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Joshian N.W. Schaduw
FPIK UNSRAT
Earth & Planetary Sciences

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KARAKTERISTIK SAMPAH LAUT DI PANTAI TUMPAAN DESA TATELI DUA KECAMATAN MANDOLANG KABUPATEN MINAHASA Nafiri C. Patuwo; Wilmy Etwil Pelle; Hermanto W.K. Manengkey; Joshian N.W. Schaduw; Indri Manembu; Edwin L.A. Ngangi
JURNAL PESISIR DAN LAUT TROPIS Vol. 8 No. 1 (2020): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.8.1.2020.27493

Abstract

The coastal region is the transitional area between the terrestrial and marine environment that has a great change of experiencing pressure due to pollution. This matter can caused by the strong population of Indonesia, quite high tourist activities, sea transportations, and large infra structure development. Marine debris in particular plastic is a big problem, not only in Indonesia, but also around the world. Hence, Indonesia is considered to be the second largest plastic waste producer in the world. Marine debris is part of a broader problem regarding waste management. Solid waste management has become a challenge for public health. In this research, garbage observation was done by adapting the shoreline survey method based on the national oceanic and atmospheric administration (NOAA, 2013). The results of observations of the research found that the type of macro-debris and meso-debris collected in the transect of observations were 228 items with a total weight of 2062.32 grams. Plastics debris were found in most quantities followed by rubbers, glasses and metals. The main factor for the abundance of marine debris in the coastal area of Tateli dua village Mandolang subdistrict Minahasa regency was the household waste, indicating that land-based sources provide a key factor for plastic pollution on the coastal area. Keywords: Marine debris, shoreline survey, pollution, coastal environment, Minahasa regency. AbstrakWilayah pesisir yang merupakan sumber daya potensial di Indonesia, adalah daerah peralihan antara daratan dan lautan. Sumber daya ini sangat besar yang didukung oleh adanya garis pantai sepanjang sekitar 81.000 km. Garis pantai yang panjang ini menyimpan potensi kekayaan sumber alam yang besar.Potensi itu diantaranya potensi non hayati dan hayati. Disamping potensi sumberdaya alam yang tersebar luas di pesisir Indonesia, potensi pencemaran terhadap lingkungan pesisir dan laut pun memiliki peluang yang cukup besar.Peluang ini dapat disebabkan oleh padatnya penduduk Indonesia, aktivitas wisata yang cukup tinggi termasuk transportasi, dan pembangunan yang besar.Sampah laut khususnya plastik merupakan masalah besar, bukan hanya di Indonesia, tetapi di seluruh dunia.Indonesia juga dianggap sebagai produsen sampah plastik ke laut terbesar kedua di dunia.Sampah laut merupakan bagian dari masalah yang lebih luas terkait pengelolaan sampah.Pengelolaan sampah padat telah menjadi tantangan kesehatan masyarakat.Pengamatan sampah dilakukan dengan adaptasi metode shoreline survey methodology berdasarkan National Oceanic and Atmospheric Administration(NOAA, 2013). Hasil pengamatan di lokasi penelitian di temukan jenis sampah makro-debris dan meso-debris yang dikumpulkan pada transek pengamatan sebanyak228 item dengan bobot total 2062,32 gram. Hasil penelitian menunjukkan bahwa plastik debris ditemukan dalam jumlah terbanyak diikuti oleh karet, kaca dan logam. Faktor utama penyebab kelimpahan sampah laut di Pantai Tumpaan Desa Tateli Dua, Kecamatan Mandolang, Kabupaten Minahasa adalah sampah aktivitas penduduk yang menunjukkan bahwa sumber-sumber berbasis lahan menyediakan input utama untuk polusi plastik di pantai tersebut. Kata Kunci: Sampah laut, survey garis pantai, pencemaran, lingkungan pesisir, Kabupaten Minahasa
STRUKTUR KOMUNITAS MANGROVE DI DESA LESAH, KECAMATAN TAGULANDANG, KABUPATEN SITARO Indra Asman; Calvyn F A Sondak; Joshian N W Schaduw; Deislie R H Kumampung; Medy Ompi; Haryani Sambali
JURNAL PESISIR DAN LAUT TROPIS Vol. 8 No. 2 (2020): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.8.2.2020.28769

Abstract

Mangroves are forests that grow in brackish water and are affected by tides and seawater, and these forests grow specifically in places where there are pavement and accumulation of organic material. The purpose of this research is to identify the types of mangroves and determine the structure of the mangrove community in Lesah Village. This research was conducted from September to October 2019. The method used in this research is the quadrant line transect method. The types of mangroves were identified with identification books. Community structure data taken are density, frequency, dominance and important value index (IVI) and then analyzed with Microsoft Excel program. Based on the results of the research, there are 2 types of mangroves found in the research location, Rhizophora stylosa and Sonneratia alba. The highest density value (0.122 ind / m2), relative density (81.88%), frequency types (1), relative frequency (50%). Closure types (1.83 m2), types of relative closure (50.18%), the highest important value index at the research site was (182.12%). The results of the mangrove ecological index data analysis for the diversity index value (0.51), dominance (0.73). Keywords: Structure Community, Mangrove, Lesah Village. Abstrak Mangrove adalah hutan yang tumbuh di air payau, dan dipengaruhi oleh pasang surut air laut dan hutan ini tumbuh khususnya di tempat-tempat di mana terjadi pelumpuaran dan akumulasi bahan oraganik. Tujuan dari penelitian adalah mengidentifikasi jenis-jenis mangrove dan mengetahui struktur komunitas mangrove di Desa Lesah. Penelitian dilaksanakan dari September-Oktober 2019. Metode yang digunakan adalah metode line transek kuadran. Jenis-jenis mangrove di identifikasi dengan bantuan buku identifikasi. Data struktur komunitas yang di ambil adalah kerepatan, ferkuensi, dominasi dan indeks nilai penting(INP) dan kemudian di analisa dengan bantuan program computer Microsoft Excel. Berdasarkan hasil penelitian terdapat 2 jenis mangrove yang terdiri dari, Rhizophora stylosa dan Sonneratia alba. Nilai kerepatan tertinggi (0.122 ind/m2), kerapatan relatif jenis (81.88%), frekuensi jenis (1), frekuensi relatif jenis (50%). Penutupan jenis (1.83 m2), penutupan relatif jenis (50.18%), indeks nilai penting tertinggi dilokasi penelitian adalah (182.12%). Hasil analisis data indeks ekologi mangrove untuk nilai indeks keanekaragaman (0.51), dominasi(0.73). Kata Kunci: Struktur Komunitas, Mangrove, Desa Lesah.
KONDISI TERUMBU KARANG PADA KAWASAN WISATA PANTAI MALALAYANG KOTA MANADO PROVINSI SULAWESI UTARA DENGAN MENGGUNAKAN METODE UNDERWATER PHOTO TRANSECT Devidson Daud; Joshian N. W. Schaduw; Chatrien Luzianna Sinjal; Janny D Kusen; Erli Y Kaligis; Adnan S Wantasen
JURNAL PESISIR DAN LAUT TROPIS Vol. 9 No. 1 (2021): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.9.1.2021.33575

Abstract

Coral reefs are coastal ecosystems with the highest level of diversity with around one million species worldwide. Corals are invertebrates belonging to the Phylum Coelenterate (hollow animals) or Cnidaria. The Underwater Photo Transect (UPT) method is a method that utilizes technological developments, both digital camera technology and computer software technology. Capturing data in the field in the form of underwater photos carried out by shooting using a Canon G-16 camera equipped with a waterproof protector (housing). In this study it can be seen that the percentage of hard corals at point 1 is in the medium category, point 2 is in the medium category, and point 3 is in the bad category with the percentage of hard coral cover as follows: point 1 (one) 29.75%, point 2 (two) 31.16%, and point 3 (three) 24.26%, of the three points can represent the overall condition of the coral reefs in Malalayang Beach which is in moderate condition with a percentage of 28.39%.Keywords: Malalayang Beach, Coral Reef, UPT, CPCe
STRUKTUR KOMUNITAS DAN ZONASI VEGETASI MANGROVE DESA DARUNU KECAMATAN WORI KABUPATEN MINAHASA UTARA Udin Upara; Janny Dirk Kusen; Calvyn F.A. Sondak; Joshian N.W Schaduw; Sandra Olivia Tilaar; Ridwan Lasabuda
JURNAL PESISIR DAN LAUT TROPIS Vol. 9 No. 1 (2021): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.9.1.2021.33957

Abstract

Mangrove ecosystem is a collection of distinctive plant types that contained in tropical and subtropical coastal region. The purpose of research was to find out the community structure and mangrove zonation at Darunu Village, Wori District, North Minahasa Regency. The research was conducted by   the quadrant transect line method. It was done by pulling a straight line, perpendicular from the outermost mangrove area to the land direction, along 100 m by determining three data retrieval Station. To determine the condition of mangrove then density, species frequency, species coverage, important value index, diversity index and equality types were analyzed. The result found 5 mangroves species, namely: Rhizophora apiculata, R. mucronata, Sonneratia alba, Bruguiera gymnorrhiza and Avicennia officinalis. The highest density value was R.apiculata, as well as species frequency, while the species coverage value  found in S. alba. The diversity value found at Station 2. The zonation of mangrove vegetation in Darunu village respectively, at Station 1 and 2 in the front was overgrown by R.apiculata species with sandy mud substrate.  The Station 3 was overgrown by S.alba species with sandy mud. Generalyl, this location substrate contains of sandy mud and mud.Keywords : Mangrove, community structure, zonation.
IDENTIFIKASI SAMPAH ANORGANIK PADA EKOSISTEM MANGROVE DI DESA LESAH KECAMATAN TAGULANDANG KABUPATEN SITARO Stenly J Loliwu; Natalie DC Rumampuk; Joshian NW Schaduw; Sandra O Tilaar; Frans Lumoindong; Billy Th. Wagey; Ari B Rondonuwu
JURNAL PESISIR DAN LAUT TROPIS Vol. 9 No. 2 (2021): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.9.2.2021.34852

Abstract

Based on the material content, waste is grouped into two types, namely organic waste (waste derived from animal, plant and human parts) and inorganic waste (waste derived from materials such as metal, glass, styrofoam, plastic and rubber). Inorganic waste is one of the coastal pollution problems, yet information about inorganic waste in mangrove ecosystem was relatively low, especially at Lesah Village, Tagulandang Sub district, Sitaro Regency. This study aims to determine the distribution of inorganic waste by type and to analyze the characteristic of inorganic waste based on the amount of size and weight found. The method used in this research is the line transects method at 3 different stations. The results showed that the types of marine debris that found were plastic, rubber, metal, and glass waste and there were 2 characteristics, namely mega-debris and macro-debris. Of the various types of debris obtained, plastic is the most commonly found, 161 items/23.329m2 (69.099 Items/ha) with a total weight of 1357.75 gram/ha and a total size of 1938.93 cm/ha. Followed by rubber debris as many as 5 items/23.329m2 (2.146 items/ha) with a total weight of 159.309 gram/ha and a total size of 59.871 cm/ha. Then, glass debris as many as 4 items/23.329m2 (1.717 items/ha) with a total weight of 402,159 grams/ha a total size of 31.030 cm/ha. Whereas, metal debris is the lowest value found as many as 3 item/23.329m2 (1.288 items/ha) with a total weight of 67.622 gram/ha and a total size of 19.528 cm/ha.Keywords: Inorganic waste, Mangrove Ecosystem, Desa Lesah
KEANEKARAGAMAN DAN KELIMPAHAN FILUM ECHINODERMATA PADA ZONA INTERTIDAL MOLAS KECAMATAN BUNAKEN KOTA MANADO Novia A Jambo; Erly Y Kaligis; Deslie RH Kumampung; Suria Darwisito; Joshian NW Schaduw; Silvester B Pratasik
JURNAL PESISIR DAN LAUT TROPIS Vol. 9 No. 2 (2021): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.9.2.2021.35771

Abstract

Echinoderms are one of the main components of marine biodiversity that play an important role in ecosystem function. The purpose of this study to determine the diversity, abudance,dominance, frequency and important value index of the phylum Echinoderm.The method use in this research was cruising method and the quadratic transect method. The results of this study on intertidal zone of Molas obtained as a whole includes four classes, namely Asteroidea, Echinoidea, Ophiuroidea and Holothuroidea with a total of 12 species. Based on data analysis used the quadratic transect method, it was obtained: at station I H' = 1.666, the highest species abundance index is Protoreaster nodosus at 1.133 ind/m2 and relative at 40.48%, C = 0.245 and the highest relative dominance of P. nodusus was 66.90%, the highest species frequency index is P. nodusus of 0.467 and a relative of 33.33% and the highest important value index is P. nodusus of 140.71% while at station II it is obtained H' = 1,384, The highest species abundance index is Diadema setosum at 3.067 ind/m2 and relative 55.42%, C = 0.359 and the highest relative dominance is D. setosum at 85.63%, the highest species frequency index is P. nodusus at 0.4 and relative at 27. 27% and the highest important value index of D. setosum was 159.23%.Keywords: Echinoderms, Diversity, Abundance, Dominance, Frequency, Important Value Index
STRUKTUR KOMUNITAS DAN PERSENTASE TUTUPAN LAMUN DI MARINE FIELD STATION UNIVERSITAS SAM RATULANGI Anastasia V Senduk; Joshian N W Schaduw; Veibe Warouw; Billy Th. Wagey; Joice RTSL Rimper; Anneke V Lohoo
JURNAL PESISIR DAN LAUT TROPIS Vol. 9 No. 3 (2021): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.9.3.2021.38583

Abstract

In the world there are 60 species of seagrass, and 12 types are found in Indonesia. This study aims to determine the results of the description of the community structure and the percentage cover of seagrass in the waters of the Marine Fields Station, observations were made at 2 (ST.1 & ST.2) stations using themethod seagrass watch and the results of data analysis of the community structure using the equation formula from Cox, 1967. In the waters of the Marine Fields Station, there are 6 species, namely Enhalus acoroides, Thalassia hemprichii, Cymodocea rotundata, Syringodium isoetifolium, Halodule pinifolia, and Halophile ovalis. The results of the percentage of seagrass cover at ST.1 were 58.85% and ST.2 53.13% and the average value obtained from these 2 stations was 55.99%. Overall, the community structure of ST.1 species Thalassia hemprichii has the highest important value index of 80.66%. And in ST.2 Syringodium isoetifolium which has the highest important value index is 93.27%. Parameters in the waters of Maine Field Station, namely pH, salinity, temperature, substrate are good. Keywords: Seagrass, Percentage Cover, Community Structure 
IDENTIFIKASI SAMPAH ANORGANIK DI PESISIR PANTAI BITUNG KARANGRIA KECAMATAN TUMINTING KOTA MANADO Irwansya Surjanto; Joshian N. W Schaduw; Natalie Detty Rumampuk; Farnis B. Boneka; Joice Rimper; James Paulus
JURNAL PESISIR DAN LAUT TROPIS Vol. 11 No. 3 (2023): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.11.3.2023.53655

Abstract

Inorganic waste refers to waste or refuse generated from various processes, which cannot naturally decompose and generally require a very long time for breakdown. The method used for data collection follows the shoreline survey methodology. The research was conducted along a line transect, with a length of 100 meters and a width of 5 meters on each side, and observers walked along the transect line. The study was carried out over a span of 2 months. The observation transect line began perpendicular to the coastline, covering a length of 100 meters and a width of 5 meters on each side, resulting in an area of 100 x 10. This area was meant to represent the research site. Based on the research findings, the total quantity of inorganic waste collected was 305 pieces per 1000 square meters (3,050 pieces per hectare). The most commonly found type of waste was plastic, with 151 pieces per 1000 square meters (1,510 pieces per hectare), accounting for 49.5%. The research results revealed that the heaviest waste category was glass, weighing 2,793 pieces per 1000 square meters (27,930 pieces per hectare), making up 62.5% of the total.Keywords: Inorganic Waste, Coastal, Bitung KarangriaABSTRAKSampah anorganik adalah sampah atau limbah yang dihasilkan dari berbagai macam proses, dimana jenis sampah ini tidak akan bisa terurai oleh bakteri secara alami dan pada umumnya akan membutuhkan waktu yang sangat lama dalam proses penguraiannya. Metode yang digunakan untuk pengambilan data yakni metode shoreline survey methodology. Penelitian dilakukan pada line transect, dengan Panjang 100 meter dan lebar masing-masing 5 meter ke arah kiri dan ke kanan dan pengobservasi berjalan kaki sepanjang transek garis. Penelitian ini dilakukan selama 2 bulan, Jalur transek pengamatan dimulai dengan arah tegak lurus pesisir pantai sepanjang 100 meter dan lebar 5 meter dengan diameter 100 x 10, dimana jalur transek tersebut harus mewakili wilayah penelitian. Berdasarkan hasil penelitian sampah Anorganik yang didapatkan secara keseluruhan total jumlah sampah adalah 305 pot/1000m2 (3.050 Pot/ Ha). Jenis sampah plastik merupakan jenis yang paling banyak ditemukan sebanyak 151 pot/1000m2 (1.510 Pot/Ha) dengan presentase 49.5%. Hasil Penelitian berat bobot sampah yang pertama adalah sampah kaca dengan berat 2793 pot/1000m2 (27.930 Pot/Ha) dengan persentasi 62.5%.Kata Kunci: Sampah Anorganik, Pesisir Pantai, Bitung Karangria
Co-Authors Adnan S Wantasen Anastasia V Senduk Anneke V Lohoo Ari B Rondonuwu Billy Th. Wagey Calvyn F. A. Sondak, Calvyn F. A. Chatrien Luzianna Sinjal Deislie R H Kumampung Deslie RH Kumampung Devidson Daud Edwin L.A. Ngangi Erli Y Kaligis Erly Y Kaligis Farnis B. Boneka Frans Lumoindong Haryani Sambali Hermanto W.K. Manengkey Indra Asman Indri Manembu Irwansya Surjanto James Paulus Janny D Kusen Janny Dirk Kusen Joice Rimper Joice RTSL Rimper Medy Ompi Nafiri C. Patuwo Natalie DC Rumampuk Natalie Detty Rumampuk Novia A Jambo Ridwan Lasabuda Sandra O Tilaar Sandra Olivia Tilaar Silvester B Pratasik Stenly J Loliwu Suria Darwisito Udin Upara Veibe Warouw Wilmy Etwil Pelle