The application of the log-linear model in the fishing industry
Thesis (M.A.S.)--Memorial University of Newfoundland, 2009. Mathematics and Statistics Includes bibliographical references (leaves 75-76) This thesis is specifically related to the fishing industry. In the first part of this thesis, literature review is done on estimating the size-selectivity of gil...
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ftmemorialunivdc:oai:collections.mun.ca:theses4/87804 2023-05-15T17:23:33+02:00 The application of the log-linear model in the fishing industry Yu, Honggang. Memorial University of Newfoundland. Dept. of Mathematics and Statistics 2008 ix, 117 leaves : ill. Image/jpeg; Application/pdf http://collections.mun.ca/cdm/ref/collection/theses4/id/87804 Eng eng Electronic Theses and Dissertations (10.43 MB) -- http://collections.mun.ca/PDFs/theses/Yu_Honggang.pdf a3217554 http://collections.mun.ca/cdm/ref/collection/theses4/id/87804 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 Fisheries--Statistics Gillnetting--Mathematical models Log-linear models Lognormal distribution Text Electronic thesis or dissertation 2008 ftmemorialunivdc 2015-08-06T19:22:11Z Thesis (M.A.S.)--Memorial University of Newfoundland, 2009. Mathematics and Statistics Includes bibliographical references (leaves 75-76) This thesis is specifically related to the fishing industry. In the first part of this thesis, literature review is done on estimating the size-selectivity of gillnet. There are currently five widely-used methodologies about the size-selectivity of gillnet. After briefly describing all of them, respective examples about these five theories are given. The purpose of the first part is to clarify some useful statistical procedures for the problem encountered by fishing industries. -- In the second part of this thesis, the approach by Millar and Hoslt (1997) is employed and compared with the log-linear model. Using the data from fleet EW and fleet JV, it is found that the normal scale model yields the smallest deviance for JV, but not significantly smaller than that from the normal location model. For EW, the normal location model produces the smallest deviance, but not significantly smaller than the normal scale model. For both data sets, the Lognormal model yields the largest deviance. Thesis Newfoundland studies University of Newfoundland Memorial University of Newfoundland: Digital Archives Initiative (DAI) |
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Memorial University of Newfoundland: Digital Archives Initiative (DAI) |
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ftmemorialunivdc |
language |
English |
topic |
Fisheries--Statistics Gillnetting--Mathematical models Log-linear models Lognormal distribution |
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Fisheries--Statistics Gillnetting--Mathematical models Log-linear models Lognormal distribution Yu, Honggang. The application of the log-linear model in the fishing industry |
topic_facet |
Fisheries--Statistics Gillnetting--Mathematical models Log-linear models Lognormal distribution |
description |
Thesis (M.A.S.)--Memorial University of Newfoundland, 2009. Mathematics and Statistics Includes bibliographical references (leaves 75-76) This thesis is specifically related to the fishing industry. In the first part of this thesis, literature review is done on estimating the size-selectivity of gillnet. There are currently five widely-used methodologies about the size-selectivity of gillnet. After briefly describing all of them, respective examples about these five theories are given. The purpose of the first part is to clarify some useful statistical procedures for the problem encountered by fishing industries. -- In the second part of this thesis, the approach by Millar and Hoslt (1997) is employed and compared with the log-linear model. Using the data from fleet EW and fleet JV, it is found that the normal scale model yields the smallest deviance for JV, but not significantly smaller than that from the normal location model. For EW, the normal location model produces the smallest deviance, but not significantly smaller than the normal scale model. For both data sets, the Lognormal model yields the largest deviance. |
author2 |
Memorial University of Newfoundland. Dept. of Mathematics and Statistics |
format |
Thesis |
author |
Yu, Honggang. |
author_facet |
Yu, Honggang. |
author_sort |
Yu, Honggang. |
title |
The application of the log-linear model in the fishing industry |
title_short |
The application of the log-linear model in the fishing industry |
title_full |
The application of the log-linear model in the fishing industry |
title_fullStr |
The application of the log-linear model in the fishing industry |
title_full_unstemmed |
The application of the log-linear model in the fishing industry |
title_sort |
application of the log-linear model in the fishing industry |
publishDate |
2008 |
url |
http://collections.mun.ca/cdm/ref/collection/theses4/id/87804 |
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 (10.43 MB) -- http://collections.mun.ca/PDFs/theses/Yu_Honggang.pdf a3217554 http://collections.mun.ca/cdm/ref/collection/theses4/id/87804 |
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. |
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1766113279280676864 |