1. Lobster fishery and marine reserve interactions in central New Zealand
- Author
-
James J. Bell, Tyler D. Eddy, Ursula A. Rojas-Nazar, and Jonathan P. A. Gardner
- Subjects
0106 biological sciences ,Economics and Econometrics ,geography.geographical_feature_category ,010604 marine biology & hydrobiology ,Marine reserve ,Biodiversity ,04 agricultural and veterinary sciences ,Management, Monitoring, Policy and Law ,Aquatic Science ,Catch per unit effort ,01 natural sciences ,Commercial fishing ,Fishery ,Geography ,Habitat ,Abundance (ecology) ,040102 fisheries ,0401 agriculture, forestry, and fisheries ,Fisheries management ,Law ,Reef ,General Environmental Science - Abstract
Full no-take marine reserves (MRs) act as tools for biodiversity protection that reduce or remove human-induced disturbances and support the recovery of harvested species. Even if not designed specifically for fisheries management, MRs have the potential to enhance locally and distantly fished populations. This study quantified contemporary catch per unit effort (CPUE) of rock lobsters (RLs) with respect to weight and abundance inside and outside two central New Zealand MRs (Kapiti MR established in 1992, Taputeranga MR established in 2008) using commercial fishing methods (pots), and compared it to historical CPUE data. On average, mean CPUE and mean RL size were significantly greater inside than outside at both MRs. Contemporary CPUE at both MRs was approximately twice that of historical CPUE prior to the reserves being established. At Taputeranga, but not at Kapiti MR, we observed a gradient in CPUE with distance from the centre of the reserve. MRs had higher CPUE at reefs that were fully protected (entire reef in the MR) than at partially protected reefs (reef spans the MR boundary), which in turn had higher CPUE than unprotected reefs (entire reef outside the MR). Our results indicate that RL populations are responding positively to protection, but that factors such as the amount of reef area protected and proximity to reserve boundary contribute differently to RL responses. Our findings contribute to the design of MRs with respect to the habitat they protect and to a better understanding of the interactions between MRs and local fisheries.
- Published
- 2019