"6184","6","archive","1",,,"disk0/00/00/61/84","2018-04-19 01:59:09","2018-04-19 01:59:09","2018-04-19 01:59:09","dataset",,,"show","","","","","","","","","","","0",,,"Brown","Ian Walkden.","","","Department of Agriculture, Fisheries and Forestry, Qld","Seabed discrimination data from SeaScan™","unpub","Q1","","Seabed discrimination; SeaScan; spanner crab; habitat.","By downloading this dataset you agree to the terms and conditions of the attached licence.",,"Raw data from SeaScan™ transects off Wide Bay (south Queensland) taken in August 2007 as part of a study of ecological factors influencing the distribution of spanner crabs (Ranina ranina). The dataset (comma-delimited ascii file) comprises the following fields: 

1.	record number
2.	date-time (GMT)
3.	date-time (AEST)
4.	latitude (signed decimal degrees)
5.	longitude (decimal degrees)
6.	speed over ground (knots)
7.	depth (m)
8.	seabed roughness (v) 
9.	hardness (v) 

Indices of roughness and hardness (from the first and second echoes respectively) were obtained using a SeaScan™ 100 system (un-referenced) on board the Research Vessel Tom Marshall, with the ship’s Furuno FCV 1100 echo sounder and 1 kW, 50 kHz transducer. Generally vessel speed was kept below about 14 kt (typically ~12 kt), and the echo-sounder range set to 80 m. The data were filtered to remove errors due to data drop-out, straying beyond system depth limits (min. 10 m), or transducer interference.",,,,,,,,,,"",,,,,"",,,,,"",,,,,"","","Numerical","© The State of Queensland, Department of Agriculture, Fisheries and Forestry, Qld","",,,,"TRUE","Southern Queensland (Australia) coastal shelf waters - Wide Bay area.","2007-08-31","2007-08-31","","-25.5","153.3","-25.8","153.5","Animal Science",,,"public",,,,,,,,,,,,,,"conference",,,,,,"TRUE",,,,,,,,,"","http://www.frdc.com.au","org",,"Fisheries Research and Development Corporation","FRDC Project 2003/046 Reducing uncertainty in the assessment of the Australian spanner crab fishery. Project Report PR07-3314, Ch. 3: Local-scale ecological effects: temperature, habitat type and wave action (pp 64-84).",,,,,,,"",,,,,,