DOCSLIB.ORG

Survei Hidro-Oseanografi Di Perairan Raja Ampat, Papua Barat, Indonesia

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Survei Hidro-Oseanografi Di Perairan Raja Ampat, Papua Barat, Indonesia SURVEI HIDRO-OSEANOGRAFI DI PERAIRAN RAJA AMPAT, PAPUA BARAT, INDONESIA HYDRO-OCEANOGRAPHIC SURVEY AT RAJA AMPAT WATERS, WEST PAPUA, INDONESIA Athur Yordan Herwindya*, Hendra Kurnia Febriawan, Adam Budi Nugroho dan Arnold Dannari Balai Teknologi Survei Kelautan, Badan Pengkajian dan Penerapan Teknologi (BPPT), Jl. MH. Thamrin No. 8, Jakarta *E-mail: [email protected] ABSTRAK Kepulauan Raja Ampat merupakan salah satu tujuan wisata utama di Indonesia dan juga sebagai kawasan konservasi alam. Hal tersebut disebabkan karena wilayah tersebut kaya akan keanekaragaman hayati, kenampakan dan sumber daya alam, serta budaya. Pada tahun 2014, pemerintah Indonesia menyelenggarakan kegiatan Sail Raja Ampat sebagai bagian promosi pembangunan di wilayah tersebut. Badan Pengkajian dan Penerapan Teknologi (BPPT) berperan dalam kegiatan Sail tersebut dengan menggunakan KR Baruna Jaya IV untuk melakukan survei kelautan maupun kegiatan diseminasi teknologi. Penelitian ini bertujuan untuk memberikan gambaran kegiatan survei hidro-oseanografi di perairan Raja Ampat sebagai bagian kegiatan Sail Raja Ampat. Kegiatan survei dilakukan pada dua area utama yaitu Teluk Kabui dan Selat Sagewin. Hasil menunjukkan bahwa survei tersebut mampu memberikan gambaran morfologi di kedua area tersebut. Secara batimetri perairan Teluk Kabui memiliki kedalaman antara 18 – 53 meter, sedangkan kedalaman perairan Selat Sagewin berkisar antara 104 - 508 meter. Rata – rata suhu di perairan Raja Ampat diketahui berkisar antara 29.2˚ – 30.5˚C dan memiliki salinitas berkisar antara 31 - 34 psu. Litologi berupa batupasir, batugamping, dan lempung juga berhasil diketahui dari survei tersebut. Data – data ilmiah kebumian tersebut bermanfaat untuk melengkapi data – data yang sudah ada ataupun sebagai dasar perencanaan kegiatan penelitian selanjutnya. Disamping itu, data tersebut dapat dimanfaatkan untuk mengetahui karakteristik alam di perairan Raja Ampat sebagai pendukung kegiatan pembangunan di wilayah tersebut. Kata Kunci: Raja Ampat, hidrografi, oseanografi, multibeam, CTD, sub bottom profiler ABSTRACT [Hydro-oceanographic Survey at Raja Ampat Waters, West Papua, Indonesia] Raja Ampat archipelago is one of the major tourism destinations in Indonesia and a nature conservation area. This is due to the abundance of biodiversity, natural features and resources, as well as culture. In 2014, the Indonesian government organized Sail Raja Ampat as a promotion program for the development of Raja Ampat. Badan Pengkajian dan Penerapan Teknologi (BPPT) took part in the event by using RV Baruna Jaya IV to perform a marine survey and technological dissemination activity. This study is aimed to describe hydro-oceanographic survey activity at the Raja Ampat waters as a part of the Sail Raja Ampat. The survey was conducted at the two main areas: Teluk Kabui and Selat Sagewin. Results indicate that the survei has successfully revealed morphological features in both areas. The bathymetry shows that Teluk Kabui has a bathymetry depth of 18 – 53 meters, while the bathymetry of Selat Sagewin is about 104 – 508 meters. The average temperature of the region is approximately 29.2˚ – 30.5˚C with a salinity of 31 - 34 psu. Lithological features as sandstones, limestones, and clays were also obtained. Those results and data are useful to complement the existing data and to future research activities. In addition, the data could also be used to evaluate the natural characteristics of Raja Ampat waters and to support the development activity in that area. Keywords: Raja Ampat, hydrography, oceanography, multibeam, CTD, sub bottom profiler 48 Oseanika: Jurnal Riset dan Rekayasa Kelautan Volume 1 Nomor 2 Tahun 2020 1. PENDAHULUAN Wilayah kepulauan Raja Ampat merupakan salah satu kabupaten yang berada di Provinsi Papua Barat, Indonesia. Kepulauan ini terdiri dari empat kepulauan utama yaitu Waigeo, Batanta, Salawati, dan Misool beserta ratusan pulau – pulau kecil (Larsen et al., 2018). Wilayah kepulauan Raja Ampat merupakan pusat dari segitiga terumbu karang “coral triangle” dunia yang sangat kaya keanekaragaman terumbu karang. Hukom et al. (2018) memprediksi bahwa terdapat sekitar 474 spesies ikan terumbu karang, 456 spesies terumbu keras (hard coral), dan juga 699 spesies moluska di wilayah tersebut. Disamping itu, wilayah ini juga merupakan titik konsentrasi dari habitat Cetacea seperti ikan paus, dan spesies lain seperti penyu, hiu, dugong, dan lumba – lumba (Papilaya et al., 2019). Priatna & Sadhotomo (2011) juga menyebutkan bahwa gugusan terumbu karang di wilayah tersebut juga berpengaruh pada ekosistem ikan – ikan pelagis. Keanekaragam ekosistem yang lain juga terdapat di wilayah tersebut seperti padang lamun, hutan mangrove, dan pantai – pantai tebing berbatu (Papilaya et al., 2019). Secara oseanografi dan biogeografi, Donnelly et al. (2003) menjelaskan bahwa wilayah kepulauan Raja Ampat terletak pada batas barat wilayah Samudra Pasifik di khatulistiwa dan pada jalur masuk timur laut “Indonesian Throughflow”dari Samudra Pasifik ke Samudra Hindia sehingga menarik untuk dijadikan kajian ilmiah. Secara geologi mereka juga menyebutkan bahwa Selat Sagewin, yang merupakan pembatas dua continental shelf, merupakan objek kajian ilmiah yang menarik karena diduga terdapat Sesar Sorong di area tersebut. Kepulauan Raja Ampat saat ini berkembang menjadi kawasan konservasi dan tujuan wisata nasional dan internasional. Dari beberapa pilihan kegiatan wisata, kegiatan penyelaman merupakan kegiatan utama wisatawan di kawasan Raja Ampat. Papilaya et al. (2019) menemukan sedikitnya ada 15 lokasi penyelaman yang terkenal bagi wisatawan dengan jumlah penyelam berkisar antara 20 – 500 penyelam per hari. Ditambah lagi kegiatan – kegiatan wisata lain di wilayah tersebut menyebabkan adanya potensi wisata dan pembangunan yang harus ditingkatkan di kepulauan Raja Ampat. Untuk lebih menggalakkan program pariwisata dan pembangunan di Raja Ampat, pemerintah menyelenggarakan kegiatan Sail Raja Ampat pada Tahun 2014. Pada kegiatan Sail Raja ampat tersebut, berbagai kegiatan lintas kementerian dan lembaga serta pemerintah daerah telah ditetapkan dan menjadi bagian keberhasilan program pemerintah, khususnya mendukung Propinsi Papua Barat sebagai destinasi utama pariwisata dunia. Balai Teknologi Survei Kelautan, Badan Pengkajian dan Penerapan Teknologi (BPPT) terlibat secara aktif dalam rangkaian Sail Raja Ampat 2014 tersebut. Dengan menggunakan Kapal Riset (KR.) Baruna Jaya IV, BPPT berpartisipasi dalam rangkaian kegiatan, khususnya dalam bidang kegiatan ekspedisi kapal riset dan ilmiah kelautan. Salah satu kegiatan ilmiah kelautan dalam Sail Raja Ampat tersebut adalah kegiatan survei hidro-oseanografi. Disamping itu terdapat ekspedisi kapal berupa pengenalan dan diseminasi kapal dan peralatan riset kelautan kepada pejabat dan masyarakat sekitar Raja Ampat. Penelitian ini bertujuan untuk mendeskripsikan kegiatan survei hidro-oseanografi di perairan Raja Ampat, Papua Barat, Indonesia. Survei hidro-oceanografi tersebut terdiri dari beberapa kegiatan survei sepertisurvei multibeam batimetri, survei oseanografi (suhu dan salinitas), dan survei sub bottom profiler (SBP) yang merupakan kegiatan utama dari ekspedisi riset Sail Raja Ampat tersebut. Kegiatan survei hidro- oseanografi tersebut diharapkan dapat memberikan data ilmiah kebumian sebagai 49 pelengkap data – data ilmiah yang sudah ada dan untuk mendukung program pembangunan di wilayah Raja Ampat, Papua Barat, Indonesia. 2. METODOLOGI 2.1. Lokasi Studi Lokasi studi terletak di Kecamatan Waisai, Raja Ampat dengan koordinat area survei 02˚ 00’ S hingga 0˚00’ N dan 129˚00’ E hingga 131˚00’ E tepatnya di perairan Teluk Kabui dan Selat Sagewin, seperti terlihat pada Gambar 1. Kegiatan survei dilaksanakan selama 28 hari, mulai tanggal 17 Agustus sampai dengan 20 September 2014 menggunakan Kapal Riset Baruna Jaya IV. Gambar 1. Lokasi penelitian Pada survei tersebut, kegiatan navigasi dan penentuan posisi merupakan salah satu aspek penting dari keseluruhan kegiatan. Salah satu parameter dalam penentuan posisi tersebut adalah pemilihan datum geodesi dan proyeksi peta. Pada survei tersebut digunakan datum global WGS-84 dengan sistem proyeksi Universal Transverse Mercator (UTM) zone 52S. Oleh karena itu, penentuan posisi pada kegiatan survei batimetri dan survei oseanografi selanjutnya akan bereferensi pada datum tersebut. 2.2. Penentuan Posisi dan Navigasi Sistem penentuan posisi dan navigasi yang digunakan pada K.R. Baruna Jaya IV adalah DGPS F180 Coda Octopus. Sistem penentuan posisi tersebut merupakan sistem yang terintegrasi antara sistem penentuan posisi (koordinat) dan juga sistem pengukur pergerakan kapal (inertial motion unit/IMU) (Codaoctopus, 2020). Sistem tersebut 50 Oseanika: Jurnal Riset dan Rekayasa Kelautan Volume 1 Nomor 2 Tahun 2020 terdiri dari alat IMU dan dual-antenna GPS receiver. Coda Octopus F180 berfungsi untuk mendapatkan data arah (heading), dan data pergerakan inersial kapal (attitude) yang terdiri dari roll, pitch, yaw, dan heave. Menurut Sade et al. (2011), sistem tersebut dapat menghasilkan data pitch dan roll dengan ketelitian 0.02°, data heave dengan ketelitian 1.25 mm, dan data heading dengan ketelitian ~0.06°. Sistem kalibrasi dari sistem navigasi inersial ini menggunakan metode perhitungan yang didasarkan pada solusi aljabar linear. Algoritma perhitungan yang digunakan adalah 23-state Kalman filter. Algoritma ini dapat mengontrol data masukan dari GPS dan gerakan inersial secara real time untuk menghasilkan keluaran yang diperoleh dengan menghitung
Load more

Recommended publications
  • Four Undocumented Languages of Raja Ampat, West Papua, Indonesia
    Language Documentation and Description ISSN 1740-6234 ___________________________________________ This article appears in: Language Documentation and Description, vol 17. Editor: Peter K. Austin Four undocumented languages of Raja Ampat, West Papua, Indonesia LAURA ARNOLD Cite this article: Arnold, Laura. 2020. Four undocumented languages of Raja Ampat, West Papua, Indonesia. In Peter K. Austin (ed.) Language Documentation and Description 17, 25-43. London: EL Publishing. Link to this article: http://www.elpublishing.org/PID/180 This electronic version first published: July 2020 __________________________________________________ This article is published under a Creative Commons License CC-BY-NC (Attribution-NonCommercial). The licence permits users to use, reproduce, disseminate or display the article provided that the author is attributed as the original creator and that the reuse is restricted to non-commercial purposes i.e. research or educational use. See http://creativecommons.org/licenses/by-nc/4.0/ ______________________________________________________ EL Publishing For more EL Publishing articles and services: Website: http://www.elpublishing.org Submissions: http://www.elpublishing.org/submissions Four undocumented languages of Raja Ampat, West Papua, Indonesia Laura Arnold University of Edinburgh Summary Salawati, Batta, Biga, and As are four undocumented Austronesian languages belonging to the Raja Ampat-South Halmahera branch of South Halmahera- West New Guinea, spoken in West Papua province, Indonesia. Salawati, Batta, and Biga are spoken in the Raja Ampat archipelago, just off the western tip of the Bird’s Head peninsula of New Guinea, and As is spoken nearby on the New Guinea mainland. All four languages are to some degree endangered, as speakers shift to Papuan Malay, the local lingua franca: Biga is the most vital of the four languages, in that children are still acquiring it, whereas As is moribund, with only a handful of speakers remaining.
    [Show full text]
  • Marine Pollution Bulletin 64 (2012) 2279–2295
    Marine Pollution Bulletin 64 (2012) 2279–2295 Contents lists available at SciVerse ScienceDirect Marine Pollution Bulletin journal homepage: www.elsevier.com/locate/marpolbul Review Papuan Bird’s Head Seascape: Emerging threats and challenges in the global center of marine biodiversity ⇑ Sangeeta Mangubhai a, , Mark V. Erdmann b,j, Joanne R. Wilson a, Christine L. Huffard b, Ferdiel Ballamu c, Nur Ismu Hidayat d, Creusa Hitipeuw e, Muhammad E. Lazuardi b, Muhajir a, Defy Pada f, Gandi Purba g, Christovel Rotinsulu h, Lukas Rumetna a, Kartika Sumolang i, Wen Wen a a The Nature Conservancy, Indonesia Marine Program, Jl. Pengembak 2, Sanur, Bali 80228, Indonesia b Conservation International, Jl. Dr. Muwardi 17, Renon, Bali 80235, Indonesia c Yayasan Penyu Papua, Jl. Wiku No. 124, Sorong West Papua 98412, Indonesia d Conservation International, Jl. Kedondong Puncak Vihara, Sorong, West Papua 98414, Indonesia e World Wide Fund for Nature – Indonesia Program, Graha Simatupang Building, Tower 2 Unit C 7th-11th Floor, Jl. TB Simatupang Kav C-38, Jakarta Selatan 12540, Indonesia f Conservation International, Jl. Batu Putih, Kaimana, West Papua 98654, Indonesia g University of Papua, Jl. Gunung Salju, Amban, Manokwari, West Papua 98314, Indonesia h University of Rhode Island, College of Environmental and Life Sciences, Department of Marine Affairs, 1 Greenhouse Road, Kingston, RI 02881, USA i World Wide Fund for Nature – Indonesia Program, Jl. Manggurai, Wasior, West Papua, Indonesia j California Academy of Sciences, Golden Gate Park, San Francisco, CA 94118, USA article info abstract Keywords: The Bird’s Head Seascape located in eastern Indonesia is the global epicenter of tropical shallow water Coral Triangle marine biodiversity with over 600 species of corals and 1,638 species of coral reef fishes.
    [Show full text]
  • Historical Ecology of the Raja Ampat Archipelago, Papua Province, Indonesia
    ISSN 1198-6727 Fisheries Centre Research Reports 2006 Volume 14 Number 7 Historical Ecology of the Raja Ampat Archipelago, Papua Province, Indonesia Fisheries Centre, University of British Columbia, Canada Historical Ecology of the Raja Ampat Archipelago, Papua Province, Indonesia by Maria Lourdes D. Palomares and Johanna J. Heymans Fisheries Centre Research Reports 14(7) 64 pages © published 2006 by The Fisheries Centre, University of British Columbia 2202 Main Mall Vancouver, B.C., Canada, V6T 1Z4 ISSN 1198-6727 Fisheries Centre Research Reports 14(7) 2006 HISTORICAL ECOLOGY OF THE RAJA AMPAT ARCHIPELAGO, PAPUA PROVINCE, INDONESIA by Maria Lourdes D. Palomares and Johanna J. Heymans CONTENTS Page DIRECTOR’S FOREWORD ...................................................................................................................................... 1 Historical Ecology of the Raja Ampat Archipelago, Papua Province, Indonesia ........................................2 ABSTRACT ........................................................................................................................................................... 3 INTRODUCTION ...................................................................................................................................................4 The spice trade and the East Indies.........................................................................................................4 Explorations in New Guinea ...................................................................................................................
    [Show full text]
  • Traditional Marine Resource Management in Raja Ampat
    TRADITIONAL MARINE RESOURCE MANAGEMENT IN RAJA AMPAT, INDONESIA A THESIS SUBMITTED TO THE GRADUATE DIVISION OF THE UNIVERSITY OF HAWAI‘I IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF ARTS IN GEOGRAPHY DECEMBER 2007 By Elizabeth Mcleod Thesis Committee: Brian Szuster, Chairperson Jon Goss Lyndon Wester Alan Friedlander We certify that we have read this thesis and that, in our opinion, it is satisfactory in scope and quality as a thesis for the degree of Master of Arts in Geography. THESIS COMMITTEE __________________________ Chairperson __________________________ __________________________ __________________________ ii ACKNOWLEDGEMENTS This thesis is based on research carried out under a joint partnership with the Nature Conservancy and the University of Papua. I would like to acknowledge the contribution of my supervisor, Dr. Brian Szuster, and my thesis committee including Dr. Jon Goss, Dr. Lyndon Wester, and Dr. Alan Friedlander for their support and advice throughout. I would like to thank the people in the Raja Ampat, who hosted me and shared their stories, perspectives, and knowledge, specifically the Soltief family - Abdul Soltief, Muhammad Noch Soltief, Muhammad Tahir Soltief, Jainabun Soltief, Halima Soltief, and to Obi Loji, Stevanus Faam, Andreas Mjam, and Dian Boeng. To all of my friends at the Nature Conservancy in Bali and in Raja Ampat and the students from the University of Papua (Universitas Negeri Papua - UNIPA), thank you for your support of this work and your friendship. Many of you were invaluable with logistics, teaching me Bahasa Indonesia, and provided contacts in the villages. To Anton Suebu, Yohanis Goram, Lukas Rumetna, Elisabeth Pasapan, and Abdul Halim this work could not have been completed without your patience, moral support, translations, cultural advice, and ability to adapt to difficult and unexpected situations.
    [Show full text]
  • Two New Species of the Genus Cophixalus from the Raja
    ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Zoosystematics and Evolution Jahr/Year: 2015 Band/Volume: 91 Autor(en)/Author(s): Günther Rainer, Richards Stephen John, Tjaturadi Burhan, Krey Keliopas Artikel/Article: Two new species of the genus Cophixalus from the Raja Ampat Islands west of New Guinea (Amphibia, Anura, Microhylidae) 199-213 Creative Commons Attribution 4.0 licence (CC-BY); original download https://pensoft.net/journals Zoosyst. Evol. 91 (2) 2015, 199–213 | DOI 10.3897/zse.91.5411 museum für naturkunde Two new species of the genus Cophixalus from the Raja Ampat Islands west of New Guinea (Amphibia, Anura, Microhylidae) Rainer Günther1, Stephen Richards2, Burhan Tjaturadi3, Keliopas Krey4 1 Museum für Naturkunde Berlin, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Invalidenstr. 43, 10115 Berlin, Germany 2 Herpetology Department, South Australian Museum, North Terrace, Adelaide, South Australia 5000, Australia 3 Conservation International – Papua Program. Current address: Center for Environmental Studies, Sanata Dharma University (CESSDU), Yogyakarta, Indonesia 4 Department of Biology, University of Papua, Manokwari, West Papua Province, Indonesia http://zoobank.org/D0A2D523-7D80-493A-A120-5E3C8B588A28 Corresponding author: Rainer Günther ([email protected]) Abstract Received 4 June 2015 Based on morphological and bioacoustic traits, two new species of the microhylid genus Accepted 3 September 2015 Cophixalus Boettger, 1892 are described from the Raja Ampat Islands off the western tip Published 1 October 2015 of New Guinea. Both are small (SUL < 23 mm), slender, scansorial species that are mor- phologically most similar to Cophixalus tetzlaffi Günther and C. monosyllabus Günther, Academic editor: two congeners also known only from far western New Guinea.
    [Show full text]
  • Four Undocumented Languages of Raja Ampat, West Papua, Indonesia', Language Documentation and Description, Vol
    Edinburgh Research Explorer Four undocumented languages of Raja Ampat, West Papua, Indonesia Citation for published version: Arnold, L 2020, 'Four undocumented languages of Raja Ampat, West Papua, Indonesia', Language Documentation and Description, vol. 17, pp. 25-43. <http://www.elpublishing.org/PID/180> Link: Link to publication record in Edinburgh Research Explorer Document Version: Publisher's PDF, also known as Version of record Published In: Language Documentation and Description General rights Copyright for the publications made accessible via the Edinburgh Research Explorer is retained by the author(s) and / or other copyright owners and it is a condition of accessing these publications that users recognise and abide by the legal requirements associated with these rights. Take down policy The University of Edinburgh has made every reasonable effort to ensure that Edinburgh Research Explorer content complies with UK legislation. If you believe that the public display of this file breaches copyright please contact [email protected] providing details, and we will remove access to the work immediately and investigate your claim. Download date: 06. Oct. 2021 Language Documentation and Description ISSN 1740-6234 ___________________________________________ This article appears in: Language Documentation and Description, vol 17. Editor: Peter K. Austin Four undocumented languages of Raja Ampat, West Papua, Indonesia LAURA ARNOLD Cite this article: Arnold, Laura. 2020. Four undocumented languages of Raja Ampat, West Papua, Indonesia. In Peter K. Austin (ed.) Language Documentation and Description 17, 25-43. London: EL Publishing. Link to this article: http://www.elpublishing.org/PID/180 This electronic version first published: July 2020 __________________________________________________ This article is published under a Creative Commons License CC-BY-NC (Attribution-NonCommercial).
    [Show full text]
  • Sesar Geser Sorong Segmen Sorong-Kofiau, Papua Barat, Indonesia: Bukti Dari Data Batimetri Dan Sbp
    SESAR GESER SORONG SEGMEN SORONG-KOFIAU, PAPUA BARAT, INDONESIA: BUKTI DARI DATA BATIMETRI DAN SBP SORONG-KOFIAU SEGMENT OF SORONG STRIKE-SLIP FAULT, WEST PAPUA, INDONESIA: EVIDENCE OF BATHIMETRY AND SBP DATA Haryadi Permana1, 2 dan K.L. Gaol1 1Pusat Penelitian Geoteknologi LIPI, Jl. Sangkuriang, Bandung-40135. Telp: 22 250 3654. Fak: 22 250 4593 [email protected]/[email protected] Diterima : 05-02-2018, Disetujui : 21-05-2018 ABSTRAK Ekspedisi Widya Nusantara (e-Win) yang dilaksanakan LIPI pada tahun 2007 dengan menggunakan Kapal Riset Baruna Jaya VIII di daerah lepas pantai Sorong dan Kepulauan Raja Ampat telah menghasilkan beragam data antara lain data batimetri dan data profil geologi bawah permukaan. Sesar Sorong segmen Sorong-Kofiau yang teridentifikasi dari kedua jenis data tersebut memanjang barat daya - timur laut sepanjang 170km. Lajur sesar tersebut membentuk lembah sedalam 2025-2300m di sekitar lepas pantai Kota Sorong, mendangkal sampai 600-700m di Selat Sagewin sampai ke arah P. Kofiau. Sesar Sorong merupakan sesar geser sinistral dicirikan oleh struktur bunga positif, lipatan seret dan cekungan tarik. Di selatan segmen sesar tersebut, Blok Kepala Burung bagian baratdaya dicirikan oleh suatu paparan yang dibatasi oleh sesar-sesar bongkah. Kata Kunci: Sesar Sorong segmen Sorong-Kofiau, sesar geser sinistral, struktur bunga positif, lipatan seret, cekungan tarik, sesar bongkah ABSTRACT The expedition of Widya Nusantara (e-Win) carried out by LIPI in 2007 using Baruna Jaya VIII Research Vessel in Sorong offshore and Raja Ampat Islands had produced various data including bathymetry and sub-bottom profile (SBP). The Sorong-Kofiau segment of Sorong fault has southwest-northeast in direction and 170Km length, is identified from both types of data.
    [Show full text]
  • Raja Ampat – the Paradise of West Papua
    Raja Ampat – The Paradise of West Papua Naturetrek Tour Report 4th – 17th March 2020 Bryde’s Whale Wilson’s Bird of Paradise Tassled Wobbegong Shark Spinner Dolphin Report & images by Alison Steel Naturetrek Mingledown Barn Wolf's Lane Chawton Alton Hampshire GU34 3HJ UK T: +44 (0)1962 733051 E: [email protected] W: www.naturetrek.co.uk Tour Report Raja Ampat – The Paradise of West Papua Tour participants: Alison Steel (Leader) and Chas Anderson (Cruise Leader) with 13 Naturetrek clients Introduction Guests on this inaugural 14-day tour of Raja Ampat enjoyed some of the most pristine and unspoiled scenery that Indonesia has to offer. There were some to fantastic sightings of cetaceans, of at least five different species: Indo-pacific Bottlenose, Pantropical Spotted and Spinner Dolphins plus Omura’s and Bryde’s Whales. The group also enjoyed wonderful snorkelling over breath-taking, colourful coral reefs full of life; vast shoals of fish in many colours swam alongside Green and Hawksbill Turtles, Black-tip and White-tip Reef Sharks, Moray Eels, Nudibranchs and Rays. We visited the island of Waigeo in search of Red and Wilson’s Birds-of-Paradise, seeing Glossy Manocude, parrots, cockatoos and friarbirds too. Our ever helpful boat crew were always on hand to enhance our experiences, during the land based excursions as well as on and in the water. We were truly privileged to have visited such a beautiful part of the world. Day 1 Wednesday 4th March London to Doha This evening the group met at Heathrow to board an overnight flight to Doha.
    [Show full text]
  • FINAL DRAFT Report on a Rapid Ecological Assessment of the Raja
    FINAL DRAFT Report on a rapid ecological assessment of the Raja Ampat Islands, Papua, Eastern Indonesia held October 30 – November 22, 2002 PEMDA KABUPATEN RAJA AMPAT Report on a rapid ecological assessment of the Raja Ampat Islands, Papua, Eastern Indonesia, held October 30 – November 22, 2002 Final Draft November 2003 The Nature Conservancy - Southeast Asia Center for Marine Protected Areas Jl Pengembak 2, Sanur, Bali, INDONESIA phone +62 361 287272, fax +62 361 270737 Compiled and edited by Ryan Donnelly, Duncan Neville and Dr Peter J. Mous Lay-out by Muhammad Barmawi Table of contents Acknowledgements ........................................................................................................................................... 7 Chapter 1 Executive Summary........................................................................................................................ 9 1.1 Introduction ............................................................................................................................................. 9 1.2 Methodology.......................................................................................................................................... 10 1.3 Results ................................................................................................................................................... 14 1.3.1 Socio-economic Conditions............................................................................................................ 14 1.3.2 Coral Reef Fishes ..........................................................................................................................
    [Show full text]
  • Sasi and Marine Conservation in Raja Ampat, Indonesia
    See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/248988051 Sasi and Marine Conservation in Raja Ampat, Indonesia Article in Coastal Management · January 2009 DOI: 10.1080/08920750903244143 CITATIONS READS 62 2,066 3 authors: Elizabeth Mcleod Brian W. Szuster The Nature Conservancy University of Hawaiʻi at Mānoa 60 PUBLICATIONS 4,295 CITATIONS 41 PUBLICATIONS 738 CITATIONS SEE PROFILE SEE PROFILE Rodney Salm The Nature Conservancy 59 PUBLICATIONS 4,383 CITATIONS SEE PROFILE Some of the authors of this publication are also working on these related projects: coastal and marine tourism View project Conservation strategies to sustain coral reefs under climate change View project All content following this page was uploaded by Elizabeth Mcleod on 13 November 2014. The user has requested enhancement of the downloaded file. This article was downloaded by: [University of Hawaii] On: 27 March 2010 Access details: Access Details: [subscription number 918986668] Publisher Taylor & Francis Informa Ltd Registered in England and Wales Registered Number: 1072954 Registered office: Mortimer House, 37- 41 Mortimer Street, London W1T 3JH, UK Coastal Management Publication details, including instructions for authors and subscription information: http://www.informaworld.com/smpp/title~content=t713626371 Sasi and Marine Conservation in Raja Ampat, Indonesia Elizabeth McLeod a; Brian Szuster b;Rodney Salm a a The Nature Conservancy, Honolulu, Hawaii, USA b Department of Geography, University of Hawai'i
    [Show full text]
  • Two New Microhylid Frog Species of the Genus Xenorhina Peters, 1863 from the Raja Ampat Islands, Indonesia
    70 (3): 333 – 347 © Senckenberg Gesellschaft für Naturforschung, 2020. 2020 Two new microhylid frog species of the genus Xenorhina Peters, 1863 from the Raja Ampat Islands, Indonesia Rainer Günther 1, *, Stephen J. Richards 2, Burhan Tjaturadi 3 & Keliopas Krey 4 1 Museum für Naturkunde, Herpetologie, Invalidenstr. 43, 10115 Berlin, Germany — 2 South Australian Museum, North Terrace, Adelaide, South Australia, 5000, Australia — 3 Center for Environmental Studies, Sanata Dharma University (CESSDU), Yogyakarta, Indonesia — 4 De- partment of Biology, Faculty of Mathematics and Natural Sciences, University of Papua, Manokwari, Indonesia — * Corresponding author; email: [email protected] Submitted March 17, 2020. Accepted July 6, 2020. Published online at www.senckenberg.de/vertebrate-zoology on August 4, 2020. Published in print on Q3/2020. Editor in charge: Raffael Ernst Abstract Two new species of the asterophryine microhylid genus Xenorhina are described from the Raja Ampat archipelago off the western tip of New Guinea. Both are medium-sized (snout-urostyle length 29.9 – 35.2 and 28.5 – 39.5 mm), semi-fossorial frogs that call from hidden positions within the litter or under the soil surface. The two new species are morphologically similar but they have different advertisement calls. Although they are probably closely related, genetic studies are required to confrm this. The frst species is known only from Salawati Island, a land-bridge island that was connected to the New Guinea mainland during the last glacial period. The second species is currently known only from Waigeo Island, an oceanic island long isolated from New Guinea that is separated from nearby Salawati by a major bio- geographic barrier, the narrow but deep Sagewin Strait.
    [Show full text]
  • Ecosystem-Based Management in the Bird's Head Seascape, Indonesia
    ECOSYSTEM - BASED MANAGEMENT IN THE BIRD’S HEAD SEASCAPE INDONESIA Translating the results of scientific studies into recommendations for marine resource management ECOSYSTEM-BASED MANAGEMENT IN THE BIRD’S HEAD SEASCAPE Photos, cover: Background of healthy coral reefs: © Burt Jones and Maurine Shimlock/Secret Sea Visions; Left to right sequence: Ayau island: © Crissy Huffard/CI, Sedimentation: © Burt Jones and Maurine Shimlock/Secret Sea Visions, Turtle: © Burt Jones and Maurine Shimlock/Secret Sea Visions, Catching sharks in the area of Sasi: Anonymous ECOSYSTEM-BASED MANAGEMENT IN THE BIRD’S HEAD SEASCAPE TABLE OF CONTENTS ECOSYSTEM-BASED MANAGEMENT 1 COMMON PROBLEMS, POTENTIAL SOLUTIONS 1 BACKGROUND 2 ECOSYSTEM-BASED MANAGEMENT 4 ECOSYSTEM-BASED MANAGEMENT STUDIES 4 1. HISTORICAL ECOLOGY OF THE BIRD’S HEAD SEASCAPE 5 2. THE DISTRIBUTION, STATUS AND MANAGEMENT OF GROUPER SPAWNING AGGREGATIONS IN RAJA AMPAT 5 3. SEA TURTLES MIGRATION, NESTING, AND FORAGING ECOLOGY 7 4. SEA SURFACE TEMPERATURE PATTERNS OF THE BHS 10 5. GENETIC CONNECTIVITY OF REEF ASSOCIATED ANIMALS IN THE BHS 12 6. CATCH PROFITABILITY OF THE LIFT-NET FISHERY IN RAJA AMPAT 13 7. PATTERNS OF MARINE RESOURCE USE IN RAJA AMPAT 15 8. UNDERSTANDING COMPLEX ECOLOGICAL INTERACTIONS AMONG SPECIES AND THE STATUS OF FISHERIES SPECIES POPULATIONS 17 9. DEVELOPING ZONING PLANS FOR THE NETWORK OF MPAS IN RAJA AMPAT – BALANCING COMMUNITY USE AND CONSERVATION 19 10. ECONOMIC VALUATION OF ECOSYSTEM SERVICES IN THE BIRD’S HEAD SEASCAPE 21 11. DEVELOPING A GOVERNANCE STRUCTURE FOR THE
    [Show full text]