A decadal time-series of recreational fishing effort collected during and after implementation of a multiple use marine park shows high inter-annual but low spatial variability

作者：Lynch Tim P^*

来源：Fisheries Research, 2014, 151: 85-90.

DOI：10.1016/j.fishres.2013.09.014

• Recreational fishing licence
• JBMP
• Fishing effort transfer

Recreational fishing is commonly allowed in some areas of multiple-use marine parks but little is known about how fishing effort varies over time. To examine inter-annual and spatial variability, a time-series (1999-2009) of fishing effort was collected at the Jervis Bay Marine Park (JBMP) (Australia). Compared to a previous baseline (1989-1990), effort had doubled to tripled for comparative months, when sampling recommenced during the consultation period for zoning the park. Following the 2002 implementation of the zone plan, effort generally declined, so much so that in February 2009 fishing effort was 88% less than what was observed in February 2000. This decline was not associated with a model, based on the spatially explicit fishing effort data collected during the 1999-2002 consultation period and the pragmatically designed zoning plan, which predicted only 18.5% of fishing effort would be displaced by the 'no-take' sanctuary zones. Over the same period of decline in effort at JBMP, statewide recreational fishing licence sales remained steady or increased slightly. Interestingly, the JBMP fisheries' spatial distribution remained remarkably stable, with no difference in ranked use of the 10 sub-sampled areas used as spatial strata in the study-all of which eventually contained segments of sanctuary zone-either between months, years or pre or post zoning. The time-series suggests that fishing effort can show high inter-annual variable over time at a regional scale, while other aspects of the fishery, such as spatial distributions, remain stable, and that effort can vary significantly even when zoning minimizes impacts on recreational fisheries.

• 出版日期2014-3