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Seagrass conditioning in husbandry tanks and transplanting at Gaya Island, Kota Kinabalu, Sabah

Seagrass meadows are recognised as one of the productive coastal ecosystems. Unfortunately, unsustainable coastal development and climate change had caused seagrass degradation at the rate of 2-7% annual globally. Seagrass transplantation has been introduced since the 1970s as part of the solutions...

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Main Author: Yap, Tzuen Kiat
Format: Thesis
Language:English
Published: 2019
Online Access:https://eprints.ums.edu.my/id/eprint/25210/1/Seagrass%20conditioning%20in%20husbandry%20tanks%20and%20transplanting%20at%20Gaya%20Island%2C%20Kota%20Kinabalu%2C%20Sabah.pdf
https://eprints.ums.edu.my/id/eprint/25210/
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spelling my.ums.eprints.252102020-03-12T08:36:30Z https://eprints.ums.edu.my/id/eprint/25210/ Seagrass conditioning in husbandry tanks and transplanting at Gaya Island, Kota Kinabalu, Sabah Yap, Tzuen Kiat Seagrass meadows are recognised as one of the productive coastal ecosystems. Unfortunately, unsustainable coastal development and climate change had caused seagrass degradation at the rate of 2-7% annual globally. Seagrass transplantation has been introduced since the 1970s as part of the solutions to facilitate restoration of degraded meadows. Seagrass meadows in Gaya Island, Kota Kinabalu had been declining since 2001 and this raises the urgency to restore its ecosystem. This study aims to (1) determine percent survival of different seagrass species ( Cymodocea rotundata, Cymodocea serrulata, Halodu/e uninervis and Halophila ova/is) and growth rate of Enhalus acoroides, (2) identify organisms associated with seagrass in husbandry tanks and transplanting site; (3) determine which method and species suitable for seagrass transplanting. The seagrass was collected from Gaya Bay and transferred to husbandry tanks (Marine Ecology Research Centre) at Malehorn Bay, Gaya Island. The percentage of seagrass survival was determined by the number of surviving planting units, while the growth rate by leaf elongation rate. Transplanting methods were tested at four different approaches: (i) sprig, (ii) plug, (iii) mono-and mixed-species, and (iv) different combination of mixed-species. Percent coverage of seagrass for each approach was recorded to determine the success of transplanting. Associated organisms in husbandry tanks and transplanting site were identified to the lowest taxon. Percentage of survival in husbandry was 83% and the growth rate of Enhalus was 0.69±0.04 cm day-1 • Mixed-species transplanting recorded high percent cover, which is ranging from SO to 100% compared to mono-species. Total of 16 and 30 species organisms identified associated with seagrass in husbandry tanks and transplanting site, respectively. This study concluded mixed-species transplanting, while C serrulata and H. ova/is are suitable for transplanting. 2019 Thesis NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/25210/1/Seagrass%20conditioning%20in%20husbandry%20tanks%20and%20transplanting%20at%20Gaya%20Island%2C%20Kota%20Kinabalu%2C%20Sabah.pdf Yap, Tzuen Kiat (2019) Seagrass conditioning in husbandry tanks and transplanting at Gaya Island, Kota Kinabalu, Sabah. Masters thesis, Universiti Malaysia Sabah.
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
description Seagrass meadows are recognised as one of the productive coastal ecosystems. Unfortunately, unsustainable coastal development and climate change had caused seagrass degradation at the rate of 2-7% annual globally. Seagrass transplantation has been introduced since the 1970s as part of the solutions to facilitate restoration of degraded meadows. Seagrass meadows in Gaya Island, Kota Kinabalu had been declining since 2001 and this raises the urgency to restore its ecosystem. This study aims to (1) determine percent survival of different seagrass species ( Cymodocea rotundata, Cymodocea serrulata, Halodu/e uninervis and Halophila ova/is) and growth rate of Enhalus acoroides, (2) identify organisms associated with seagrass in husbandry tanks and transplanting site; (3) determine which method and species suitable for seagrass transplanting. The seagrass was collected from Gaya Bay and transferred to husbandry tanks (Marine Ecology Research Centre) at Malehorn Bay, Gaya Island. The percentage of seagrass survival was determined by the number of surviving planting units, while the growth rate by leaf elongation rate. Transplanting methods were tested at four different approaches: (i) sprig, (ii) plug, (iii) mono-and mixed-species, and (iv) different combination of mixed-species. Percent coverage of seagrass for each approach was recorded to determine the success of transplanting. Associated organisms in husbandry tanks and transplanting site were identified to the lowest taxon. Percentage of survival in husbandry was 83% and the growth rate of Enhalus was 0.69±0.04 cm day-1 • Mixed-species transplanting recorded high percent cover, which is ranging from SO to 100% compared to mono-species. Total of 16 and 30 species organisms identified associated with seagrass in husbandry tanks and transplanting site, respectively. This study concluded mixed-species transplanting, while C serrulata and H. ova/is are suitable for transplanting.
format Thesis
author Yap, Tzuen Kiat
spellingShingle Yap, Tzuen Kiat
Seagrass conditioning in husbandry tanks and transplanting at Gaya Island, Kota Kinabalu, Sabah
author_facet Yap, Tzuen Kiat
author_sort Yap, Tzuen Kiat
title Seagrass conditioning in husbandry tanks and transplanting at Gaya Island, Kota Kinabalu, Sabah
title_short Seagrass conditioning in husbandry tanks and transplanting at Gaya Island, Kota Kinabalu, Sabah
title_full Seagrass conditioning in husbandry tanks and transplanting at Gaya Island, Kota Kinabalu, Sabah
title_fullStr Seagrass conditioning in husbandry tanks and transplanting at Gaya Island, Kota Kinabalu, Sabah
title_full_unstemmed Seagrass conditioning in husbandry tanks and transplanting at Gaya Island, Kota Kinabalu, Sabah
title_sort seagrass conditioning in husbandry tanks and transplanting at gaya island, kota kinabalu, sabah
publishDate 2019
url https://eprints.ums.edu.my/id/eprint/25210/1/Seagrass%20conditioning%20in%20husbandry%20tanks%20and%20transplanting%20at%20Gaya%20Island%2C%20Kota%20Kinabalu%2C%20Sabah.pdf
https://eprints.ums.edu.my/id/eprint/25210/
_version_ 1760230338665119744
score 13.211869

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