Effect of light sources and intensities on the growth of propagated corals Dipsastraea pallida (Dana, 1846) and Dipsastraea speciosa (Dana, 1846)
Aim: To determine the effect of different light sources and intensities on the growth of propagated scleractinian corals Dipsastraea pallida and Dipsastraea speciosa from Tanjung Tuan, Melaka. Methodology: A total of 120 replicates from each D. pallida and D. speciosa were kept under LED and fluores...
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| Format: | Article |
| Language: | English |
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Triveni Enterprises
2020
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| Online Access: | http://psasir.upm.edu.my/id/eprint/88615/ http://psasir.upm.edu.my/id/eprint/88615/1/ABSTRACT.pdf |
| _version_ | 1848860657644994560 |
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| author | Lim, Saoi May Wong, Nur Leena Wai Sin Arshad, Aziz |
| author_facet | Lim, Saoi May Wong, Nur Leena Wai Sin Arshad, Aziz |
| author_sort | Lim, Saoi May |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Aim: To determine the effect of different light sources and intensities on the growth of propagated scleractinian corals Dipsastraea pallida and Dipsastraea speciosa from Tanjung Tuan, Melaka. Methodology: A total of 120 replicates from each D. pallida and D. speciosa were kept under LED and fluorescent lights with three controlled intensities (Photosynthetic Photon Flux Density, PPFD = 60, 80 and 100 μmol m-2 s-1). Initial weight was recorded before the experiment and weekly growth in weights was recorded for six weeks. Results: Dipsastraea pallida and D. speciosa achieved 8.26 mg and 8.28 mg under LED light, and 8.16 mg and 8.22 mg growth under fluorescent light in six weeks 60 μmol m-2 s-1. The highest specific growth rate for D. pallida and D. speciose was observed at 60 μmol m-2 s-1. Insignificant difference was observed between LED and fluorescent lights for coral growth with same intensity exposure. The study indicates that moderate light intensity at 60 μmol m-2 s-1 enhanced better growth rate than higher intensity for D. pallida and D. speciosa from the turbid waters of Tanjung Tuan, Melaka. Interpretation: The experiment showed that corals from turbid water, D. pallida and D. speciosa grow better under moderate intensities than high intensities under both LED and fluorescent lights. However, intensity from fluorescent light was less penetrating in seawater as the lights have to be closer to water surface than LED lights which leads to the concern of allowing of excess heat into the culture medium. |
| first_indexed | 2025-11-15T12:48:43Z |
| format | Article |
| id | upm-88615 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T12:48:43Z |
| publishDate | 2020 |
| publisher | Triveni Enterprises |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-886152021-12-14T23:39:18Z http://psasir.upm.edu.my/id/eprint/88615/ Effect of light sources and intensities on the growth of propagated corals Dipsastraea pallida (Dana, 1846) and Dipsastraea speciosa (Dana, 1846) Lim, Saoi May Wong, Nur Leena Wai Sin Arshad, Aziz Aim: To determine the effect of different light sources and intensities on the growth of propagated scleractinian corals Dipsastraea pallida and Dipsastraea speciosa from Tanjung Tuan, Melaka. Methodology: A total of 120 replicates from each D. pallida and D. speciosa were kept under LED and fluorescent lights with three controlled intensities (Photosynthetic Photon Flux Density, PPFD = 60, 80 and 100 μmol m-2 s-1). Initial weight was recorded before the experiment and weekly growth in weights was recorded for six weeks. Results: Dipsastraea pallida and D. speciosa achieved 8.26 mg and 8.28 mg under LED light, and 8.16 mg and 8.22 mg growth under fluorescent light in six weeks 60 μmol m-2 s-1. The highest specific growth rate for D. pallida and D. speciose was observed at 60 μmol m-2 s-1. Insignificant difference was observed between LED and fluorescent lights for coral growth with same intensity exposure. The study indicates that moderate light intensity at 60 μmol m-2 s-1 enhanced better growth rate than higher intensity for D. pallida and D. speciosa from the turbid waters of Tanjung Tuan, Melaka. Interpretation: The experiment showed that corals from turbid water, D. pallida and D. speciosa grow better under moderate intensities than high intensities under both LED and fluorescent lights. However, intensity from fluorescent light was less penetrating in seawater as the lights have to be closer to water surface than LED lights which leads to the concern of allowing of excess heat into the culture medium. Triveni Enterprises 2020 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/88615/1/ABSTRACT.pdf Lim, Saoi May and Wong, Nur Leena Wai Sin and Arshad, Aziz (2020) Effect of light sources and intensities on the growth of propagated corals Dipsastraea pallida (Dana, 1846) and Dipsastraea speciosa (Dana, 1846). Journal of Environmental Biology, 41 (5). 1186 - 1193. ISSN 0254-8704; ESSN: 2394-0379 http://www.jeb.co.in/index.php?page=abstract&issue=202009_sep20_spl&number=11 |
| spellingShingle | Lim, Saoi May Wong, Nur Leena Wai Sin Arshad, Aziz Effect of light sources and intensities on the growth of propagated corals Dipsastraea pallida (Dana, 1846) and Dipsastraea speciosa (Dana, 1846) |
| title | Effect of light sources and intensities on the growth of propagated corals Dipsastraea pallida (Dana, 1846) and Dipsastraea speciosa (Dana, 1846) |
| title_full | Effect of light sources and intensities on the growth of propagated corals Dipsastraea pallida (Dana, 1846) and Dipsastraea speciosa (Dana, 1846) |
| title_fullStr | Effect of light sources and intensities on the growth of propagated corals Dipsastraea pallida (Dana, 1846) and Dipsastraea speciosa (Dana, 1846) |
| title_full_unstemmed | Effect of light sources and intensities on the growth of propagated corals Dipsastraea pallida (Dana, 1846) and Dipsastraea speciosa (Dana, 1846) |
| title_short | Effect of light sources and intensities on the growth of propagated corals Dipsastraea pallida (Dana, 1846) and Dipsastraea speciosa (Dana, 1846) |
| title_sort | effect of light sources and intensities on the growth of propagated corals dipsastraea pallida (dana, 1846) and dipsastraea speciosa (dana, 1846) |
| url | http://psasir.upm.edu.my/id/eprint/88615/ http://psasir.upm.edu.my/id/eprint/88615/ http://psasir.upm.edu.my/id/eprint/88615/1/ABSTRACT.pdf |