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Environment
Environment

Dependence of commercially import fish on krill as a food source in south-east Tasmania

Project number: 1979-005
Project Status:
Completed
Budget expenditure: $0.00
Organisation: University of Tasmania (UTAS)
Project start/end date: 28 Dec 1981 - 31 Dec 1981
Contact:
FRDC
TAGS
Stock Assessment
Seafood Quality
Post Harvest
Market Opportunities
Laboratory Procedures

Objectives

1. Estimate abundance & production of krill (especially Nyctiphanes australis) in an area of sth-east Tas coastal waters.
2. Study growth & moulting of N. australis to provide data for production estimates.
3. Identify the major predators & estimate their consumption

Final report

Final Report • 1981-12-31 • 6.16 MB
1979-005-DLD.pdf

Summary

This final report on the project describes data on stomach contents of major fish predators of the euphausiid Nyctiphanes australis.

The study has concluded that: size and stock of krill and its production can be calculated with some degree of confidence; major predators of adult krill can be identified though the greatest mortality, which occurs in the larval stages, is probably due to carnivorous zooplankters; and swarming by krill is of extreme importance in increasing the attraction of krill as food.

Final Report • 1981-12-31 • 6.16 MB
1979-005-DLD.pdf

Summary

This final report on the project describes data on stomach contents of major fish predators of the euphausiid Nyctiphanes australis.

The study has concluded that: size and stock of krill and its production can be calculated with some degree of confidence; major predators of adult krill can be identified though the greatest mortality, which occurs in the larval stages, is probably due to carnivorous zooplankters; and swarming by krill is of extreme importance in increasing the attraction of krill as food.

Final Report • 1981-12-31 • 6.16 MB
1979-005-DLD.pdf

Summary

This final report on the project describes data on stomach contents of major fish predators of the euphausiid Nyctiphanes australis.

The study has concluded that: size and stock of krill and its production can be calculated with some degree of confidence; major predators of adult krill can be identified though the greatest mortality, which occurs in the larval stages, is probably due to carnivorous zooplankters; and swarming by krill is of extreme importance in increasing the attraction of krill as food.

Final Report • 1981-12-31 • 6.16 MB
1979-005-DLD.pdf

Summary

This final report on the project describes data on stomach contents of major fish predators of the euphausiid Nyctiphanes australis.

The study has concluded that: size and stock of krill and its production can be calculated with some degree of confidence; major predators of adult krill can be identified though the greatest mortality, which occurs in the larval stages, is probably due to carnivorous zooplankters; and swarming by krill is of extreme importance in increasing the attraction of krill as food.

Final Report • 1981-12-31 • 6.16 MB
1979-005-DLD.pdf

Summary

This final report on the project describes data on stomach contents of major fish predators of the euphausiid Nyctiphanes australis.

The study has concluded that: size and stock of krill and its production can be calculated with some degree of confidence; major predators of adult krill can be identified though the greatest mortality, which occurs in the larval stages, is probably due to carnivorous zooplankters; and swarming by krill is of extreme importance in increasing the attraction of krill as food.

Final Report • 1981-12-31 • 6.16 MB
1979-005-DLD.pdf

Summary

This final report on the project describes data on stomach contents of major fish predators of the euphausiid Nyctiphanes australis.

The study has concluded that: size and stock of krill and its production can be calculated with some degree of confidence; major predators of adult krill can be identified though the greatest mortality, which occurs in the larval stages, is probably due to carnivorous zooplankters; and swarming by krill is of extreme importance in increasing the attraction of krill as food.

Final Report • 1981-12-31 • 6.16 MB
1979-005-DLD.pdf

Summary

This final report on the project describes data on stomach contents of major fish predators of the euphausiid Nyctiphanes australis.

The study has concluded that: size and stock of krill and its production can be calculated with some degree of confidence; major predators of adult krill can be identified though the greatest mortality, which occurs in the larval stages, is probably due to carnivorous zooplankters; and swarming by krill is of extreme importance in increasing the attraction of krill as food.

Final Report • 1981-12-31 • 6.16 MB
1979-005-DLD.pdf

Summary

This final report on the project describes data on stomach contents of major fish predators of the euphausiid Nyctiphanes australis.

The study has concluded that: size and stock of krill and its production can be calculated with some degree of confidence; major predators of adult krill can be identified though the greatest mortality, which occurs in the larval stages, is probably due to carnivorous zooplankters; and swarming by krill is of extreme importance in increasing the attraction of krill as food.

Final Report • 1981-12-31 • 6.16 MB
1979-005-DLD.pdf

Summary

This final report on the project describes data on stomach contents of major fish predators of the euphausiid Nyctiphanes australis.

The study has concluded that: size and stock of krill and its production can be calculated with some degree of confidence; major predators of adult krill can be identified though the greatest mortality, which occurs in the larval stages, is probably due to carnivorous zooplankters; and swarming by krill is of extreme importance in increasing the attraction of krill as food.

Final Report • 1981-12-31 • 6.16 MB
1979-005-DLD.pdf

Summary

This final report on the project describes data on stomach contents of major fish predators of the euphausiid Nyctiphanes australis.

The study has concluded that: size and stock of krill and its production can be calculated with some degree of confidence; major predators of adult krill can be identified though the greatest mortality, which occurs in the larval stages, is probably due to carnivorous zooplankters; and swarming by krill is of extreme importance in increasing the attraction of krill as food.

Final Report • 1981-12-31 • 6.16 MB
1979-005-DLD.pdf

Summary

This final report on the project describes data on stomach contents of major fish predators of the euphausiid Nyctiphanes australis.

The study has concluded that: size and stock of krill and its production can be calculated with some degree of confidence; major predators of adult krill can be identified though the greatest mortality, which occurs in the larval stages, is probably due to carnivorous zooplankters; and swarming by krill is of extreme importance in increasing the attraction of krill as food.

Final Report • 1981-12-31 • 6.16 MB
1979-005-DLD.pdf

Summary

This final report on the project describes data on stomach contents of major fish predators of the euphausiid Nyctiphanes australis.

The study has concluded that: size and stock of krill and its production can be calculated with some degree of confidence; major predators of adult krill can be identified though the greatest mortality, which occurs in the larval stages, is probably due to carnivorous zooplankters; and swarming by krill is of extreme importance in increasing the attraction of krill as food.

Final Report • 1981-12-31 • 6.16 MB
1979-005-DLD.pdf

Summary

This final report on the project describes data on stomach contents of major fish predators of the euphausiid Nyctiphanes australis.

The study has concluded that: size and stock of krill and its production can be calculated with some degree of confidence; major predators of adult krill can be identified though the greatest mortality, which occurs in the larval stages, is probably due to carnivorous zooplankters; and swarming by krill is of extreme importance in increasing the attraction of krill as food.

Final Report • 1981-12-31 • 6.16 MB
1979-005-DLD.pdf

Summary

This final report on the project describes data on stomach contents of major fish predators of the euphausiid Nyctiphanes australis.

The study has concluded that: size and stock of krill and its production can be calculated with some degree of confidence; major predators of adult krill can be identified though the greatest mortality, which occurs in the larval stages, is probably due to carnivorous zooplankters; and swarming by krill is of extreme importance in increasing the attraction of krill as food.

Final Report • 1981-12-31 • 6.16 MB
1979-005-DLD.pdf

Summary

This final report on the project describes data on stomach contents of major fish predators of the euphausiid Nyctiphanes australis.

The study has concluded that: size and stock of krill and its production can be calculated with some degree of confidence; major predators of adult krill can be identified though the greatest mortality, which occurs in the larval stages, is probably due to carnivorous zooplankters; and swarming by krill is of extreme importance in increasing the attraction of krill as food.

Final Report • 1981-12-31 • 6.16 MB
1979-005-DLD.pdf

Summary

This final report on the project describes data on stomach contents of major fish predators of the euphausiid Nyctiphanes australis.

The study has concluded that: size and stock of krill and its production can be calculated with some degree of confidence; major predators of adult krill can be identified though the greatest mortality, which occurs in the larval stages, is probably due to carnivorous zooplankters; and swarming by krill is of extreme importance in increasing the attraction of krill as food.

Final Report • 1981-12-31 • 6.16 MB
1979-005-DLD.pdf

Summary

This final report on the project describes data on stomach contents of major fish predators of the euphausiid Nyctiphanes australis.

The study has concluded that: size and stock of krill and its production can be calculated with some degree of confidence; major predators of adult krill can be identified though the greatest mortality, which occurs in the larval stages, is probably due to carnivorous zooplankters; and swarming by krill is of extreme importance in increasing the attraction of krill as food.

Final Report • 1981-12-31 • 6.16 MB
1979-005-DLD.pdf

Summary

This final report on the project describes data on stomach contents of major fish predators of the euphausiid Nyctiphanes australis.

The study has concluded that: size and stock of krill and its production can be calculated with some degree of confidence; major predators of adult krill can be identified though the greatest mortality, which occurs in the larval stages, is probably due to carnivorous zooplankters; and swarming by krill is of extreme importance in increasing the attraction of krill as food.

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