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 KOMUNITAS LAMUN DI PERAIRAN PANTAI DESA ORI, MALUKU TENGAH

2021 ◽  
Vol 17 (2) ◽  
pp. 97-103
Author(s):  
Sarah Haumahu ◽  
Frijona F Lokollo ◽  
Reni Ambon
Keyword(s):  
Coastal Waters ◽  
Line Transect ◽  
Seagrass Species ◽  
Thalassia Hemprichii ◽  
Enhalus Acoroides ◽  
Seagrass Community ◽  
Halophila Ovalis ◽  
The World ◽  
Cymodocea Rotundata ◽  
Frequency Of Occurence

Seagrass communities play an important role in marine environments and estuary area, supporting communities of fish, snails and shellfish and other invertebrates. The diversity of seagrass species in the world is very low (<60 species). The coastal waters of Ori Village have a seagrass community that has never been studied. The purpose of this study was to estimate the structure of the seagrass community in the coastal waters of Ori Village, Central Maluku which includes the composition of type, density, frequency of occurence and percent of coverage. Seagrass sampling uses the line transect method. Five species of seagrass were found during the study grouped into two families: Cymodoceaceae and Hydrocharitaceae. The seagrass species found were Cymodocea rotundata, Halodule pinifolia, Enhalus acoroides Halophila ovalis and Thalassia hemprichii. T. hemprichii and E. acoroides have the highest densities (157 shoots/m2 and 137 shoots/m2, respectively). E. acoroides and T. hemprichii also have the highest frequency of occurence and relative coverage percent compared to other seagrass species found in the waters of Ori Village. Seagrass community in the waters of Ori Village is classified in a tight condition until dense.   ABSTRAK Komunitas lamun memegang peranan penting di lingkungan laut dan daerah estuari, menyokong komunitas ikan, siput dan kerang-kerangan serta invertebrata lainnya. Keragaman spesies lamun di dunia sangat rendah (<60 spesies). Perairan pantai Desa Ori memiliki komunitas lamun yang belum pernah diteliti. Tujuan dari penelitian ini adalah untuk mengestimasi struktur komunitas lamun di perairan pantai Desa Ori, Maluku Tengah yang meliputi komposisi jenis, kerapatan, frekuensi kehadiran dan persen penutupan. Pengambilan sampel lamun menggunakan metode transek garis. Lima spesies lamun ditemukan selama penelitian yang dikelompokan dalam dua famili yaitu famili Cymodoceaceae dan Hydrocharitaceae. Spesies-spesies lamun yang ditemukan adalah Cymodocea rotundata, Halodule pinifolia, Enhalus acoroides Halophila ovalis danThalassia hemprichii. T. hemprichii dan E. acoroides memiliki kerapatan tertinggi (masing-masing 157 tegakan/m2 dan 137 tegakan/m2). E. acoroides dan T. hemprichii juga memiliki frekuensi kehadiran serta persen penutupan relatif tertinggi dibanding spesies-spesies lamun lainnya yang ditemukan di perairan Desa Ori. Komunitas lamun di perairan Desa Ori tergolong dalam kondisi rapat sampai padat.   Kata Kunci: Lamun, komunitas, kerapatan, penutupan, Maluku Tengah      

scholarly journals STRUKTUR DAN ASOSIASI JENIS LAMUN DI PERAIRAN PULAU-PULAU HIRI, TERNATE, MAITARA DAN TIDORE, MALUKU UTARA

2018 ◽  
Vol 10 (3) ◽  
pp. 651-665 ◽  
Author(s):  
Yunita Ramili ◽  
Dietriech G. Bengen ◽  
Hawis Madduppa ◽  
Mujizat Kawaroe
Keyword(s):  
Coastal Region ◽  
Line Transect ◽  
Small Islands ◽  
Seagrass Species ◽  
Thalassia Hemprichii ◽  
Enhalus Acoroides ◽  
Halophila Ovalis ◽  
Cymodocea Rotundata ◽  
Syringodium Isoetifolium ◽  
Distribution Composition

ABSTRAKKeberadaan ekosistem lamun di perairan pesisir pulau-pulau kecil berperan penting sebagai habitat dan penyedia sumber daya ikan, serta pelindung garis pantai dan daratan pulau-pulau kecil tersebut. Penelitian ini bertujuan untuk menganalisis sebaran, komposisi, kerapatan, penutupan dan asosiasi jenis lamun di perairan pulau-pulau kecil Hiri, Ternate, Maitara dan Tidore, Maluku Utara. Pengambilan data dengan menggunakan metode transek garis dan transek kuadrat. Selanjutnya data dianalisis dengan menggunakan bantuan perangkat lunak MS Excel dan XLstat. Hasil penelitian menunjukkan bahwa Pulau Tidore memiliki jumlah jenis lamun terbanyak yakni delapan jenis lamun dari sembilan jenis lamun yang ditemukan di seluruh lokasi penelitian. Tiga jenis lamun yaitu, Enhalus acoroides, Thalassia hemprichii dan Cymodocea rotundata, menyebar luas dan terdapat di keempat pulau tersebut. Komposisi, kerapatan dan penutupan jenis lamun bervariasi antar stasiun penelitian. Vegetasi lamun yang ditemukan di lokasi penelitian berupa vegetasi campuran yang terdiri dari tiga sampai delapan jenis lamun. E. acoroides banyak ditemukan di Stasiun Mtr1 dan Tte2 tidak berasosiasi dengan spesies lainnya, demikian juga dengan C. serrulata yang ditemukan di Stasiun Mtr2 dan T. hemprichii di Stasiun Tdr2 dan Tdr3. Asosiasi C. rotundata dan Syiringodium isoetifolium terlihat di stasiun Tdr1 dan Hr1, sementara Halophila ovalis dan H. spinulosa  tidak menunjukkan asosiasi dengan jenis lamun lainnya di lokasi penelitian. Secara keseluruhan kondisi lingkungan perairan di keempat pulau tersebut masih tergolong baik dan mampu mendukung ekosistem lamun. ABSTRACTThe existence of seagrass ecosystems in the coastal region of small islands has been playing an essential role as a habitat and the supplier of fish resources, as well as a shore and coastline protector of small islands. This study aimed to  determine the distribution, composition, density, coverage, and associations of seagrass plant in the islands of Hiri, Ternate, Maitara, and Tidore. Data were collected by using line transect method and quadrate transect. Furthermore, data were analyzed by using MS Excel and XLstat software. The results showed that Tidore Island has the highest number of seagrass species namely eight from nine species of seagrasses found in all research sites. Three species of seagrasses, Enhalus acoroides, Thalassia hemprichii, and Cymodocea rotundata, were widespread in all four islands. The composition, density and coverage of seagrass species varied among research stations. Vegetation of seagrasses found in the study site in the form of mixed vegetation consisting of three to eight species. Enhalus acoroides found mostly in Mtr1 and Tte2 stations were not associated with other seagrass species, nor Cymodocea serrulata that found in Mtr2 Station and T. hemprichii at Tdr2 and Tdr3 stations. The associations of C. rotundata and Syringodium isoetifolium were observed at Tdr1 and Hr1 Stations. While Halophila ovalis and Halophila spinulosa showed no association with other seagrass species at the study area. Overall the condition of the marine environment on the four islands is still relatively good and able to support the life of the seagrass ecosystem.

scholarly journals Community Structure of Seagrass in Coastal Waters of Bahoi Village, West Likupang Sub-district, North Minahasa Regency, North Sulawesi Province

2016 ◽  
Vol 3 (2) ◽  
pp. 63
Author(s):  
Kurnia Tolule ◽  
Alex D. Kambey ◽  
Ari B. Rondonuwu
Keyword(s):  
Structure Analysis ◽  
Coastal Waters ◽  
Diversity Index ◽  
Line Transect ◽  
Thalassia Hemprichii ◽  
Enhalus Acoroides ◽  
North Sulawesi ◽  
Halophila Ovalis ◽  
Cymodocea Rotundata ◽  
Syringodium Isoetifolium

This study was aimed at revealing the structure of seagrass community in the coastal waters of Bahoi Village, West Likupang Sub-district, District of North Minahasa, North Sulawesi Province. Samples collection was conducted during the lowest tide period by deploying line transect and quadrate. Eight species of seagrasses were identified on this study, including species as follow: Enhalus acoroides, Thalassia hempricihii, Cymodocea rotundata, C. serrulata, Syringodium isoetifolium, Hlodule pinifolia, H. uninervis and Halophila ovalis. The highest density value ( 112.16 individual/m2) was calculated from transect III data on S. isoetifolium species. In term of relative density value, S. isoetifolium also has the highest value (35.176 %). Index dominance (C) was calculated as well from transect III data (0.477) while the highest diversity index  (H’) was calculated from transect I data (1.724). Keyword : structure, Analysis, seagrass ABSTRAK Penelitian ini bertujuan mengkaji struktur komunitas lamun di perairan pantai Desa Bahoi Kecamatan Likupang Barat Sulawesi Utara.Pengambilan sampel  dilaksanakan sekali pada saat surut terendah, data dikumpulkan berdasarkan garis transek dan kuadrat. Jenis lamun yang ditemukan dalam keseluruhan kuadrat di lokasi penelitian berjumlah 8 spesies yaitu : Enhalus acoroides, Thalassia hemprichii, Cymodocea rotundata, Cymodocea serrulata, Syringodium isoetifolium, Halodule pinifolia, Halodule uninervis, dan Halophila ovalis. Kepadatan individu tertinggi terdapat pada transek III yaitu spesies Syringodium isoetifolium 112,16 ind/m2. Kepadatan relatif tertinggi terdapat pada spesies Syringodium isoetifolium (35,176 %). Indeks dominasi (C) yang tertinggi terdapat pada transek III 0.477 indeks keanekaragaman spesies (H’) yang tertinggi pada transek I 1.724. Keyword : structure, Analysis, seagrass 1Mahasiswa Program Studi MSP FPIK-UNSRAT 2Staf pengajar Fakultas Perikanan dan Ilmu Kelautan Universitas Sam Ratulangi

Biogeography of the tropical seagrasses in the western Pacific

1993 ◽  
Vol 44 (1) ◽  
pp. 1 ◽  
Author(s):  
H Mukai
Keyword(s):  
Coastal Waters ◽  
Distribution Patterns ◽  
Western Pacific ◽  
Seagrass Species ◽  
Thalassia Hemprichii ◽  
Centre Of Origin ◽  
Present Distribution ◽  
Cymodocea Rotundata ◽  
Syringodium Isoetifolium ◽  
The Western Pacific

Seagrass species and their distributions were recorded from 18 localities in the tropical and subtropical Pacific. These field observations were collated with a review of the recent literature, enabling the present distribution patterns of seagrass species in the western Pacific to be described and the origin of those species to be discussed in relation to the major oceanic currents of the region. The major tropical seagrasses of the western Pacific are Thalassia hemprichii, Enhalus acoroides, Cymodocea rotundata, C. serrulata, Halodule uninervis, Syringodium isoetifolium and Thalassodendron ciliatum, with T. hemprichii and E. acoroides being the two most widely distributed species. Species are found in coastal waters along the Equatorial Countercurrent and the Kuroshio and East Australian Currents. The highest number of seagrass species occurs in the coastal waters of Malesia enclosed by Indonesia, Borneo, Papua New Guinea and the Torres Strait (northern Australia). This area is considered to be the source of all of the seagrass species of the western Pacific, i.e. the centre of their origin. A relationship between the distance from this centre of origin along the above three major ocean currents and the diversity of seagrass species was found: the further from the origin, the poorer the seagrass diversity. These observations support the centre-of-origin theory that was first proposed by den Hartog to describe the processes responsible for the present distribution patterns of seagrasses in the western Pacific.

Perbandingan Perifiton pada Thalassia hemprichii dan Cymodocea rotundata di Perairan Teluk Awur, Jepara

2021 ◽  
Vol 10 (2) ◽  
pp. 225-232
Author(s):  
Chandra Nicolas Sihaloho ◽  
Nur Taufiq ◽  
Hadi Endrawati
Keyword(s):  
Sampling Method ◽  
Distribution Patterns ◽  
Survey Method ◽  
Line Transect ◽  
Sweep Method ◽  
Thalassia Hemprichii ◽  
Cymodocea Rotundata ◽  
Total Observation ◽  
Morisita Index ◽  
Seagrass Density

Keanekaragaman jenis lamun dan struktur morfologi yang cukup besar pada Thalassia hemprchii dan Cymodocea rotundata memungkinkan ditumbuhi perifiton yang dapat meningkatkan produktivitas primer. Penelitian ini bertujuan untuk mengetahui kelimpahan perifiton pada T. hemprichii dan C. rotundata di Perairan Teluk Awur, Jepara. Penelitian dilaksanakan pada Bulan Juli 2020 menggunakan metode survei dan penentuan lokasi dipilih dengan menggunakan metode purposive random sampling, sedangkan metode pengambilan data lamun dengan metode line transect quadrant yang mengacu pada metode LIPI. Pengambilan daun lamun untuk pengamatan perifiton menggunakan metode sapuan daun yang selanjutnya diamati dengan menggunakan metode sensus yaitu pengamatan total dengan alat sedgwick rafter di bawah mikroskop. Nilai kelimpahan perifiton pada daun lamun T. hemprichii sebesar 27.635 ind/cm2. Sedangkan kelimpahan perifiton pada daun lamun C. rotundata sebesar 23.015 ind/cm2. Kelimpahan tertinggi perifiton terdapat pada jenis lamun Thalassia hemprichii, hal ini diduga karena Thalassia hemprichii mempunyai penampang daun yang lebih lebar. Perifiton yang mendominasi di Perairan Teluk Awur berasal dari Kelas Bacillariophyceae, diduga karena kelas ini memiliki kemampuan melekat pada substrat yang baik. Berdasarkan perhitungan Indeks Morisita maka diketahui bahwa sebaran perifiton di Perairan Teluk Awur didominasi pola sebaran mengelompok. Kelimpahan perifiton dengan kerapatan lamun di Perairan Teluk Awur memiliki hubungan cukup erat.The considerable diversity of seagrass species and morphological structures in Thalassia hemprchii and Cymodocea rotundata allows the growth of periphyton which can increase primary productivity. This study aims to determine the abundance of periphyton and its distribution patterns in the waters of Teluk Awur, Jepara. The study, which was conducted in July 2020, used a survey method and the location was selected using the purposive sampling method, while the seagrass data collection method used the line transect quadrant method which refers to the LIPI method. Seagrass leaves were collected for periphyton observations using the leaf sweep method, which was observed using the census method, namely total observation using the sedgwick rafter under a microscope. The abundance value of periphyton in Thalassia hemprichii seagrass leaves was 27,635 ind/cm2. While the abundance of periphyton in seagrass leaves of Cymodocea rotundata was 23,015 ind/cm2. The highest abundance of periphyton is found in the type of seagrass T. hemprichii, this is presumably because T. hemprichii has a wider leaf cross section. The dominant periphyton in Teluk Awur waters comes from the Bacillariophyceae class, presumably because this class has good adherence to the substrate. Based on the calculation of the Morisita Index, it is known that the distribution of periphyton in the waters of Teluk Awur, Jepara is dominated by a clustered distribution pattern. The abundance of periphyton and seagrass density on Parang Island is closely related.

Kestabilan Habitat Lamun Ditinjau Dari Komposisi dan Kepadatan Jenis

2012 ◽  
Vol 8 (1) ◽  
Author(s):  
Paskalina Th. Lefaan
Keyword(s):  
Line Transect ◽  
Seagrass Habitat ◽  
Pioneer Species ◽  
Thalassia Hemprichii ◽  
Climax Species ◽  
Halophila Ovalis ◽  
Cymodocea Rotundata ◽  
Syringodium Isoetifolium ◽  
Cymodocea Serrulata ◽  
Stable Habitat

<em>Seagrasses habitats have both physical and ecological functions that support adjacent waters qualities and its dwelling organisms. There are varies of pressure on seagrass environmental, especially due to people activities that could decrease its function and habitat stabilities. The study aimed to determine about seagrass habitat stabilities from its species composition and/or densities. Line transect-plots and exploration methods were used in five locations of Manokwari coastal waters, that were, Andai, Rendani, Wosi, Briosi, and Tanjung Manggewa. There are five pioneer species (Cymodocea rotundata, Halodule pinifolia, H. uninervis, Syringodium isoetifolium, Halophila ovalis) and 3 climax species (Cymodocea serrulata, Enhalus acoroides, Thalassia hemprichii). The pioneer only found in Andai and Wosi, however both pioneer and climax encountered in three other locations. In Rendani and Tanjung Manggewa higher density of climax species (T. hemprichii) were 617.7 and 828.0 stands m-2, respectively, although in Briosi the higher pioneer (C. rotundata) of 570.7 stands m-2. These conditions showed that seagrass habitat in Rendani and Tanjung Manggewa are more stable compared to Briosi, as well as Andai and Wosi. It concluded that pioneer species found in newly formed habitat or disturbed, on the other hand, climax in more stable habitat.</em>

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 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.

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

scholarly journals ASOSIASI GASTROPODA DENGAN TUMBUHAN LAMUN DI PERAIRAN PANTAI NEGERI TIOUW KECAMATAN SAPARUA KABUPATEN MALUKU TENGAH

2019 ◽  
Vol 4 (2) ◽  
pp. 109-116 ◽  
Author(s):  
Anggi Wawan Batuwael ◽  
Dominggus Rumahlatu
Keyword(s):  
Coastal Waters ◽  
High Salinity ◽  
Descriptive Study ◽  
Flowering Plants ◽  
Seagrass Beds ◽  
Thalassia Hemprichii ◽  
Tropical Regions ◽  
Halophila Ovalis ◽  
Weak Association ◽  
Cymodocea Rotundata

Background: Seagrasses are flowering plants (Angiosperms) that are able to adapt fully in waters with high salinity or live immersed in water. Seagrass has true rhizomes, leaves and roots like plants on land. Seagrasses usually form fields called seagrass beds, especially in tropical and sub-tropical regions. The existence of seagrasses is known to support fishing activities, shellfish communities and other invertebrate biota. Method: This study is a descriptive study to reveal information about environmental characteristics, and associations of seagrasses with gastropods. Results: The study found a class of gastropods, 10 species namely Strombus variabilis, Strombus microurceus, Nassariusl uridus, Nassarius dorsatus, Strombus urceus, Cypraea annulus, Strombus labiatus, Strombus marginatus, Neritas quamulata, Cypraeratigris. Of the seagrass plants found 4 species, namely Enhalus acoroides, Thalassia hemprichii, Halophila ovalis, Cymodocea rotundata. Association values ​​ranged from 4.159-8.85 with positive and negative types. This means that both types of seagrass are often found together or not found together in each observation box. Conclusion: There is a weak association between seagrass and gastropods in the coastal waters of Tiouw State. The association of gastropod types with seagrass species is found in 10 types of gastropods and 4 types of seagrasses in the waters of the Tiouw State coast

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