Short Communication:  Species diversity of mangrove in Kutai National Park, East Kalimantan, Indonesia

Poedjirahajoe, Erny; Sulistyorini, Iin Sumbada; Komara, Liris Lis

doi:10.13057/biodiv/d201224

Cited by 3 publications

(2 citation statements)

References 14 publications

(12 reference statements)

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“…The actinomycetes biodiversity in mangrove ecosystems, in particular in Indonesia, is still underexplored (Li et al 2019;Hamed et al 2021). It is unfortunate because, with a total area of 4.25 million ha, mangrove forests in Indonesia are the largest globally, representing 20% of the world's mangroves (Poedjirahajoe et al 2019). One of the mangrove ecosystems in Indonesia is Mangrove Center Tuban, located in the coastal area of Jenu Village, Tuban, Indonesia.…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial activity of actinomycetes isolated from mangrove soil in Tuban, East Java, Indonesia

et al. 2022

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Abstract. Fatimah, Suroiyah F, Solikha N, Rahayuningtyas ND, Surtiningsih T, Nurhariyati T, Ni’matuzahroh, Affandi M, Geraldi A, Thontowi A. 2022. Antimicrobial activity of actinomycetes isolated from mangrove soil in Tuban, Indonesia. Biodiversitas 23: 2957-2965. This study aims to isolate, identify, and investigate the antimicrobial activity of actinomycetes isolated from mangrove soil of the Mangrove Center Tuban in Jenu Village, Tuban District, Indonesia. Soil sampling was carried out with a purposive sampling technique. The dry-heating and pour plate methods were used to isolate actinomycetes. Four isolates (LIB.2; LIA.4; LIA.9; and LIA.10) were selected and tested for their antimicrobial activities against Escherichia coli ATCC 25922, Staphylococcus aureus ATCC 25923, and Candida albicans ATCC 10231 using disc diffusion method. Colony morphology characterization and Gram staining were then conducted on the 4 isolates. The identification of LIB.2 was performed by biochemical assay and 16S rRNA gene sequence analysis. The results showed that crude antimicrobial extracts (CACs) of all isolates inhibited the growth of E. coli but not S. aureus and C. albicans. Isolate LIB.2 showed the highest inhibition zone with a diameter of 15,65 ± 2,33 mm, followed by LIA.9 (10,19 ± 2,78 mm), LIA.4 (9,80 ± 0,47), and LIA.10 (8,75 ± 0,42 mm). The most potential isolate was identified as a member of Streptomyces genera. Based on biochemical assay and 16S rRNA gene sequence analysis, LIB.2 was identified as Streptomyces vellosus strain LIB.2.

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Section: Introductionmentioning

confidence: 99%

Antimicrobial activity of actinomycetes isolated from mangrove soil in Tuban, East Java, Indonesia

et al. 2022

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“…Other studies on the coasts of major cities, namely Jakarta Bay and Muara Kapuk, have identified 5 to 9 mangrove species (Rumondang et al 2021;Sari et al 2019). The number of mangrove species found in remote areas with natural mangrove forests is considerably higher, as evidenced by studies in Mimika Papua (66 species), Segara Anakan Cilacap, Central Java (16 species) and Kutai National Park, East Kalimantan (17 species) (Poedjirahajoe et al 2019;Setyadi et al 2021;Widyastuti et al 2018). Excellent water and sediment quality, low environmental pollution, and the absence of illegal logging are all factors that contribute to the optimal growth of mangrove forests in remote coastal areas.…”

Section: Mangrove Community Structurementioning

confidence: 96%

Mapping of mangrove forest and carbon stock estimation of east coast Surabaya, Indonesia

2022

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Abstract. Hidayah Z, Rachman HA, As-Syakur AR. 2022. Mapping of mangrove forest and carbon stock estimation of east coast Surabaya, Indonesia. Biodiversitas 23: 4826-4837. The mangrove forests on Surabaya's east coast are an important protected area, providing habitat for a variety of marine organisms and water birds. This area is also vital for carbon storage and sequestration. The purpose of this research is to determine the changes in mangrove areas over the last 20 years and to calculate the amount of carbon stored in these mangrove forests. Changes in the area of mangrove forests and Normalized Difference Vegetation Indices (NDVI) were determined using Landsat-7 in 2000 and Landsat-8 in 2020. The vegetative carbon stock of mangrove stands was calculated using allometric measurements. The study results reveal that the mangrove forest area has increased significantly from 257.13 ha in 2000 to 753.48 ha in 2020. The results of regression models also show that NDVI has a significant influence on aboveground biomass (AGB), as indicated by the coefficient of determination (R2) = 0.7 (F test, df = 28, p-value < 0.05). The estimated aboveground and belowground carbon stock is 46.35 ± 13.65 ton C ha-1 and 13.65 ± 6.74 ton C ha-1 respectively. Accordingly, it is observed that the mangrove forest of East Coast Surabaya can sequester at least a total of 192.72 tons CO2 ha-1 in above and belowground biomass.

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Towards understanding climate change impacts: monitoring the vegetation dynamics of terrestrial national parks in Indonesia

Ramdani,

Setiani,

Sianturi

2024

Sci Rep

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Monitoring vegetation dynamics in terrestrial national parks (TNPs) is crucial for ensuring sustainable environmental management and mitigating the potential negative impacts of short- and long-term disturbances understanding the effect of climate change within natural and protected areas. This study aims to monitor the vegetation dynamics of TNPs in Indonesia by first categorizing them into the regions of Sumatra, Jawa, Kalimantan, Sulawesi, and Eastern Indonesia and then applying ready-to-use MODIS EVI time-series imageries (MOD13Q1) taken from 2000 to 2022 on the GEE cloud-computing platform. Specifically, this research investigates the greening and browning fraction trends using Sen's slope, considers seasonality by analyzing the maximum and minimum EVI values, and assesses anomalous years by comparing the annual time series and long-term median EVI value. The findings reveal significantly increasing greening trends in most TNPs, except Danau Sentarum, from 2000 to 2022. The seasonality analysis shows that most TNPs exhibit peak and trough greenness at the end of the rainy and dry seasons, respectively, as the vegetation response to precipitation increases and decreases. Anomalies in seasonality that is affected by climate change was detected in all of the regions. To increase TNPs resilience, suggested measures include active reforestation and implementation of Assisted Natural Regeneration, strengthen the enforcement of fundamental managerial task, and forest fire management.

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Short Communication: Species diversity of mangrove in Kutai National Park, East Kalimantan, Indonesia

Cited by 3 publications

References 14 publications

Antimicrobial activity of actinomycetes isolated from mangrove soil in Tuban, East Java, Indonesia

Antimicrobial activity of actinomycetes isolated from mangrove soil in Tuban, East Java, Indonesia

Mapping of mangrove forest and carbon stock estimation of east coast Surabaya, Indonesia

Towards understanding climate change impacts: monitoring the vegetation dynamics of terrestrial national parks in Indonesia

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