Differential survival of coral transplants on various substrates under elevated water temperatures
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Published source details
Yap H.T. (2004) Differential survival of coral transplants on various substrates under elevated water temperatures. Marine Pollution Bulletin, 49, 306-312.
Published source details Yap H.T. (2004) Differential survival of coral transplants on various substrates under elevated water temperatures. Marine Pollution Bulletin, 49, 306-312.
Actions
This study is summarised as evidence for the following.
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Transplant nursery-grown coral onto natural substrate Action Link |
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Transplant nursery-grown coral fragments onto artificial substrate Action Link |
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Transplant nursery-grown coral onto natural substrate
A replicated study in 1998 in a lagoon in Pangasinan, Philippines (Yap 2004) found that stony coral Porites rus fragments transplanted onto live or dead Porites cylindrica colonies had lower survival after 14 weeks than fragments transplanted on suspended metal grids, and that no Porites cylindrica fragments survived transplantation. After 14 weeks, Porites rus fragments removed from their nursery grids and transplanted onto live Porites cylindrica colonies had higher survival (44%) than those attached to dead colonies (11%), but both had lower survival than fragments suspended above the reef on grids (86%). No Porites cylindrica fragments using any of the three transplantation methods survived. In 1996, twenty-eight Porites cylindrica and 25 Porites rus fragments were obtained from a reef 1 km from the experiment site, attached to 1 m2 metal grids coated in white epoxy paint, and allowed to grow at 2–3 m depth. In June 1998 the fragments were transplanted onto three different substrates: remaining on the grids which were suspended 40 cm above the sandy substrate on metal stakes, or removed from the grids and tied onto existing live or dead Porites cylindrica colonies with plastic-coated copper wire. The three treatments were replicated at three sites (number of fragments/site not provided). Fragments were monitored every two weeks for 14 weeks.
(Summarised by: Eleanor Bladon)
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Transplant nursery-grown coral fragments onto artificial substrate
A replicated study in 1998 in a lagoon in Pangasinan, Philippines (Yap 2004) found that nursery-grown stony coral Porites rus fragments transplanted onto a reef on metal grids had higher survival than fragments removed from their grids and transplanted directly onto live or dead Porites cylindrica colonies, and no Porites cylindrica fragments survived transplantation. After 14 weeks, Porites rus fragments attached to the reef on metal grids had the highest survival (86%), and of those removed from their grids, those transplanted onto live Porites cylindrica colonies had higher survival (44%) than those transplanted onto dead colonies (11%). No Porites cylindrica fragments using any of the three transplantation methods survived. In 1996, twenty-eight Porites cylindrica and 25 Porites rus fragments were obtained from a reef 1 km from the experiment site, attached to 1 m2 metal grids coated in white epoxy paint, and allowed to grow at 2–3 m depth. In June 1998 the fragments were transplanted onto three different substrates: remaining on the grids which were suspended 40 cm above the sandy substrate on metal stakes, or removed from the grids and tied onto existing live or dead Porites cylindrica colonies with plastic-coated copper wire. The three treatments were replicated at three sites (number of fragments/site not provided). Fragments were monitored every two weeks for 14 weeks.
(Summarised by: Eleanor Bladon)
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