Managing Dynamic Fisheries with Static Regulations: an Assessment of Size-Graded Bag Limits for Recreational Kokanee Fisheries
| Autor: | Paul J. Askey |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Schedule Ecology business.industry 010604 marine biology & hydrobiology Environmental resource management Fishing Management Monitoring Policy and Law Aquatic Science Individual level 010603 evolutionary biology 01 natural sciences Aquatic organisms Fishery Environmental science Fish Fisheries management business Recreation Ecology Evolution Behavior and Systematics Resource utilization |
| Zdroj: | North American Journal of Fisheries Management. 36:241-253 |
| ISSN: | 1548-8675 0275-5947 |
| Popis: | Recreational fisheries regulations are set as static individual level restrictions, but fish populations and fisheries are dynamic. Therefore, evaluation of any recreational regulatory regime should consider the interaction between static regulations and dynamic fish populations. From this perspective, it is clear that traditional harvest regulations such as bag limits are ineffective as a conservation measure or harvest optimization strategy. The objectives of this study were to: (1) review basic theory on how bag limits influence exploitation rates as fish populations fluctuate; (2) investigate the potential applicability of a different approach, referred to as size-graded bag limits, that sets a schedule of different bag limits for different size thresholds; (3) apply the approach with a realistic model based on actual fishery data for kokanee Oncorhynchus nerka through simulation and discuss relevance to other fisheries. Regulation simulation indicated that there are improved regulatory altern... |
| Databáze: | OpenAIRE |
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