A study by New Zealand researchers showed that blue cod and rock lobster both were bigger inside a marine reserve than outside.
The New Zealand blue cod (Parapercis colias) is a temperate marine fish of the family Pinguipedidae
These findings indicate that MR (Marine Reserve) protection can result in more and bigger individuals soon after the establishment of the MR. Focused comparison tests did not reveal any relationship between rock lobster (Jasus edwardsii) or blue cod (Parapercis colias) size or abundance and either age or area of MRs.
Their results demonstrate that no-take MRs are valuable conservation tools for species such as blue cod and rock lobster (and probably also for other exploited species with similar life history characteristics and habitat requirements) and that statistically detectable conservation benefits are apparent after only a few years of protection.
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