Jeremy Prince

Jeremy Prince
Murdoch University · Centre for Fish, Fisheries and Aquatic Ecosystem Research

About

70
Publications
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Introduction
Prince’s doctoral dissertation on abalone became an international case study of the Tyranny of Scale which prevents 90% of marine resources being assessed because of their small scale and low value. In recent years Prince has made an exciting new breakthrough with size-based assessment of data-poor and small-scale fisheries and the first implementations are being funded by The Nature Conservancy, The David & Lucille Packard Foundation and USAID. Details will hopefully begin to be published soon.

Publications

Publications (70)
Article
Full-text available
The complexity and cost of assessment techniques prohibits their application to 90% of fisheries. Simple generic approaches are needed for the world's small-scale and data-poor fisheries. This meta-analysis of the relationship between spawning potential and the normalized size and age of 123 marine species suggests that the so-called Beverton–Holt...
Article
Full-text available
Evaluating the status of data-poor fish stocks is often limited by incomplete knowledge of the basic life history parameters: the natural mortality rate (M), the von Bertalanffy growth parameters (L1 and k), and the length at maturity (Lm). A common approach to estimate these individual parameters has been to use the Beverton–Holt life history inva...
Article
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Selectivity in fish is often size-dependent, which results in differential fishing mortality rates across fish of the same age, an effect known as "Lee’s Phenomenon". We extend previous work on using length composition to estimate the spawning potential ratio (SPR) for data-limited stocks by developing a computationally efficient length-structured...
Article
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The spawning potential ratio (SPR) is a well-established biological reference point, and estimates of SPR could be used to inform management decisions for data-poor fisheries. Simulations were used to investigate the utility of the length-based model (LB-SPR) developed in Hordyk et al. (this issue. Some explorations of the life history ratios to de...
Article
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As the world population grows, fisheries practitioners will be under increased pressure to address global challenges in data-limited fisheries management. With a focus on addressing localized and case-specific management needs, we provide a practical guide to the design and development of multi-indicator frameworks for fishery management. In a data...
Article
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Catastrophic overfishing of small-scale coastal fisheries through the Pacific poses a major threat to regional food security and biodiversity. Globally, approaches to fisheries assessment and management that were developed for industrial fisheries, are failing small-scale data-poor fisheries. The Pacific Community has called for a complete rethink...
Article
Quantitative assessment and management of small-scale fisheries is a persistent problem for fisheries. Crustaceans are particularly challenging for conventional techniques because their lack of permanent hard body parts makes ageing difficult. While a growing body of literature is aimed at developing alternative approaches to small-scale fisheries...
Article
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Since 2014, a Fijian programme of sampling reef fish catches has measured 16,404 fish from 180 species. A new stock assessment technique called length-based spawning potential ratio assessment has been applied to these data to develop stock assessments for 29 of the most common species in catches. More than half of the species (17) are assessed as...
Article
Potential users of the model proposed by Froese et al. (2018) should be aware of several issues. First, the method to calculate equilibrium numbers-at-length is incomplete and leads to negatively biased estimates of fishing mortality. Second, inadequate simulation testing fails to reveal that the method is highly sensitive to assumptions of equilib...
Article
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Among abalone species that were once harvested along the California coastline, red abalone (Haliotis rufescens) supports the remaining recreational fishery. To support development of a red abalone fishery management plan, non‐governmental organizations have initiated expanded data collection and developed fishery management strategies. The latter i...
Article
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This article describes a study undertaken in Fiji in order to develop a system of legal minimum size limits for reef fish. The study, which was supported primarily by the David and Lucile Packard Foundation and NZAID, involved a unique collaboration of international scientists from Biospherics Pty Ltd, Australia, University of British Columbia (UBC...
Article
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The cost, complexity and the lack of technical capacity in many countries have made the scientific assessment and sustainable management of data‐poor fisheries a persistent problem. New and innovative approaches are needed to stop the ongoing decline of data‐poor fisheries and loss of coastal biodiversity they are driving. In recent decades, marine...
Article
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Since 2012, the David and Lucille Packard Foundation has funded the development and application of a new approach to community-based fisheries management (CBFM) of reef fish in the western Pacific called spawning potential surveys (SPS). The approach uses a new length-based and simple technique to assess local stocks (Hordyk et al. 2015a,b; Prince...
Article
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In response to consumer concerns about the sustainability of Australian-sourced seafood we derive a set of criteria within an explicit decision-process that can be used to determine whether locally farmed and wild-caught Australian seafood products meet standards of ecological sustainability and Ecologically Sustainable Development. These criteria...
Conference Paper
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There is consensus about two requirements for successful SSFs management; participation of the local community in the decision-making process and availability of trusted information to assess the fishery, conceived as a social-ecological system. Approaches from industrial fisheries management are not suitable, but bridging the gap between fishing c...
Article
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The relative cost-benefit of alternative methods for rehabilitating blacklip abalone (Haliotis rubra) reefs depleted by viral ganglioneuritis was evaluated using quantitative population and bio-economic modeling. Fishery assessment models were adapted to describe population dynamics and economics of reseeding, translocation, and natural rebuilding....
Article
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Prince, J. D., Dowling, N. A., Davies, C. R., Campbell, R. A., and Kolody, D. S. 2011. A simple cost-effective and scale-less empirical approach to harvest strategies. – ICES Journal of Marine Science, 68: 947–960. An empirical harvest strategy for an Australian longline fishery was developed and tested using harvest strategy evaluation. The approa...
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Acoustic methodologies are important tools for monitoring deep-water fish and have the potential to provide high-precision estimates of aggregation size. However, they can be costly to design and implement for monitoring fish. Data from 2 years of scientific surveys of the spawning aggregations of orange roughy (Hoplostethus atlanticus, Collett, 18...
Conference Paper
The field of fisheries science and assessment still reflects its origins in extensive industrial scale fisheries. In stark contrast, many, if not most, benthic invertebrate and reef fish fisheries occur in spatially complex meta-populations, comprised of multiple relatively small independent populations. These small-scale spatially complex fisherie...
Article
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Small-scale spatially complex fisheries resources present a particular challenge to centralized governmental top-down models of assessment and management. Such processes have an implicit scale and cost that cannot be simply resized to address the complexity, small scale, low unit value, and overwhelming number of these resources. International expe...
Article
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Classical approaches to fisheries stock assessment rely on methods that are not conducive to managing data-poor stocks. Moreover, many nearshore rocky reef species exhibit spatial variation in harvest pressure and demographic rates, further limiting traditional stock assessment approaches. Novel management strategies to overcome data limitations an...
Article
Full-text available
Because abalone larvae do not disperse far and abalone on different reefs start to reproduce at very different sizes, stocks in each area should be managed with different size and catch limits. Otherwise, those places where abalone grow fastest are likely to become depleted, while areas with slow-growing stocks would be under-utilised. Such assessm...
Book
Full-text available
Because abalone larvae do not disperse far and abalone on different reefs start to reproduce at very different sizes, stocks in each area should be managed with different size and catch limits. Otherwise, those places where abalone grow fastest are likely to become depleted, while areas with slow-growing stocks would be under-utilised. Such assessm...
Article
Full-text available
... Noting the generic and basic nature of the skills set needed for this role, Prince (2003) termed the role “ barefoot ecologist ” after the Chinese “ barefoot doctor” programs that did much to raise the standard of community health in China during the 1950s. ...
Article
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To date, the development of fisheries harvest policies has typically focused on the use of indices estimated from quantitative stock assessment models. Where does this leave the small-scale and spatially complex resources for which costs and logistics prevent adequate data collection for the construction of quantitative assessment models at scales...
Article
The Southern and Eastern Scalefish and Shark Fishery (SESSF) is a complex multi-species fishery, with 34 stock units under quota management, for which a harvest strategy framework was developed in 2005. The framework involves the application of a set of tier-based harvest control rules (HCR) designed to provide a precautionary approach to managemen...
Article
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When the biomass and area occupied by a stock decline together, catch rates can remain high (hyperstability) and management with effort controls may be ineffectual. Banana prawn (Penaeus merguiensis) catches declined from 2000 until 2005 in the Albatross Bay area in the Gulf of Carpentaria (GOC), Australia. Data from commercial logbooks were used t...
Book
Full-text available
Future management of disease-affected abalone must adapt to the changing circumstances, and adopting a precautionary approach will allow maximum potential for stock recovery. This approach is mandated by the observation that no documented examples are known of abalone populations recovering from catastrophic impacts such as have occurred in the aba...
Article
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Global production of Haliotids (abalone) declined more than 60% since the 1960s and continues to decline, indicating a failure to manage these resources sustainably. This paper discusses facets of abalone biology which make sustainable management problematic. Abalone resources are comprised of many small (100s-1000s m) self-recruiting microstocks w...
Article
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The longevity and low fecundity of sharks make them particularly vulnerable to over-exploitation. Previous studies have emphasized the range of natural productivities observed across elasmobranch species and have used this to explain the sustainability of some elasmobranch fisheries and the depletion of others. This paper discusses the assessment o...
Article
Haliotid (abalone) fisheries are comprised of small-scale (<5 km2) stocks and serve as a model for many such fisheries. Extremely valuable to local fishing communities in aggregate, these micro-stocks are myriad and complex to study, monitor, assess and manage. Micro-stocks need assessment and management at local scales to prevent small components...
Article
Monte Carlo simulation is used to assess the benefits of different levels of survey intensity for a programme of fixed-station surveys using gill-nets, in terms of the ability to satisfy the management objectives for gummy shark, Mustelus antarcticus, in Bass Strait, Australia. The simulations consider the entire management process: data collection...
Article
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Experienced fishers believe the winter aggregations of gemfish are influenced by the following: cold bottom currents from the south and east flowing up onto the shelf; the edge of warm-core eddies; and topographic features along the shelf break. These claims were tested through observations made at sea during industry surveys of the winter gemfish...
Article
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A description of the marine ecosystem that sustains fisheries production around south-eastern Australia is based on a synthesis of fisher lore of the demersal trawling sector, a review of the literature and a decade of the author's field observations. A wide range of species are fished demersally in the South East Fishery (SEF). Until recently, man...
Article
Experienced fishers believe the winter aggregations of gemfish are influenced by the following: cold bottom currents from the south and east flowing up onto the shelf; the edge of warm-core eddies; and topographic features along the shelf break. These claims were tested through observations made at sea during industry surveys of the winter gem fish...
Article
Full-text available
Reaching the end of a fisheries ecology doctorate on Haliotids, I looked around and saw the seas, particularly coastal and tropical seas, full of small (1-50 km-2) stocks. Extremely valuable to local communities in aggregate, Micro-stocks are myriad and complex to study, assess ...
Article
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The school shark (Galeorhinus galeus) resource off southern Australia is assessed by use of an assessment approach that takes account of the spatial structure of the population. The population dynamics model underlying the assessment considers the spatial as well as the age-specific characteristics of school shark. It allows for a series of fisheri...
Article
Full-text available
The school shark (Galeorhinus galeus) resource off southern Australia is assessed by use of an assessment approach that takes account of the spatial structure of the population. The population dynamics model underlying the assessment considers the spatial as well as the age-specific characteristics of school shark. It allows for a series of fisheri...
Article
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On the basis oflhe Australian experience with the research and management of abalone (Haliotis sp.) stock and our wider experience of fisheries research and management, we argue that the spatial scale of an exploited species should be an important determinant in developing management strategies for an exploited species. The small spatial scales of...
Article
The hypothesis that for Haliotis rubra Leach the localised abundance of mature abalone determines the abundance of recruitment was tested with experimental reductions of breeding stock at four sites. At each site there was an experimental area 60m in length, from which adult abalone were removed, and two control areas 60m either side of the experim...
Article
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A modelling workshop process was used to bring biologists and comercial fishers together to develop a spatial model for population dynamics and harvest regulation of the South Australian ruk lobster (Jasus edwardsii) fishery. The resulting model provided a credible reconstruction of how the space, time, mand size structures of the stock have change...
Article
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The spatial distribution of resources and the behaviour of a species lead to a spatial pattern of density which has been called the concentration profile of the species. Some species aggregate and may be found almost entirely at high densities, other species space themselves much more uniformly and are usually found at low densities, and some speci...
Article
The results of a stock-reduction analysis of two zones within the Mexican abalone fishery are presented. A reconstruction of the stock dynamics in these zones using these results suggests that stock abundance and levels of recruitment declined relatively constantly between the 1960s and mid-1980s. Results of our analysis suggest that the relationsh...
Article
Full-text available
A new technique for individually marking abalone in situ uses a nylon rivet to attach a numbered disc to the trema. In trials with Haliotis rubra, there was an initial loss of 4-16% and an annual rate of tag shedding of approximately 4-35%. Rates of tag loss depended on the positioning of the tag. The ease with which this technique can be used unde...
Article
Full-text available
A new technique for individually marking abalone in situ uses a nylon rivet to attach a numbered disc to the trema. In trials with Haliotis rubra, there was an initial loss of 4-16% and an annual rate of tag shedding of approximately 4-35%. Rates of tag loss depended on the positioning of the tag. The ease with which this technique can be used unde...
Article
Full-text available
A population of Haliotis rubra Leach at Blubber Head in south-eastern Tasmania, Australia (4319S; 14704E) was sampled between February 1984 and October 1985. Relatively large numbers of 30 to 45 d-old new recruits were observed entering the population between October and February of each year. The annual instantaneous rate of natural mortality, Z,...
Article
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A technique for ageing Haliotis rubra is described. The spire of the shell is ground to create a polished disc of nacre in which rings are visible. The number of rings present in each shell is related to the size of the shell. The age at which each ring is deposited has been determined using an age-length key derived from length-frequency histogram...
Article
Full-text available
The literature on haliotids generally assumes that these organisms have a short pelagic larval life with dispersal powers limited only by the time available before settlement. The results of an experiment designed to test this assumption are presented. The density of mature Haliotis rubra Leach was experimentally decreased along a 90 m section of s...
Article
Full-text available
A technique based on the treatment of rocks removed from the seafloor, with either diethyl carbonate or ethanol in seawater is described for sampling populations of abalone. The results obtained using this technique are compared with those obtained using in situ underwater sampling techniques. The new technique, which is independent of sampling exp...
Article
Full-text available
Five species of atherinid were collected monthly from the estuary of the Swan-Avon river system. Length-frequency data and gonadosomic indices showed that Atherinosoma presbyteroides, A. elongata, A. wallacei and Allanetta mugiloides typically have a 1-year life cycle and generally reach maturity at total lengths of 40-85 mm. The mean length of the...
Article
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Monthly samples were taken throughout the Swan-Avon estuary during 1979 and 1980 to provide information on the partitioning of space and food resources amongst the five most abundant atherinid species found in south-western Australian estuaries. The results demonstrated that Pranesus ogilbyi and Atherinosoma presbyteroides were marine species, whic...
Article
Full-text available
Abalone fisheries in Australia and New Zealand are managed at scales of 100s of kilometers with zonal Legal Minimum Lengths (LML) and Individual Transferable Quotas (ITQ), for commercial divers, and short fishing seasons, trip and possession limits for the recreational sector. Abalone resources are comprised of many independent populations which va...

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Projects

Projects (4)
Project
Exploring all aspects of small-scale fisheries ...
Archived project
To support the south-east Asian blue swimmer crab fishery (Portunus pelagicus) apply length based techniques to assess their stocks and reform management by making their fishing gear size selective for crabs that have completed sustainable levels of reproduction.