eCite Digital Repository
Regional patterns in puerulus catches from eastern and western Tasmania
Citation
Cohen, PJ and Gardner, C, Regional patterns in puerulus catches from eastern and western Tasmania, Journal of Crustacean Biology, 27, (4) pp. 592-596. ISSN 0278-0372 (2007) [Refereed Article]
DOI: doi:10.1651/S-2736.1
Abstract
Approximately 65% of Tasmania's southern rock lobster Jasus edwardsii catch is taken from the west coast. Fishers from the west coast have reported that many inshore sites that were productive 10 or 15 years ago are no longer productive so that they now receive reduced effort, with effort displaced into other regions. The failure of stocks to recover in these sites despite widespread increase in biomass in the Tasmanian fishery overall suggests that recruitment to the inshore west may be low. This was investigated from puerulus catch monitoring, which has been conducted using crevice collectors at 28 sites around the Tasmanian coast at various periods. Catches at the 8 sites off the west coast (0.24 ± 0.06 mean pueruli per collector per month) have been consistently lower than those from the 18 sites off eastern Tasmania ( 1.68 ± 0.12 mean pueruli per collector per month). This spatial pattern supports the hypothesis that low recruitment to inshore west coast areas results in a population that is not robust to fishing pressure. Regional differences in recruitment point to the need to incorporate spatial components into management of rock lobsters.
Item Details
Item Type: | Refereed Article |
---|---|
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: | Cohen, PJ (Miss Philippa Cohen) |
UTAS Author: | Gardner, C (Professor Caleb Gardner) |
ID Code: | 50922 |
Year Published: | 2007 |
Web of Science® Times Cited: | 3 |
Deposited By: | TAFI - Marine Research Laboratory |
Deposited On: | 2007-08-01 |
Last Modified: | 2008-05-26 |
Downloads: | 0 |
Repository Staff Only: item control page