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Providing evidence to improve practice

Individual study: Marine reserves increase the abundance and size of blue cod and rock lobster

Published source details

Pande A., MacDiarmid A., Smith P., Davidson R., Cole R., Freeman D., Kelly S. & Gardner J. (2008) Marine reserves increase the abundance and size of blue cod and rock lobster. Marine Ecology Progress Series, 366, 147-158

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 Subtidal Benthic Invertebrate Conservation

A review of 14 studies undertaken between 1985 and 2002 in 20 areas of seabed in New Zealand (Pande et al. 2008) found that marine reserves prohibiting all fishing (no-take) typically had bigger and more abundant spiny rock lobsters Jasus edwardsii compared to fished areas outside the reserves. In 12 of 13 studies, rock lobsters were bigger inside the reserves (98 mm) than outside (79 mm), and in 11 of 14 studies lobster were more abundant inside the reserves (0.03 lobsters/m2) than outside (0.01 lobsters/m2). Older and larger reserves had greater effects than younger and smaller ones on lobster size (data presented as effect sizes). Size and abundance data were extracted from 14 studies of 10 marine reserves and 10 corresponding fished areas and used in a meta-analysis. At the time of surveys, the reserves were on average 8.5 years old.

(Summarised by Anaëlle Lemasson)