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All Journal AGRISAINS AQUATIC SCIENCE & MANAGEMENT e-Journal BUDIDAYA PERAIRAN JURNAL PESISIR DAN LAUT TROPIS JURNAL ILMIAH PLATAX JURNAL LPPM BIDANG SAINS DAN TEKNOLOGI
Joshian N.W. Schaduw
Fakultas Perikanan dan Ilmu Kelautan, Universitas Sam Ratulangi, Manado, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Environmental Science

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BIOEKOLOGI MANGROVE DAERAH PERLINDUNGAN LAUT BEBASIS MASYARAKAT DESA BLONGKO KECAMATAN SINONSAYANG KABUPATEN MINAHASA SELATAN PROVINSI SULAWESI UTARA Schaduw, Joshian N. W.
JURNAL LPPM BIDANG SAINS DAN TEKNOLOGI Vol 2, No 1 (2015)
Publisher : JURNAL LPPM BIDANG SAINS DAN TEKNOLOGI

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Abstract

Penelitian ini bertujuan untuk mengetahui kodisi bioekologi mangrove yang ada di Desa Blongko Kecamatan Sinonsayang Kabupaten Minahasa Selatan Provinsi Sulawesi Utara, parameter yang diukur adalah struktur komunitas mangrove dan kualitas air yang merepresentasikan lingkungan perairan ekosistem mangrove. Metode yang digunakan dalam penelitian ini adalah stratify random sampling, sedangkan data yang dibutuhkan adalah data primer dan sekunder dengan metode sampling pada ekosistem mangrove. Analisis yang digunakan dalam penelitian ini adalah indeks nilai penting, indeks keanekaragaman, keseragaman, dan dominansi. Hasil yang diperoleh adalah kondisi perairan ekosistem mangrove dalam keadaan yang baik, dan mendukung kelangsungan hidup organisme yang berasosiasi dengan mangrove. Vegetasi mangrove di Desa Blongko terdiri atas empat famili, dengan tujuh spesies. Famili mangrove tersebut adalah Avicenniaceae, Meliaceae, Rhizophoraceae, dan Sonneratiaceae. Sedangkan spesies mangrove yang ada di desa ini adalah Xylocarpus granatum, Avicennia lanata, Avicennia marina, Avicennia officinalis, Bruguiera gymnorrhiza, Rhizophora apiculata, dan Sonneratia alba . Nilai keseragaman yang dianalisis pada vegetasi mangrove yang ada di Desa Blongko menunjukkan angka 0,72. Nilai keseragaman ini menunjukkan bahwa jumlah individu setiap jenis tidak jauh berbeda. Hal ini juga digambarkan oleh nilai dominasi sebesar 0,42 yang mengindikasikan bahwa tidak ada jenis yang mendominasi pada kawasan mangrove ini.
KEBERLANJUTAN PENGELOLAAN EKOSISTEM MANGROVE PULAU MANTEHAGE, KECAMATAN WORI, KABUPATEN MINAHASA UTARA PROVINSI SULAWESI UTARA Schaduw, Joshian Nicolas William
JURNAL LPPM BIDANG SAINS DAN TEKNOLOGI Vol 2, No 2 (2015)
Publisher : JURNAL LPPM BIDANG SAINS DAN TEKNOLOGI

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Abstract

This study aimed to analyze the sustainability of mangrove ecosystem management in one small island located in the area of Bunaken National Park. Mantehage islands included in the township administration area Wori, North Minahasa Regency, North Sulawesi. This study will examine the sustainability of mangrove ecosystem management on the dimension of ecological, socio-economic, and institutional. The data used are primary and secondary analyzes that are used in this study is the Multidimensional scaling. The results obtained are sustainability Status Mantehage Island mangrove ecosystem management included in either category, but one of the three dimensions of the object of study has a low value that the ecological dimension. Environmental degradation caused by anthropogenic activities and the nature of this dimension will affect the future, so that special attention is needed for improved its environmental capacity, especially in the mangrove ecosystem.
KONDISI EKOLOGI MANGROVE PULAU BUNAKEN KOTA MANADO PROVINSI SULAWESI UTARA Schaduw, Joshian N. W.
JURNAL LPPM BIDANG SAINS DAN TEKNOLOGI Vol 3, No 2 (2016)
Publisher : JURNAL LPPM BIDANG SAINS DAN TEKNOLOGI

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Abstract

Kajian ini bertujuan untuk mengetahui kondisi ekologi ekosistem mangrove Pulau Bunaken. Pengukuran kondisi fisik dan kimia perairan ekosistem mangrove dilakukan pada masing-masing titik pengamatan. Variabel yang diukur adalah suhu, salinitas pH, DO, TSS, kekeruhan, NO3, dan PO4. Hasil ini akan menggambarkan kualitas air pada ekosistem mangrove, sedangkan pengambilan data vegetasi mangrove menggunakan metode pada Point-Centered Quarter Method (PCQM). Pulau Bunaken memiliki lima jenis mangrove yaitu Soneratia alba, Avicennia marina, Xylocarpus granatum, Rhizophora apiculata, dan Bruguiera gymnorrhiza, yang terbagi dalam empat family yaitu Sonneratiaceae, Avicenniaceae, Meliaceae, dan Rhizophoraceae. Indeks nilai penting mangrove tertinggi pada Kelurahan Alungbanua terlihat pada jenis Rhizophora apiculata , dan yang terendah adalah jenis Avicennia marina. Untuk Kelurahan Bunaken jenis Bruguiera gymnorrhiza dan yang terendah adalah jenis Rhizophora apiculata. Kondisi perairan ekosistem mangrove pulau Bunaken dalam keadaan yang baik, sesuai dengan baku mutu, dan mampu mendukung kelangsungan hidup biota yang berasosiasi didalamnya. Penelitian selanjutnya diharapkan mampu untuk mengkaji  kondisi ekologi lainnya seperti kondisi geomorfologi, sedimen, dan zonasi pada ekosistem mangrove.
PENGELOLAAN EKOSISTEM MANGROVE PULAU-PULAU KECIL TAMAN NASIONAL BUNAKEN BERBASIS KERENTANAN N.W. Schaduw, Joshian; Yulianda, Fredinan; G. Bengen, Dietriech; Setyobudiandi, Isdradjad
AgriSains Vol 12, No 3 (2011)
Publisher : FAPETKAN UNTAD

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Abstract

Mangrove ecosystem has many functions for coastal area, such as, functions of ecology, social and economic. These functions lead to systemic impact toward other coastal ecosystem environment and human life. Through mitigation, this function can be optimized to minimize the degradation of small island environment. This research analyzed the existing condition of mangrove ecosystem, vulnerability of small islands, and also pattern and management strategy of mitigation based on mangrove ecosystem. This research used both primary and secondary data. Primary data was gathered by sampling field observation, questioner, open interview and in-depth interview in the research area. Secondary data was gathered by literature review and from related institutions. Vulnerability index was analyzed using multi dimensional scaling method whereas vulnerability mapping was analyzed by analysis of geographic information system using the software Archieve Project 3.3. The results of this research was the mangrove ecosystem of small islands in Taman Nasional Bunaken needs to be better managing, considering the increasing rate of degradation and threats to these ecosystems. Nain Island was the most vulnerable island toward the threat of damaging ecosystems by human activities and natural factors. Management scheme which can accommodate a variety of problems faced by the mangrove ecosystems of small islands was collaborative management by the government as the leading sector with the highest priority on the management of the ecological dimension. Key words : Management, mangrove ecosystem, small island, vulnerability.
PENGELOLAAN EKOSISTEM MANGROVE BERBASIS MITIGASI (Kasus Pulau-Pulau Kecil Taman Nasional Bunaken) N.W. Schaduw, Joshian; Yulianda, Fredinan; G. Bengen, Dietriech; Setyobudiandi, Isdradjad
AgriSains Vol 13, No 2 (2012)
Publisher : FAPETKAN UNTAD

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Abstract

Small islands is an area that is susceptible to various factors. One of the factors influencing the ecological factors. These ecological factors include climate change, sea level rise, natural disasters, abrasion, sedimentation, erosion and pollution. To minimize vulnerability the effectiveness of these coastal ecosystems is urgently needed. This research analyze vulnerability of small island, mangrove ecosystem effectiveness and management strategy of mangrove ecosystem based mitigation. This research use both primary and secondary data primer data was gathered by sampling, field observation, and questioner analysis Vulnerability index was analyzed using multi dimensional scaling method whereas vulnerability mapping was analyzed by analysis of geographic information system using the software Archive project 3.3. Stakeholders analysis was used for patterns and strategic management, through a technique SMART (Simple multi attribute rating technique) using the software Criterium decision plus. The results from this research are Bunaken Island have the highest vulnerability level, followed by the island of Manado Tua, Nain and the lowest Mantehage island. The main factors of vulnerability in small island Bunaken National Park  is the area of mangrove ecosystems. Increased area of mangrove ecosystems will increase the effectiveness of mangrove ecosystems as a buffer zone as well as increase the capacity of these ecosystems on the social, economic, and governance dimension. Management scheme which can accommodate a variety of problems faced by the mangrove ecosystem of small islands is collaborative management by the government as the leading sector, with the highest priority on the management of the ecological dimension. Key words : Management, Mangrove ecosystem, mitigation, small island.
Karakterisasi lingkungan perairan Teluk Talengen Kabupaten Kepulauan Sangihe sebagai kawasan budidaya rumput laut Kappaphycus alvarezii Schaduw, Joshian N.W.; Ngangi, Edwin
e-Journal BUDIDAYA PERAIRAN Vol 3, No 2 (2015)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.3.2.2015.8458

Abstract

This paper was the result of a feasibility analysis of Talengen Bay Waters for aquaculture of Kappaphycus alvarezii. Feasibility analysis of water was based on the environmental data and water quality parameters of Talengen Bay. One mistake in the development of aquaculture is environmentally unsuitable. In order to develop aquaculture properly, appropriate water conditions data were required. Suitable aquatic environments are required by organisms for their survival because they are related to the patterns and behavior of the biota. In connection with the problems of mariculture at Talengen Bay, several efforts were required to overcome them. One of the efforts was made through this study that was assessment of appropriate location for the cultivation of seaweed. Talengen Gulf was located in  in the territory of Kampung  Talengen and  Kampung Bunga Lawang, Central District of Tabukan, Sangihe Islands Regency, North Sulawesi. Laboratory analysis was conducted at the Laboratory of Industrial Baristand Manado. Determination of research stations done intentionally (purposive sampling). Based on the results obtained it could then be concluded that the condition of the aquatic environment and water quality parameters in the Talengen Bay were categorized as suitable for seaweed cultivation K. alvarezii. Phosphate, nitrate, Total Suspended Solid data were needed to be considered. Keywords: Environmental characteristics, seaweed, aquaculture; Kappaphycus alvarezii
Land suitability of seaweed farming in Minahasa Regency, North Sulawesi Province Schaduw, Joshian N. W; Ngangi, Edwin L. A; Mudeng, Joppy D
AQUATIC SCIENCE & MANAGEMENT Vol 1, No 1 (2013): April
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jasm.1.1.2013.1972

Abstract

The success of seaweed cultivation is determined from the determination of the location. This is because the production and quality seaweed influenced by ecological factors including the condition of the substrate surface waters, water quality, climate, geographical bottom waters. Arakan villages in the District of South Minahasa regency become one of the centers of seaweed cultivation in the province of North Sulawesi. The specific objective of this study was obtained in the form of a map of suitability mapping seaweed cultivation areas; gathering data and information about the extent of the area, water capacity, area unit, and carrying water. The study was conducted in the waters of the village of Arakan, District Tatapaan, South Minahasa regency, North Sulawesi. When phase 3 study conducted every month from June to December in 2012. The analysis is based on space availability, suitability waters that support the cultivation of seaweed. Suitability space spatially waters using physical and chemical parameters of waters which is a prerequisite eligibility seaweed cultivation. Spatial observations by using a Geographic Information System (GIS) for the weights and scores in determining the suitability of land. Process is done through the preparation of spatial database and
Small island mitigation based on mangrove ecosystem management in Bunaken National Park Schaduw, Joshian N.W
AQUATIC SCIENCE & MANAGEMENT Vol 1, No 2 (2013): Oktober
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jasm.1.2.2013.7275

Abstract

Small islands are susceptible to many environmental impacts. Impacts affecting ecological processes include climate change, sea level rise, natural disasters, abrasion, sedimentation, erosion and pollution. To minimize vulnerability the assessing the effectiveness of mitigation measures in these coastal ecosystems is urgently needed. This research analyzes vulnerability of a small island mangrove ecosystem and the effectiveness of management strategy for mangrove ecosystem based mitigation. This research uses both primary and secondary data. Primary data was gathered by sampling, field observation, and questionnaire analysis. Vulnerability index was analyzed using multi-dimensional scaling method, and vulnerability mapping was analyzed by using geographic information system (GIS) using the software Arcview Project 3.3. Stakeholder analysis was used for patterns and strategic management, through a technique SMART (Simple Multi Attribute Rating Technique) using the software Criterium Decision Plus. The results show that Bunaken Island has the highest vulnerability level, followed by the island of Manado Tua, Nain, and the lowest level was found in Mantehage island. The most important factor of vulnerability in the small island Bunaken National Park is the area of mangrove ecosystem. Increased area of mangrove ecosystem will increase the effectiveness as a buffer zone as well as increase the capacity of the ecosystem on the social, economic, and governance dimensions. A management scheme which can accommodate a variety of problems faced by the mangrove ecosystem of small islands is a collaborative management by the government as the leading sector, with the highest priority on the management of the ecological dimension. Pulau-pulau kecil merupakan daerah yang rentan terhadap berbagai faktor. Salah satu faktor yang mempengaruhi adalah faktor ekologis. Faktor ekologi meliputi perubahan iklim, kenaikan permukaan air laut, bencana alam, abrasi, sedimentasi, erosi dan polusi. Untuk meminimalkan kerentanan, efektivitas ekosistem pesisir sangat dibutuhkan. Penelitian ini menganalisis kerentanan pulau kecil, efektivitas ekosistem mangrove, dan strategi pengelolaan ekosistem mangrove berbasis mitigasi. Penelitian ini menggunakan data primer dan sekunder. Data primer dikumpulkan melalui sampling, observasi lapangan, dan angket. Kerentanan dianalisis menggunakan metode multidimensional scaling, sedangkan pemetaan kerentanan dianalisis dengan sistem informasi geografis menggunakan perangkat lunak ArcView 3.3. Analisis Stakeholder digunakan untuk pola dan manajemen strategi, melalui teknik SMART (Simple atribut teknik Peringkat multi) dengan menggunakan perangkat lunak Criterium Decision Plus. Hasil penelitian menunjukkan Pulau Bunaken memiliki tingkat kerentanan tertinggi, diikuti oleh Pulau Manado Tua, Nain, dan Pulau Mantehage terendah. Faktor utama kerentanan di pulau kecil Taman Nasional Bunaken adalah luasan ekosistem mangrove. Peningkatan kawasan ekosistem mangrove akan meningkatkan efektivitas ekosistem mangrove sebagai buffer zone serta meningkatkan kapasitas ekosistem ini pada dimensi sosial, ekonomi, dan pemerintahan. Pola pengelolaan yang dapat menampung berbagai masalah yang dihadapi oleh ekosistem mangrove pulau-pulau kecil adalah kolaboratif manajemen dengan prioritas utam pada pengelolaan dimensi ekologi dan pemerintah sebagai leading sector.
Management strategies for dive sites in Bunaken Island (North Sulawesi, Indonesia), based on stakeholder’s perceptions Kamagi, Jongky W.A.; Schaduw, Joshian N.W.; Lasut, Markus T.
AQUATIC SCIENCE & MANAGEMENT Vol 4, No 2 (2016): Oktober
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jasm.4.2.2016.14449

Abstract

Title (Bahasa Indonesia): Strategi pengelolaan untuk daerah penyelaman berdasarkan persepsi stakeholder di Pulau Bunaken, Sulawesi Utara, Indonesia Bunaken Island is one of the island located in the Bunaken National Park, North Sulawesi, Indonesia. Most of the diving activities are in the waters of Bunaken Island, in which the management involves stakeholders (public, tourists, policy makers, NGOs, and academia). This study used questionnaires as a research instrument to obtain primary data, while secondary data were used as a complement to formulate an alternative strategy, using SWOT analysis. Based on the stakeholders’ perception, dive site management strategies covered research development on environmental issues, regulation availability, carrying capacity and information, community empowerment in addressing environmental problems, coordination among stakeholders for institutional issues and the environment, and improvement of service managing institutions in terms of organizational management and risk management. The study recommended the need for a clear management strategy, the necessity of doing research for regional development strategies/ locations for both diving and other potentials, the need of good marketing strategy, and the need for tourism activities diversification. Pulau bunaken merupakan salah satu pulau yang berada di dalam Taman Nasional Bunaken, Sulawesi Utara, Indonesia. Sebagian besar aktivitas penyelaman berada di Pulau Bunaken di mana dalam pengelolaannya melibatkan stakeholder (masyarakat, wisatawan, pengambil kebijakan, LSM, dan akademisi). Penelitian ini menggunakan instrumen kuesioner sebagai alat pengumpul data primer; data sekunder dikumpulkan sebagai pelengkap untuk merumuskan alternatif strategi, menggunakan analisis SWOT. Hasil analisis menunjukkan, secara umum, bahwa strategi pengelolaan daerah penyelaman, berdasarkan persepsi stakeholder, meliputi: pengembangan penelitian untuk isu-isu lingkungan; ketersediaan regulasi, pengelolaan pengunjung (daya dukung) dan informasi; pemberdayaan masyarakat dalam mengatasi masalah lingkungan; koordinasi antar stakeholder untuk isu-isu kelembagaan dan lingkungan; dan peningkatan pelayanan lembaga pengelola dalam hal manajemen organisasi maupun manajemen resiko. Penelitian ini merekomendasikan perlu adanya strategi pengelolaan yang jelas, perlu dilakukan penelitian untuk strategi pengembangan daerah/lokasi untuk objek wisata baik wisata selam maupun wisata lainnya, perlu strategi pemasaran yang baik, dan perlu diversifikasi aktivitas kegiatan pariwisata.
Community structure of mangrove at Marine Tourism Park of Kupang Bay, East Nusa Tenggara Bessie, Donny M; Schaduw, Joshian N; Reppie, Emil; Lasut, Markus T
AQUATIC SCIENCE & MANAGEMENT Edisi Khusus 1 (2013): Mei
Publisher : Graduate Program of Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jasm.0.0.2013.2270

Abstract

Mangrove gives major contributions to fishery production; however, due to an increasing demand of space for human activities, mangrove area is changed to many forms, such as settlement, industry, and recreation; beside lack of data and information available (biophysics, socio-economic, and culture). These may cause economical and ecological conflicts. This condition is currently happened in Marine Tourism Park of Kupang Bay (MTPKB). Accordingly, this study aims to analyze community structure of mangrove at MTPKB using survey method to observe mangrove vegetation and exploitation impact by community. In this study, 16 species of 9 families were found with categorized density from “rare” (20 individual/hectare) to “dense” (5.450 individual/hectare). The ecosystem was found has low diversity; it was due to high dominant index. Rhyzophora apiculata and Sonneratia alba were found two species which have big role in the marine park© Mangrove memberikan kontribusi yang besar terhadap produksi perikanan; namun, oleh karena kebutuhan manusia yang semakin meningkat, daerah mangrove dirubah menjadi daerah pemukiman, industri, dan rekreasi; di samping kurangnya data dan informasi yang tersedia. Hal ini dapat menimbulkan konflik secara ekonomi dan ekologi. Kondisi ini sedang terjadi di Taman Wisata Alam Laut Teluk Kupang (TWALTK). Oleh karena itu, penelitian ini dilakukan di mana bertujuan menganalisis struktur komunitas mangrove di TWALTK dengan menggunakan metode survei untuk melakukan pengamatan terhadap vegetasi mangrove dan aktifitas masyarakat dalam memanfaatkannya. Dalam penelitian ini ditemukan 16 jenis mangrove dari 9 famili dengan kerapatan terkategori dari ‘jarang’ (20 pohon/hektar) hingga ‘padat’ (5.450 pohon/hektar). Keanekaragaman ekosistem tersebut rendah karena tingginya nilai dominasi. Jenis Rhyzophora apiculata dan Sonneratia alba merupakan jenis yang memberikan pengaruh besar terhadap komunitas mangrove di taman wisata alam laut tersebut©
Co-Authors Adnan Wantasen Agung B. Windarto, Agung B. Andaki, Jardie Angmalisang, Ping Astony Anthoni, Annice Antonius P Rumengan Antonius Rumengan Ari B Rondonuwu, Ari B Ari Rondonuwu Asman, Indra Babo, Prengky P Bacmid, Kiki Nadila Bengkal, Krisandy Billy Theodorus Wagey Carolus Paulus Paruntu Coloay, Clive Griffen Darwisito, Surya Daud, Devidson Deiske Adeliene Sumilat, Deiske Adeliene Dietriech Geoffrey Bengen Djaguna, Asshidiq Donny M Bessie Edwin D Ngangi Emil Reppie Erly Y Kaligis Frans Lumoindong, Frans Fredinan Yulianda Hens Onibala Hermanto W. K. Manengkey Indri Manembu Isdradjad Setyobudiandi Iskandar, Angelitha O.T Jambo, Novia A Janny D Kusen Janny Dirk Kusen, Janny Dirk Joppy Mudeng Kahar, Muhammad Gibran Kaligis, Erli Y Kamagi, Jongky W.A. Kase, Ardy Kumampung, Deislie R H Kumampung, Deslie RH Kusen, Janny Lohoo, Anneke V Loliwu, Stenly J Lumingas, Laurence Mamuaja, Jane M. Manengkey, Hermanto W.K. Manopo, Victoria EN Mantiri, Desy M. H Marbun, Andreas Markus T. Lasut Medy Ompi Natalie D Rumampuk Nity, Elroi Pangemanan, Jeannete F Patuwo, Nafiri C. Paulus, James J H Pelle, Wilmy Pelle, Wilmy Etwil Rachim, M. Hatta Rangan, Jety Ridwan Lasabuda Rimper, Joice RTSL Robert A. Bara Roeroe, Kakaskasen A Roger R Tabalessy Rumampuk, Natalie D.C Rumampuk, Natalie DC Sambali, Haryani Sanadi, Troy Sandra Tilaar Sasauw, Juwinda Senduk, Anastasia V Silvester B Pratasik Sinjal, Chatrien Luzianna Sondak, Calvyn Sondak, Calvyn F A Sondak, Calvyn F.A Sondak, Calvyn F.A. Sondakh, Calvyn Suria Darwisito, Suria Upara, Udin Veibe Warouw Verisandria, Rio Watumlawar, Yunus Wilhelmina Patty Wilmy E Pelle Yostan Lahabu, Yostan