Diversity and complexity of angler behaviour drive socially optimal input and output regulations in a bioeconomic recreational-fisheries model
نویسندگان
چکیده
In many areas of the world, recreational fisheries are not managed sustainably. This might be related to the omission or oversimplification of angler behaviour and angler heterogeneity in fisheries-management models. We present an integrated bioeconomic modelling approach to examine how differing assumptions about angler behaviour, angler preferences, and composition of the angler population altered predictions about optimal recreational-fisheries management, where optimal regulations were determined by maximizing aggregated angler utility. We report four main results derived for a prototypical northern pike (Esox lucius) fishery. First, accounting for dynamic angler behaviour changed predictions about optimal angling regulations. Second, optimal input and output regulations varied substantially among different angler types. Third, the composition of the angler population in terms of angler types was important for determining optimal regulations. Fourth, the welfare measure used to quantify aggregated utility altered the predicted optimal regulations, highlighting the importance of choosing welfare measures that closely reflect management objectives. A further key finding was that socially optimal angling regulations resulted in biological sustainability of the fish population. Managers can use the novel integrated modelling framework introduced here to account, quantitatively and transparently, for the diversity and complexity of angler behaviour when determining regulations that maximize social welfare and ensure biological sus-
منابع مشابه
Diversity and complexity of angler behavior drive socially optimal input and output regulations in a bioeconomic recreational-fisheries model
متن کامل
Fish life history, angler behaviour and optimal management of recreational fisheries
To predict recreational-fishing impacts on freshwater fish species, it is important to understand the interplay between fish populations, anglers and management actions. We use an integrated bioeconomic model to study the importance of fish life-history type (LHT) for determining (i) vulnerability to over-exploitation by diverse angler types (generic, consumptive and trophy anglers), who respon...
متن کاملA Socioeconomic and Biological Evaluation of Current and Hypothetical Crappie Regulations in Sardis Lake, Mississippi: An Integrated Approach
—We conducted a socioeconomic survey and review of existing biological data in an integrated evaluation of current and hypothetical fishery regulations on crappies Pomoxis spp. in Sardis Lake, Mississippi. The objectives of this study were to (1) assess angler acceptance of current and hypothetical harvest restrictions, (2) determine the recreational value of the crappie fishery to its particip...
متن کاملEstimating the Economic Impacts of a Trophy Largemouth Bass Fishery: Issues and Applications
—We sought to apply economic impact assessment methodology to better understand the local and state-level economic impacts associated with a trophy largemouth bass Micropterus salmoides fishery at Lake Fork, Texas. A sample of 848 anglers encountered during creel surveys were sent follow-up mail surveys and asked about their trip expenditures. Creel surveys indicated 74% of anglers were nonloca...
متن کاملParticipation Decisions, Angler Welfare, and the Regional Economic Impact of Sportfishing
We link a stochastic binary choice model of individual decisions to participate in the marine sport fisheries in Cook Inlet, Alaska, with a simulation-based sample enumeration procedure for aggregating estimates of individual angler welfare and a regionally adjusted zip code-level input-output model of regional economic activity. The result is a behaviorally based model for predicting changes i...
متن کامل