Sea Water Quality Assessment Based on Tidal Condition in Sawaibu Bay Manokwari

Abstract

Sanggeng traditional market that located in the coastal area of Manokwari city as a community trade center which providing daily community needs. Generally, the commodities that available are either household need, fish market and agriculture products, in addition due to market location in the city center it effects to highly community activities. Thus, effect to uncontrolled organic waste is source from mainly agricultural product, fishes, and also from others organic products. This condition is happening in highly intensity and still continues everyday, so it could affect to waters environmental degradation. Indicator that used to assessing water quality degradation based on highly organic waste is by assessed organic concentration then comparing with KLH 51 year 2004. Based on result of turbidity and dissolved oxygen parameter was found that highly condition at BLK location. In addition, highest TSS and TOM was found at waters around of hadi Mall. Highest BOD5 concentration was found in around of Fish market waters. Tides factor also effected to physical and chemical distribution in these waters. This condition shows that organic waste impact to water quality at Sawaibu Bay could affect to waters organisms’ life

Intensive Litopenaeus vanamei pond performance with irrigation system based on Distribution of Vibrio spp.

“…The abundance of bacteria at high tide is lower than at low tide (Figure 2, 3, 4, and 5). Maslukah et al (2014) and Sembel and Manan (2018) state that tides can affect the presence of organic material which will then have an impact on fluctuations in the abundance of bacteria in seawater. The pattern of tidal currents which has an alternating pattern will affect the pattern of distribution and supply of organic material originating from the river.…”

Hubungan parameter lingkungan dengan morfometrik daun mangrove jenis Rhizophora mucronata pada kawasan mangrove Desa Labuan Tereng Kabupaten Lombok Barat

“…Nilai pH yang tinggi diduga disebabkan oleh kondisi perairan yang sedang pasang dan rendahnya nilai pH pada plot 16 diduga disebabkan oleh pengukuran yang dilakukan pada saat kondisi air laut surut. Hal tersebut sesuai dengan pernyataan Sembel & Manan (2018) yang mengatakan kondisi perairan surut mengakibatkan pH lebih rendah dibandingkan saat pasang dimana disebabkan oleh banyaknya masukan bahan organik dan air tawar dari daratan.…”

Analisis Kandungan Logam Berat Kadmium (Cd) pada Gastropoda Conus spp. di Hamparan Lamun Perairan Pesisir Manokwari, Propinsi Papua Barat

“…Perairan Pesisir Manokwari merupakan salah satu wilayah pesisir yang mengalami perkembangan kegiatan pembangunan yang sangat pesat dari tahun ke tahun (Sembel & Manan, 2018). Pesatnya pembangunan mengakibatkan munculnya berbagai masalah seperti terjadinya pencemaran limbah bahan berbahaya dan beracun, misalnya pencemaran logam berat (Sembel et al, 2019).…”

“…Tingginya kandungan logam berat kadmium di stasiun BLK dapat diduga karena masukan logam di stasiun BLK lebih besar karena merupakan daerah permukiman penduduk dan berdekatan dengan pusat kota, dibandingkan stasiun Pulau Lemon dan stasiun Tanjung Manggewa sehingga logam yang mengendap di sedimen juga lebih tinggi. Tingginya logam berat kadmium dapat bersumber dari kegiatan aktivitas yang berada di sekitar Teluk Doreri, seperti pelabuhan, pengecetan kapal, pembuangan air ballast, docking kapal, plastik, cat dan pipa air serta pengisian bahan bakar yang mampu memberi kontribusi logam berat ke perairan (Sembel et al, 2019;Sembel & Manan, 2018).…”