Study

Caging enhances post-settlement survival of juveniles of the scleractinian coral Acropora tenuis

  • Published source details Baria M.V.B., Guest J.R., Edwards A.J., Aliño P.M., Heyward A.J. & Gomez E.D. (2010) Caging enhances post-settlement survival of juveniles of the scleractinian coral Acropora tenuis. Journal of Experimental Marine Biology and Ecology, 394, 149-153.

Actions

This study is summarised as evidence for the following.

Action Category

Cultivate coral larvae in an artificial nursery located in a natural habitat

Action Link
Coral Conservation
  1. Cultivate coral larvae in an artificial nursery located in a natural habitat

    A replicated, controlled study in 2007 at two depths at an artificial nursery on a coral reef in Malilnep channel, Philippines, (Baria et al. 2010) found that using full or partial caging to exclude predators from transplanted stony coral Acropora tenuis spat (settled larvae) resulted in higher survival compared to uncaged spat. After three months, average survival rate at two depths of caged spat (4 m: 17%, 9 m: 33%) and partially caged spat (4 m: 19%, 9 m: 23%) was higher than uncaged spat (4 m: 5%, 9 m: 11%). There was no difference in survival between caged and partially caged spat. In June 2007, sixty pairs of fibre-cement settlement tiles each with 20 coral spat (>1 cm apart) were attached 20 cm apart on a metal rod suspended 10 cm above the substrate on two metal posts. Forty structures were fully covered by 1 cm2 PVC mesh cage, 40 were partially covered (open-sided cage) and 40 were left uncaged. Structures were placed at 4 m and 9 m (60 structures/depth). Survival of spat was recorded after three months in September 2007.

    (Summarised by: Ann Thornton)

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