Pemanfaatan lahan rawa Kalimantan Selatan sebagai perumahan sekarang banyak dilakukan, sehingga memberikan dampak pada organisme perairan seperti mikroalga. Mikroalga merupakan alga mikroskopis yang umumnya hidup di seluruh wilayah baik air tawar maupun laut. Materi kelas X SMA cenderung sulit dan abstrak, diperlukan media pembelajaran berbasis lokal untuk mempermudah pemahaman siswa. Penelitia...

Predation is one of the strongest selection pressures phytoplankton has evolved strategies to cope with. Concurrently, growth must deal with resource acquisition. Experiments on mono- and mixed cultures morphologically different diatoms exposed copepods were performed assess if size shape primary drivers in avoiding predation. Additionally, frustule silicification was investigated as a potentia...

The in vitro total antioxidant assay, total phenolic content, DPPH assay, FRAP assay of the acetone extracts from four centric diatoms (Chaetoceros simplex, Skeletonema costatum, Odontella mobiliensis, Coscinodiscus centralis) and three pennate diatoms (Nitzschia closterium, Pleurosigma angulatum and Navicula sp.) were performed. The centric diatom, O. mobiliensis was found higher amount of phe...

Polychlorinated biphenyls (PCBs), similar to DDT in structure and physiological effects (7), are of concern to the scientific community because of their ubiquity (8), persistence (11) and possible toxicity. The alleged lack of biodegradability of this environmental pollutant has caused alarm and curtailment of this useful chemical. Work as early as 1963 by Cope (3) indicated that DDT, another c...

In this paper, an antifouling hydrogel coating of slippery hydrogel-released hydrous surface (SHRHS) with the self-cleaning ability of oil-resistance and self-regeneration characters was designed. A physical blending method of loading Sodium polyacrylate (PAAS) powder into the organic silicon resin was employed to prepare the SHRHS coating. The oil-resistance of the intact and scratch SHRHS coa...

Freshwater ecosystems are subject to anthropogenic contaminants. This study aimed at assessing waste management stratagem by the local population and implications on water abiotic variables as well phytoplankton species richness of Ndongo stream, South-West Cameroon. For this purpose, 144 structured questionnaires were randomly administered inhabitants around stream assess wastes practices. Wat...