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Large-scale patterns in puerulus settlement and links to fishery recruitment in the southern rock lobster (Jasus edwardsii), across south-eastern Australia

Citation

Linnane, A and McGarvey, R and Gardner, C and Walker, TI and Matthews, J and Green, BS and Punt, AE, Large-scale patterns in puerulus settlement and links to fishery recruitment in the southern rock lobster (Jasus edwardsii), across south-eastern Australia, ICES Journal of Marine Science pp. 1-9. ISSN 1054-3139 (2013) [Refereed Article]

Copyright Statement

Copyright 2013 International Council for the Exploration of the Sea

DOI: doi:10.1093/icesjms/fst176

Abstract

Monthly monitoring of puerulus settlement across South Australia, Victoria and Tasmania has been undertaken since the early 1990s. Firstly, annual trends in settlement were spatially analysed across the three States. In South Australian and Victorian settlement patterns were closely related. In Tasmania, settlement sites along the northeast coast were positively correlated, but showed no relationship with areas further south or in any other State. Secondly, annual settlement indices were correlated with lagged estimates of fishery recruitment. In South Australia, the strongest correlations between settlement and recruitment to legal size were observed using a 4–5- year time-lag. Within Victoria and Tasmania, the period from settlement to recruitment at 60 mm carapace length (CL) was 2 and 3 years, respectively. The period from 60 mmto legal size wais another 2–3 years, suggesting that the total time from settlement to the fishery ranges from 4–6 years in these regions. The correlation between settlement and recruitment was used to forecast future estimates of exploitable biomass in one region of South Australia. The results indicate that puerulus monitoring is a relatively robust indicator of future fishery performance and should be regarded as an important data source for rock lobster resources within south-eastern Australia.

Item Details

Item Type:Refereed Article
Keywords:forecasting, Jasus edwardsii, spiny lobster, puerulus, recruitment, settlement
Research Division:Agricultural and Veterinary Sciences
Research Group:Fisheries Sciences
Research Field:Fisheries Management
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - Wild Caught
Objective Field:Wild Caught Rock Lobster
Author:Gardner, C (Professor Caleb Gardner)
Author:Green, BS (Associate Professor Bridget Green)
ID Code:87595
Year Published:2013
Web of Science® Times Cited:9
Deposited By:Sustainable Marine Research Collaboration
Deposited On:2013-11-26
Last Modified:2014-06-05
Downloads:0

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