Claim Missing Document
Check
Articles

KAJIAN KOMUNITAS TERUMBU KARANG DAERAH PERLINDUNGAN LAUT PERAIRAN SITARDAS KABUPATEN TAPANULI TENGAH PROVINSI SUMATERA UTARA Hemat Sirait; M Mukhlis Kamal; Nurlisa A Butet
Jurnal Ilmu-Ilmu Perairan dan Perikanan Indonesia Vol. 16 No. 2 (2009): Desember 2009
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (162.693 KB)

Abstract

Terumbu karang merupakan salah satu ekosistem yang terdapat di pesisir pantai yang secara fisik berfungsi untuk melindungi pantai dari ombak dan gelombang. Penelitian ini bertujuan untuk mengetahui kondisi terumbu karang yang ada di Daerah Perlindungan Laut (DPL) Perairan Sitardas. Pengukuran persentase tutupan karang dilakukan dengan metode Line Intercept Transect, ikan karang dengan metode Underwater fish Visual Cencus, dan hewan bentik selain karang dengan metode Reef Check Benthos. Data sosial ekonomi masyarakat diambil secara purposive sampling dengan penyebaran kuisioner dan wawancara langsung. Analisis pengembangan untuk strategi pengelolaan ekosistem terumbu karang dan DPL menggunakan analisis Strength, Weakness, Opportunity, dan Threats (SWOT). Secara umum hasil penelitian dapat diketahui bahwa kondisi ekosistem terumbu karang di Perairan Sitardas mengalami kerusakan akibat penangkapan ikan dengan menggunakan bom dan potasium serta akibat penggunaan jangkar kapal nelayan.Kata kunci : bom, daerah perlindungan laut, perairan Sitardas, potasium, terumbu karang.
TEMPORAL DISTRIBUTION OF QUAHOG LARVAE ALONG A NORTH-SOUTH TRANSECT IN NARRAGANSETT BAY, RHODE ISLAND – USA Nurlisa A. Butet
Jurnal Ilmu-Ilmu Perairan dan Perikanan Indonesia Vol. 14 No. 2 (2007): Desember 2007
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (264.573 KB)

Abstract

Studi distribusi larva quahog dilakukan selama musim panas di Narragansett Bay, Rhode Island. Pengambilan contoh larva dilakukan setiap minggu pada lima stasiun pengambilan contoh di pesisir barat Rhode Island Sound. Tiga stasiun terletak di bagian atas estuari, yaitu Upper Bay. Sedangkan dua stasiun lainnya berada di bagian bawah estuari, yaitu Upper West Passage. Distribusi temporal quahog larva bersesuaian dengan fasa lunar; larva banyak ditemukan pada saat surut. Larva stadia awal (D-hinge veliger) pada umur 1-3 hari muncul setiap minggu selama pengambilan contoh dan kelimpahannya mencapai puncak pada 20 Juni. Kelimpahan larva stadia lanjut (umbonate veliger) lebih sedikit dibandingkan dengan stadia awal. Puncak kelimpahan stadia lanjut tersebut ditemukan pada 7 Juli di seluruh stasiun, kecuali satu stasiun. Puncak kelimpahan pada umumnya terjadi 6 – 12 hari setelah bulan baru ataupun bulan purnama, bersamaan dengan terjadinya surut terendah. Berdasarkan puncak kelimpahan kedua stadia perkembangannya, maka dapat diperkirakan bahwa lama hidup larva quahog sebagai plankton adalah sekitar 2-3 minggu. Dengan demikian intensitas penempelan tertinggi larva quahog stadia lanjut kemungkinan terjadi pada pertengahan Juli.Kata kunci: larva quahog, stadia awal, stadia lanjut, fasa lunar, transek utara-selatan.
Sex Ratio and Growth Pattern of Coconut Crabs Birgus latro (Crustacea, Decapoda, Cianobitidae) in North Moluccas Province, Indonesia Rugaya Serosero; Sulistiono Sulistiono; Nurlisa A. Butet; Etty Riani
Journal Omni-Akuatika Vol 15, No 1 (2019): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (460.69 KB) | DOI: 10.20884/1.oa.2019.15.1.527

Abstract

Coconut crab (Birgus latro) is a crustacean that has a large size until four kilograms. The study  aimed to analyze sex ratio and growth pattern including the relationship of thorax length - body weight, thorax width - body weight and cephalothorax length plus rostrum - body weight in Daeo (Morotai Island), Laigoma (South Halmahera District) and Fitako (North Halmahera District). The sex ratio was determined using χ2 test and the growth pattern was tested by the b value through t test. The results showed sex ratio of 1: 0.9 in Daeo (n = 581), 1: 0.6 in Laigoma (n = 24), and 1: 2 in Fitako (n = 31). The relationship of thorax length, thorax width and cephalothorax length plus rostrum with body weight were strongly correlated (R2> 70%). The growth pattern of coconut crab in Daeo was negative allometric, while in Laigoma and Fitako were negative allometric and isometric.
SPECIES COMPOSITION OF FRESHWATER EELS (Anguilla spp.) IN EIGHT RIVERS FLOWING TO PALABUHANRATU BAY, SUKABUMI, INDONESIA Agus Alim Hakim; M Mukhlis Kamal; Nurlisa A Butet; Ridwan Affandi
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 7 No. 2 (2015): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (298.365 KB) | DOI: 10.29244/jitkt.v7i2.11027

Abstract

Freshwater eel (Anguilla spp.) is a catadromus fish that migrates from freshwater into seawater for spawning and return to freshwater during larvae stage to grow. The objective of this study was to determine species composition of tropical freshwater eels based on morphology collected from several rivers flowing in to the Palabuhan Ratu Bay. Young, adult, and glass eels were caught in August 2014 until Desember 2014. Glass eels were only caught in Cimandiri River. Freshwater eels were classified by ano-dorsal length (AD) divided by total length (TL), cluster analysis, and discriminant analysis based on morphometric data. The results showed different AD/TL of young and adult, i.e., 1.93±0.51 for A. bicolor bicolor, and 16.99±0.65 for A. marmorata, and three different AD/TL of glass eels i.e.,1.72±1.05 for A. bicolor bicolor6.60±1.79 for A. nebulosa nebulosa, and 15.07±1.04 for A. marmorata. Cluster analysis showed three groups of population  characters of young and adult eels i.e.  A. bicolor bicolor (2 groups) and A. marmorata (1 group). Discriminant analysis showed three groups of glass eels population i.e., A. bicolor bicolor, A. nebulosa nebulosa, and A. marmorata. Morphological identification showed that young and adult eels in Cibareno  and Citepus rivers had two species i.e., A. bicolor bicolor and A. marmorata. Glass eels from Cimandiri river had three species i.e., A. bicolorbicolor, A. nebulosanebulosa, and A. marmorata. A. bicolor bicolor was found in each rivers and as a dominant species in Palabuhan Ratu Bay.Keywords: A. bicolor bicolor, A. marmorata, A. nebulosa nebulosa, species composition
MORPHOLOGICAL CHARACTER AND MOLECULAR IDENTIFICATION WITH COI GENE MARKER OF HORSESHOE CRABS (Tachypleus gigas) AT COASTAL WATERS OF NORTHERN JAVA ISLAND Lusita Meilana; Yusli Wardiatno; Nurlisa A Butet; Majariana Krisanti
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 8 No. 1 (2016): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (219.999 KB) | DOI: 10.29244/jitkt.v8i1.12651

Abstract

The existence of horseshoe crabs Tachypleus gigas is currently on the threatened condition and its population status is also unclear. The objectives of this research were to asses the horseshoe crabs morphological characters and to identify based on molecular marker of Cytochrome Oxydase Subunit I (COI) gene. The samples were collected from five locations (Segara Menyan Subang, Ujung Kulon Banten, Tambak Lorok Semarang, Betah Walang Demak, and Kenjeran Surabaya) in October 2014 until June 2015. A total of 27 parameters for 62 individuals were used to determine connectivity and character identifier among populations. Data were tested using non-parametric analysis. While, the 5 individuals from each sites were used for molecular analysis including several stages of the DNA extraction, DNA electrophoresis, amplification and visualization of DNA fragments, and DNA sequencing. The results obtained based on morphological characters that T. gigas of Surabaya formed a unique group due to its body size (X1-X2 and X4-X16) was larger than the other 5 body parts (X22, X23, X26-X28) of Semarang, Demak, Subang, and Banten. According to molecular results, there were 650 bp conserve nucleotide sequences. Analysis using software MEGA 5.0 showed that there were 73 existence of specific nucleotide sites that can be used to distinguishes between T. gigas in-groups  and out-groups (T. gigas from Central Arabian Sea, T. tridentatus from Sweden, and Carcinoscorpius rotundicauda from USA).Keywords: horseshoe crabs, Java coast, morphology, identification molecular, CO1 gene.
KEPASTIAN TAKSONOMI DAN SEBARAN BELANGKAS Tachypleus tridentatus Leach 1819 DI PERAIRAN BALIKPAPAN TIMUR . Erwyansyah; Yusli Wardiatno; Rahmat Kurnia; Nurlisa Alias Butet
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 10 No. 3 (2018): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5143.096 KB) | DOI: 10.29244/jitkt.v10i3.21917

Abstract

ABSTRAKBelangkas Tachypleus tridentatus adalah salah satu hewan bentik laut yang menghuni perairan pesisir Balikpapan Timur. Informasi tentang populasi belangkas di lokasi masih terbatas, dan IUCN secara luas mengklasifikasikannya dalam kategori data deficient. Penelitian ini bertujuan untuk menjelaskan kepastian taksonomi secara genetik dan sebaran T. tridentatus di perairan pesisir Balikpapan Timur. Belangkas diperoleh menggunakan alat tangkap nelayan setempat (dogol - sejenis pukat dan jaring insang) di daerah Teritip dan Manggar, masing-masing pada jarak sekitar 1 dan 2 mil dari garis pantai. Pengambilan belangkas dilakukan mulai Januari hingga Maret 2018 pada fase bulan berbeda. Belangkas yang tertangkap dihitung dan dicatat lokasi penangkapannya serta diamati karakter morfologinya untuk analisis sebaran dan sebagian belangkas diambil darahnya untuk analisis kepastian taksonomi dengan menggunakan penanda gen CO1. Karakter morfologi utama berupa telson yang berbentuk segitiga dan duri kecil yang banyak terdapat pada ophisthosoma, secara genetis menunjukkan bahwa jenis yang dikumpulkan adalah T. tridentatus. Sebagian besar belangkas yang ditemukan di lokasi penelitian adalah belangkas dewasa yang menyebar secara acak, dengan lebar prosoma berkisar antara 22,5 hingga 30,5 cm untuk jantan dan 28,5 hingga 37,5 cm untuk betina. Jumlah belangkas terbanyak ditemukan di daerah Teritip dan berdasarkan fase bulan terjadi pada kuarter ketiga. Penelitian ini menguatkan kepastian adanya jenis T. tridentatus di lokasi penelitian dengan ciri yang mudah dikenali serta konektivitas pergerakan T. tridentatus ke lokasi lain di sekitar perairan Balikpapan Timur. ABSTRACTThe tri-spine horseshoe crab Tachypleus tridentatus is one of marine benthic animals inhabiting East Balikpapan coastal waters. Information on horseshoe crab population in the location is still limited and IUCN broadly classifies the crab in deficient data category. This study was aimed at elucidating the taxonomic certainty genetically and distribution of T. tridentatus in coastal waters of East Balikpapan. The crabs were collected by local gear of fisherman (dogol – a trawl like fishing-gear and gill net) in the Teritip and Manggar areas, each at a distance of 1 and 2 miles from coastline. Collecting takes place between January to March 2018 at different moon phases, location, number and morphological characters of the crabs was recorded and blood was taken from some individuals. Primary morphological characters in the form of triangular shape of telson and abundant tiny spines on ophisthosoma, genetically ascertained that the collected crab is T. tridentatus. Most of these crabs found was adult and randomly dispersed; with the width of prosoma ranged from 22.5 to 30.5 cm for males and 28.5 to 37.5 cm for females. The highest number of crab was found in the Teritip area and in the third quarter moon phase. This study reinforce the certainty of T. tridentatus in the study site with easily recognized morphological characters and the connectivity with other sites around Eastern Balikpapan waters.
KARAKTER MORFOMETRIK DAN MORFOLOGI ABALON Haliotis squamata Reeve 1846 DI PESISIR SELATAN JAWA DAN BALI Syamsul Bachry; Dedy Duryadi Solihin; Rudhy Gustiano; Kadarwan Soewardi; Nurlisa A. Butet
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 11 No. 2 (2019): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (662.378 KB) | DOI: 10.29244/jitkt.v11i2.24672

Abstract

The standard of measurement of abalone is very important because it can help to identify accurately abalone shellfish based on shell morphology. This research was aimed to examine the truss morphometric and morphologycal characters of Haliotis squamata intraspecies in the southern coastal Java and Bali. The research was conducted from December 2014 to August 2016. Abalone was collected based on the purposive sampling method, it was then identified. The shellfish of abalone was measured and analyzed by using principal component analysis (PCA), canonical discriminant analysis and cluster analysis. The results showed that PCA was able to separate Haliotis squamata populations from Java and Bali using combination of PCIII and PCIV based on the factor coefficient values. The key characters that separated Haliotis squamata from the population of Java and Bali were the combination of characters BF (0.535) for PCIII and characters CH (0.522) for PCIV. Canonical discriminant analysis showed that Bali was the highest sharing component value (100%) of intra population and also the lowest sharing component of inter population (0%). The highest percentage of similarity was 99.91% that indicated the population of Binuangeun and Pangandaran, while the lowest was 99.31% for the population of Banyuwangi and Bali. The morphological characteristics of Haliotis squamata species in several locations showed specific characters such as color patterns, textures and shapes.
DISTRIBUSI SPASIAL IKAN BARONANG Siganus canaliculatus Park, 1797 PADA HABITAT PADANG LAMUN BERBEDA DI TELUK AMBON DALAM Husain Latuconsina; Ridwan Affandi; M. Mukhlis Kamal; Nurlisa A. Butet
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 12 No. 1 (2020): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (833.545 KB) | DOI: 10.29244/jitkt.v12i1.27908

Abstract

Ikan baronang Siganus canaliculatus merupakan jenis ikan demersal yang berasosiasi dengan padang lamun sebagai tempat asuhan dan pembesaran, mencari makan dan perlindungan. Penelitian ini bertujuan untuk menganalisis distribusi spasial S. canaliculatus pada habitat padang lamun berbeda. Penelitian dilaksanakan pada Agustus 2018-Juli 2019 di perairan Teluk Ambon Dalam. Ikan dikoleksi menggunakan pukat pantai bersamaan dengan pengukuran parameter lingkungan. Analisis statistik ditampilkan secara deskriptif dalam bentuk tabel, histogram, dendrogram dan grafik biplot. Hasil penelitian mendapatkan sebanyak 1.050 ekor yang terdiri atas 598 jantan dan 452 betina. Parameter lingkungan secara umum medukung kehidupan S. canalicultus yang memiliki preferensi habitat berbeda berdasarkan stadia hidupnya, kelompok ukuran dewasa cenderung terdistribusi pada habitat lamun vegetasi tunggal, berbanding terbalik dengan ukuran pradewasa pada habitat padang lamun vegetasi campuran, sedangkan ukuran juvenil terdistribusi luas pada berbagai tipe habitat yang membuktikan fungsi padang lamun sebagai tempat asuhan dan pembesaran.
FILOGENI POPULASI Haliotis squamata REEVE, 1846 DARI PANTAI SELATAN PULAU JAWA DAN BALI BERDASARKAN SEKUEN CYTOCHROME B DNA MITOKONDRIA Syamsul Bachry; Dedy D. Solihin; Rudhy Gustiano; Kadarwan Soewardi; Nurlisa A. Butet
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 12 No. 2 (2020): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitkt.v12i2.30691

Abstract

Abalon Haliotis squamata Reeve, 1846 adalah jenis abalon yang memiliki sebaran di perairan laut selatan Jawa dan Bali Indonesia. Tujuan penelitian ini adalah untuk menganalisis hubungan filogenetik H. squamata asal Pantai Selatan Pulau Jawa dan Bali berdasarkan sekuen gen Cytochrome b (Cyt b) DNA mitokondria. Sebanyak total 38 sampel dikoleksi dari Jawa (Binuangeun, Pangandaran, Banyuwangi) dan Bali (Buleleng). Sampel diekstraksi, diamplifikasi menggunakan metode PCR, dan sekuensing dilakukan dengan metode Sanger sequencing di 1st BASE Malaysia. Urutan primer yang digunakan dalam amplifikasi yaitu primer forward AB-Cytb DivF (5'-TAAGCCAATTCGTAAGGTTC-3') dan primer reverse AB-Cytb DivR (5'-AAAATACCACTCTGGCTGAA-3'). Jarak genetik dianalisis menggunakan metode Kimura 2-parameter dan konstruksi pohon filogenetik dilakukan dengan Neighbour-Joining dengan menggunakan program MEGA 7. Hasil yang diperoleh memperlihatkan bahwa perbedaan nukleotida spesifik sebesar 81 bp dari 820 bp. Jarak genetik intraspesies H. squamata asal perairan selatan Jawa dan Bali sebesar 0,96%-1,06%. Jarak genetik antar populasi asal Jawa dan Bali cukup tinggi sehingga kedua populasi ini memisah dan membentuk klaster sendiri berdasarkan pohon filogenetik. Dengan demikian, populasi Bali sudah mulai membentuk subpopulasi yang baru. Data yang diperoleh dalam penelitian akan sangat berguna untuk pengelolaan sumberdaya genetik abalon jenis H. squamata terkait dengan kelestarian dan pemanfaatannya.
Genetic Profile Assessment of Giant Clam Genus Tridacna as a Basis for Resource Management at Wakatobi National Park Waters Muhammad Nur Findra; Isdradjad Setyobudiandi; Nurlisa Alias Butet; Dedy Duryadi Solihin
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 22, No 2 (2017): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (801.089 KB) | DOI: 10.14710/ik.ijms.22.2.67-74

Abstract

Giant clam population has been decreased in a few years. Resource management requires information from various aspects, such as ecological, population, and other aspects. This study was aimed at assessing the genetic profile of Tridacna giant clam in Wakatobi National Park waters using Cytochrome oxidase subunit I (COI) genetic marker. Sample collection was conducted around the three main islands, i.e., Wangi-wangi, Kaledupa, and Tomia. Genetic analysis using COI gene may contribute in identifying giant clams up to the species level and showed the relationship among species. The research found 41 specific nucleotide sites for the clams. T. crocea, T. squamosa and T. maxima had 2, 15 and 24 sites, respectively. COI gene as a biological marker was able to separate groups of giant clam by species. Nucleotide variation of T. crocea from Wakatobi was the highest among other locations, so it could be used as a genetic source for translocation and domestication. Keywords: cytochrome oxidase subunit I, specific nucleotide, Tridacna, Wakatobi National Park