Study

Habitat structure and the survival of juvenile scallops Pecten novaezelandiae: comparing predation in habitats with varying complexity

  • Published source details Talman S., Norkko A., Thrush S. & Hewitt J. (2004) Habitat structure and the survival of juvenile scallops Pecten novaezelandiae: comparing predation in habitats with varying complexity. Marine Ecology Progress Series, 269, 197-207

Actions

This study is summarised as evidence for the following.

Action Category

Translocate species - Translocate molluscs

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

    A replicated, site comparison study in 2001 of 12 sites across four areas of soft seabed in the Tasman Sea and South Pacific Ocean, New Zealand (Talman et al. 2011) found that, a week after translocation, >40% of translocated New Zealand scallop Pecten novaezelandiae had survived. In addition, mortality was lower in areas closed to commercial fishing compared to fished areas. Mortality in the two closed areas (15% and 24%) were lower compared to the two fished areas (39% and 59%) in three of four comparisons (24% not statistically different to 39%). In addition, across the two fished areas, mortality was significantly higher in the area also seeded with juvenile scallops (59%), than the area not seeded (39%). In 2001, scallops were translocated from nearby areas to two areas closed to commercial fishing (in February and April) and two fished areas (in April) (three sites/area). One of the fished areas had also been seeded with approximately 1.2 million juvenile scallops in February. At each site, a 4-m long chain was deployed, with 12 scallops attached at fixed intervals. The status (dead or alive) of all scallops was checked daily for three days and after a week, and mortality assessed.

Output references

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, terrestrial mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read latest volume: Volume 17

Go to the CE Journal

Subscribe to our newsletter

Please add your details if you are interested in receiving updates from the Conservation Evidence team about new papers, synopses and opportunities.

Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape Programme Red List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Bern wood Supporting Conservation Leaders National Biodiversity Network Sustainability Dashboard Frog Life The international journey of Conservation - Oryx British trust for ornithology Cool Farm Alliance UNEP AWFA Butterfly Conservation People trust for endangered species Vincet Wildlife Trust