The impact of global positioning systems and plotters on fishing power in the northern prawn fishery, Australia

Robins, C. M., Wang, Y-G., & Die, D. (1998) The impact of global positioning systems and plotters on fishing power in the northern prawn fishery, Australia. Canadian Journal of Fisheries and Aquatic Sciences, 55(7), pp. 1645-1651.

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Abstract

The impact of global positioning systems (GPS) and plotter systems on the relative fishing power of the northern prawn fishery fleet on tiger prawns (Penaeus esculentus Haswell, 1879, and P. semisulcatus de Haan, 1850) was investigated from commercial catch data. A generalized linear model was used to account for differences in fishing power between boats and changes in prawn abundance. It was found that boats that used a GPS alone had 4% greater fishing power than boats without a CPS. The addition of a plotter raised the power by 7% over boats without the equipment. For each year between the first to third that a fisher has been working with plotters, there is an additional 2 or 3% increase. It appears that when all boats have a GPS and plotter for at least 3 years, the fishing power of the fleet will increase by 12%. Management controls have reduced the efficiency of each boat and lowered the number of days available to fish, but this may not have been sufficient to counteract the increases. Further limits will be needed to maintain the desired levels of mortality.

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61 citations in Scopus
62 citations in Web of Science®
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ID Code: 90618
Item Type: Journal Article
Refereed: Yes
Additional Information: ISI Document Delivery No.: 124HL
Times Cited: 59
Cited Reference Count: 26
Robins, CM Wang, YG Die, D
Natl research council canada
Ottawa
Keywords: catch, fleet
DOI: 10.1139/cjfas-55-7-1645
ISSN: 0706-652X
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: © NRC Canada
Deposited On: 22 Nov 2015 22:13
Last Modified: 22 Nov 2015 22:13

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