Diversity, coverage, distribution and ecosystem services of seagrass in three small islands of northern Papua, Indonesia: Liki Island, Meossu Island and Befondi Island

Nugraha, Aditya Hikmat; Tasabaramo, Ilham Antariksa; Hernawan, Udhi Eko; Rahmawati, Susi; Putra, Risandi Dwirama; Darus, Robba Fahrisy

doi:10.13057/biodiv/d221238

Cited by 9 publications

(10 citation statements)

References 24 publications

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“…Seagrasses are shallow coastal flowering marine plants that can be formed as extensive meadows or beds (Short et al 2007;Nugraha et al 2021) which play an important role as they provide ecosystem services (ES) to the coastal marine environment (Duarte et al 2013;Nordlund et al 2018). Decreasing of seagrass area can affect the ecosystem surrounding areas such as loss of nursery ground for fishes, reduction the detritus producer, lack of coastline protection, increase in coastal erosion, decrease in water clarity improvement, changes in nutrient regulation and carbon sequestration (Costanza et al 2014;Nordlund et al 2016;Boudouresque et al 2016;Unsworth et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Assessing the seagrasses meadows status and condition: A case study of Wori Seagrass Meadows, North Sulawesi, Indonesia

Sondak

Kaligis

2022

Biodiversitas

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Abstract. Sondak CFA, Kaligis EY. 2022. Assessing the seagrasses meadows status and condition: A case study of Wori Seagrass Meadows, North Sulawesi, Indonesia. Biodiversitas 23: 2156-2166. Seagrass meadows play an important role in the coastal ecosystem through the services they provide, however, they are one of the most threatened ecosystems in the coastal environment due to anthropogenic influences and rapid environmental changes. Seagrass meadows extent is not validated and the health condition is left unmonitored and unreported. In Indonesia, the information about the current status of seagrass meadows’ extent and health conditions is limited. We assess the seagrass meadow abundance, status, and health condition. We provide information about species abundance, density threats, and the health status of seagrass meadows in North Sulawesi, Indonesia, particularly in Wori District. This district has a vast extent of seagrass meadows but has been affected by the expansion of the industrial/tourism area within the region. This study found that seagrass meadows’ coverages were moderate, but their health status was unhealthy. Six seagrass species are found in this area, including Enhalus acoroides (L.f.) Royle, Thalassia hemprichii (Ehrenb.) Aschers, Cymodocea rotundata (Asch. & Schweinf.), Halodule pinifolia (Miki) Hartog, Halophila ovalis (R.Br.) Hook. F., and Syringodium isoetifolium (Asch.) Dandy. Our results highlight the communities’ activities, including gleaning, boat propeller, anchoring, mooring, sedimentation, and the effects of climate change on the environment as factors that could affect seagrass meadows' extent and health condition in the study sites.

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Section: Introductionmentioning

confidence: 99%

Assessing the seagrasses meadows status and condition: A case study of Wori Seagrass Meadows, North Sulawesi, Indonesia

Sondak

Kaligis

2022

Biodiversitas

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“…For example, Ambo-Rappe (2022) indicated the successful seagrass restoration using seeds in Spermonde Island, Indonesia, was determined by the area's exposure to wave actions. Other research in northern Papua (Nugraha et al, 2021) and Talaud Islands (Kawaroe et al, 2016) suggested the correlation between low coverage of seagrass meadows in the study areas with high wave exposure. However, most seagrass studies in Indonesia did not provide proper observations of the hydrodynamics, causing the lack of evidence and scientific explanations underlying the phenomena.…”

Section: Figurementioning

confidence: 60%

Hydrodynamics across seagrass meadows and its impacts on Indonesian coastal ecosystems: A review

Risandi¹,

Rifai²,

Lukman³

et al. 2023

Front. Earth Sci.

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Seagrass canopies are important components of the world’s coastal environments providing critical ecological services. Nearshore hydrodynamics, i.e., waves and currents, are essential in controlling the ecological processes across coastal environments. Seagrass meadows can impose more complex hydrodynamics processes by attenuating sea-swell waves and decreasing the impact of nearshore mean water level rise due to wave setup and Infragravity (IG) waves. Consequently, the seagrasses dissipate waves and reduce flows allowing sediments to settle and accrete the shorelines. However, despite their significant roles, knowledge of hydrodynamics in the Indonesian seagrass ecosystems is relatively limited compared to other coastal ecosystems such as sandy beaches, mangroves, and coral reefs. This review highlights the dynamics of waves and currents, and their interaction with sediment transport and ecological processes, including biogeochemical and dispersal processes on the seagrass ecosystem contributing to the existing seagrass research in Indonesia. The associated literature is collected from scientific databases such as Scopus and Google Scholar that range between 1965 and 2021. The result showed that most of the research on hydrodynamic in seagrass ecosystems was carried out in temperate zones. Until recently, there have been limited publications discussing the interaction between the Indonesian (tropical) seagrass ecosystem and hydrodynamics parameters, even though the region has abundant seagrass species. Moreover, Indonesia is strongly influenced by various atmospheric-oceanic forcing, including the Asian monsoon affecting the dynamic of the coastal area with seagrass ecosystems. At a canopy scale, the correlation between the nearshore (tropical) hydrodynamics and ecological processes in the system is yet to be explored. Considering the potential benefit of seagrasses to coastal ecosystems, developing future research in hydrodynamics across the ecosystem is critical to overcoming the knowledge gaps in Indonesia. The knowledge gained could support the Indonesian seagrass ecosystem services and their resilience to potential hazards and climate change.

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“…Seagrass life is influenced by environmental conditions such as substrate, temperature, salinity, nutrients, brightness, and current speed (Fitrian et al 2017). Seagrass plays a significant role in fisheries (Nugraha et al 2021). Ecologically, seagrass provides habitat, spawning grounds, and shelter for fish and invertebrates (Unsworth et al 2019).…”

Section: Introductionmentioning

confidence: 99%

“…ex Solms) Asch., and Thalassodendron ciliatum (Forssk.) Hartog (Sjafrie et al 2018;Kurniawan et al 2020;Nugraha et al 2021). The area of seagrass beds in Indonesia in 2017 was around 293,464 ha, with moderate conditions (Sjafrie et al 2018;Hernawan et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Seagrass diversity in Pulau Banyak, Aceh Singkil District, Indonesia

ERNIATI,

ANDIKA,

IMANULLAH

et al. 2024

Biodiversitas

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Abstract. Erniati, Andika Y, Imanullah, Imamshadiqin, Erlangga, Rahmad, Tauladan TA, Siregar FR, Fitri A, Ritonga GH. 2023. Seagrass diversity in Pulau Banyak, Aceh Singkil District, Indonesia. Biodiversitas 24: 6621-6628. Seagrass is a high-level plant where life activities are submerged in seawater. Currently, the seagrass ecosystem is threatened with destruction and disappearance. The extent of seagrass ecosystems globally was estimated to have declined by about 58%. The solution to this problem is to balance local communities' utilization of biological resources and biodiversity maintenance. The biodiversity aspect of seagrass is key to the sustainability of seagrass ecosystems. Banyak Island is one of the sub-districts in Aceh Singkil Regency, which consists of a cluster of small islands and has rich fisheries and marine potential, one of them is seagrass, where station 1 is Balong Island, Stasion 2 is Balong Island, Stasion 3 is Lamun Island and Stasion 4 is Rago-Rago Island. This study aimed to assess the diversity of seagrass beds, including seagrass species composition, density, percentage cover, and water quality that affect the existence of seagrass ecosystems. This study used a purposive sampling method with 3 transect lines spaced 50 m perpendicular from the shoreline to the sea. Each transect line has 5 plots with a distance of 10 meters measuring 50 x 50 cm2, and the water quality parameters were measured in situ. This research found 5 seagrass species, namely T. hemprichii, C. rotundata, E. acroides, S. isoetifolium, and H. ovalis. C. rotundata is the species with the highest density on Matahari Island, but seagrass diversity is low, and no species were dominant in the groups. The results of PCA analysis showed that the environmental factors that most influenced the pattern of seagrass distribution and density were nitrate, phosphate, and substrate. The conclusion revealed that seagrass diversity on Banyak Islands is relatively low.

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Diversity, coverage, distribution and ecosystem services of seagrass in three small islands of northern Papua, Indonesia: Liki Island, Meossu Island and Befondi Island

Cited by 9 publications

References 24 publications

Assessing the seagrasses meadows status and condition: A case study of Wori Seagrass Meadows, North Sulawesi, Indonesia

Assessing the seagrasses meadows status and condition: A case study of Wori Seagrass Meadows, North Sulawesi, Indonesia

Hydrodynamics across seagrass meadows and its impacts on Indonesian coastal ecosystems: A review

Seagrass diversity in Pulau Banyak, Aceh Singkil District, Indonesia

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