Phytohormones are present in seaweeds but little is known about occurrence and content of them in seaweeds of Persian Gulf. The aim of this study was extraction of abscisic acid and gibberellin in Sargassum muticum and Gracilaria corticata. The seaweeds were collected bimonthly over one year at Bushehr coasts, Persian Gulf, during a range of environmental conditions. We explored new HPLC method...

We investigate the survivorship, growth and diet preferences of hatchery-raised juvenile urchins, Tripneustes gratilla, to evaluate the efficacy of their use as biocontrol agents in the efforts to reduce alien invasive algae. In flow-through tanks, we measured urchin growth rates, feeding rates and feeding preferences among diets of the most common invasive algae found in Kāne'ohe Bay, Hawai'i:...

This study investigated the use of a combined formula artificial feed and fresh marine algae Gracilaria sp in submerged cage culture system its effect on Haliotis squamata relative growth survival rates. The experiment was performed Lae-Lae Island, Makassar from May to October 2016. sample Abalone juvenile larvae were 1.5 cm size stocked at density 30 pcs/cage. x 15 7 equipped with 2-inch Paral...

Division of Marine Science and Conservation, Nicholas School of the Environment, Duke University, Beaufort, NC 28516; Department of Biology andMarine Biology, University of North Carolina Wilmington, Wilmington, NC 28403; Marine Ecology Research Group, School of Biological Sciences, University of Canterbury, Christchurch 8041, New Zealand; and Oceans Institute and School of Plant Biology, Unive...

Seaweed cultivation is a high growth industry that is primarily targeted at human food and hydrocolloid markets. However, seaweed biomass also offers a feedstock for the production of nutrient-rich biochar for soil amelioration. We provide the first data of biochar yield and characteristics from intensively cultivated seaweeds (Saccharina, Undaria and Sargassum--brown seaweeds, and Gracilaria, ...

In the fish farming business, feed is highest operational cost, which reaches more than 60% of total production cost. Therefore, can be processed independently to reduce costs in aquaculture businesses. This study aimed determine survival rate and efficiency red tilapia (Oreochromis sp) fed artificial with addition seaweed (Gracilaria sp). research was carried out from June September 2021 at In...