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Journal : JURNAL RISET DIWA BAHARI

Identifikasi Jenis dan Kepadatan Sampah Laut di Pantai Melon Kabupaten Selayar Isman, Muh; Noor, Rahmat Januar; Afdal, Muh
Jurnal Riset Diwa Bahari (JRDB) Volume 2, Nomor 1, 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Institut Teknologi dan Bisnis Maritim Balik Diwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63249/jrdb.v2i1.19

Abstract

The presence of marine debris in the waters can change the quality of the waters, which is caused by anthropogenic activities. This marine debris is a persistent solid material, which is intentionally or unintentionally thrown away and left in the marine environment. This research aims to determine the type and density of marine debris. The research was carried out in August 2022 at Melon Beach, Selayar Regency. The research uses a descriptive quantitative approach by conducting field surveys. Data analysis uses descriptive techniques to classify the types of marine waste collected and calculate the density and mass of the waste. The research results showed that there were 27 types of macro waste and 5 types of micro waste. The density of plastic waste ranged from 3-6 items/m2, whereas in this study the density of plastic waste ranged from 0.0001-0.008 items/m2.
Keterkaitan antara Faktor Lingkungan Hidro Oseanografi dengan Komunitas Gastropoda pada Kondisi Mangrove Berbeda di Kabupaten Kepulauan Selayar Abbas, Ahmad Ashar; Lapong, Muh. Imran; Noor, Rahmat Januar; Fathuddin
Jurnal Riset Diwa Bahari (JRDB) Volume 2, Nomor 1, 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Institut Teknologi dan Bisnis Maritim Balik Diwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63249/jrdb.v2i1.20

Abstract

A study of the mangrove ecosystem, gastropod community structure, and the influence of hydrooceanography at three district station points on Selayar Island was carried out from March to April 2017. This research aims to show mangrove density in various conditions, to reveal the structure of the gastropod community. and the influence of hydrooceanography. This research was analyzed using the Shannon Wiener index variation method and The Principle Component Analysis (PCA). Overall research findings show: 1) mangrove density values at three station points, namely: a) station 1 (0.35); b) station 2; and c) station 3 (0.16); 2) gastropod density values, namely: a) station 1 (3.44); b) station 2 (3.00); c) station 3 (2.81). The highest relative and absolute frequency value of all stations is Littorina Scabra and the lowest is Terrebralia Pallustris. The diversity index value for gastropod species at various stations ranges from 1.00 to 1.45 and the unity index value ranges from 0.25 to 0.31, which is still relatively low. The distribution pattern of gastropods classified as community groups at each station ranged between 2.53-8.53. The results of the Principle Component Analysis show that gastropods at each station are influenced by environmental factors (Hydro Oceanography).