Kienzle, Marco and Courtney, Anthony J. and O’Neill, Michael F. (2014) Environmental and fishing effects on the dynamics of brown tiger prawn (Penaeus esculentus) in Moreton Bay (Australia). Fisheries Research, 155 . pp. 138-148. ISSN 0165-7836
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Article Link(s): http://dx.doi.org/10.1016/j.fishres.2014.02.030
This analysis of the variations of brown tiger prawn (Penaeus esculentus) catch in Moreton Bay multispecies trawl fishery estimated catchability using a delay difference model. It integrated several factors responsible for variations in catchability: targeting of fishing effort, increasing fishing power and changing availability. An analysis of covariance was used to define fishing events targeted at brown tiger prawns. A general linear model estimated inter-annual variations of fishing power. Temperature-induced changes in prawn behaviour played an important role on the dynamics of this fishery. Maximum likelihood estimates of targeted catchability (4.09 ± 0.42 × 10−4 boat-day−1) were twice as large as non-targeted catchability (1.86 ± 0.25 × 10−4 boat-day−1). The causes of recent declines in fishing effort in this fishery were discussed.
|Business groups:||Animal Science|
|Keywords:||Tiger prawns Stock assessment Delay-difference model Stock-recruitment Catchability|
|Subjects:||Aquaculture and Fisheries > Fisheries > Fishery research|
Aquaculture and Fisheries > Fisheries > Shellfish fisheries
Aquaculture and Fisheries > Fisheries > Fishery conservation
|Deposited On:||13 May 2014 05:26|
|Last Modified:||13 May 2014 05:26|
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