Macroalgal Articles & Analysis
17 articles found
In response to a call for proposals by the Advanced Research Projects Agency - Energy (ARPA-E) MARINER program through the U.S. Department of Energy, an international research team under the project name of MacroSystems, primed by Ocean Rainforest, Inc., has been asked to demonstrate the economic and social opportunities of offshore cultivation of seaweeds, specifically a species named ...
A predictable and sustainable supply of macroalgae can only be obtained through cultivation at sea. Macroalgal cultivation activities will take place and create jobs in rural and coastal areas. ...
The purpose of MacroBiotech was to continue development - and prove the technical and commercial viability - of a concept for macroalgae cultivation in the open ocean. Cultivation was here used in the broadest sense and encompasses seeding, cultivation, harvesting and bio-refining. The project aimed to develop efficient methods for these activities, including harvesting methods to achieve storage ...
There is an increasing demand for new sustainable marine sources for products within food, feed, cosmetic, pharmaceutical and the energy sector. The European seaweed – or macroalgae - industry relies on wild harvest and growth is limited by ecological sustainability considerations. But large scale macroalgae cultivation can satisfy this demand. However, macroalgae cultivation needs ...
This case study aims to further develop the cultivation and processing capacity at Ocean Rainforest and identify possibilities for expansion of macroalgal production in other areas of the Atlantic Ocean. The case study will contain: Establishing and proving the feasibility of large scale offshore sustainable macroalgal cultivation with optimized logistics and ...
The MAB4 project focus on cultivating seaweed on a large scale and using it for food and skin products. While running out of farmland, new opportunities show up for growing sea-crops in the oceans. Many seaweed species are highly nutritious and rich in bioactive substances, those can serve as ingredients for food and cosmetics. In Far East, longlines of seaweed – also known as ...
MACRO CASCADE will prove the concept of the cascading marine macroalgal biorefinery. This is a production platform that covers the whole technological chain for processing sustainable cultivated macroalgae biomass – also known as seaweed – to highly processed value added ...
One day in the future, the Pacific Ocean could be home to kilometers of seaweed farms tended by submarine drones and waiting to be turned into fuel. This is the vision of Marine BioEnergy, a start-up backed by the Advanced Research Projects Agency–Energy (ARPA-E). The U.S. government agency is funding the company, along with a handful of related projects, because it views the open ocean as ...
In the present work, Iridaea cordata (IC), a red marine macroalgae, was used as an efficient biosorbent for the removal of crystal violet (CV) and methylene blue (MB) dyes from aqueous solutions. The effects of pH (5, 7, and 9) and IC concentration (1, 3, and 5 g L−1) on the biosorption were studied through a 32 full factorial design. Under the optimal conditions (pH: 7, biosorbent ...
The ability of Sargassum hemiphyllum to remove methylene blue (MB) from aqueous solution was evaluated. Batch experiments were conducted to examine the effects of parameters such as initial pH, contact time, biomass dose and initial dye concentration on adsorption capacity. S. hemiphyllum before and after MB adsorption was characterized by Fourier transform infrared spectroscopy (FT-IR), ...
Sargassum swartzii, marine macro brown alga, showed a high malachite green (MG) biosorption capacity in batch mode of operation. The analytical evidence from Fourier transform infrared spectra confirmed the involvement of amine group in the biosorption of MG and electrostatic interaction type of mechanism was proposed to occur between the amine group of dye and the cationic MG dye ...
On September 3, 2015, the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy’s Bioenergy Technologies Office (BETO) released a Request for Information (RFI) titled “High Yields through Productivity and Integration Research.” BETO is seeking input from industry, academia, and other stakeholders regarding supply systems and services for the cultivation, ...
In the Orbetello lagoon basin there are some intensive land–based fish–farming facilities which contribute to cause a significant cyclic development of the opportunistic chorophycea Ulva laetevirens, and consequent serious decay events in spring and summer. To minimise the nutrients' impact, fish farming was supplied with phytotreatment system. The purpose of this study was to ...
The giant kelp Macrocystis pyrifera forms dense aggregations in rocky subtidal areas along the Chilean coast. Seasonal abundance of seaweed and invertebrate populations associated with kelp forests and control sites without forests were monitored for two years in Southern Chile. Monitoring took place in areas under co–management fisheries administration provision entitled 'Management and ...
Abstract A new, fully-automated, closed-chamber system was developed for measuring photosynthetic activity in aquatic plants, algae, or corals during immersion. The performance of this system, which monitors oxygen exchange, was evaluated both in the laboratory and in situ under natural conditions using the seaweed Laminaria dtgitata. Intact, large individuals were placed inside the chamber and ...
The ability of red (Corallina officinalis L., Porphyra columbina) and green (Codium fragile) marine macroalgae to remove Cd(II) ions from dilute aqueous solutions, mimicking wastewaters with low metal concentrations, was explored. Under pre-established equilibrium conditions, Corallina and Porphyra attained almost complete removal at 1 g/100 mL. Equilibrium sorption isotherms of cadmium were ...
A simple and low-cost method for monitoring macroalgal standing crops in shallow water consists of flying over and photographing the areas in an ultralight aircraft to determine the surface area of macroalgal mats. ...