Collection of acoustic data from 28kHz fisheries sounders using Echolistener digitisers from an industry vessel to provide baseline acoustic data over a month long period during the July roughy spawning event. Trips CER200102 to 06 were located around St Patricks Head and St Helens Hill orange roughy fishing grounds. Addition biological data was collected during these voyages (see Marlin record numbers ....). 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).

Collection of acoustic data from 28kHz fisheries sounders using Echolistener digitisers from an industry vessel to provide baseline acoustic data over a month long period during the July roughy spawning event. Trips CER200102 to 06 were located around St Patricks Head and St Helens Hill orange roughy fishing grounds. Addition biological data was collected during these voyages (see Marlin record numbers ....). 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).

Pilot data collection excercise to collect Simrad ES60 38kHZ vertical acoustic data from an industry vessel to assess the data management/quality issues and the suitablity of the vessel as an acoustic platform. 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). 8 gigabytes of full sample rate ES60 data collected during the three day voyage.

Collection of acoustic data from 28kHz fisheries sounders using Echolistener digitisers from an industry vessel to provide baseline acoustic data over a month long period during the July roughy spawning event. Trips CER200102 to 06 were located around St Patricks Head and St Helens Hill orange roughy fishing grounds. Addition biological data was collected during these voyages (see Marlin record numbers ....). 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).

Pilot data collection excercise to collect Simrad ES60 38kHZ vertical acoustic data from an industry vessel to assess the data management/quality issues and the suitablity of the vessel as an acoustic platform. Trips PEX200101 to PEX200104 tested the ES60 system. Trips PEX200105,06 and 07 are the main trips of interest where the Tasmanian east coast the roughy grounds were fished. 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). 4.7 gigabytes of full sample rate ES60 data collected during the voyage.

Saxon Progress was the industry catcher vessel working in tandem with the Southern Surveyor during the July-August 1999 orange roughy research voyage at St Helens Hill and St Patricks Head. The acoustic system comprised a Sonardata Echolistener unit that digitised and recorded the output of the Furuno 28kHz commercial fisheries sounder. Related datasets: Demersal trawl data collected by the Saxon Progress during the survey; Acoustic and biological data collected by the Southern Surveyor during this same survey period - see separate Marlin entry.

Pilot data collection excercise to collect Simrad ES60 38kHZ vertical acoustic data from an industry vessel to assess the data management/quality issues and the suitablity of the vessel as an acoustic platform. 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). This voyage took the vessel to the Tasmanian West Coast Blue Grenadier grounds. 14 gigabytes of full sample rate ES60 data collected during the voyage.

Collection of acoustic data from 28kHz fisheries sounders using Echolistener digitisers from an industry vessel to provide baseline acoustic data over a month long period during the July roughy spawning event. Trips CER200102 to 06 were located around St Patricks Head and St Helens Hill orange roughy fishing grounds. Addition biological data was collected during these voyages (see Marlin record numbers ....). 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).

Collection of acoustic data from 28kHz fisheries sounders using Echolistener digitisers from an industry vessel to provide baseline acoustic data over a month long period during the July roughy spawning event. Trips CER200102 to 06 were located around St Patricks Head and St Helens Hill orange roughy fishing grounds. Addition biological data was collected during these voyages (see Marlin record numbers ....). 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).

Pilot data collection excercise to collect Simrad ES60 38kHZ vertical acoustic data from an industry vessel to assess the data management/quality issues and the suitablity of the vessel as an acoustic platform. 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). This voyage took the vessel to the Tasmanian West Coast Blue Grenadier grounds. 7 gigabytes of full sample rate ES60 data collected during the voyage.