249 results
Environment
PROJECT NUMBER • 1993-237
PROJECT STATUS:
COMPLETED

Development of software for use in multi-frequency acoustic biomass assessments and ecological studies

The development of the ECHO software has enabled the collection and analysis of large multifrequency acoustic data sets. The data can now be processed in a timely manner (via overlays) to quality assure and interpret underlying acoustic characteristics in the signals. From these analyses we can...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
TAGS
Stock Assessment
Software
Habitat
Data
Biomass
Environment
Environment
Environment
PROJECT NUMBER • 1993-093
PROJECT STATUS:
COMPLETED

Development of biological tagging techniques for penaeid prawns

The objective of this project was to develop novel biological tags for penaeid prawns. The impetus for this research was the growing interest in Australia in the potential for stock-enhancement of penaeid fisheries with hatchery reared juveniles. In any stock- enhancement program some...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
TAGS
Traceability
Tagging
Stock Assessment
Biotechnology
Environment
PROJECT NUMBER • 1993-077
PROJECT STATUS:
COMPLETED

Quantitative interpretation of fine-scale SBT catch per unit effort for south east Australia

An analysis of spatial and temporal variations in catch rates of Southern Bluefin Tuna (SBT) in relation to environmental factors was conducted for the region south of Tasmania up to 1he southern half of New South Wales. Substantial temporal and spatial variations were evident in...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
TAGS
Oceanography
Fishing Gear
Fishing Effort
Environmental Impact
Data
Environment

Investigation of school and gummy shark nursery areas in south-eastern Australia

Project number: 1993-061
Project Status:
Completed
Budget expenditure: $288,203.00
Principal Investigator: John Stevens
Organisation: CSIRO Oceans and Atmosphere Hobart
Project start/end date: 29 Sep 1993 - 16 Sep 1997
Contact:
FRDC
TAGS
Tagging
Stock Assessment
Nutrition
Habitat
Food Web

Objectives

1. To identify pupping and nursery grounds for school and gummy sharks in southern Australia
2. Determine the distribution size structure duration time and movements of newborn and juvenile sharks in nursery areas
3. Attempt to develop recruitment indices for school and gummy sharks
4. Determine pre-recruit mortality from tagging experiments
5. Determine relative catch rates of juveniles by commercial and recreational fishers

Final report

Author: John Stevens
Final Report • 1997-08-06 • 299.91 KB
1993-061-DLD.pdf

Development of an acoustic system for remote sensing of benthic fisheries habitat for mapping, monitoring and impact assessment

Project number: 1993-058
Project Status:
Completed
Budget expenditure: $409,433.00
Principal Investigator: Roland C. Pitcher
Organisation: CSIRO Oceans and Atmosphere Hobart
Project start/end date: 20 Dec 1993 - 31 Oct 2000
Contact:
FRDC
TAGS
Stock Assessment
Remote Sensing
Habitat
Fishing Technology
Electronic Monitoring

Objectives

1. To develop a digital hydro-acoustic instrument that remotely-sensed seabed type and epifauna communities for mapping, monitoring and impact assessment.

Final report

ISBN: 0-643-06196-7
Author: Roland Pitcher
Final Report • 1999-01-01 • 3.07 MB
1993-058-DLD.pdf
Industry
Environment
PROJECT NUMBER • 1992-042
PROJECT STATUS:
COMPLETED

The direct estimation of age and growth of SBT

This project was developed in response to calls from the SBT Trilateral (now the CCSBT) Scientific Committee for the development and validation of techniques for the direct estimation of age and growth in the species. Since the early 1980’s, the stock assessment methods used by...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
TAGS
Tagging
Stock Assessment
Reproduction
Mortality
Fishing Gear
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