Effects of predators and grazers exclusion on early post-settlement coral mortality
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Published source details
Penin L., Michonneau F., Carroll A. & Adjeroud M. (2011) Effects of predators and grazers exclusion on early post-settlement coral mortality. Hydrobiologia, 663, 259-264.
Published source details Penin L., Michonneau F., Carroll A. & Adjeroud M. (2011) Effects of predators and grazers exclusion on early post-settlement coral mortality. Hydrobiologia, 663, 259-264.
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This study is summarised as evidence for the following.
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Cultivate coral larvae in an artificial nursery located in a natural habitat Action Link |
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Cultivate coral larvae in an artificial nursery located in a natural habitat
A replicated study in 2004 at an artificial nursery in a natural habitat off the coast of Moorea, French Polynesia (Penin et al. 2011) found that transplanting nursery-grown stony coral Acropora striata recruits on tiles covered in cages led to similar survival to those on uncaged tiles. After one week, the average proportion of surviving Acropora striata recruits did not differ significantly between caged (48%) and uncaged tiles (44%). On average, caged tiles had a higher proportion of intact dead recruits (47%), a lower proportion of removed or damaged recruits (5%) and greater algae cover (82%) than uncaged tiles (intact dead recruits: 28%; removed/damaged recruits: 28%; algae cover: 24%). In 2004, Acropora striata larvae reared in the laboratory were placed in tanks and settled on 18 terracotta tiles (11 × 11 × 1 cm). After one week, 1-mm coral recruits on six tiles (average 35 recruits/tile) were placed at each of three depths in the sea (6, 12 and 18 m). Half of the tiles at each depth were covered with 1.2-cm wire cages, and the other half were left uncovered. Coral survival and algae cover were assessed after one week using photographs.
(Summarised by: Anna Berthinussen)
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