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Survivorship and growth rates for some transplanted coral reef building species and their potential for coral reef rehabilitation in the Red Sea

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Last updated: 23 Dec 2024

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Abstract

The deterioration of coral reefs in Egypt is a serious environmental problem. As part of studying the reef habitats rehabilitation; about 180 specimens of 8 hard coral reef species belonging to 2 families (Pocilliporidae and Acroporidae) were transplanted using table-type galvanized steel frameworks. Survival and growth rates were measured in situ then monitored over 24 months. From the transplanted 180 specimens, 128 fragments representing 71% were still survived after 4 months decreased to 121 fragments with a percentage of 67.2% after 12 months increased to 123 fragments (after recovery of two specimens) with 68.3% of the transplanted  specimens after 24 months. Significant differences (P<0.05) in growth rates were observed among the three periods of investigation (4, 12 and 24 months) in both families. The mean growth rates of investigated species of Pocilliporidae; S. pistillata, P. damicornis and P. verrucosa after 4, 12 and 24 months were; 1.27±0.06 cm yr-1, 1.2±0.07 cm yr-1 and 1.03±0.07 cm yr-1 (F = 3.43, 3.16 and 4.95) respectively. The investigated species of Acroporidae; Acropora tenuis, A. digitifera, A. horrid, A. samoensis and A. variabilis recorded the annual mean growth rates of;0.56±0.02 cm yr-1, 0.45± 0.04 cm yr-1, 1.04± 0.05cm yr-1, 0.83± 0.04cm yr-1 and 0.98± 0.03cm yr-1 (F = 17.58, 0.59, 0.60, 1.50 and 2.83) respectively. New coral reef recruits were observed for S. pistillata, P. verrucosa, P. damicornis and A. degitefera, but the coral recovery was observed for S. pistillata only.

DOI

10.21608/ejabf.2019.30291

Keywords

Coral reefs, Red Sea, transplantation, Rehabilitation, Acroporidae, Pocilloporidae

Authors

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Mostafa

Last Name

A. M. Mahmoud

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First Name

Mahmoud

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A. Dar

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First Name

Hussein

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N. M. Hussein

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First Name

Mohamed

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E. A. El-Metwally

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First Name

Mahmoud

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M. Maaty

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First Name

Mohsen

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Y. Omar

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First Name

Mahmoud

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R. Seraj

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First Name

Tarek

Last Name

A.A. Mohammed

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Volume

23

Article Issue

2

Related Issue

5152

Issue Date

2019-04-01

Receive Date

2018-12-19

Publish Date

2019-04-01

Page Start

183

Page End

193

Print ISSN

1110-6131

Online ISSN

2536-9814

Link

https://ejabf.journals.ekb.eg/article_30291.html

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https://ejabf.journals.ekb.eg/service?article_code=30291

Order

14

Type

Original Article

Type Code

103

Publication Type

Journal

Publication Title

Egyptian Journal of Aquatic Biology and Fisheries

Publication Link

https://ejabf.journals.ekb.eg/

MainTitle

Survivorship and growth rates for some transplanted coral reef building species and their potential for coral reef rehabilitation in the Red Sea

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Article

Created At

22 Jan 2023