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Phylogenetic Position of Eurihaline Rotifer Brachionus sp. Originated From Tumpaan Waters, South Minahasa, North Sulawesi Herlina Pasaribu; Inneke Rumengan; Stenly Wullur; Henki Manoppo; Joice Rimper; Reiny Tumbol
JURNAL BIOS LOGOS Vol. 13 No. 1 (2023): JURNAL BIOS LOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.v13i1.45792

Abstract

This study aims to determine the phylogenetic position of rotifer Brachionus sp. sample originated from Tumpaan coastal water, North Sulawesi in the phylogenetic tree of Brachionus spp. from 27 samples of rotifer selected from 100 samples available in NCBI Genbank. The phylogeny tree was constructed on the basis of COI (Cytochrome Oxidase I) gene sequences using MEGA7 software and the neighbor-joining method. Results show that the phylogeny tree was divided into 2 clades, the group (closely related group) and out-group (distantly related group). It is confirmed that the position of the rotifer originating from Tumpaan Coastal Water is within in group, which has closely related to the B. plicatilis complex BUS06 indicated by a bootstrap value of 80%. The group belongs to SS-type rotifers with an average body size of 149±1.3 μm. This rotifer group has been known as live prey for fish larvae with a mouth-opening size of 150 μm.
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