Chaetoceros wighamii Brightwell is a planktonic diatom species originally described from brackish waters. Since its original description, the species has been reported in a wide variety of habitats, ranging from freshwater to marine. Varying descriptions exist in the taxonomic literature and several taxa have been considered as synonyms, including freshwater species Chaetoceros amanita. In this...

Copper (Cu) uptake and trophic transfer in marine plankton at the environmentally relevant levels have rarely been investigated. In this study, we investigated Cu subcellular distribution five phytoplankton ( Isochrysis zhanjiangensis , Phaeocystis sp., galbana, Chaetoceros sp. Phaeodactylum tricornutum ) belonging to two taxa Chrysophyta Bacillariophyta, following rotifer Brachionus plicatilis...

Kabupaten Banyuasin merupakan salah satu kabupaten yang ada di Provinsi Sumatera Selatan, memiliki potensi sumber daya perikanan dan kelautan besar, mencakup tangkap (laut perairan umum). Tujuan dari penelitian ini adalah menentukan jenis – plankton sebagian Pesisir Timur mendeteksi sebaran densitas dengan metode hidroakustik. Pengambilan analisis data telah dilaksanakan pada bulan September 20...

Nutrients are influenced by anthropogenic activities and consequently change the diversity density of phytoplankton. The spatial distribution dissolved inorganic nutrients phytoplankton were determined in river estuary, Kota Kinabalu, Sabah, Malaysia. Samples water collected from six locations estuary during month May 2019 to October 2019. highest abundances 86% diatoms study period. This was f...

Diatoms are a major phytoplankton group that play important roles in maintaining oxygen levels in the atmosphere and sustaining the primary nutritional production of the aquatic environment. Among diatoms, the genus Chaetoceros is one of the most abundant and widespread. Temperature, climate, salinity, nutrients, and predators were regarded as important factors controlling the abundance and pop...

This study was conducted to determine the bacterial composition and its effect on Artemia performance in various biomass culture conditions. Newly hatched franciscana were cultured 1.5L plastic bottles containing 1L of medium, with a density 200 nauplii/L salinity 30 ppt, lasted for three weeks. In first two days after stocking, fed Chaetoceros sp. Afterward, Artemia-formulated feed used as dai...

Four species of microalgae were evaluated at different temperatures for their ability to remove ammonia from intensive marine fish/shrimp culture systems. Growth rates were highest on the first of three days of culturing for marine microalgae Nannochloropsis oculata, Isochrysis aff. galbana, Chaetoceros muelleri, and Tetraselmis chui. This rate was used to compare both the growth and the total ...

Provision of copepod nauplii as food increases larval survival in many fish species that are difficult to rear using standard practices. Gladioferens imparipes is a temperate estuarine calanoid copepod with culture potential. Diets were tested to determine which would maximise copepod production. Copepods were fed five diets: Isochrysis galbana, Chaetoceros muelleri, Dunaliella tertiolecta, Nan...

A research on production of biodiesel from lipid of phytoplankton Chaetoceros calcitrans through ultrasonic method has been done. In this research, we carried out a series of phytoplankton cultures to determine the optimum time of growth and biodiesel synthesis process from phytoplankton lipids. Process of biodiesel synthesis consists of two steps, that is, isolation of phytoplankton lipids and...