scholarly journals Asosiasi Echinodermata pada Ekosistem Padang Lamun di Pantai Samuh, Nusa Dua, Bali

2018 ◽  
Vol 5 (1) ◽  
pp. 100
Author(s):  
Wahyu Ilvita Vindia ◽  
Pande Gde Sasmita Julyantoro ◽  
Endang Wulandari
Keyword(s):  
Species Composition ◽  
Coastal Waters ◽  
Positive Association ◽  
Distribution Patterns ◽  
Limited Information ◽  
Halophila Ovalis ◽  
Seagrass Ecosystem ◽  
Syringodium Isoetifolium ◽  
Species Composition And Distribution ◽  
Diadema Setosum

Seagrass beds and their associate biota are very important in maintaining the balance of coastal ecosystems. Samuh Beach is one of seagrass ecosystem area in Bali Island. One of the biota that exists in the seagrass ecosystem in Samuh Beach is Echinodermata. Since the limited information and the complex activities at Samuh Beach make research about associations of Echinodermata with seagrass, this research seems become important to be conducted. This study was aimed to determine the density of species, species composition, and distribution patterns of lamun and Echinodermata in the coastal waters of Samuh beach. Data analysis was performed by using density type, species composition, dispersion index of morisita and association. The average seagrass density of each station in Samuh coastal waters ranged from 156-246 stands/m2 and the highest density of Echinoderms is Diadema setosum in each station. The species composition of seagrass in Samuh beach comprises five species of seagrass namely: Enhalus acoroides, Halophila ovalis, Thalassodendron ciliatum, Cymodocea serrulata and Syringodium isoetifolium. The composition of Echinodermata species that found amounted to 13 species of Echinodermata namely: Diadema setosum, Amphiura sp., Archaster typicus, Asterias sp., Mespilia globulus, Tripneustes gratilla, Pseudoboletia maculata, Protoreaster nodusus, Ophiactis resillens, Ophiopteris antipodum, Centrostephanus rodgersii, Echinothrix and Echinothrix mathei. Based on the calculation of morisita, seagrass and Echinodermata Index in Samuh Beach was spread uniformly and clumped. The result of association analysis showed that there were positive association, negative association and association with no relation between seagrass and Echinodermata in Samuh Beach.

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

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

2017 ◽  
Vol 9 (1) ◽  
pp. 375
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

<p><em>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/m<sup>2</sup>, and the lowest was located at station 3 with 699 individuals/m<sup>2</sup>. While the highest cover percentage is located at station 1 with 270% and the lowest located at station 3 with 229%.</em></p><p><em> </em></p><p><strong><em>Keyword: </em></strong><em>seagrass ecosystem, density, coverage, Bahoi</em></p>

scholarly journals STRUKTUR KOMUNITAS DAN ASOSIASI LAMUN (Seagrass) DI PERAIRAN PANTAI RUA PULAU TERNATE PROVINSI MALUKU UTARA

2013 ◽  
Vol 13 (1) ◽  
Author(s):  
Riyadi Subur
Keyword(s):  
Coastal Waters ◽  
Coastal Region ◽  
Positive Association ◽  
Distribution Patterns ◽  
Research Area ◽  
Negative Association ◽  
Line Transect ◽  
Thalassia Hemprichii ◽  
Marine Life ◽  
Cymodocea Rotundata

AbstrakLamun (Seagrass) merupakan salah satu ekosistem penting diwilayah pesisir yangberperan penting baik secara ekologis dan ekonomis. Keberadaan lamun mendukungkehidupan berbagai jenis biota laut. Penelitian ini bertujuan mengidentifikasi jenis-jenislamun yang berada di perairan pantai Rua, Mengetahui kepadatan, pola sebaran,keanekaragaman jenis, dan dominansi serta asosiasi antara spesies. Penelitian ini dilakukandengan metode garis transek dan kuadrat. Hasil penelitian menunjukkan bahwa terdapat 4jenis lamun di perairan pantai Rua yang terdiri dari Cymodocea rotundata, Enhalusacoroides, Halodule pinifolia dan Thalassia hemprichii. T. hemprichii adalah jenis dengankepadatan tertinggi di perairan Rua yaitu 16,70 ind/m2, serta E. acoroides, memilikikepadatan terendah yakni 5,77 ind/m2. Jenis lamun yang ditemukan di lokasi penelitianseluruhnya memiliki pola sebaran mengelompok dengan keanekaragaman yangdikategorikan rendah yaitu sebesar 1,32, serta indeks dominasi sebesar 0,27. Tipe asosiasilamun di lokasi penelitian yaitu asosiasi positif (+), serta asosiasi negatif (-).Kata Kunci. Struktur Komunitas, Asosiasi, lamun.AbstractSeagrass is a important ecosystems coastal region that is important both ecologically andeconomically . The seagrass supports of various marine life. This study to propose identify thespecies of seagrasses in coastal waters in Rua, Knowing the density, distribution pattern,species diversity, and dominance as well as associations between species. This study wasconducted using line transect and kuadrats. The results showed that there are 4 species ofseagrass in Rua consisting of Cymodocea rotundata , Enhalus acoroides , pinifolia Haloduleand Thalassia hemprichii . T. hemprichii is highest density (16.70 ind/m2), and E. acoroides ,which has the lowest density (5.77 ind/m2). Species seagrass found in the research area allhave clumped distribution patterns are categorized with diversity low at 1.32 , and dominanceindex at 0.27. Type association of seagrass in the location studies is positive association ( + )and negative association ( - ).Key Words:community structur, association, seagrass

scholarly journals Community Structure of Seagrass Meadows In Mantehage Island Waters, North Sulawesi

2014 ◽  
Vol 1 (4) ◽  
pp. 177
Author(s):  
Simon I Patty ◽  
Husen Rifai
Keyword(s):  
Diversity Index ◽  
Seagrass Species ◽  
Thalassia Hemprichii ◽  
Seagrass Meadows ◽  
North Sulawesi ◽  
Halophila Ovalis ◽  
Cymodocea Rotundata ◽  
Syringodium Isoetifolium ◽  
Species Composition And Distribution ◽  
Thalassodendron Ciliatum

Research on the structure of seagrass communities in the waters of the island Mantehage was conducted in September 2010. The purpose of this study is to collect data and information on the structure of seagrass communities. Observations includes the identification seagrass species, measuring the number of individual/stand, cover percentage of each type/species on the transect. 6 types of seagrass found, i.e. Enhalus acoroides, Halophila ovalis, Thalassia hemprichii, Thalassodendron ciliatum, Cymodocea rotundata and Syringodium isoetifolium. Seagrass species composition and distribution varies at each location and is dominated by the presence of Thalassia hemprichii (48.14%) with coverage percentage ranges between 15.91% to 35.11%. Diversity index values ranged from 0.79 to 1.69 ; evenness index between 0.57 to 0.94 and the index of dominance between 0.20 to 0.56. In conclusion, the condition of seagrass meadows in Mantehage island is relatively good and can support marine life adequately.Keywords : Structure communities, seagrass, Mantehage Island

scholarly journals KAJIAN KOMUNITAS EKOSISTEM LAMUN DI SEMENANJUNG TARABITAN KECAMATAN LIKUPANG BARAT KABUPATEN MINAHASA UTARA

2021 ◽  
Vol 9 (2) ◽  
pp. 24
Author(s):  
Risandi D Sitaba ◽  
Carolus P Paruntu ◽  
Billy Theodorus Wagey
Keyword(s):  
Species Composition ◽  
Percent Cover ◽  
Seagrass Beds ◽  
Seagrass Species ◽  
Thalassia Hemprichii ◽  
Enhalus Acoroides ◽  
Halophila Ovalis ◽  
Halodule Uninervis ◽  
Cymodocea Rotundata ◽  
Syringodium Isoetifolium

This research was conducted in the waters of Tarabitan Peninsula, West Likupang North Minahasa using quadants transect method. The purpose of this study was to determine the community structure of seagrass found in that waters as initial information for sustainable management seagrass ecosystem . Field observation was conducted to identify the seagrass species, number of individuals/shoots, percent cover for each type of seagrass in those plotting quadrants. The result of this study documented 6 types of seagrass namely, Enhalus acoroides, Thalassia hemprichii, Cymodocea rotundata, Syringodium isoetifolium, Halophila ovalis and Halodule uninervis. The species composition and distribution of seagrass were varied and was dominated by Thalassia hemprichii was the most dominant seagrass species with a relative density of 55.55%, a relative frequency of 33.67%, 39.92% relative cover, an important value index of 129.03%, a diversity index of 1.30 belonging to this condition, moderate, the uniformity index of 0.72 is classified as high and the dominance index of 0.2 is classified as low. Based on Minister of Environment Decree Republic Indonesia No. 200 of 2004 concerning the status of seagrass beds, the condition of the seagrass beds in the waters of Tarabitan Village is classified as rich / healthy with a cover value of ≥ 60. Keywords : Seagrass Community, Species Composition,  distribution, Tarabitan Peninsula           Penelitian ini dilakukan di perairan Semenanjung Tarabitan Likupang Barat Minahasa Utara dengan menggunakan metode transek kuadran. Tujuan penelitian ini adalah untuk mengetahui struktur komunitas lamun yang terdapat di perairan tersebut sebagai informasi awal untuk pengelolaan lamun secara berkelanjutan. Pengamatan lapangan dilakukan untuk mengidentifikasi jenis lamun, jumlah individu/tegakan, persentase tutupan tiap jenis lamun pada tiap kuadran. Hasil penelitian ini mendokumentasikan 6 jenis lamun yaitu Enhalus acoroides, Thalassia hemprichii, Cymodocea rotundata, Syringodium isoetifolium, Halophila ovalis dan Halodule uninervis. Komposisi jenis dan sebaran lamun bervariasi dan didominasi oleh jenis lamun Thalassia hemprichii merupakan jenis lamun yang paling dominan dengan kerapatan relatif 55,55%, frekuensi relatif 33,67%, tutupan relatif 39,92%, indeks nilai penting 129,03%, indeks keanekaragaman 1,30 tergolong dalam kondisi sedang, indeks keseragaman 0,72 tergolong tinggi dan indeks dominansi 0,2 tergolong rendah. Berdasarkan Keputusan Menteri Lingkungan Hidup Nomor 200 Tahun 2004, kondisi padang lamun di perairan Desa Tarabitan tergolong kaya / sehat dengan nilai tutupan ≥ 60.Kata Kunci: Komunitas Lamun, Komposisi Jenis, Distribusi, Semenanjung Tarabitan

scholarly journals Asosiasi gastropoda di ekosistem padang lamun Perairan Senggarang Besar, Kepulauan Riau, Indonesia

2020 ◽  
Vol 4 (2) ◽  
pp. 53
Author(s):  
Fajeri Fajeri ◽  
Febrianti Lestari ◽  
Susiana Susiana
Keyword(s):  
Random Sampling ◽  
Sampling Method ◽  
Positive Association ◽  
Total Density ◽  
Seagrass Species ◽  
Thalassia Hemprichii ◽  
Seagrass Ecosystem ◽  
Density Values ◽  
Halodule Uninervis ◽  
Syringodium Isoetifolium

This study aims to determine the type and density of gastropods, the density of seagrass, seagrass closure. It also knows the association gastropods in seagrass ecosystem in the waters of the Senggarang Besar. The research was conducted by random sampling method using a point 31 transect squares measuring 1x1 meters for observation gastropods and seagrass. Results of the study were found 12 species of gastropods. Gastropod density values range between 0.35-2.94 individual/m2. Results of research on the type of seagrass found 4 species of seagrass that is, Enhalus acoroides, Thalassia hemprichii, Halodule uninervis and Syringodium isoetifolium. A density value of seagrass species Enhalus acoides 14.32 individual/m2, Thalassia hemprichii 86.39 individual/m2, Halodule uninervis 21.58 individual/m2 and Syringodium isoetifolium 3.87 individual/m2. Total density of all seagrass 126.16 individual/m2. The closure of the Seagrass Enhalus acoides 12,63%, Thalassia hemprichii 50,96%, Halodule unnerves 13,40%  and Syringodium isotifolium 0.29%. Total closure of all seagrass is 77,29%. The level of association between species of gastropods as many as 11 species have negative associations of which is Leavistrombus turturela, Strombus urceus, Planaxis sulcatus, Cerithium nesioticum, Cerithium Aluco, Cerithium zonatum, Pugilina cocholidium, Cronia margariticola, Muricodrupa fiscela, Pyrene epamella, Otopleura auriscati. While 1 species has a positive association level is kind of Rhinoclavis aspera.

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 Relationship of Distribution Seagrass Species with Dugong (Dugong dugon) Sighting at Liki Island-Papua

Omni-Akuatika ◽  
2019 ◽  
Vol 15 (2) ◽  
pp. 92
Author(s):  
Aditya Hikmat Nugraha ◽  
Ilham Antariksa Tasabaramo ◽  
Udhi E Hernawan ◽  
Susi Rahmawati ◽  
Andri Irawan ◽  
...  
Keyword(s):  
Line Transect ◽  
Seagrass Species ◽  
Thalassia Hemprichii ◽  
Halophila Ovalis ◽  
Seagrass Ecosystem ◽  
Island Station ◽  
Halodule Uninervis ◽  
Cymodocea Rotundata ◽  
Syringodium Isoetifolium ◽  
Relationship Of

Dugong dugon is a herbivorous marine mammal. One of Dugong's favorite foods is seagrass. This study examines the distribution of seagrass species to dugong sighting in Liki Island. The study was conducted in November 2018. Observation of seagrass conditions was carried out using a line transect method and a 50x50 cm transect with a distance interval between 10 m plots. Interviews were also conducted with the community to find out the location of Dugong presence in Liki Island. There are seven species of seagrass found in Liki Island :Enhalus acoroides, Cymodocea rotundata, Thalassia hemprichii, Halophila ovalis, Halodule uninervis, Halodule pnifolia and Syringodium isoetifolium spread over four observation stations. The results showed that  Dugong in Liki Island is often found during the eastern season, they often appear in seagrass ecosystem area to do eating activities. Dugong is often found in the eastern part of Liki Island (Station 4) and sometimes also found in the western part of Liki Island (Station 3).Keywords:biodiversity,Dugong dugon, liki, papua, seagrass

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