Full description
Opportunistic collection of acoustic data from 28kHz fisheries sounders using Echolistener digitisers from the Megisti Star at the peak of spawning period at St Helens Hill and St Patricks Head to provide extra information over that key time period. A continuation of the 1999 acoustic survey of St Helens Hill where Southern Surveyor and the industry vessel Saxon Progress participated in acoustic surveying of orange roughy stocks (see Marlin record number 5545).Lineage
Progress Code: completed
Maintenance and Update Frequency: notPlanned
Statement: Echolistener digitising units are used to connect across the already installed fisheries echosounders providing a relatively low cost way of obtaining digitised acoustic data. The quality of the data is determined partly by the characterisitcs of the system that is being digitised. Conventional fisheries sounder have wide beam transducers which have undefined beam patterns and are at present uncalibrated. An objective of this project is to assess the usefulness of such data and determine if it can provide data to the required accuracy
Notes
CreditJoe Pirello, skipper Murray Stephenson and crew of Megisti Star. Geoff Diver for facillitating the collection of data.
Credit
Tim Ryan
Tim Ryan
Data time period: 2001-07-21 to 2001-07-27
text: westlimit=144; southlimit=-43.8; eastlimit=149; northlimit=-40.12
Subjects
Acoustic Equipment/Echosounders |
Coastal Waters (Australia) | Tasmania Coast East and Southeast, TAS |
Coastal Waters (Australia) | Tasmania Coast North, TAS |
Coastal Waters (Australia) | Tasmania Coast West, TAS |
Development and application of a combined industry/scientific acoustic survey of orange roughy in the Eastern Zone (FRDC project no. 1999/111) 1999-2001 |
Earth Science | Agriculture | Agricultural Aquatic Sciences | Fisheries |
Earth Science | Biosphere | Aquatic Ecosystems | Demersal Habitat |
Earth Science | Oceans | Bathymetry/Seafloor Topography | Water Depth |
Field Program: MES 1/2001 |
Regional Seas | Tasman Sea |
Ship: Megisti Star |
Vessel Data: Acoustics (Fisheries) |
oceans |
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Other Information
Voyage and Metadata report (pdf) (Data Link)
Identifiers
- Local : Anzlic Identifier: ANZCW0306005856
- Local : Marlin Record Number: 5856
- global : 703ed6ce-5ee9-4c43-8f5e-6edc356f5842
