Individual study: Changes in community structure in temperate marine reserves
Babcock R., Kelly S., Shears N., Walker J. & Willis T. (1999) Changes in community structure in temperate marine reserves. Marine Ecology Progress Series, 189, 125-134
This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.
Designate a Marine Protected Area and prohibit all types of fishing
A replicated, paired, site comparison study in 1995 in eight sites of kelp beds around islands in the South Pacific Ocean, northeastern New Zealand (Babcock et al. 1999) found that marine protected areas prohibiting all fishing (no-take) for 20 years had more and bigger spiny lobsters Jasus edwardsii compared to adjacent fished areas. Abundance of lobsters was greater in no-take (455 lobsters/ha) compared to fished areas (174 lobsters/ha). In addition, average lobster size was greater in no-take (110 mm), compared to fished areas (94 mm). Leigh Marine Reserve (established 1975) was surveyed in spring 1995, and Tāwharanui Marine Park (established 1982) in autumn 1995. At two sites within and two sites outside each no-take area, divers counted and visually estimated the carapace length of all lobsters within five randomly-placed 50 × 10 m transects (max. 25 m depth).
(Summarised by Anaëlle Lemasson & Laura Pettit)