Management strategies for short lived species: The case of Australia's Northern Prawn Fishery

Dichmont, Catherine M.; Deng, Roy A.; Punt, André E.; Venables, W. N.; Haddon, Malcolm

doi:10.1016/j.fishres.2006.06.009

Cited by 45 publications

(44 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Within the context of whale management, IWC (1992) showed that unintended stock depletion was likely if assessments are conducted based on data for large areas, but catches are concentrated spatially, even when management is based on a feedback control management strategy, whereas Dichmont et al (2006) highlighted the impact of the inability to spreadremovals spatially on conservation performance for a prawn fishery in northern Australia. The results of this study confirm those of these earlier studies and suggest that assessment and management based on areas that are larger than those in which individual stocks are found often lead to an inability to achieve conservation objectives.…”

Section: Conservation-related Performance Measures (%)mentioning

confidence: 99%

Management strategy evaluation for rock lobster,Jasus edwardsii, off Victoria, Australia: Accounting for uncertainty in stock structure

Punt

Hobday²

2009

New Zealand Journal of Marine and Freshwater Research

Self Cite

View full text Add to dashboard Cite

The management strategy evaluation (MSE) approach was used to evaluate management strategies based on the current method of stock assessment for rock lobster (Jasus edwardsii) off Victoria, Australia, and decision rules inferred from the management plan for Victorian rock lobster and past practice when selecting total allowable catches, TACs. The results are expressed in terms of whether it is possible to keep stocks above limit reference points with high probability and recover overexploited stocks to the target level. Three categories of management strategy were examined using the MSE, which differed in whether assessments were conducted, and TACs set, by management zone or by region within management zone. A management strategy based on conducting assessments and setting TACs by management zone is most similar to the way assessments are currently conducted and management regulations implemented for rock lobster off Victoria. However, this management strategy performed poorest in recovering stocks to target levels. Alternative management strategies which involved conducting assessments and setting TACs by region performed better, but may have practical limitations. The assessment method was found to be generally relatively accurate and precise, although estimation performance was poor/imprecise on occasion.

show abstract

Section: Conservation-related Performance Measures (%)mentioning

confidence: 99%

Management strategy evaluation for rock lobster,Jasus edwardsii, off Victoria, Australia: Accounting for uncertainty in stock structure

Punt

Hobday²

2009

New Zealand Journal of Marine and Freshwater Research

Self Cite

View full text Add to dashboard Cite

show abstract

“…De esta manera, la proporción de especies desde la frecuencia de tamaños en la captura y desde los muestreos de los cruceros acústicos, podría convertirse en un indicador empírico sobre la condición de las especies, en un contexto tal que condicione la regla de decisión de captura en perspectiva de la incidencia de una especie sobre la otra y al ciclo alternante contingente. Esta forma de manejo dentro de la temporada es aplicada en las pesquerías de langosta en Australia donde se asigna un nivel de esfuerzo pesquero por especie, área y semana, en relación a un modelo de asignación de esfuerzo que es similar a una regla de cosecha de captura (Dichmont et al, 2006). El otro tipo de alternancia entre las especies estudiadas es aquella relacionada con los reclutamientos.…”

Section: Discussionunclassified

Bases conceptuales para la aplicacion de una evaluacion de estrategias de manejo (EEM) en sardina comun (Strangomera bentincki) y anchoveta (Engraulis ringens) en la zona centro sur de Chile

Arteaga

Ernst²,

Vásquez³

et al. 2014

lajar

View full text Add to dashboard Cite

Bases conceptuales para la aplicación de una evaluación de estrategias de manejo (EEM) en sardina común (Strangomera bentincki) y anchoveta (Engraulis ringens)en la zona centro-sur de Chile RESUMEN. Se identifican los factores claves a considerar en el desarrollo de una evaluación de estrategias de manejo (EEM) para los recursos pequeños pelágicos en la zona de centro-sur de Chile, sardina común (Strangomera bentincki) y anchoveta (Engraulis ringens). En Chile, la EEM no ha sido aplicada al manejo de estas pesquerías y la asesoría científica se ha desarrollado sobre la evaluación de estrategias de explotación utilizando modelos de evaluación mono-específicos. Para ambas especies se analizan los siguientes tópicos: i) alternancia en la abundancia poblacional asociada a los pulsos de reclutamientos y capturas, ii) variabilidad temporal en la fuerza del reclutamiento, iii) estacionalidad del crecimiento cohorte y especie-específico, y iv) relación ambiente-recurso. Los resultados evidencian que los tópicos analizados debieran ser considerados en la construcción de un modelo operativo y/o en la regla de cosecha, dado el carácter mixto de ambas pesquerías, su marcada alternancia y la influencia de las condiciones ambientales. Por lo tanto, se propone que el diseño e implementación de una EEM para sardina común y anchoveta, incluya los elementos señalados en un marco de evaluación multi-especifico y de manejo de carácter mixto. Palabras clave: anchoveta; sardina común, modelo operativo, estrategias de manejo, ambiente-recurso, Pacífico suroriental. Conceptual bases for implementing a management strategy evaluation (MSE) for common sardine (Strangomera bentincki) and anchovy (Engraulis ringens) in south-central zone of ChileABSTRACT. Key factors to consider in the development of a management strategy evaluation (MSE) for small pelagic fish resources of south-central Chile, common sardine (Strangomera bentincki) and anchovy (Engraulis ringens) were identified. In Chile, MSE has not been applied to manage these fisheries and scientific advice has been developed on the evaluation of harvest strategies using single species stock assessment models. For both resources the following topics were analyzed: i) alternation of population abundance pulses associated with recruitment and catches, ii) temporal variability in recruitment strength, iii) seasonality of cohort and speciesspecific growth, and iv) relationship resource-environment. Results show that the topics analyzed in this work should be considered in the development of an operating model and/or harvest control rules, given the mixed nature of both fisheries, the marked alternation and the influence of environmental conditions. Therefore, it is proposed that the design and implementation of a MSE for sardine and anchovy complex, considers the elements outlined in this study and within the framework of multi-specific assessment and mixed fishery management.

show abstract

“…6 In this paper we use the Maximum Sustainable Yield, but any other reference point can be applied [17] objectives; in other words, it characterizes the trade offs between the two target objectives.…”

Section: Management Of the Fisherymentioning

confidence: 99%

“…Second, fishery researchers and international agencies have developed different methods to take into account the risk carried by different HCRs. In recent years, management strategy evaluation (MSE) has attempted to deal with this issue (Dichmont [17], Francis and Mace [29], Parma [30]). The goal is to understand the trade offs and limitations of a set of feasible management options, rather than obtaining the best or optimal solution.…”

Section: Introductionmentioning

confidence: 99%

On the Benefits of Including Age-Structure in Harvest Control Rules

Rocha

Mato‐Amboage²

2015

Environ Resource Econ

View full text Add to dashboard Cite

This paper explores the benefits of including age-structure in the control rule (HCR) when decision makers regard their (age-structured) models as approximations. We find that introducing age structure into the HCR reduces both the volatility of the spawning biomass and the yield. Although at a fairly imprecise level the benefits are lower, there are still major advantages for actual assessment precision of the case study. Moreover, we find that when age-structure is included in the HCR the relative ranking of different policies in terms of variance in biomass and yield does not differ. These results are shown both theoretically and numerically by applying the model to the Southern Hake fishery.

show abstract

Management strategies for short lived species: The case of Australia's Northern Prawn Fishery

Cited by 45 publications

References 11 publications

Management strategy evaluation for rock lobster,Jasus edwardsii, off Victoria, Australia: Accounting for uncertainty in stock structure

Management strategy evaluation for rock lobster,Jasus edwardsii, off Victoria, Australia: Accounting for uncertainty in stock structure

Bases conceptuales para la aplicacion de una evaluacion de estrategias de manejo (EEM) en sardina comun (Strangomera bentincki) y anchoveta (Engraulis ringens) en la zona centro sur de Chile

On the Benefits of Including Age-Structure in Harvest Control Rules

Contact Info

Product

Resources

About