The impact of mobile fishing gear on benthic habitat and the implications for fisheries management
Thesis (M.M.S.)--Memorial University of Newfoundland, 2001. Marine Studies Bibliography: leaves 75-82 Marine fisheries for demersal fishes, crustaceans and mollusks are commonly conducted using otter and beam trawls, dredges and rakes. The ecology and behavior of these commercially valuable species...
Main Author: | |
---|---|
Other Authors: | |
Format: | Thesis |
Language: | English |
Published: |
2001
|
Subjects: | |
Online Access: | http://collections.mun.ca/cdm/ref/collection/theses3/id/165974 |
id |
ftmemorialunivdc:oai:collections.mun.ca:theses3/165974 |
---|---|
record_format |
openpolar |
spelling |
ftmemorialunivdc:oai:collections.mun.ca:theses3/165974 2023-05-15T17:23:32+02:00 The impact of mobile fishing gear on benthic habitat and the implications for fisheries management McCallum, Barry R., 1959- Marine Institute (St. John's, N.L.)Marine Studies Programme Canada--Atlantic Provinces 2001 viii, 82 leaves : ill., col. map Image/jpeg; Application/pdf http://collections.mun.ca/cdm/ref/collection/theses3/id/165974 eng eng Electronic Theses and Dissertations (10.00 MB) -- http://collections.mun.ca/PDFs/theses/McCallum_BarryR.pdf a1522865 http://collections.mun.ca/cdm/ref/collection/theses3/id/165974 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--Atlantic Provinces--Equipment and supplies Trawls and trawling--Environmental aspects--Atlantic Provinces Fishery management--Atlantic Provinces Text Electronic thesis or dissertation 2001 ftmemorialunivdc 2015-08-06T19:20:24Z Thesis (M.M.S.)--Memorial University of Newfoundland, 2001. Marine Studies Bibliography: leaves 75-82 Marine fisheries for demersal fishes, crustaceans and mollusks are commonly conducted using otter and beam trawls, dredges and rakes. The ecology and behavior of these commercially valuable species requires that such fishing gears, in order to be effective collectors, must come into contact, and often penetrate the seabed. Concern has long been expressed about the impact of bottom fishing activity on benthic environments and there is now a strong consensus within the scientific community that mobile fishing gear can alter the benthic communities and structures on the seabed. However, the short and long-term consequences of this disturbance and the implications for management of future fisheries are not well understood. -- This paper attempts to examine the issue of fishing gear disturbances of the seabed from a holistic perspective. The mechanisms by which mobile gear impacts the seabed, are considered, as well as the spatial and temporal distribution of this impact in the context of natural disturbances. The selectivity, technical performance, environmental and socio-economic impact of otter trawls is contrasted with other non-bottom contacting fishing technologies. The seabed has long been protected by various national and international agreements and treaties, however these have rarely, if ever, been effective. Various management alternatives to mitigate the adverse effects of bottom contacting fisheries are therefore discussed. Thesis Newfoundland studies University of Newfoundland Memorial University of Newfoundland: Digital Archives Initiative (DAI) Canada |
institution |
Open Polar |
collection |
Memorial University of Newfoundland: Digital Archives Initiative (DAI) |
op_collection_id |
ftmemorialunivdc |
language |
English |
topic |
Fisheries--Atlantic Provinces--Equipment and supplies Trawls and trawling--Environmental aspects--Atlantic Provinces Fishery management--Atlantic Provinces |
spellingShingle |
Fisheries--Atlantic Provinces--Equipment and supplies Trawls and trawling--Environmental aspects--Atlantic Provinces Fishery management--Atlantic Provinces McCallum, Barry R., 1959- The impact of mobile fishing gear on benthic habitat and the implications for fisheries management |
topic_facet |
Fisheries--Atlantic Provinces--Equipment and supplies Trawls and trawling--Environmental aspects--Atlantic Provinces Fishery management--Atlantic Provinces |
description |
Thesis (M.M.S.)--Memorial University of Newfoundland, 2001. Marine Studies Bibliography: leaves 75-82 Marine fisheries for demersal fishes, crustaceans and mollusks are commonly conducted using otter and beam trawls, dredges and rakes. The ecology and behavior of these commercially valuable species requires that such fishing gears, in order to be effective collectors, must come into contact, and often penetrate the seabed. Concern has long been expressed about the impact of bottom fishing activity on benthic environments and there is now a strong consensus within the scientific community that mobile fishing gear can alter the benthic communities and structures on the seabed. However, the short and long-term consequences of this disturbance and the implications for management of future fisheries are not well understood. -- This paper attempts to examine the issue of fishing gear disturbances of the seabed from a holistic perspective. The mechanisms by which mobile gear impacts the seabed, are considered, as well as the spatial and temporal distribution of this impact in the context of natural disturbances. The selectivity, technical performance, environmental and socio-economic impact of otter trawls is contrasted with other non-bottom contacting fishing technologies. The seabed has long been protected by various national and international agreements and treaties, however these have rarely, if ever, been effective. Various management alternatives to mitigate the adverse effects of bottom contacting fisheries are therefore discussed. |
author2 |
Marine Institute (St. John's, N.L.)Marine Studies Programme |
format |
Thesis |
author |
McCallum, Barry R., 1959- |
author_facet |
McCallum, Barry R., 1959- |
author_sort |
McCallum, Barry R., 1959- |
title |
The impact of mobile fishing gear on benthic habitat and the implications for fisheries management |
title_short |
The impact of mobile fishing gear on benthic habitat and the implications for fisheries management |
title_full |
The impact of mobile fishing gear on benthic habitat and the implications for fisheries management |
title_fullStr |
The impact of mobile fishing gear on benthic habitat and the implications for fisheries management |
title_full_unstemmed |
The impact of mobile fishing gear on benthic habitat and the implications for fisheries management |
title_sort |
impact of mobile fishing gear on benthic habitat and the implications for fisheries management |
publishDate |
2001 |
url |
http://collections.mun.ca/cdm/ref/collection/theses3/id/165974 |
op_coverage |
Canada--Atlantic Provinces |
geographic |
Canada |
geographic_facet |
Canada |
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 (10.00 MB) -- http://collections.mun.ca/PDFs/theses/McCallum_BarryR.pdf a1522865 http://collections.mun.ca/cdm/ref/collection/theses3/id/165974 |
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_ |
1766113167090384896 |