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Environment
Environment
People
People
PROJECT NUMBER • 2012-011
PROJECT STATUS:
COMPLETED

Revolutionising fish ageing: Using Near Infrared Spectroscopy to Age Fish

Results from the current ‘proof of concept’ study indicate that near infrared (NIR) spectra collected from fish otoliths have potential to estimate the age of Barramundi (Lates calcarifer) and Snapper (Pagrus auratus), with performance varying between species and locality of capture. A...
ORGANISATION:
Department of Primary Industries (QLD)
Environment
Environment
Environment
Environment
PROJECT NUMBER • 1985-053
PROJECT STATUS:
COMPLETED

The development of an index for the prediction of catches of blacklip and greenlip abalone, and a technique for ageing these species

The scientific literature has generally accepted that abalone populations are characterised by low levels of settlement and recruitment (Tegner in press), that mortality is relatively low (Doi et al. 1977; Beinssen and Powell 1979; Sainsbury 1982; Shepherd et al. 1982; Fournier and Breen 1983) and...
ORGANISATION:
Department of Natural Resources and Environment Tasmania (NRE TAS)

People development program: 2013 Visiting Expert Bursary - Dr Raouf Kalida

Project number: 2008-328.19
Project Status:
Completed
Budget expenditure: $7,940.00
Principal Investigator: Mark Grubert
Organisation: Department of Agriculture and Fisheries (NT)
Project start/end date: 30 Jun 2013 - 30 Aug 2014
Contact:
FRDC

Need

Crustacean fisheries (such as those targeting rock losters, crabs and prawns) contribute more than a billion dollars to the Australian economy annually. Population models for stocks that support these fisheries often rely on indirect measures of age (e.g. size-modal analysis) which can confound estimates of other life history parameters and introduce errors into the modelling process.

A method to directly age commercially exploited crustaceans (by counting growth bands in calcified regions of the eyestalk and/or the gastric mill) has been developed by Dr Raouf Kalida at the University of New Brunswick, Canada and published last year. His technique has the potential to substantially improve the precision of stock assessments on crustacean fisheries around the world.

There is a need to transfer this technology to fisheries research agencies in Australia so that we can better understand growth patterns in crustaceans, reduce uncertainty in crustacean population models and provide better advice to fishery managers. This in turn should lead to improved management practices and greater stability in the national crustacean harvest, noting that production by several crustacean fisheries is also strongly linked to environmental factors.

The most effective means to address this need is to host Dr Kalida in Australia for a period of time to share his knowledge of crustacean ageing and provide guidance to domestic fisheries scientists working in the field. The proposed project aligns with a number of FRDC Strategic Priority Areas including: Theme 4 (Ecologically Sustainable Development), Theme 13 (Innovation Skills) and Theme 14 (Extension and Adoption).

Objectives

1. Transfer knowledge regarding crustacean ageing techniques to Australian fisheries scientists
2. Provide this group with practical experience in crustacean ageing techniques
3. Facilitate the exchange of ideas between fisheries scientists
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