Study

Surviving a sea-change: survival of southern rock lobster (Jasus edwardsii) translocated to a site of fast growth

  • Published source details Green B.S. & Gardner C. (2009) Surviving a sea-change: survival of southern rock lobster (Jasus edwardsii) translocated to a site of fast growth. ICES Journal of Marine Science, 66, 656-664.

Actions

This study is summarised as evidence for the following.

Action Category

Translocate species - Translocate crustaceans

Action Link
Subtidal Benthic Invertebrate Conservation
  1. Translocate species - Translocate crustaceans

    A study in 2005–2007 in one area of rocky reef off the coast of southeastern Tasmania, Tasman Sea, Australia (Green & Gardner 2009) found that two years after southern rock lobsters Jasus edwardsii were translocated, their survival was similar to that of resident lobsters. Survival of translocated lobsters was 96–98% after two years, similar to resident lobsters (98%). In 2005, lobsters were translocated from a site where lobsters grew slowly to a site inside a marine reserve where resident lobsters grew faster. Survival was monitored for two years. Lobsters (n=1,998) were caught in the slow-growth site using baited pots, tagged, and kept in flow-through tanks with ambient seawater until release into the new site 2–3 days later. At the surface, batches of 50 lobsters were released into a net connected to a cage on the seabed. After 24h, all lobsters were released. Lobsters residing in the fast-growth site (2,668 in total) were tagged and monitored for comparison. Translocated and resident lobsters were resampled nine times using 20–60 baited pots. A mark-recapture model based on the number of recaptured tagged lobsters (457 translocated and 797 resident lobsters in total) was used to estimate percentage survival.

    (Summarised by: Anaëlle Lemasson)

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