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FLUME TANK TESTING OF AN INNOVATIVE FOOTGEAR TECHNOLOGY USING SIMULATED SEABEDS.
- Source :
- Journal of Ocean Technology; 2021, Vol. 16 Issue 2, p62-84, 23p
- Publication Year :
- 2021
-
Abstract
- There have been many advancements in bottom trawls to reduce physical and biological impacts on benthic habitats. In this study, an innovative aligned-rolling footgear was designed and evaluated for use in the Northern shrimp (Pandalus borealis) fishery in Eastern Canada. We document a novel technique for comparing traditional and experimental footgears using engineering models and simulated seabed conditions in a flume tank. Footgears were compared using direct observation and by measuring warp load during simulated smooth, semi-rough, and rough seabed conditions in contact with bosom or wing footgear sections. Results revealed that the traditional footgear bottom trawl experienced significantly higher warp loads for smooth (0.26 t higher), semi-rough (0.68 t higher), and rough seabed conditions (0.74 t higher) in the bosom section. In the wing section, traditional bottom trawl produced significantly higher warp loads for smooth (0.38 t higher) and rough seabed conditions (0.30 t higher). Bottom trawl with aligned-rolling footgear reduces seabed contact up to 71.5% depending upon depth of penetration modelled. To our knowledge, this study represents the first attempt at using simulated seabed conditions in a flume tank testing footgear technology. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 17183200
- Volume :
- 16
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Journal of Ocean Technology
- Publication Type :
- Academic Journal
- Accession number :
- 150924049