Interpolated density distribution of commercial trawl tracklines in Tasman Bay-Golden Bay
Commercial trawl fishing data were provided by Ministry for Primary Industries to determine where fishing effort had taken place. Data were from Trawl Catch Effort Returns (TCER) and Trawl Catch Effort and Processing Returns (TCEPR) and included effort for flatfish, barracouta, snapper, red cod, and red gurnard. Data cover the time period 1 October 2008 to 16 November 2011.
Where trawl data had only start tow positions (TCER data), trawl lines were generated on groomed data by plotting lines between consecutive trawl start positions, per vessel, per day (data excludes single trawls that fell on the same day).
The Line Density Tool in ARCInfo vers. 10.0 was used to interpolate trawl tracklines giving each line a weight based on the estimated area towed.
A geoTIFF shows the distribution of the density of trawl tracks.
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Citation proposal
. . https://dc.niwa.co.nz:/niwa_dc/srv/api/records/f9ad47af-c8f1-4ba5-aa1c-90305aa4ccf7 |
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- Date
- Credit
- This work was funded by the Ministry for Primary Industries (MPI).
Point of contact
National Institute of Water & Atmospheric Research Ltd.
217 Akersten Street Port Nelson
Nelson
7010
New Zealand
- Spatial representation type
- Grid
- Topic category
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- Oceans
N
S
E
W
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- Tasman Bay Golden Bay estimate trawl effort tracklines density GIS interpolation
- Specific usage
- TBGB
- Title
- Tuck I, Hewitt J, Handley S, Willis T, Carter, M.; Hadfield, M.; Gorman, R.; Cairney, D.; Brown, S.; Palmer, A. (2011). Assessing the effects of fishing on soft sediment habitat, fauna and processes. Progress report prepared for MPI in part completion of project BEN2007-01.
- Association Type
- Larger work citation
- Language
- English
- Character encoding
- UTF8
mdb:MD_Metadata
- Metadata identifier
- f9ad47af-c8f1-4ba5-aa1c-90305aa4ccf7
- Date info ( Creation )
- 2013-08-12T16:41:30
- Title
- ISO 19115-3
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