718 results

Southern shark age validation

Project number: 1991-037
Project Status:
Completed
Budget expenditure: $148,285.81
Principal Investigator: Terence I. Walker
Organisation: Agriculture Victoria
Project start/end date: 28 Jun 1992 - 30 Jul 1995
Contact:
FRDC

Objectives

1. Validate current ageing method for gummy & school sharks.

Final report

Author: T.I. Walker R.A. Officer J.G. Clement L.P. Brown
Final Report • 2017-09-29 • 6.45 MB
1991-037-DLD.pdf

Summary

Gummy sharks and school sharks are aged by counting growth-increment bands on the articular faces of vertebrae stained with alizarin red. The age data are required for application of age-structured fishery assessment models used by the Southern Shark Fishery Assessment Group for stock advice to the Southern Shark Fishery Management Advisory Committee.

The project demonstrated that gummy sharks can be held captive in land-based tanks for long periods, that survival rates in captive sharks can be improved with appropriate feeding regimes and treatment with antibiotics, and that growth rates of captive sharks can be increased over those found in the wild. The study also demonstrated that school sharks are difficult to hold in captivity.

Second Australian National Prawn Seminar

Project number: 1983-067
Project Status:
Completed
Budget expenditure: $0.00
Organisation: CSIRO Oceans and Atmosphere Cleveland
Project start/end date: 28 Dec 1985 - 31 Dec 1985
Contact:
FRDC

Objectives

1. Publish and distribute the proceedings of the Second Australian National Prawn Seminar

Proceedings

ISBN: 0 9589426 0 9
Authors: P.C. Rothlisberg B.J. Hill and D.J. Staples
Proceedings • 1985-12-31 • 15.86 MB
1983-067 Proceedings.pdf

Summary

Since the First Australian National Prawn Seminar in 1973, Australian prawn fisheries have grown in size and value to become Australia's most valuable fisheries resource. In the same period the number of people involved in the fishing industry, research and management has also increased. Major new research centres have been established and several new programs implemented. A wide array of management regimes have been introduced including limited entry, seasonal and area closures coupled with sampling regimes to optimise the size at which prawns are harvested. Recently there has been a resurgence of interest in penaeid aquaculture which has been stimulated by the marked increase in pond production in South America and South East Asia, and the impact the product is having on world markets.

Because of the wide geographic separation of the various Australian prawn fisheries, there is little opportunity for those involved in the industry to meet and discuss topics at the national level. Accordingly it was felt that an update of developments and progress in research, management, economics, marketing, and aquaculture was necessary. We formed an organising committee and obtained funds to cover conference and publication expenses.

The Second Australian National Prawn Seminar was held at Kooralbyn, Queensland from 22 to 26 October 1984.

Environment
PROJECT NUMBER • 2017-094
PROJECT STATUS:
COMPLETED

NCCP: Review of Carp control via commercial exploitation

The present study, undertaken by Charles Sturt University, was developed to investigate the potential for commercial, or subsidised, fishery exploitation to effectively control carp populations in Australia. Using published literature examples of fish (and other) vertebrate pest-removal...
ORGANISATION:
La Trobe University Mildura Campus
Industry
View Filter

Species

Organisation