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All Journal Jurnal Ilmu-Ilmu Perairan dan Perikanan Indonesia Jurnal Statistika Universitas Muhammadiyah Semarang Journal of Marine and Coastal Science
Rita Rachmawati
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Environmental Science Immunology & microbiology

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Penelusuran Varietas Ikan Gurame, Osphronemus Goramy, Lacepede,Dengan Menggunakan Analisis Komponen utama Kadarwan Soewardi; Rita Rachmawati; Dietriech G Bengen; Ridwan Affandi
Jurnal Ilmu-Ilmu Perairan dan Perikanan Indonesia Vol. 3 No. 1 (1995): Juni 1995
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (10.661 KB)

Abstract

Penelitian ini bertujuan untuk mengidentifikasi kemungkinan adanya perbedaan populasi ikan gurame berdasarkan karakter morfometrik. Dad S50 contoh ikan yang digunakan, 100 contoh berasal dad Purwokerto, Banyumas (2 kelompok), dan 250 contoh berasal dad Parung, Bogor (5 kelompok). Pengukuran karakter morfometrik dilakukan dengan menggunakan metode morfometrik baku dengan 12 karakter dan metode truss motphometrics (truss morfometrik) dengan 23 karakter. Data yang terdid at as data morfometrik, data nisbah morfometrik dan data truss morfometrik dianalisis dengan menggunakan Analisis Komponen Utama. Hasil Analisis Komponen Utama memperlihatkan adanya kecenderungan bahwa individu asal Banyumas merupakan satu populasi, dan berbeda dengan populasi yang berasal dad Parung. Di antara grup populasi gurame asal Parung, terdapat dua varietas yaitu gurame bastar dan gurame paris yang memiliki karakter morfometrik berbeda,dibandingkan dengan gurame grup populasi yang lain, yaitu bule, blusafir dan batu.Kata-kata kunci : ikan gurame, vadetas, analisis komponen utama
PENELUSURAN V ARIETAS IKAN GURAME, Osphrollemus goramy, Lacepede, BERDASARKAN PENAMPILAN KARAKTER LUAR (FENOTIP) Kadarwan Soewardi; Rita Rachmawati; Ridwan Affandi; Dietriech G Bengen
Jurnal Ilmu-Ilmu Perairan dan Perikanan Indonesia Vol. 3 No. 2 (1995): Desember 1995
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (10.661 KB)

Abstract

Penelitian ini bertujuan untuk dapat mengidentifikasi keberadaan varietas-varietas ikan gurame yang ada berdasarkan karakter luar (fenotip). Pada penelitian ini, 250 contoh ikan gurame yang berasal dari Parung (Bogor), telah digunakan sebagai hewan uji. Hasilpenelitian telab berhasil diidentifikasi keberadaan lima varietas ikan gurame (bule,blusafir, paris, bastar dan batu) berdasarkan karakter fenotip berupa warna, bentuk kepala, bentuk tubuh dan pola sisik.Kata-kata kunci: identifikasi, varietas, ikan gurame
ANALISIS ANTREAN DENGAN SISTEM JUMLAH KEDATANGAN BERDISTRIBUSI BETA, WEIBULL, NORMAL, DAN ERLANG (STUDI KASUS GERBANG TOL MUKTIHARJO) Sugito Sugito; Erna Musri Arlita; Diah Safitri; Abdul Hoyyi; Rita Rachmawati
Jurnal Statistika Universitas Muhammadiyah Semarang Vol 6, No 1 (2018): Jurnal Statistika Universitas Muhammadiyah Semarang
Publisher : Department Statistics, Faculty Mathematics and Natural Science, UNIMUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (423.239 KB) | DOI: 10.26714/jsunimus.6.1.2018.%p

Abstract

Semarang is the capital city of Central Java Province so that development in Semarang City progressed very rapidly, this requires transportation facilities and infrastructure that good, smoothly and efficiently. One of the important transport infrastructure for Semarang City is a toll road. Muktiharjo toll gate is one of the exiting toll gate in Semarang City. Muktiharjo toll gate provides two types of service namely booths toll booths, a regular and automated toll booths. The existances two types of toll booths that provided the analysis needs to be done, then the line to find out how the system line that is in Muktiharjo toll gate. The research result obtained the model line at the Muktiharjo toll gate  (BETA / G / 3) :( GD / ¥ / ¥) for regular toll road of Surabaya-Semarang direction, (WEIB / G / 1) :( GD / ¥ / ¥) for the Surabaya-Semarang automatic toll booth, (NORM / G / 2) :( GD / ¥ / ¥) for the regular toll road of Semarang-Surabaya and (ERLA / G / 2) :( GD / ¥ / ¥) Semarang-Surabaya automatic toll road. Based on simulation using Arena software, the addition of substations can reduce the waiting time of vehicles in line, while substation reduction can extend the waiting time of vehicles in line.Keyword : Queue theory, Queue simulation, Regular toll gate, Automatic toll gate, Arrival, Service.
Genetic Diversity of Unhatched Sea Turtle Eggs in Buleleng, Bali Indonesia Hatchery Based on The Mitochondrial Control region Locus Immanuel Pratama; Ni Putu Dian Pertiwi; I Made Oka Riawan; Ni Luh Astria Yusmalinda; Andrianus Sembiring; Luh Putu Candra Apriliani; Ni Komang Rossa Sri Savitri; Srie Marhaeni Julyasih, Ketut; Jafron Syah, Moh; Rita Rachmawati
Journal of Marine and Coastal Science Vol. 14 No. 3 (2025): SEPTEMBER
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jmcs.v14i3.77095

Abstract

Sea turtles are protected animals that are threatened with extinction due to natural and anthropogenic factors such as coastal erosion and illegal trade. This study aims to analyze the genetic diversity of sea turtles in Buleleng using mitochondrial DNA from unhatched egg samples. Samples were collected from two nests at several breeding sites to determine genetic variation within a single conservation area. Molecular analysis was conducted on the control region locus with a sequence length of 869 bp. The results of the identification showed that the samples originated from three species: green sea turtles (Chelonia mydas), olive ridley sea turtles (Lepidochelys olivacea), and hawksbill sea turtles (Eretmochelys imbricata), with sequence similarities of 99.44%–99.77%. The phylogenetic tree formed four clades with bootstrap values of 79–100%, supporting the classification and kinship relationships between species. Low intraspecific genetic distance (0–0.2%) and interspecific genetic distance (16.4–21.4%) indicate high similarity within a species and significant differences between species. The results of this study can be used to strengthen effective genetics-based sea turtle conservation programs in the Buleleng region of North Bali.
Co-Authors Abdul Hoyyi Andrianus Sembiring Diah Safitri Dietriech Geoffrey Bengen Erna Musri Arlita I Made Oka Riawan Immanuel Pratama Jafron Syah, Moh Kadarwan Soewardi Ketut Srie Marhaeni Julyasih Luh Putu Candra Apriliani Ni Komang Rossa Sri Savitri Ni Luh Astria Yusmalinda Ni Putu Dian Pertiwi RIDWAN AFFANDI Sugito Sugito