scholarly journals Pengelolaan Ekosistem Lamun untuk Keberlanjutan Populasi Kuda Laut di Desa Sebong Pereh, Kabupaten Bintan

2020 ◽  
Vol 25 (3) ◽  
pp. 405-411
Author(s):  
Rizqan Khairan Munandar ◽  
Sulistiono Sulistiono ◽  
Isdrajad Setyobudiandi
Keyword(s):  
Swot Analysis ◽  
Management Strategies ◽  
Environmental Parameters ◽  
Sampling Technique ◽  
Research Station ◽  
Thalassia Hemprichii ◽  
Sustainable Resources ◽  
Halophila Ovalis ◽  
Seagrass Ecosystem ◽  
Seagrass Ecosystems

This research is about studying ecosystems that was designed to analyze the relationship between seagrass ecosystem, environmental competition, and seahorse participation to analyze the distribution of seagrass ecosystems and the abundance of sea horses, and to analyze seahorse-based ecosystem management strategies. This research was conducted in March–June 2017. The determination of the research station was based on purposive sampling technique. Retrieval of seagrass ecosystem data was conducted using a quadrant with the size of 50 x 50 cm transect. Seahorse data were collected using visual census on seagrass transect with a plot of 100 x 100 cm. The relationships between environmental parameters, seagrass ecosystems, and seahorses were calculated using XL Starting 2015. Management of seagrass ecosystems was analyzed using SWOT. Analysis of seagrass included type, density, and INP. Seahorse analysis calculated the abundance of seahorse. The results found 6 species of seagrasses, namely Enhalus acoraides (Ea), Thalassia hemprichii (Th), Halophila ovalis (Ho), Syringodium isoetifolium (Si), Cymodocea serrulata (Cs), and Thalassodendron ciliatum (Tc) with a density that covered sea horse  abundance, and INP which had several types of roles in the research location. The management is carried out with the objectives of sustainable resources.   Keywords: seagrass ecosystem, seahorse, Sebong Pereh Village

scholarly journals ANALISIS HUBUNGAN JARAK DAN KEDALAMAN DENGAN STRUKTUR KOMUNITAS LAMUN DI PANTAI PANCURAN, KEPULAUAN KARIMUNJAWA

2018 ◽  
Vol 7 (4) ◽  
pp. 352-360
Author(s):  
Muhammad Gaffar Ridho ◽  
Supriharyono Supriharyono ◽  
Arif Rahman
Keyword(s):  
Environmental Parameters ◽  
Sampling Technique ◽  
Sediment Characteristics ◽  
Thalassia Hemprichii ◽  
Enhalus Acoroides ◽  
Seagrass Community ◽  
Halophila Ovalis ◽  
Cymodocea Rotundata ◽  
Syringodium Isoetifolium ◽  
Index Of Diversity

Pantai Pancuran adalah salah satu lokasi konservasi padang lamun di Taman Nasional Karimunjawa dengan vegetasi padang lamun. Penelitian ini dilaksanakan pada bulan April 2018 dengan tujuan untuk mengetahui hubungan jarak dan kedalaman dengan struktur komunitas lamun yang meliputi kerapatan dan indeks keanekaragamannya. Materi yang digunakan adalah lamun, dengan menggunakan metode deskripsi eksploratif yang bersifat observasi dengan objek yang diteliti di lapangan. Teknik pengambilan sampel menggunakan kuadran transek ukuran 1x1 meter yang tersebar di 3 stasiun berdasarkan jarak dan kedalaman serta terdapat 6 plot pada setiap stasiunnya. Parameter lingkungan yang diamati meliputi jarak dan kedalaman, nitrat dan fosfat sedimen, salinitas, suhu, derajat keasaman (pH), kecerahan, kecepatan arus, pasang surut, dan karakteristik sedimen. Hubungan jarak dan kedalaman dengan struktur komunitas lamun diproses menggunakan analisis regresi dan korelasi. Hasil penelitian ini didapatkan 6 jenis lamun yaitu Thalassia hemprichii, Cymodocea rotundata, Halophila ovalis, Syringodium isoetifolium, Enhalus acoroides, dan Halodule pinifolia. Karakteristik sedimen didominasi oleh pasir halus sebanyak 34,960 %. Korelasi jarak dan kedalaman dengan struktur komunitas lamun diperoleh nilai                 (r = -0,717) pada kerapatan dan ( r = 0,894) pada indeks keanekaragaman.                  Pancuran Beach is one of the seagrass conservation areas in Karimunjawa National Park. This study was conducted in April 2018, in order to investigate the relation of distance and depth on the structure of seagrass community which included the density and index of diversity. The method used in this study is seagrass, using explorative description method that is observation to the object study in the field. The sampling technique uses a 1x1 meter transect quadrant spread over 3 stations based on distance and depth with includes 6 plots at each station. Environmental parameters observed include distance and depth, sediment of nitrate and phosphate, salinity, temperature, acidity (pH), brightness, current velocity, tides, and sediment characteristics. The relationship between distance and depth on the structure of seagrass community processed by regression and correlation analysis . The results of the study found 6 types of seagrass, there were Thalassia hemprichii, Cymodocea rotundata, Halophila ovalis, Syringodium isoetifolium, Enhalus acoroides, and Halodule pinifolia. Sediment characteristics were dominated is fine sand of 34.960%. The correlation of distance and depth on the structure of seagrass community resulted a value (r = -0,717) for density and  (r = 0,894) for index of diversity. 

scholarly journals Seagrass Potential In Aisandami Village Wondama Bay and It’s Management Strategy

2020 ◽  
Vol 4 (2) ◽  
pp. 111
Author(s):  
Selvi Tebay ◽  
Paulus Boli ◽  
Joiner F Ainusi
Keyword(s):  
Habitat Degradation ◽  
Environmental Services ◽  
Suitable Model ◽  
Thalassia Hemprichii ◽  
Seagrass Community ◽  
Halophila Ovalis ◽  
Seagrass Ecosystem ◽  
Seagrass Ecosystems ◽  
Secondary Productivity ◽  
June July

Seagrass ecosystem have primary and secondary productivity with great support to the abundance and diversity of fishes and it’s biota associations. Seagrass ecosystems are also as a coastal resources that have an important role of environmental services. Some community activities will directly or indirectly can have an impact on habitat degradation and biodiversity of seagrass ecosystems. The importance oto assess the potential of seagrass ecosystem and it’s biotas association is to know of sea grass’s role to provides of environmental services is the aim of this study. This research was conducted in the waters of Kampung Aisandami, Teluk Wondama Regency during June - July 2019. Data collection methodology was used is structured random methods quadrant transects at two observations to reveal data on seagrass community structure. The datas obtained were tabulated and displayed in tables and figures. Thalassia hemprichii and Enhalus acoroides were found at two observation sites. Another type found outside the observation transect is Halophila ovalis. E. acoroides seagrass species have a frequency value is 0.77 which shows that distribution of E. acoroides is wider than T. hemprichii which has a frequency is 0. 58. Both of station show that T. hemprichii has a frequency value of 0.7 where it indicates that distribution is wider compare with E. Acoroides. T hemprichii has the highest relative density at both observation stations. The status of seagrass of both stations is classified as poor or unhealthy with seagrass value ≥ 30-59.9%. The highest importance index is the T. hemprichii seagrass at both stations and has a higher role than the E. acoroides. The community-based management model is the a suitable model that can be used to developing coastal ecosystem management including seagrass ecosystems in this village.

scholarly journals Physiological Response of Thallasia hemprichii on Antrophogenic Pressure In Pari Island, Seribu Islands, DKI Jakarta

2017 ◽  
Vol 22 (1) ◽  
pp. 40 ◽  
Author(s):  
Aditya Hikmat Nugraha ◽  
Dietriech G. Bengen ◽  
Mujizat Kawaroe
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Physiological Responses ◽  
Research Station ◽  
Marine Biota ◽  
Nursery Ground ◽  
Thalassia Hemprichii ◽  
Growth Physiology ◽  
Rhizome Growth ◽  
Seagrass Ecosystem

Seagrass ecosystem is one of tropical marine ecosystem and have important function. The function of ecosystem like a feeding and nursery ground for marine biota. Antrophogenic pressure is one of threat for seagrass ecosystem sustainability. This research study about effect antropogenic pressure for seagrass Thallasia hemprichii physiology response in some different location at Great Barrier Pari Island. The physiology response study cover growth, heavy metal bioaccumulation and histology analysis. The result shows that growth of leaf and rhizome Thalassia hemprichii have positif correlation with nutrient consentration in environment. The highest growth of leaf Thalassia hemprichii at 2nd station (4.16 mm.day-1) and the highest growth of rhizome Thalassia hemprichii at 4th station (1.3 mm.day-1). Seagrass can accumulation heavy metal from environment. The highest heavy metal accumulation is Pb. Not correlation between heavy metal consentration in seagrass with heavy metal concentration from environment. Analysis histology result that not damage seagrass tissue in all research station. Keyword : Bioacumulation,Growth,Physiology,Seagrass, Thalassia hemprichiiSeagrass ecosystems is one of the tropical marine ecosystems that have important functions, among others as a feeding and nursery ground for marine life. Anthropogenic stress is one of the threats that may inhibit the survival of seagrass ecosystems. This study examines the effects of anthropogenic pressures on physiological responses of seagrass Thalassia hemprichii at several different locations in Pari Islands. Physiological responses studied were leaves and rhizome growth, bioaccumulation of heavy metals and histological tissue analysis on seagrass. The results showed that the growth response of seagrass has a positive correlation with the nutrients in the environment. Seagrass leaf growth is highest at Station 2 (4.16 mm.day-1) and rhizome growth is highest at Station 4 (1.3 mm.day-1). Seagrass accumulate heavy metals from the environment and accumulation of heavy metals is highest on Pb. There is no correlation between the concentration of heavy metals in the seagrass and environment. The results of histological analysis showed that there was no damage to the tissue of seagrass leaf and rhizome. Keywords : Bio-acumulation, Growth, Physiology, Seagrass, Thalassia hemprichii

scholarly journals Biomasa dan Simpanan Karbon pada Ekosistem Lamun di Perairan Batulawang dan Pulau Sintok Taman Nasional Karimunjawa, Jepara

2021 ◽  
Vol 10 (3) ◽  
pp. 413-420
Author(s):  
Annisa Rhamadany ◽  
Chrisna Adhi Suryono ◽  
Delianis Pringgenies
Keyword(s):  
Carbon Content ◽  
Carbon Storage ◽  
Thalassia Hemprichii ◽  
Enhalus Acoroides ◽  
Halophila Ovalis ◽  
A Value ◽  
Seagrass Biomass ◽  
Seagrass Ecosystems ◽  
Cymodocea Rotundata ◽  
Thalassodendron Ciliatum

Ekosistem lamun memiliki fungsi ekologi dan ekonomi yang tinggi. Peran ekosistem lamun dalam penyimpanan karbon akan tetapi masih belum menjadi sorotan. Tujuan dari penelitian ini yaitu untuk mengetahui nilai biomassa dan estimasi simpanan karbon pada ekosistem lamun di Perairan Batulawang, Pulau Kemujan serta Pulau Sintok, Taman Nasional Karimunjawa. Penelitian ini dilaksanakan pada 7 – 14 Noevmber 2019 di Perairan Batulawang dan Pulau Sintok, Taman Nasional Karimunjawa. Metode penelitian di lapangan menggunakan metode SeagrassWatch, sementara nilai biomassa dan nilai estimasi simpanan karbon dihitung menggunakan metode Metode Loss of Ignition (LOI) di laboratorium. Data yang diperoleh berupa pengukuran berat kering untuk menghitung biomassa dan analisa kandungan karbon pada lamun dan sedimen. Hasil penelitian didapatkan empat jenis lamun di Perairan Batulawang yaitu Enhalus acoroides, Thalassia hemprichii, Cymodocea serrulata, dan Thalassodendron ciliatum sedangkan di Pulau Sintok terdapat tiga jenis lamun yang ditemukan yaitu Thalassia hemprichii, Cymodocea rotundata, dan Halophila ovalis. Nilai total biomassa lamun terbesar pada Perairan Batulawang yaitu Enhalus acoroides dengan nilai 849,75 gbk/m2 dan nilai total biomassa lamun terkecil Thalassodendron ciliatum dengan nilai 29 gbk/m2. Nilai total biomassa lamun terbesar pada Pulau Sintok yaitu Cymodocea rotundata dengan nilai 177,75 gbk/m2dan nilai total biomassa lamun terkecil Halophila ovalis dengan nilai 4,75 gbk/m2. Hasil pengukuran karbon lamun pada Perairan Batulawang yaitu 12,97 – 359,87 gC/m2­ dan 258,20 – 541,51 gC/m2 pada sedimennya. Hasil pengukuran karbon pada lamun di Pulau Sintok yaitu 2,35 – 85,80 gC/m2 dan 204,92 – 765,92 gC/m2 pada sedimen. Kandungan karbon paling besar terdapat pada bagian bawah substrat (below ground). Kandungan karbon pada bagian bawah substrat tidak terganggu oleh faktor lingkungan (gelombang, arus, dan ulah manusia) sehingga terakumulasi baik. Seagrass ecosystems have high ecological and economic functions. The role of seagrass ecosystems in carbon storage, however, has not yet been highlighted. The purpose of this study was to determine the value of biomass and estimated carbon storage in seagrass ecosystems in Batulawang waters, Kemujan Island and Sintok Island, Karimunjawa National Park. This research was conducted on 7 − 14 November 2019 in Batulawang waters and Sintok Island, Karimunjawa National Park. The research method in the field uses the SeagrassWatch method, while the biomass value and the estimated value of carbon storage are calculated using the Loss of Ignition (LOI) method in the laboratory. The data obtained were measurements of dry weight to calculate biomass and analysis of carbon content in seagrass and sediments. The result shows that there are four species of seagrass in Batulawang Waters, they are Enhalus acoroides, Thalassia hemprichii, Cymodocea serrulata, and Thalassodendron cliatum meanwhile in Sintok Island there are three species, they are, Thalassia hemprichii, Cymodocea rotundata, and Halophila ovalis. The measurement of carbon is done by using Loss on Ignition Method. The highest total seagrass biomass in Batulawang waters is Enhalus acoroides with a value of 849.75 gbk/m2 and the lowest total seagrass biomass is Thalassodendron ciliatum with a value of 29 gbk/m2. The highest total seagrass biomass on Sintok Island is Cymodocea rotundata with a value of 177.75 gbk/m2 and the lowest total seagrass biomass is Halophila ovalis with a value of 4.75 gbk/m2. The results of measurements of seagrass carbon in Batulawang waters are 12,97 – 359,87 gC/m2­ and 258,20 – 541,51 gC/m2 on the sediments. The result of seagrass carbon measurement in Sintok Island is 2,35 – 85,80 gC/m2 and 204,92 – 765,92 gC/m2 on the sediments. The largest carbon content is at the bottom of the substrate (below ground). The carbon content at the bottom of the substrate is not disturbed by environmental factors (waves, currents, and human activities) so that it accumulates well.

scholarly journals SIMPANAN KARBON PADANG LAMUN DI KAWASAN PANTAI SANUR, KOTA DENPASAR

2016 ◽  
Vol 10 (1) ◽  
pp. 46 ◽  
Author(s):  
Yoga Ibnu Graha ◽  
I Wayan Arthana ◽  
I Wayan Gede Astawa Karang
Keyword(s):  
Carbon Storage ◽  
Coastal Area ◽  
Carbon Stock ◽  
Environmental Parameters ◽  
Carbon Stocks ◽  
Thalassia Hemprichii ◽  
Bottom Substrate ◽  
Total Potential ◽  
Halophila Ovalis ◽  
Seagrass Biomass

Seagrass is one of the marine resources that considerably potential as a CO2 absorbent and functioned as carbon sinks in the oceans known as blue carbon. The result of carbon sequestration from the process of photosynthesis is stored as carbon stocks on seagrass tissue, or streamed to multiple compartments, such as sediment, herbivores and other ecosystems. This study aims to assess the potential for carbon stock storage in biomass on a tissue of seagrass in Sanur Beach coastal area. The observations of seagrass are included the seagrass type, seagrass stands, and measurement of environmental parameters. Then the sampling was conducted to obtain the value of seagrass biomass. The carbon stocks obtained through the conversion of biomass by using carbon concentration analysis of seagrass tissue and then carried a spatial distribution of carbon stocks. Types of seagrass found in Sanur Beach coastal area consist of eight species that are Enhalus acroides, Thalassia hemprichii, Halophila ovalis, Syringodium isoetifolium, Cymodocea serrulata, Cymodocea rotundata, Halodule uninervis and Halodule pinifolia. The result of the carbon stock seagrass in the bottom substrate is 60% greater than the carbon stock in the top substrate which is 40%. Seagrass covering 322 ha of Sanur Beach coastal area with a total potential carbon storage of 66.60 tons or 0.21 tons / ha. Seagrass key role as a carbon storage is on the bottom substrate tissue, and Enhalus acroides is a seagrass species that contributes the most to the carbon storage.

scholarly journals STRATEGI PENGELOLAAN EKOSISTEM HUTAN MANGROVE DI NEGERI AMAHAI

2021 ◽  
Vol 17 (1) ◽  
pp. 57-67
Author(s):  
Achmad J Ely ◽  
Lolita Tuhumena ◽  
Juanita Sopaheluwakan ◽  
Yvonne Pattinaja
Keyword(s):  
Mangrove Forest ◽  
Swot Analysis ◽  
Management Strategies ◽  
Sampling Technique ◽  
Mangrove Ecosystem ◽  
Purposive Sampling ◽  
Community Needs ◽  
Mangrove Area ◽  
External Threats ◽  
Nutritional Needs

Mangrove forest is a very productive and beneficial ecosystem. Mangrove forest resources in Amahai Village will be increasingly exploited along with the increasing population and economic pressure. The aim of this research is to identify the forms of use by the community in the mangrove area, and to recommend mangrove ecosystem management strategies in Amahai Village. This research was conducted in the mangrove forest area of ​​Amahai Village, Central Maluku Regency from September to November 2018. Sampling was carried out by purposive sampling technique of 36 respondents. The analytical method used is data analysis of descriptive qualitative to identify forms of utilization by the community. SWOT analysis is used to analyze the management strategies of mangrove ecosystem on Amahai Village by identifying internal strengths and weaknesses as well as opportunities external threats. The results obtained five forms of utilization carried out in the mangrove area of ​​Amahai Village, those are fishing, collecting sea cucumbers, gleaning shellfish (bameti), tourism (recreation), and research. There are eight management strategies produced, namely 1) implementing government policies to maintain the potential of mangrove ecosystem resources in order to meet community needs and regional income; 2) utilizing the potential of mangrove ecosystem resources for ecotourism activities and support science and technology; 3) revitalization of customary institutions as an effort to manage mangrove ecosystem areas; 4) organizing resource processing activities in the mangrove ecosystem to meet nutritional needs and increase community income; 5) development of mangrove areas with an environmental insight; 6) improving MCS (Monitoring, Controling and Surveillance); 7) improving coordination among stakeholders; and 8) increasing community knowledge and awareness about the function of mangrove ecosystems and the skills of the communities around the mangrove area.   ABSTRAK Hutan mangrove merupakan suatu ekosistem yang sangat produktif dan memberikan manfaat. Sumberdaya hutan mangrove di Negeri Amahai akan semakin tereksploitasi seiring dengan meningkatnya jumlah penduduk dan desakan ekonomi. Tujuan penelitian ini adalah untuk mengidentifikasi bentuk-bentuk pemanfaatan yang dilakukan oleh masyarakat di kawasan mangrove, serta merekomendasikan strategi pengelolaan ekosistem mangrove di Negeri Amahai. Penelitian ini dilaksanakan di kawasan hutan mangrove Negeri Amahai, Kabupaten Maluku Tengah pada bulan September hingga November 2018. Pengambilan sampel dilakukan dengan teknik purposive sampling terhadap responden sebanyak 36 orang. Metode analisis yang digunakan adalah analisis data deskriptif kualitatif untuk mengidentifikasi bentuk-bentuk pemanfaatan yang dilakukan masyarakat. Analisa SWOT digunakan untuk menganalisis strategi pengelolaan ekosistem mangrove Negeri Amahai dengan mengideintifikasi kekuatan dan kelemahan internal serta peluang dan ancaman eksternal. Hasil penelitian diperoleh lima bentuk pemanfaatan yang dilakukan pada kawasan mangrove Negeri Amahai yaitu penangkapan ikan, pengumpulan teripang, bameti, wisata (rekreasi), serta penelitian. Terdapat delapan strategi pengelolaan yang dihasilkan yaitu 1) mengimplementasikan kebijakan pemerintah untuk menjaga potensi sumberdaya ekosistem mangrove guna pemenuhan kebutuhan masyarakat dan pendapatan daerah; 2) memanfaatkan potensi sumberdaya ekosistem mangrove untuk kegiatan ekowisata serta mendukung ilmu pengetahuan dan terknologi; 3) revitalisasi kelembagaan adat sebagai upaya mengelola kawasan eksoistem mangrove; 4) menyelenggarakan kegiatan pengolahan sumberdaya pada ekosistem mangrove untuk memenuhi kebutuhan gizi dan meningkatkan pendapatan masyarakat; 5) pengembangan kawasan mangrove yang berwawasan lingkungan; 6) peningkatan monitoring, controling and surveilance; 7) meningkatkan koordinasi antar stakeholder; dan 8) meningkatkan pengetahuan dan kesadaran masyarakat tentang fungsi ekosistem mangrove serta keterampilan masyarakat sekitar daerah mangrove   Kata Kunci: Strategi pengelolaan, ekosistem mangrove, SWOT, keberlanjutan, Negeri Amahai

scholarly journals Community structure and condition of seagrass meadows in Ayau Islands, Raja Ampat Regency

2020 ◽  
Vol 45 (1) ◽  
pp. 13-24
Author(s):  
Andri Irawan ◽  
Muhammad Hafizt ◽  
Udhi Eko Hernawan
Keyword(s):  
Community Structure ◽  
Environmental Parameters ◽  
Water Clarity ◽  
Well Being ◽  
Common Species ◽  
Thalassia Hemprichii ◽  
Seagrass Meadows ◽  
Halophila Ovalis ◽  
Seagrass Cover ◽  
Baseline Information

Seagrass meadows are an important component of coastal ecosystems, providing many ecosystem services beneficial for human well-being. Basic information about seagrass meadows in Indonesia is relatively limited, particularly in the eastern part of Indonesia, such as the remote Ayau Islands in Raja Ampat. In this paper, we reported the community structure and condition of seagrass meadows in Ayau Islands surveyed during Nusa Manggala Expedition in November 2018. We conducted the seagrass survey using quadrat transect method at five locations, i.e. Reni, Rutum, Abidon, Kanober, and Dorehkar. In the survey, we assessed parameters of community structure, including habitat extent, species composition, seagrass cover, seagrass density, macroalgae and epiphyte cover. We also recorded environmental parameters, i.e. substrate types, water clarity, salinity, water temperature, and nutrient (phosphate and nitrate). Our study showed that seagrass meadows in Ayau Islands are multispecies meadows, composed of two to five species. In overall, five species recorded in Ayau Islands are Cymodocea rotundata, Enhalus acoroides, Halodule pinifolia, Halophila ovalis, and Thalassia hemprichii. The most common species is T. hemprichii as it can be found in all locations. Meadows in Reni, Rutum, and Dorehkar are in a healthy condition, while in Abidon and Kanober are in less healthy condition. This information is of significance as baseline information needed for seagrass conservation planning.

DENSITY AND THE COVERAGE OF SEAGRASS ECOSYSTEM IN BAHOI VILLAGE COASTAL WATERS, NOTRH SULAWESI

2017 ◽  
Vol 9 (1) ◽  
pp. 375-383 ◽  
Author(s):  
Muh. Fahruddin ◽  
Fredinan Yulianda ◽  
Isdradjad Setyobudiandi
Keyword(s):  
Coastal Waters ◽  
Seagrass Species ◽  
Reef Habitat ◽  
Thalassia Hemprichii ◽  
Halophila Ovalis ◽  
Seagrass Ecosystem ◽  
Seagrass Cover ◽  
Cymodocea Rotundata ◽  
Syringodium Isoetifolium ◽  
Coral Reef Habitat

Physical seagrass ecosystem damage have been reported in various regions in Indonesia. Seagrass ecosystem damage is caused by human activity such as trampling seagrass and boats that muddy the waters and reduced the density and seagrass cover. This study aims to provide information about the density and the coverage of seagrass. The method used in this research is the transect method measuring 50x50 cm squared at three different locations by considering coastal ecosystems Bahoi village that already exist. Station 1 is near to mangrove habitat, station 2 is right on seagrass habitats, and station 3 is near to coral reef habitat. The results indicated there is six seagrass species that found in the Bahoi village which is Enhalus acoroides, Thalassia hemprichii, Cymodocea rotundata, Syringodium isoetifolium, Halophila ovalis, and Halodule uninervis. The density and seagrass cover is shows that the station 1 has the highest density and seagrass cover percentage compared with the other stations. The highest density of seagrass species located in station 1 with 955 individuals/m2, and the lowest was located at station 3 with 699 individuals/m2. While the highest cover percentage is located at station 1 with 270% and the lowest located at station 3 with 229%. Keyword: seagrass ecosystem, density, coverage, Bahoi

POTENSI EKOSISTEM PADANG LAMUN DI KAWASAN WISATA BAHARI GUGUSAN PULAU PARI, DKI JAKARTA

2018 ◽  
Vol 12 (03) ◽  
pp. 59-70
Author(s):  
Aditano Yani Retawimbi
Keyword(s):  
Field Research ◽  
Tourist Attraction ◽  
Percent Cover ◽  
Thalassia Hemprichii ◽  
Marine Tourism ◽  
Halophila Ovalis ◽  
Seagrass Ecosystem ◽  
Cymodocea Rotundata ◽  
Syringodium Isoetifolium ◽  
Descriptive Method

Marine Tourism Area at Pari Island cluster has a variety of ecosystems, one of them is the seagrass ecosystem. Seagrass is one of the coastal and marine resources, which has the potential to be developed as a resource for tourist attraction in the marine tourism area of Pari Islands. Purpose this study is to describe seagrass conditions, is it worthed to be used as a tourist attraction by conducting field research of species composition, distribution, percent cover at marine tourism territory Pari Islands, DKI Jakarta. The study was conducted from April-May 2017 with the descriptive method, where this method is done by describing or describe seagrass conditions. Survey and field data acquisition carried out in Pari Islands at 10 stations using the quadrant transect method. Based on field observation, in the field was found 5 species of seagrass species Cymodocea rotundata, Enhalus acoroides, Halophila ovalis, Syringodium isoetifolium and Thalassia hemprichii that can be a potential attraction for marine tourism. The results of calculations percent cover of seagrass shows that the highest percent cover was at station 9 with total percent was 76,2 %, while the lowest percent cover was at station 2, amounting to 20,4 %. Keywords: Marine Tourism, Pari Islands, Seagrass Beds

scholarly journals Determining seagrassess community structure using the Braun – Blanquet technique in the intertidal zones of Islas de Gigantes, Philippines

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Quin Yudelmo Clarito ◽  
Nora O. Suerte ◽  
Elena C. Bontia ◽  
Ivy Maestrecampo Clarito
Keyword(s):  
Species Diversity ◽  
Diversity Index ◽  
Environmental Parameters ◽  
Mean Value ◽  
Canopy Height ◽  
Thalassia Hemprichii ◽  
Percentage Cover ◽  
Seagrass Ecosystems ◽  
Cymodocea Rotundata ◽  
Syringodium Isoetifolium

The seagrass ecosystem which is considered the most productive ecosystem occurs in tropical and subtropical shallow marine waters where it supports diverse flora and fauna. Seagrasses of Islas de Gigantes, Carles, Iloilo were assessed to  determine species diversity, abundance, canopy height and percentage cover. Braun – Blanquet technique was used where 3 transects were laid in each station in three barangays of Islas de Gigantes, namely: Barangay Asluman, Barangay Granada and Barangay Gabi. A total of 7 species were found, Thalassia hemprichii, Cymodocea rotundata, Cymodocea serrulata, Halodule pinifolia, Halodule uninervis, Enhalus acoroides and Syringodium isoetifolium. Using the Shannon Diversity Index, the seagrass bed in Gabi was the most diverse with a value of 2.8. Sorenson's coefficient (CC) was used to compute the species similarity attributes indicating that the three communities have many similarities to each other in terms of species diversity and environmental parameters that affect seagrass ecosystems. Syringodium isoetifolium had recorded the highest number of shoots (475 shoots/m2) in Granada. The percentage cover of seagrasses varied across the sampling sites ranging from 55% - 67.50%, with a mean value of 62.50%. However, E. acoroides had the tallest canopy height recorded that  ranged from 12.33 – 24.83 cm.

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