n2 Three complementary seabed characterization tools with different spatial resolution were
ow nloaded from used to locate a research site and to assess physical effects of experimental otter trawling in the Barents Sea: an acoustic seabed classification system (RoxAnn), sidescan sonar and a video-sledge. The marine protected area (MPA) around Bear Island was chosen as it offered unfished...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.572.7079 2023-05-15T15:38:59+02:00 n2 Three complementary seabed characterization tools with different spatial resolution were At Pennsylvania State U The Pennsylvania State University CiteSeerX Archives 2002 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.572.7079 http://icesjms.oxfordjournals.org/content/61/1/53.full.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.572.7079 http://icesjms.oxfordjournals.org/content/61/1/53.full.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://icesjms.oxfordjournals.org/content/61/1/53.full.pdf impact studies ITI positioning system otter trawling RoxAnn sidescan sonar video-sledge text 2002 ftciteseerx 2016-01-08T12:36:20Z ow nloaded from used to locate a research site and to assess physical effects of experimental otter trawling in the Barents Sea: an acoustic seabed classification system (RoxAnn), sidescan sonar and a video-sledge. The marine protected area (MPA) around Bear Island was chosen as it offered unfished reference sites. The area was topographically complex which resulted in certain challenges for choice of the experimental site due to the requirements of representativity and homogeneity and suitable sampling substrate. Systematic waylines with RoxAnn gave broad-scale patterns of bottom conditions, the more informative sidescan revealed topographic reliefs, whilst detailed information on sediment composition and small-scale seabed features was provided by the video-sledge. Accurate positioning of towed gears (trawl, sidescan and video-sledge) ensured unbiased data acquisition. Trawl doors and rockhopper gear created furrows that were visible by sidescan sonar and video. Intensive trawling also caused changes in the acoustic properties by increasing roughness and decreasing hardness. Results are consistent with a possible resuspension of the sediment and a homogenizing effect from the trawl doors and ground gear ploughing the area. The suitability and advantages of using spatially overlapping tools in trawl impact studies are discussed. Text Barents Sea Bear Island Unknown Barents Sea Bear Island ENVELOPE(-67.250,-67.250,-68.151,-68.151) |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
impact studies ITI positioning system otter trawling RoxAnn sidescan sonar video-sledge |
spellingShingle |
impact studies ITI positioning system otter trawling RoxAnn sidescan sonar video-sledge At Pennsylvania State U n2 Three complementary seabed characterization tools with different spatial resolution were |
topic_facet |
impact studies ITI positioning system otter trawling RoxAnn sidescan sonar video-sledge |
description |
ow nloaded from used to locate a research site and to assess physical effects of experimental otter trawling in the Barents Sea: an acoustic seabed classification system (RoxAnn), sidescan sonar and a video-sledge. The marine protected area (MPA) around Bear Island was chosen as it offered unfished reference sites. The area was topographically complex which resulted in certain challenges for choice of the experimental site due to the requirements of representativity and homogeneity and suitable sampling substrate. Systematic waylines with RoxAnn gave broad-scale patterns of bottom conditions, the more informative sidescan revealed topographic reliefs, whilst detailed information on sediment composition and small-scale seabed features was provided by the video-sledge. Accurate positioning of towed gears (trawl, sidescan and video-sledge) ensured unbiased data acquisition. Trawl doors and rockhopper gear created furrows that were visible by sidescan sonar and video. Intensive trawling also caused changes in the acoustic properties by increasing roughness and decreasing hardness. Results are consistent with a possible resuspension of the sediment and a homogenizing effect from the trawl doors and ground gear ploughing the area. The suitability and advantages of using spatially overlapping tools in trawl impact studies are discussed. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
At Pennsylvania State U |
author_facet |
At Pennsylvania State U |
author_sort |
At Pennsylvania State U |
title |
n2 Three complementary seabed characterization tools with different spatial resolution were |
title_short |
n2 Three complementary seabed characterization tools with different spatial resolution were |
title_full |
n2 Three complementary seabed characterization tools with different spatial resolution were |
title_fullStr |
n2 Three complementary seabed characterization tools with different spatial resolution were |
title_full_unstemmed |
n2 Three complementary seabed characterization tools with different spatial resolution were |
title_sort |
n2 three complementary seabed characterization tools with different spatial resolution were |
publishDate |
2002 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.572.7079 http://icesjms.oxfordjournals.org/content/61/1/53.full.pdf |
long_lat |
ENVELOPE(-67.250,-67.250,-68.151,-68.151) |
geographic |
Barents Sea Bear Island |
geographic_facet |
Barents Sea Bear Island |
genre |
Barents Sea Bear Island |
genre_facet |
Barents Sea Bear Island |
op_source |
http://icesjms.oxfordjournals.org/content/61/1/53.full.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.572.7079 http://icesjms.oxfordjournals.org/content/61/1/53.full.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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