ORCID Profile
0000-0003-1949-6483
Current Organisations
University of Western Australia
,
Ministry of Marine Affairs Republic of Indonesia
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Publisher: Elsevier BV
Date: 08-2021
Publisher: Research Square Platform LLC
Date: 05-04-2023
DOI: 10.21203/RS.3.RS-2610459/V1
Abstract: Seagrass meadows are an important component of coastal ecosystems globally, and they capture and store organic carbon in living biomass and sediments. Geographical estimates of blue carbon in seagrass habitats are regionally biased, with limited information from the Indo-Pacific region, including Indonesia. Seagrass extent in Indonesia is declining rapidly, and it has been suggested that Marine Protected Areas (MPAs) are an important instrument to support protection of seagrass ecosystems and its services. Thus, our study aimed to quantify and to compare sedimentary carbon stocks and sources of organic carbon in seagrass meadows located in undisturbed areas outside MPA, disturbed areas outside MPA, and within MPA in three small islands in Indonesia. The sediment carbon stocks ranged from 19.81 to 117.49 Mg C ha − 1 , with the highest stock measured inside MPA (77.15 ± 1.38 Mg C ha − 1 ), followed by undisturbed outside MPA (36.08 Mg C ha − 1 ), and lowest stock at disturbed outside MPA (21.86 ± 0.31 Mg C ha − 1 ). The predominant source of organic carbon in disturbed meadows was from coastal POM (~ 36%), while in MPA and undisturbed site the main source was seagrass, with ~ 38% and ~ 60%, respectively. The results of this study highlight the influence of MPAs on conserving carbon stock in seagrass ecosystems and provide important information on the importance of MPA’s in avoiding emissions caused by remineralisation of sediment organic carbon following seagrass degradation.
Publisher: Springer Science and Business Media LLC
Date: 08-2019
Publisher: Informa UK Limited
Date: 09-01-2022
Publisher: Elsevier BV
Date: 12-2023
Publisher: Elsevier BV
Date: 11-2023
Publisher: Springer Science and Business Media LLC
Date: 19-08-2023
DOI: 10.1007/S11356-023-29257-3
Abstract: Seagrass meadows are an important component of coastal ecosystems globally, and they capture and store organic carbon in living biomass and sediments. Geographical estimates of blue carbon in seagrass habitats are regionally biased, with limited information from the Indo-Pacific region, including Indonesia. Seagrass extent in Indonesia is declining rapidly, and it has been suggested that marine protected areas (MPAs) are an important instrument to support protection of seagrass ecosystems and their services. Thus, this study is aimed at quantifying and comparing sedimentary carbon stocks and sources of organic carbon from seagrass meadows located in undisturbed areas outside MPA, disturbed areas outside MPA, and within MPA in three small islands in Indonesia. The sediment carbon stocks from this study ranged from 19.81 to 117.49 Mg C ha −1 , with the highest stock measured inside MPA (77.15 ± 1.38 Mg C ha −1 ), followed by undisturbed outside MPA (36.08 Mg C ha −1 ), and the lowest stock at disturbed outside MPA (21.86 ± 0.31 Mg C ha −1 ). The predominant source of organic carbon in disturbed meadows was from coastal POM (particulate organic matter, ~ 36%), while in MPA and undisturbed sites, the main source was from seagrass, with ~ 38% and ~ 60% contributions, respectively. The results of this study add more data and information on seagrass blue carbon potential from three different islands with different degrees of disturbance in Indonesia.
No related grants have been discovered for Yusmiana Puspitaningsih Rahayu.