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New puerulus collector design suitable for fishery-dependent settlement monitoring


Ewing, G and Frusher, S, New puerulus collector design suitable for fishery-dependent settlement monitoring, ICES Journal of Marine Science, 72, (Supplement 1) pp. i225-i231. ISSN 1054-3139 (2015) [Refereed Article]

Copyright Statement

Copyright 2015 International Council for the Exploration of the Sea

DOI: doi:10.1093/icesjms/fsv038


Fishery-independent diver-based puerulus settlement monitoring has been conducted for over two decades in sheltered inshore shallow sites on the Tasmanian coast and has been utilized in the development of a predictive capacity for the Tasmanian lobster fishery. However, the majority of catches in this fishery are sourced from deep (>50 m), remote, and highly exposed areas where it is impractical and expensive to conduct fishery independent routine settlement monitoring. To determine if pueruli settle in deeper waters,we adapted a crevice puerulus collector to fit within a lobster trap frame specifically designed to be deployed and serviced by vessels typical of the Tasmanian lobster fleet. A 5-month trial yielded puerulus catches similar to those from inshore shallow sites including recording puerulus from waters more than 100 m depth. The collector design was reported by fishers to be safe and convenient to service in regions exposed to strong westerly winds and swell more than 7 m. This collector will allow a cost-effective fishery-dependent approach to puerulus settlement monitoring utilizing commercial fishers for field operations and researchers for administration, sorting, and analysis.

Item Details

Item Type:Refereed Article
Keywords:co-management, Jasus edwardsii, puerulus, settlement
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Fisheries sciences
Research Field:Aquaculture and fisheries stock assessment
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - wild caught
Objective Field:Fisheries - wild caught not elsewhere classified
UTAS Author:Ewing, G (Mr Graeme Ewing)
UTAS Author:Frusher, S (Professor Stewart Frusher)
ID Code:100116
Year Published:2015
Web of Science® Times Cited:2
Deposited By:IMAS Research and Education Centre
Deposited On:2015-05-04
Last Modified:2017-11-04

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