Can self-fertilizing coral species be used to enhance restoration of Caribbean reefs?
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Published source details
Gleason D.F., Brazeau D.A. & Munfus D. (2001) Can self-fertilizing coral species be used to enhance restoration of Caribbean reefs?. Bulletin of Marine Science, 69, 933-943.
Published source details Gleason D.F., Brazeau D.A. & Munfus D. (2001) Can self-fertilizing coral species be used to enhance restoration of Caribbean reefs?. Bulletin of Marine Science, 69, 933-943.
Actions
This study is summarised as evidence for the following.
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Transplant wild grown coral onto natural substrate Action Link |
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Transplant wild grown coral onto natural substrate Action Link |
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Transplant wild grown coral onto natural substrate
A replicated study (years not given) at a coral reef in Saint Croix, US Virgin Islands (2a) found that after transplanting wild-grown mustard hill coral Porites astreoides onto natural substrate most colonies survived, and that transplanting colonies to different depths to those they originated from had significant effects on growth and numbers of larvae produced. After 21 months, 87–100% of transplanted colonies survived. Average growth rates were higher for colonies transplanted to shallower sites (3.5 mm/year) and lower for colonies transplanted to deeper sites (1.7 mm/year) compared to those transplanted to their depth of origin (2.6 mm/year). Average larval production rates were higher for colonies transplanted to their depth of origin at shallow sites (11 larva/40 polyps) than for those transplanted to their depth of origin at deep sites (2.6 larva/40 polyps) or transplanted to deeper (4.4 larva/40 polyps) or shallower sites than their origin (4.5 larva/40 polyps). Thirty-two mustard hill coral colonies (each 7–15 cm diameter) were collected at each of two depths (9 and 24 m) and taken to a laboratory. Each colony was cut in half and stained with red dye for 36–48 h, before being transported back to the reef and transplanted onto natural substrate using underwater epoxy. One half of each colony was transplanted to the depth it was collected from, and the other to a new depth (9 or 24 m). After 21 months, survival was recorded. Growth and larvae numbers were assessed in the laboratory for 16–19 transplanted colonies/depth.
(Summarised by: Anna Berthinussen)
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Transplant wild grown coral onto natural substrate
A replicated study (years not given) at a coral reef in Saint Croix, US Virgin Islands (2b) found that transplanting wild-grown mustard hill coral Porites astreoides colonies cut in half onto natural substrate led to similar survival, growth and larval production rates compared to when colonies were left intact when transplanted. After 21 months, the average percentage of surviving colonies was similar for cut (88–100%) and intact colonies (87–100%). Average growth and larval production rates were reported to be similar for cut (1.7–3.5 mm/year; 2.6–11 larva/40 polyps) and intact colonies (1.5–3.3 mm/year; 3.5–13 larva/40 polyps), although the results were not tested for statistical significance. Thirty-two mustard hill coral colonies (each 7–15 cm diameter) were collected at each of two depths (9 and 24 m), cut in half, and stained with red dye for 36–48 h in a laboratory. Intact colonies of a similar size were collected from the same depths (50–52 colonies/depth) and stained for 36 h in plastic bags anchored in a sand channel. Cut and intact colonies were transplanted onto natural substrate on the reef using underwater epoxy. Half were transplanted to the depth they were collected from, and half to a new depth (9 or 24 m). After 21 months, survival was recorded. Growth and larvae numbers were assessed in the laboratory for 58 cut and 69 intact colonies.
(Summarised by: Anna Berthinussen)
Output references
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