Recreational Fisheries Management and Ecological Assessment

Recreational fisheries represent a globally significant component of aquatic resource use, delivering both cultural and economic benefits while exerting measurable impacts on fish populations and ecosystems. Effective management requires the integration of biological monitoring, socio-economic evaluation and adaptive governance to balance angler satisfaction with conservation objectives. Ecological assessment frameworks increasingly employ indices such as catch-per-unit-effort (CPUE), stock status indicators and habitat-specific valuations to inform regulations on bag limits, size limits and seasonal closures. Parallel advances in digital data acquisition—from online angler logs to remote sensing of habitat change—have begun to bridge longstanding monitoring gaps. Emphasising ecosystem services and stakeholder participation ensures that policy interventions, whether at a local lake or across coastal regions, are grounded in robust science and responsive to emerging pressures such as technological innovation and climate-driven habitat shifts.

Research from Nature Portfolio

Foundational work has applied unconventional data sources to characterise recreational fishing activity where conventional reporting is lacking. A seminal study introduced the concept of Recreational-to-Commercial Ratio (RCR) to quantify the market-equivalent value per tonne of fish captured for leisure, demonstrating that unreported catches in several West African nations amounted to tens of thousands of tonnes annually and generated substantial economic returns when valued appropriately. The analysis highlighted the potential of digital media platforms to inform management decisions, revealing a sevenfold increase in fish values through the development of recreational fisheries and underlining the importance of integrating social-media-derived data into conservation planning and policy frameworks.

Recreational Fisheries Management and Ecological Assessment publication trend

The graph below shows the total number of articles in recreational fisheries management and ecological assessment across all publications each year (not limited to Nature Index journals).

Technical terms

Creel survey: A structured questionnaire-based method for collecting data on angler catch, effort and behaviour at fishing sites.

Catch-per-unit-effort (CPUE): A standardised measure of the number or weight of fish caught per unit of fishing effort, used as an index of fish abundance.

Non-market valuation: Economic techniques for estimating the value of goods or services not traded in traditional markets, such as recreational experiences.

Travel cost method: A revealed preference approach that infers the value of a recreational site from the expenses incurred by visitors travelling to it.

Recreational-to-Commercial Ratio (RCR): A metric expressing the market-equivalent value per tonne of fish caught in recreational fisheries relative to commercial catches.

Ecosystem services: The direct and indirect contributions of ecosystems to human well-being, including cultural, provisioning and regulatory functions relevant to fisheries.

References

1. Best for pleasure, not for business: evaluating recreational marine fisheries in West Africa using unconventional sources of data. Humanities and Social Sciences Communications (2016).
2. CreelCat, a Catalog of United States Inland Creel and Angler Survey Data. Scientific Data (2023).
3. Recreation in coastal environments: Estimating the non-market value of fishing harbors. Ecological Economics (2024).
4. Valuing shoreline habitats for recreational fishing. Ocean & Coastal Management (2024).
5. Digital fisheries data in the Internet age: Emerging tools for research and monitoring using online data in recreational fisheries. Fish and Fisheries (2022).