Morphometric characteristics of two seagrass species (Enhalus acoroides and Cymodocea rotundata) in four small islands in North Maluku, Indonesia

Ramili, Yunita; Bengen, Dietriech G.; Madduppa, Hawis; Kawaroe, Mujizat

doi:10.13057/biodiv/d190608

Cited by 3 publications

(4 citation statements)

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“…Cymodocea rotundata and Cymodocea serrulata were seagrass species commonly found in Indonesian waters (Ramili, Bengen, Madduppa, & Kawaroe, 2018). C. serrulata growth in intertidal regions, and found growing together with Halophila ovalis in seagrass ecosystems (Abu Hena, Misri, Japar Sidik, Hishamuddin, & Hidir, 2001).…”

Section: Resultsmentioning

confidence: 99%

Distribution of Seagrass in the Coast of Bahoi, Manembo-Nembo and Tandurusa, North Sulawesi, Indonesia

Menajang¹,

Herawati²,

Mahmudi³

et al. 2020

RJOAS

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Seagrass has important ecological functions, namely as a nursery-grown, spawning and protection areas for marine biota. In the world, there are 60 species of seagrasses, and in Indonesia, there are 14 species from 7 genera. The waters of North Sulawesi store a high potential of seagrass ecosystems. This study aimed to observe the distribution of seagrass from the Bahoi, Manembo-Nembo, and Tandurusa coast, North Sulawesi, Indonesia. Sampling carried out at the lowest ebb at the lunar or full moon phase. The method used for sampling is random, both for transect and squared lines. The results showed that from the Bahoi, Menembo-Nembo and Tandurusa coast, ten seagrass species from 7 genera and two families were found, namely Enhallus acoroides, Cymodocea rotundata, Cymodocea serrulata, Halodule uninervis, Halodule pinifolia, Halophila minor, Halophla ovalis, Syringodium isoetifolium, Thalassia hemprichii, dan Thalassodendron ciliatum. Information on seagrass distribution in an area can be taken into consideration for the government and related agencies in drafting a regulation in the management of seagrass ecosystem resources.

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Section: Resultsmentioning

confidence: 99%

Distribution of Seagrass in the Coast of Bahoi, Manembo-Nembo and Tandurusa, North Sulawesi, Indonesia

Menajang¹,

Herawati²,

Mahmudi³

et al. 2020

RJOAS

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“…Di Teluk Ambon Dalam, Sermatang (2022) melaporkan bahwa karakter morfometrik dari spesies ini, yaitu lebar daun 2,3−5,9 mm. Bahkan lebar daun maksimum C. rotundata di Perairan Maluku Utara adalah 8 mm (Ramili et al, 2018). Variasi karakteristik morfometrik yang ditunjukkan oleh jenis lamun menunjukkan adanya hubungan dengan kondisi lingkungan perairan pada setiap lokasi (Ramili et al, 2018) dan merupakan bentuk adaptasi spesies lamun.…”

Section: Tabel 5 Karakteristik Morfologi C Rotundata Pada Setiap Zona...unclassified

KEPADATAN, KARAKTER MORFOLOGI, DAN PERTUMBUHAN LAMUN Cymodocea rotundata DI PANTAI YANKARWAR, MANOKWARI, PAPUA BARAT: APAKAH ADA PERBEDAAN DIANTARA ZONA INTERTIDAL?

Lefaan

Peday

Duwit

et al. 2023

JPP

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Cymodocea rotundata is a seagrass species that occupy habitats in the intertidal zone. The ability of this species to occupy the intertidal zone is thought to be related to its particular morphological adaptations in response to fluctuations in local aquatic environmental conditions. This study aims to describe habitat conditions, distribution related to density, morphological differences, and growth among C. rotundata seagrass stands in the upper, middle, and lower intertidal zones of Yankarwar Beach, Manokwari, West Papua. Transects and quadrats methods were used to collect seagrass samples, so information on their distribution and density could be obtained. The seagrass samples collected were also analyzed (counted and measured) for their morphological characters including the number of leaves, leaf length, leaf width, horizontal sheath internode length, root length, stand weight, leaf weight, rhizome weight, and root weight. Seagrass growth was obtained by marking the leaves and observing them for 10 days. The results of this study indicate that the conditions of the physicochemical parameters of the intertidal waters are still suitable for the growth of this seagrass species. The highest density was found in the upper intertidal zone (3,161.73 stands.m-2) and followed by the middle intertidal zone (962.04 stands.m-2). Although most of the morphological characters of seagrasses and seagrass parts were relatively the same between the three intertidal zones, larger leaf widths and lengths of horizontal rhizome internodes were found in stands in the two upper intertidal zones. Differences in growth as reflected by the increase in leaf length and dry leaf weight also showed greater values in the upper and middle intertidal zones. This condition shows the adaptability of this seagrass species to variations in environmental parameter conditions in the middle and upper intertidal zone. In addition, the results of this study indicate the presence of C. rotundata, especially in the intertidal aquatic environment which has an important ecological role, including as a substrate stabilizer. Therefore, this vegetation conservation effort is very important. Keywords: intertidal zone, morphological adaptation, seagrass growth

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“…According to Yunitha [23], the existence and reproductive activity of seagrass are highly dependent on the environment so that the better the aquatic environment, the seagrass has a high chance of reproducing which affects its density. In addition, [24] stated that one of the physical factors affecting seagrass distribution is the availability of suitable substrates to grow.…”

Section: Environmental Conditionmentioning

confidence: 99%

“…The seagrass on the coast of Central Tapanuli are dominated by Enhalus acoroides, a species commonly found in tropical waters E. acoroides were known to have a widespread distribution in Indonesian waters [24,25]. This species is easy to identify because of its larger size than other types of seagrass.…”

Section: Identification Cover and Density Seagrassmentioning

confidence: 99%

Estimation of carbon stock in seagrass communities in Central Tapanuli

Harahap

Khairunnisa

Susetya

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

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This study aims to determine the carbon stock in seagrass communities in Central Tapanuli, North Sumatera, Indonesia. The research was conducted from July to August 2020 in the coastal areas of Hajoran and Jago Jago. The parameters measured in this study were density, coverage, biomass, carbon content, and carbon stock in seagrass. Biomass analysis and carbon measurement are divided into the top (above-ground biomass) and the bottom substrate (below-ground biomass). Carbon measurements are conducted using the loss on ignition (LOI) approach. The results showed that the seagrass ecosystem on the coast of Central Tapanuli Regency, which was covered by monospecies Enhalus acoroides, was in a less healthy condition with a cover percentage of 30.3-33.3% and a density of 59-67 shoots/m2. Above-ground and below-ground seagrass biomass reached 140.19-188.72 g/m2 and 368.13-423.69 g/m2 respectively, while carbon stock reached 70.57-94.86 g Corg/m2 and 18731-19603 g Corg/m2 and total standing stock range 257.87-290.90 g Corg/m2. The data obtained from this research can be used as a database to see the potential of seagrass beds as storage of CO2 and as an effort to mitigate and adapt to climate change.

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Morphometric characteristics of two seagrass species (Enhalus acoroides and Cymodocea rotundata) in four small islands in North Maluku, Indonesia

Cited by 3 publications

References 0 publications

Distribution of Seagrass in the Coast of Bahoi, Manembo-Nembo and Tandurusa, North Sulawesi, Indonesia

Distribution of Seagrass in the Coast of Bahoi, Manembo-Nembo and Tandurusa, North Sulawesi, Indonesia

KEPADATAN, KARAKTER MORFOLOGI, DAN PERTUMBUHAN LAMUN Cymodocea rotundata DI PANTAI YANKARWAR, MANOKWARI, PAPUA BARAT: APAKAH ADA PERBEDAAN DIANTARA ZONA INTERTIDAL?

Estimation of carbon stock in seagrass communities in Central Tapanuli

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