Ramey, Patricia A., 1974- |
author_facet |
Ramey, Patricia A., 1974- |
author_sort |
Ramey, Patricia A., 1974- |
title |
Factors influencing patterns in distribution, abundance and diversity of sedimentary macrofauna in deep, muddy sediments of Placentia Bay, Newfoundland and the adjacent shelf |
title_short |
Factors influencing patterns in distribution, abundance and diversity of sedimentary macrofauna in deep, muddy sediments of Placentia Bay, Newfoundland and the adjacent shelf |
title_full |
Factors influencing patterns in distribution, abundance and diversity of sedimentary macrofauna in deep, muddy sediments of Placentia Bay, Newfoundland and the adjacent shelf |
title_fullStr |
Factors influencing patterns in distribution, abundance and diversity of sedimentary macrofauna in deep, muddy sediments of Placentia Bay, Newfoundland and the adjacent shelf |
title_full_unstemmed |
Factors influencing patterns in distribution, abundance and diversity of sedimentary macrofauna in deep, muddy sediments of Placentia Bay, Newfoundland and the adjacent shelf |
title_sort |
factors influencing patterns in distribution, abundance and diversity of sedimentary macrofauna in deep, muddy sediments of placentia bay, newfoundland and the adjacent shelf |
publishDate |
2001 |
url |
http://collections.mun.ca/cdm/ref/collection/theses3/id/90865 |
geographic |
Newfoundland |
geographic_facet |
Newfoundland |
genre |
Newfoundland studies University of Newfoundland |
genre_facet |
Newfoundland studies University of Newfoundland |
op_source |
Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries |
op_relation |
Electronic Theses and Dissertations (23.11 MB) -- http://collections.mun.ca/PDFs/theses/Ramey_PatriciaA.pdf a1539224 http://collections.mun.ca/cdm/ref/collection/theses3/id/90865 |
op_rights |
The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission. |
_version_ |
1766113114668924928 |