Changes in fishing effort efficiency under effort and quota management systems applied to the Western Australian rock lobster fishery

2018 ◽  
Vol 94 (3) ◽  
pp. 1077-1094
Author(s):  
S de Lestang ◽  
JW Penn ◽  
N Caputi
Keyword(s):  
Fishing Effort ◽  
Management Systems ◽  
Rock Lobster ◽  
Lobster Fishery ◽  
Quota Management ◽  
Western Australian

Restructuring the Tasmanian rock-lobster fishery - the effect of two years of management under individual transferable quotas

2001 ◽  
Vol 52 (8) ◽  
pp. 1641 ◽  
Author(s):  
Wes Ford ◽  
Wes Ford
Keyword(s):  
Egg Production ◽  
Fishing Effort ◽  
Rock Lobster ◽  
Quota System ◽  
Individual Transferable Quotas ◽  
Fishing Vessels ◽  
Early Results ◽  
Lobster Fishery ◽  
Quota Management ◽  
One Year

Individual transferable quotas were successfully introduced into the Tasmanian rock-lobster fishery in 1998. In the two years since, significant industry restructuring has occurred. The move to quota management was intended to meet two key objectives: to reduce the catch to a sustainable level, allowing the stock to rebuild, and to provide a mechanism whereby the industry could achieve economic sustainability. The quota system has achieved early results on both the sustainability and restructuring objectives and is now well accepted and supported by the vast majority of fishers and licence holders. Its effect has been to reduce fishing effort by 29% and number of fishing vessels by 23%, and the reduction in catch has resulted in a 6% increase in the estimated biomass and substantial increases in egg production after one year. Fishers now spend fewer days at sea, and catch rates are improving. These changes are reducing fishing costs, which in time should increase profitability. Social costs of introducing quotas are that fewer fishers are employed on vessels and that fishers now find it harder and more expensive to lease a fishing licence. These costs must be factored into any assessment of the industry.

scholarly journals Evaluating the ecosystem effects of variation in recruitment and fishing effort in the western rock lobster fishery

2013 ◽  
Vol 145 ◽  
pp. 128-135 ◽  
Author(s):  
Hector Lozano-Montes ◽  
Neil R. Loneragan ◽  
Russ Babcock ◽  
Nick Caputi
Keyword(s):  
Fishing Effort ◽  
Rock Lobster ◽  
Ecosystem Effects ◽  
Lobster Fishery

From Input Controls to Quota Management in the Tasmanian Rock Lobster Fishery

2000 ◽  
Vol 56 (2) ◽  
pp. 32-41 ◽  
Author(s):  
MATT BRADSHAW ◽  
SANDRA WILLIAMSON ◽  
LES WOOD
Keyword(s):  
Rock Lobster ◽  
Lobster Fishery ◽  
Quota Management

The quandary of quota management in the Torres Strait rock lobster fishery

2013 ◽  
Vol 20 (4) ◽  
pp. 326-337 ◽  
Author(s):  
I. van Putten ◽  
R. Deng ◽  
D. Dennis ◽  
T. Hutton ◽  
S. Pascoe ◽  
...  
Keyword(s):  
Rock Lobster ◽  
Lobster Fishery ◽  
Torres Strait ◽  
Quota Management

Measurement of Catch and Fishing Effort in the Western Rock Lobster Fishery

2008 ◽  
pp. 334-356 ◽  
Author(s):  
N. Caputi ◽  
C.F. Chubb ◽  
N.G. Hall ◽  
R.S. Brown
Keyword(s):  
Fishing Effort ◽  
Rock Lobster ◽  
Lobster Fishery

Limited Entry in the Western Australian Rock Lobster and Prawn Fisheries: An Economic Evaluation

1979 ◽  
Vol 36 (7) ◽  
pp. 789-798 ◽  
Author(s):  
T. F. Meany
Keyword(s):  
Economic Evaluation ◽  
Key Words ◽  
Rock Lobster ◽  
Limited Entry ◽  
Lobster Fishery ◽  
High Degree ◽  
Western Australian

Limited entry was first introduced into the rock lobster and prawn fisheries in 1963. Both fisheries have been characterized by rapidly rising prices for species caught. Although some sectors of the rock lobster fishery have remained moderately profitable, excessive reinvestment in boats and equipment has greatly reduced potential profitability. No trend towards company ownership of boats has been evident in this fishery. The prawn fishery was initially developed with a high degree of company ownership and the proportion of company ownership has increased. Overcapitalization has not occurred to any great extent in this fishery and profitability has remained high. Key words: rock lobster, prawns, limited entry, Australia, economics, overcapitalization, monopoly

Spatial Model for the Population Dynamics and Exploitation of the Western Australian Rock Lobster, Panulirus cygnus

1993 ◽  
Vol 50 (8) ◽  
pp. 1650-1662 ◽  
Author(s):  
Carl J. Walters ◽  
Norm Hall ◽  
Rhys Brown ◽  
Chris Chubb
Keyword(s):  
Carapace Length ◽  
Temporal Dynamics ◽  
Population Analysis ◽  
Fishing Effort ◽  
Management Policy ◽  
Rock Lobster ◽  
Breeding Grounds ◽  
Panulirus Cygnus ◽  
Biological Assessments ◽  
Western Australian

There is concern about whether long-standing regulatory measures (size and effort limits) are adequate to protect spawning stocks of the Western Australian rock lobster, Panulirus cygnus, and assure the highest average yields. Virtual population analysis and tagging studies indicate that exploitation rates are extremely high (possibly exceeding 70%/yr) on younger, mainly immature lobsters. To predict the efficacy of alternative regulatory schemes, it has been necessary to explicitly model the spatial and temporal dynamics of lobster abundance and fishing effort. Puerulus settlement (at age 9–11 mo) is mainly into shallow-water (< 40 m) areas, and at 3–5 yr of age in most areas, there is a migration into deeper water where the animals mature after a further 1–2 yr. The size at migration (70–90 mm carapace length) ensures that at least some animals will have a chance to reach the breeding grounds offshore, where fishing effort has historically been lower than inshore, before they reach the minimum legal size (76 mm carapace length). By explicitly modelling the effort distribution as well as lobster movement and stock distribution, we hope to anticipate some consequences of changes in management policy that could not be predicted from biological assessments alone.

scholarly journals Partial fishing mortality per fishing trip: a useful indicator of effective fishing effort in mixed demersal fisheries

2006 ◽  
Vol 63 (3) ◽  
pp. 556-566 ◽  
Author(s):  
Adriaan D. Rijnsdorp ◽  
Niels Daan ◽  
Willem Dekker
Keyword(s):  
Fishing Effort ◽  
Fine Tuning ◽  
Positive Trend ◽  
Fishing Mortality ◽  
Auxiliary Equipment ◽  
Solea Solea ◽  
Seasonal And Spatial Variations ◽  
Sea Beam ◽  
Quota Management ◽  
Engine Power

Abstract Effort management has been proposed as an alternative for quota management in mixed demersal fisheries. It requires a metric to estimate the fishing mortality imposed by a given quantity of nominal fishing effort. Here, we estimate the partial fishing mortality rate imposed by one unit of fishing effort (Fpue) during individual fishing trips and explore the usefulness of this indicator for managing North Sea beam trawlers >300 hp targeting sole (Solea solea) and plaice (Pleuronectes platessa). Fpue is positively related to vessel engine power, and increased annually by 2.8% (sole) and 1.6% (plaice). The positive trend was due to an increase in skipper skills and investment in auxiliary equipment, the replacement of old vessels by new ones and, to a lesser extent, to upgrade engines. The average Fpue imposed per day at sea by a 2000 hp beam trawler was estimated to be 1.0 × 10−5 (sole) and 0.6 × 10−5 (plaice), and it showed substantial seasonal and spatial variations. The Fpue of sole and plaice were negatively related in summer and showed no relationship in winter. The existence of predictive seasonal and spatial patterns in Fpue opens up the possibility of fine-tuning management by directed effort restrictions and uncoupling management of plaice and sole.

scholarly journals Changes in the lease and permanent sale quota markets of a rock lobster fishery in response to stock abundance

2015 ◽  
Vol 72 (5) ◽  
pp. 1555-1564 ◽  
Author(s):  
Rafael León ◽  
Caleb Gardner ◽  
Ingrid van Putten ◽  
Klaas Hartmann
Keyword(s):  
Granger Causality Test ◽  
Economic Rent ◽  
Rock Lobster ◽  
Markov Modelling ◽  
Causality Test ◽  
Individual Transferable Quotas ◽  
Theoretical Pattern ◽  
Lobster Fishery ◽  
Trade Market ◽  
Stock Abundance

AbstractEffective individual transferable quotas (ITQ) systems rebuild stocks and allow transfer of quotas to more efficient operators. This process requires functional markets for both quota sales and temporary quota leases. These markets are expected to respond to changes in economic rent from the fishery, which is influenced by stock abundance and the international rock lobster price. This research used multistate Markov modelling and Granger causality test to examine changes in the permanent and temporary quota trade in the Tasmanian rock lobster fishery quota market, during periods of both increasing and decreasing stock abundance. The permanent quota trade market was more active during the period of stock growth, while the quota lease market was active in both periods of stock growth and decline. In contrast to theoretical trends in ITQ fisheries, trades in both markets were not linked to the technical efficiency (i.e. catching capability) of operators, but were more driven by the quota owners' financial capacity (i.e. number of owned quotas). Prolonged and unexpected stock decline affected the quota market so that it deviated from the theoretical pattern of ITQ fisheries. Operators previously active in the market reduced their activity, while smaller operators and firms that previously had not traded became more active, so the fleet expanded with smaller operators entering.

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