Occurrence and Distribution of Seagrasses in Waters of Perhentian Island Archipelago, Malaysia

Bujang, Japar Sidik

doi:10.3923/jfas.2013.441.451

Cited by 9 publications

(3 citation statements)

References 9 publications

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“…In addition, E. acoroides transplanted with the anchor method developed roots that measure 7.70-27.10 cm in length, allowing them to be firmly attached to the substrate. Additionally, the anchor method used in the transplant unit significantly affects the adaptation of the rhizome of E. acoroides to the substrate at the transplant site (Harah and Sidik, 2013). Several results of transplant research using the anchor method have also demonstrated a reasonably high success rate.…”

Section: Discussionmentioning

confidence: 99%

Seagrass (<I>Enhalus acoroides</I>) Restoration Performance with Two Different Methods (Anchor and Seed) in Panjang Island, Jepara, Indonesia

Wismar

Ambariyanto²,

Widianingsih³

2023

JIPK

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Highlight Research Seeds can grow into seagrass seedlings for an optimal period of five weeks Seed sowing can be optimized by supplementing nutrients with fertilizers The seedling transplant method, which utilizes seed seedlings, is not significantly different in daily growth from the anchor transplant method, which utilizes donors/seeds transport The biomass content of seagrass leaves can be used to determine the growth rate of the leaves Abstract Globally, the area of seagrass beds important to the ecosystems in coastal environment is decreasing due to environmental pressures, both natural and artificial. Transplantation is one way to restore the condition of damaged seagrass beds, the anchor transplant method uses the transfer of donor seagrass to the transplant area, while the seed transplant method uses seed sowed from seagrass. This study aimed to investigate the survival and growth rates of seagrass transplants and the biomass and chlorophyll content of transplanted Enhalus acoroides in the waters of Panjang Island Jepara utilizing anchor and seedling methods. The research was conducted in the waters around Panjang Island, Jepara, between September and December 2021. The results indicated that transplantation of seagrass E. acoroides using the anchor method resulted in the highest average growth rate of 0.25 cm/day and a survival rate of 96.67%, while transplantation using the seedling method resulted in a growth rate of 0.18 cm/day and a survival rate of 83.33%. The results showed that the anchor method scored better than the seedling transplantation method in terms of growth rate and survival rate. However, seedling is a feasible method to meet the availability of seeds that will later be transplanted, considering that the anchor method still has shortcomings in terms of the availability of seeds and the use of pegs which are still not environmentally friendly. so that the seedling method can be recommended for the restoration process of seagrass ecosystems by taking into account the season, weather and other important indices.

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Section: Discussionmentioning

confidence: 99%

Seagrass (<I>Enhalus acoroides</I>) Restoration Performance with Two Different Methods (Anchor and Seed) in Panjang Island, Jepara, Indonesia

Wismar

Ambariyanto²,

Widianingsih³

2023

JIPK

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“…Seagrass cover will be higher in natural areas. This is supported by the opinion of Harah et al (2013) which states that the decrease in the area of seagrass beds in the world is the impact of environmental pressures, both natural and the result of human activities (Murphy et al 2022;Unsworth 2018;Ng et al 2020).…”

Section: Seagrass Distribution Areamentioning

confidence: 92%

Utilization of Satellite Imagery for Mapping the Distribution of Seagrass on Buhung Pitue Island

Rosalina,

Arafat,

Wahda

et al. 2024

IJG

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Buhung Pitue Island has seagrass beds those which are spread almost evenly along its coast. Research using remote sensing technology in an effort to support seagrass conservation in Indonesia needs to be carried out. Spatial data is relatively easy to obtain because there are many types of images with various spatial resolutions. The image can be obtained on google earth. Analysis of the distribution of seagrass areas was obtained by digitizing on screen in ArcGIS software, namely in seagrass areas where the boundaries are known. Digitizing is conducted by enlarging the seagrass area in the downloaded image, performing radiometric and geometric corrections, and digitizing to create a shapefile (shp) storing the location, shape, and attributes of geographic features. The seagrass distribution area of Buhung Pitue Island was of 36.5 Ha in 2014 and was of 39.6 in 2021. The rate of change in area from 2014 to 2021 was of 0.085% (an increase of 3.1 ha). The distribution area of seagrass has increased due to natural factors and restrictions on human activities during the COVID-19 pandemic. In addition, another factor supporting the increase in seagrass distribution is the abundance of Enhalus acoroides seagrass species growing and spreading over long distances. The sea surface temperature was high, which was 30.37 °C, while the current speed was categorized as slow because it was around 0.01 m/s. Although the results are obtained from high-resolution imagery, an accuracy test still needs to be conducted.

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“…The overall seagrass biodiversity in Johor was assessed by Sabri et al [72]. Japar Sidik & Zakaria [73] reported the cause of purple colo- [94]; 12 [95]; 13 [96]; 14 [97]; 15[27]; 16 [4]; 17 [99]; 18[62]; 19 [100]; 20 [28]; 21 [101]; 22 [102]; 23 [61]; 24 [103]; 25 [104]; 26 [105]; 27 [106]; 28 [107]; 29 [30]; 30 [108]; 31 [109]; 32[39]; 33 [110]; 34[63]; 35 [111]; 36 [112]; 37 [113]; 38 [65]; 39 [114]; 40 [115]; 41[59]; 42 [116]; 43 [117]; 44 [118]; 45 [119]; 46[60]; 47 [76]; 48 [123];49 [121]; 50 [122]; 51 [120]; 52 [75]; 53 [58]; 54 [74]; 55 [73]; 56 [72]; 57 [124]; 58 [125]; 59[70]; 60 [126]; 61[51]; 62 [127]; 63 [128]; 64[50]; 65[69]; 66 [18]; 67…”

Section: Biology and Distributionmentioning

confidence: 99%

Trends in Seagrass Research and Conservation in Malaysian Waters

Kamal

Asif

Idris

et al. 2023

J.Trop.Life.Science

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The seagrass ecosystems found in the marine and coastal areas, with substantial eco-nomic and ecological services and span all over the globe excluding the Antarctic region. The Coral Triangle and Southeast Asia are recognized as a worldwide hotspot of seagrass species and habitats, encompassing 10-21 species of seagrass in every na-tion, although the study, understanding, and quantity of publications on seagrass eco-systems are rather limited in the region, including Malaysia. Malaysia contains 18 seagrass species from three families, which occupy 16.8 km2of coastal area, where the study and discovery of seagrass species and meadows began in 1904 with the re-port of Beccari. All of the published papers reviewed reported on Malaysian seagrass-related research, which was divided into nine topic groups: biology and distribution, carbon sequestration, fauna, remote sensing, impact and pollution genetic study, res-toration, microbiological investigation, and others. The extensive study of the seagrass ecosystem began in 1993, and we have identified 183 published papers from Scopus, 141 publications from Web of Science, and 42 from Google Scholar. However, the average trend of the number of publications from 1993 to 1999 was 0.71 ± 0.36, while from 2000 to 2022 was 7.70 ± 1.16 followed by the average trend of the yearly number of publications was 6.78 ± 1.08. The highest number of publications was found on faunal categories (43.17%), followed by biology and distribution (21.85%). The num-ber of articles that were published on Malaysian seagrass meadows each year has been discovered to be rising, which indicates that the trends in seagrass study and publish-ing were progressively garnering the attention of researchers, academics, and the gov-ernment. However, to better understand the sustainable ecology and ecosystem ser-vices provided by seagrass habitats, an emphasis on certain research niches, such as the genetic study of flora and fauna in seagrass meadows, microbial ecology, and res-toration as well as conservation of seagrass species might be helpful.

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Occurrence and Distribution of Seagrasses in Waters of Perhentian Island Archipelago, Malaysia

Cited by 9 publications

References 9 publications

Seagrass (<I>Enhalus acoroides</I>) Restoration Performance with Two Different Methods (Anchor and Seed) in Panjang Island, Jepara, Indonesia

Seagrass (<I>Enhalus acoroides</I>) Restoration Performance with Two Different Methods (Anchor and Seed) in Panjang Island, Jepara, Indonesia

Utilization of Satellite Imagery for Mapping the Distribution of Seagrass on Buhung Pitue Island

Trends in Seagrass Research and Conservation in Malaysian Waters

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