The Cost of Co-viability in the Australian Northern Prawn Fishery

Type Article
Date 2016-06
Language English
Author(s) Gourguet SophieORCID1, Thebaud OlivierORCID1, 2, Jennings Sarah3, 5, Little L. Richard4, 5, Dichmont Catherine M.6, Pascoe Sean5, 6, Deng Roy A.5, Doyen Luc7
Affiliation(s) 1 : IFREMER, AMURE, Unite Econ Maritime, UMR M101, BP 70, F-29280 Plouzane, France.
2 : Queensland Univ Technol, Sch Econ & Finance, Brisbane, Qld 4001, Australia.
3 : Univ Tasmania, Tasmanian Sch Business & Econ, Private Bag 84, Hobart, Tas 7000, Australia.
4 : CSIRO, Oceans & Atmosphere Flagship, POB 1538, Hobart, Tas 7001, Australia.
5 : Univ Tasmania, Ctr Marine Socioecol, Private Bag 129, Hobart, Tas 7000, Australia.
6 : CSIRO, Oceans & Atmosphere, POB 2583, Brisbane, Qld 4001, Australia.
7 : Univ Bordeaux, CNRS, GREThA, Ave Leon Duguit, F-33608 Pessac, France.
Source Environmental Modeling & Assessment (1420-2026) (Springer), 2016-06 , Vol. 21 , N. 3 , P. 371-389
DOI 10.1007/s10666-015-9486-y
WOS© Times Cited 14
Keyword(s) Bio-economic modeling, Co-viability cost, Conflicting management objectives, Trawling impacts, Uncertainty, Northern prawn fishery
Abstract Fisheries management must address multiple, often conflicting objectives in a highly uncertain context. In particular, while the bio-economic performance of trawl fisheries is subject to high levels of biological and economic uncertainty, the impact of trawling on broader biodiversity is also a major concern for their management. The purpose of this study is to propose an analytical framework to formally assess the trade-offs associated with balancing biological, economic and non-target species conservation objectives. We use the Australian Northern Prawn Fishery (NPF), which is one of the most valuable federally managed commercial fisheries in Australia, as a case study. We develop a stochastic co-viability assessment of the fishery under multiple management objectives. Results show that, due to the variability in the interactions between the fishery and the ecosystem, current management strategies are characterized by biological and economic risks. Results highlight the trade-offs between respecting biological, economic and non-target species conservation constraints at each point in time with a high probability and maximizing the net present value of the fishery.
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