37 research outputs found
HASIL TANGKAPAN IKAN TARGET DAN NON TARGET YANG TERTANGKAP DENGAN GILL NET DI MUARA SAMPAI KAWASAN GUDANG ARANG SUNGAI MARO KABUPATEN MERAUKE
Get PDFPenelitian ini bertujuan untuk mengetahui jenis ikan target dan ikan non-target serta untuk mengetahui komposisi spesies, kelimpahan relatif, indeks keanekaragaman dan indeks dominansi yang ditangkap di Muara ke Area Gudang Arang di Sungai Maro, Kabupaten Merauke. Teknik pengambilan data dilakukan dengan menggunakan metode Purposive Random Sampling. Untuk mengetahui keberadaan spesies, dilakukan studi komposisi spesies ikan, kelimpahan relatif, indeks keanekaragaman dan indeks dominansi. Hasil penelitian menunjukkan bahwa tangkapan ikan target adalah 11 spesies dan non-target sebanyak 6 spesies. Kelimpahan hasil tangkapan relatif pada ikan target tertinggi diperoleh pada ikan Bawal putih (Rhinoprenes Pentanemus) dengan nilai 54,47% sedangkan ikan non-target tertinggi berada di White Baung (Cinetodus crassilabri) dengan nilai 82,75%. Indeks keanekaragaman tangkapan spesies ikan target adalah 1,41 sehingga dikategorikan sebagai keanekaragaman sedang, dalam spesies non-target adalah 0,73 dan rendah. Tidak ada jenis yang mendominasi tangkapan, baik ikan target maupun ikan non-target
KORELASI SEBARAN GASTROPODA DAN BAHAN ORGANIK DASAR PADA EKOSISTEM MANGROVE DI PERAIRAN PANTAI PAYUM, MERAUKE
Get PDFCoastal area of Payum as an area of mangrove forest located at western of Merauke Regency. Known as area which produce a high amount of organic matters, whether comes from mangrove area itself, stream or even by sea currents. There is much living organism associated with mangrove one of them is gastropods. Sample was collected using transect quadrant methods. The quadrant size are 5 x 5 m and the gastropods were collect as well as the sediment and sea water to measure the organic matter content. At that time the environments parameters also collected they are temperature, salinity and pH. The research result are we’re successful identify 13 species of gastropods, there is Cassidula angulifera, Littoraria scabra, Terebralia sulcata, Cerithidea obtusa, Nerita violacea, Thais rufotincta, Turritella terebra, Glossaulax bicolor, Nassarius micans, Natica lineata, Nerita lineata, Mitra sp., Telescopium telescopium. Furthermore, the sediment analysis shown there are strong correlation (60%) with the existence of gastropods, reverse with sea water analysis having weak correlation which is just have 10% of correlation value. Moreover, the density and frequency relatives of gastropod species in every stasiun dominate by Littorina scabra
Pendekatan DNA Barcoding untuk Identifikasi Cassidula angulifera (Petit, 1841) (Moluska: Gastropoda)
Get PDFA large number of gastropod species have similarities in morphology (cryptic) makes misidentification probably happen/occurred. Accurate species identification is needed in studying bioecology of species. This research aims to identify the species of Cassidulla sp. Which was collected from Peyum Beach Merauke with DNA barcoding techniques using COI gene markers. The primers used in this study are forward primers (LCO1490) and reverse primers (HCO2198). The result of identification with DNA barcoding showed that the species analyzed was Cassidula angulifera with a 99.53% similarity level with a DNA sequence length of 650 bp. Phylogenetic reconstruction showing the entire sequence of Cassidula sp. which were analyzed separately based on the type and genetic distance with high bootstrap value. Phylogenetic reconstruction of Cassidula sp. form a monophyletic group, which means that the species come from the same ancestors. DNA barcoding is very good and accurate in identifying species.Banyaknya spesies gastropoda yang memiliki kemiripan morfologi (cryptic) membuat kesalahan identifikasi sangat mungkin terjadi. Identifikasi spesies yang akurat sangat diperlukan dalam mempelajari bioekologi spesies. Penelitian ini bertujuan untuk mengidentifikasi spesies Cassidula sp. yang dikoleksi dari Pantai Payum Merauke dengan teknik DNA barcoding menggunakan marka gen COI. Primer yang digunakan dalam penelitian ini adalah primer forward (LCO1490) dan primer reverse (HCO2198). Hasil identifikasi dengan DNA barcoding, spesies yang dianalisis adalah Cassidula angulifera dengan tingkat kemiripan 99.53 % dengan panjang sekuen DNA 650 bp. Rekonstruksi filogenetik memperlihatkan seluruh sekuen Cassidula sp. yang dianalisis terpisah berdasarkan jenis dan jarak genetik dengan nilai boostrap yang tinggi. Rekonstruksi filogenetik Cassidula sp. membentuk kelompok monofiletik yang berarti spesies tersebut berasal dari tetua yang sama. DNA barcoding sangat baik dan akurat dalam mengidentifikasi spesies
Molecular Phylogenetic of Cerithidea anticipata (Iredale, 1929) (Mollusk: Gastropod)
Get PDFSpecies identification is very important and an important part of bioecological studies, so phylogenetic studies of Cerithidea anticipata (Iredale, 1929) was conducted in September 2020 to identify C. anticipata (Iredale, 1929) based on DNA barcoding techniques. Samples of C. anticipata (Iredale, 1929) were collected from the mangrove ecosystem of Payum Merauke Beach Papua (Indonesia), where the genes used were primary COI Gene forward LCO1490 and reverse HCO2198. The result of DNA amplification obtained DNA sequence length of 660 bp, then based on the identification of Basic Local Alignment Search Tools (BLAST) obtained a similarity level of 98.42% and phylogenetic reconstruction showed the existence of grouping based on the degree of similarity and genetic distance between populations.Keywords: Cerithidea anticipata; COI genes; DNA barcoding; phylogeneticsAbstrakIdentifikasi spesies sangat penting dilakukan dan menjadi bagian penting dalam studi bioekologi, sehingga kajian filogenetik Cerithidea anticipata (Iredale, 1929) telah dilakukan pada bulan September 2020 dengan tujuan untuk mengidentifikasi C. anticipata (Iredale, 1929) berdasarkan teknik DNA barcoding. Sampel C. anticipata (Iredale, 1929) dikoleksi dari ekosistem mangrove Pantai Payum Merauke Papua (Indonesia), dimana gen yang digunakan adalah Gen COI primer forward LCO1490 dan reverse HCO2198. Hasil dari amplifikasi DNA diperoleh panjang sekuen DNA 660 bp, kemudian berdasarkan identifikasi Basic Local Alignment Search Tools (BLAST) diperoleh tingkat kemiripannya 98.42% dan rekonstruksi filogenetiknya memperlihatkan adanya pengelompokan berdasarkan tingkat kemiripan maupun jarak genetik antar populasi.Kata kunci: Cerithidea anticipata; Gen COI; DNA barcoding; filogeneti
Studi Kelimpahan, Hubungan Panjang Berat, Pola Sebaran dan Faktor Kondisi L. intermedia (Gastropoda)
Get PDFLittorinidae is family of gastropods which found abundantly distributed from roots till the edge of mangroves leafs. The aims of research were to find out the abundance, length-weight relationship, distribution patterns and conditions factors of Littorina intermedia which is associated with mangrove ecosystems in Payum beach. This study conducted in three months start in June until August 2020 in the Mangrove Forest Ecosystem of Payum Merauke Beach. Line transect methods with purposive sampling are using to collected all the samples. There are three stations in this location. The results found in Stasion I tnd., respectively.   Both length and weight in the three stations separated into 4 categorize. The higest categories in St. I and St. II belong to category length between 0,96-1,70 cm approximately 638 ind and 84 ind. Reverse with that in St. III belong to category III (1,71-2,45 cm) with 15 ind. Furthermore, for weight analysis dominate with category I with 0,00-0,59 gram which is found in all station.  For lenght and weight analysis using Regreation showed Allometric Negative where the growth of length is faster than body weight. Morever the distribution pattern in all sampling site showed in clumped pattern. The condition factor of species L. intermedia, ranges from 0.31 to 26.45 with an average of 1.15. Key Words: Merauke; Weight-Length Relationship; Distribution; Gastropod; Littorin
Korelasi Sebaran Gastropoda dan Bahan Organik Dasar pada Ekosistem Mangrove di Perairan Pantai Payum, Merauke
Get PDFCharacter Education Based Local Wisdom Si Tou Timou Tumou Tou Through Informal Education in the City of Manado
No full textIDENTIFIKASI JENIS DAN KELIMPAHAN MOLUSKA YANG DIMANFAATKAN SEBAGAI BAHAN PANGAN PADA EKOSISTEM HUTAN MANGROVE, MERAUKE
Get PDFMollusc as one of protein sources beside fish and shrimp in contribute to fulfill whether consumption and nutrition of community in coastal area on Merauke regency. This research conducted at mangrove forest ecosystem in Payum beach start on February-April 2020. Moreover, mollusc shell also functioned as decoration, accessories, and powder to sirih pinang activity namely “kahos”, whilst mollusk meat being cooked. The aims of this research were to identified and analyzed the spesies composition and abundance of consumed mollucs by a local community. The research methods consist of interview and purposive sampling method with 10x10 m plots, also followed by three times repetition in three stations. The result shows there are 9 species of consumed mollucs as a food resource such as Cassidula angulifera, Ellobium aurisjudae, Telescopium telescopium, Terebralia palustris, Terebralia semistriata, Cerithidea anticipata, Nerita lineata, Stramonita gradata and Onchidium daemelii. Overall, the highest composition and relative abundance of mollusc at Station I, II and III belongs to Cerithidea anticipata with total approximately 4.609 ind and relative abundance 46.77%, otherwise Ellobium aurisjudae with total 18 ind and relative abundance 0.18% became the lowest.
ABSTRAK
Moluska sebagai salah satu sumber protein selain ikan dan udang turut menunjang pemenuhan kebutuhan baik konsumsi maupun nutrisi bagi masyarakat pesisir di Kabupaten Merauke. Penelitian ini dilaksanakan pada ekosistem hutan mangrove pantai payum dari bulan Februari-April 2020. Selain memanfaatkan cangkangnya sebagai hiasan, aksesoris, dan kapur untuk aktivitas sirih pinang (kahos), daging moluska juga diolah menjadi makanan. Penelitian ini bertujuan untuk mengidentifikasi dan menganalisis komposisi jenis dan kelimpahan moluska yang dikonsumsi oleh masyarakat lokal. Metode yang digunakan yakni wawancara dan purposive sampling method dengan penggunaan plot 10 x 10 m dengan pengulangan 3 kali pada setiap 3 stasiun pengamatan. Hasilnya terdapat 9 jenis moluska yang dimanfaatkan sebagai sumber makanan yakni Cassidula angulifera, Ellobium aurisjudae, Telescopium telescopium, Terebralia palustris, Terebralia semistriata, Cerithidea anticipata, Nerita lineata, Stramonita gradata, dan Onchidium daemelii. Komposisi jenis dan Kelimpahan relatif tertinggi pada Stasiun I, II maupun III yaitu Cerithidea anticipata yakni total individu mencapai 4.609 individu dengan KR 46.77% sedangkan yang paling sedikit adalah jenis Ellobium aurisjudae dengan total individu sebanyak 18 ind dan KR 0,18%.
Kata Kunci: Kelimpahan, komposisi, moluska, mangrove, Merauk
Church and Gospel Teachers in Minahasa
No full textThis research aims to historically explain the general situation of Dutch colonialism in the early twentieth century in Minahasa. Research also describes the motivation and purpose of forming the Pangkal Setia organization by zending teachers in the early twentieth century. It explains the results of the struggle obtained by the zending teachers through the Pangkal Setia organization in the early twentieth century in Tomohon. According to Marc Bloch (1988), this research uses the historical method, which consists of 4 (four) stages, namely problem formulation and historical observation; data collection is implemented by studying documents: archives, books, magazines, newspapers, and research results earlier. The data from archives and other sources are historically critiqued and interpreted into facts, then assembled into historical stories of the events studied. The study results concluded that the Nederlandsche Zendelingen Genootschape-NZG (Gospel Preaching Agency) carries out its mission in Indonesia. It also seeks education through opening schools for the community in its working area. The NZG applied the same task in Minahasa and later produced two groups of educated people, called 'Congregational Teachers and Gospel Teachers'. However, in carrying out their church ministry duties, they were distinguished when they served during the Indische Kerk (Dutch colonial government church) in Minahasa
