20 results
PROJECT NUMBER
•
1999-215
PROJECT STATUS:
COMPLETED
This project has increased our understanding of the importance of seagrass habitats to larger, commercially valuable, species of fish by combining experimental and correlative scientific principles. We found that many small fish use seagrass habitats for nutrition and to avoid predation by large...
ORGANISATION:
University of Melbourne
PROJECT NUMBER
•
1995-004
PROJECT STATUS:
COMPLETED
In situ time-stamping of abalone shells to determine how abalone stocks can be aged.
If abalone can be accurately aged, this would be a fundamental tool for more effective management of abalone fisheries. Several authors have proposed ageing abalone by grinding or cutting abalone shells, and counting the shell layers deposited beneath the spire. Other authors have cast...
ORGANISATION:
University of Melbourne
PROJECT NUMBER
•
1993-085
PROJECT STATUS:
COMPLETED
Test of method for telling moult stage of spiny lobsters
The fishing industry needs accurate ways to measure the age of animals to manage their populations better. The project shows that researchers studied the growth of receptors in crabs and lobsters to see if they could be used to determine age. They found that counting the number of receptors is only...
ORGANISATION:
University of Melbourne
PROJECT NUMBER
•
1992-044
PROJECT STATUS:
COMPLETED
ORGANISATION:
University of Melbourne
PROJECT NUMBER
•
1992-040
PROJECT STATUS:
COMPLETED
Investigation of methods to age abalone
Management of the valuable Australian abalone fishery is difficult because catch/effort information for abalone does not provide warnings of declining stocks. In fact abalone fisheries in Alaska, California and Mexico have collapsed or declined dramatically, with little warning. Management must rely...
ORGANISATION:
University of Melbourne
Investigation of the impact of the seastar Coscinasterias calamaria on commercial mollusc fisheries
Project number:
1986-092
Project Status:
Completed
Budget expenditure:
$0.00
Principal Investigator:
Gregory Jenkins
Organisation:
University of Melbourne
Project start/end date:
28 Dec 1989
-
31 Dec 1989
Contact:
FRDC
1. Evaluate how much of a threat Coscinasterias calamaria poses to demersal mollusc fisheries
2. Estimate feed rate on important molluscs, by examining density & feeding strategy of adult starfish
time to digest before searching further
how prey avoid capture.
Final report
Author:
Dr R.W. Day
Final Report
•
1989-12-31
•
513.37 KB
1986-092-DLD.pdf
The large starfish, Coscinasterias calamaria is known to feed on commercially exploited molluscs, including blacklip abalone (Haliotis rubra), mussels (Mytilus edulis) and scallops (Pecten irradians).
The study investigated the abundance of the seastar on reefs in Port Phillip Bay, and the extent to which it reduces stocks of the blacklip abalone on these reefs. It is recommended that abalone divers note when there appear to be very few small mussels on offshore reefs early in the year, as this may provide a warning of possible depletion of abalone stocks later. Preventative measures could then be taken.
PROJECT NUMBER
•
1985-089
PROJECT STATUS:
COMPLETED
ORGANISATION:
University of Melbourne
TAGS
PROJECT NUMBER
•
1985-088
PROJECT STATUS:
COMPLETED
ORGANISATION:
University of Melbourne
PROJECT NUMBER
•
1983-013
PROJECT STATUS:
COMPLETED
ORGANISATION:
University of Melbourne
PROJECT NUMBER
•
1982-037
PROJECT STATUS:
COMPLETED
ORGANISATION:
University of Melbourne
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