Wastewater effluent from aquaculture ponds can affect aquatic ecosystems. To mitigate this problem, we designed 2 sets (southern and northern) of land-based and farm-scale sequential integrated multi-trophic aquaculture (IMTA) systems in order to reduce water pollution and to diversify and optimize aquaculture products in coastal southern Taiwan. In each system, the 1st pond cultivated milkfish...

The main aim of the study was to evaluate the various minerall and heavy metals parameters of seaweeds present in the south coastal line. The five red seaweeds namely Acanthophora deliei, Scinaia furcellata, Porphyra tenera, Gracilaria verucosa and Hypnea species were collected from the Pamban, South east coast India. These samples were analyzed for its mineral contents such as sodium, potassiu...

OBJECTIVE To isolate the active fraction from crude extract of Gracilaria changii and to determine its in vitro antifungal activity. MATERIALS AND METHODS The active fraction was isolated from the crude extract of G. changii by various purification procedures such as column chromatography, thin layer chromatography, bioauthograph etc. The in vitro antifungal activity (Candida albicans) of the...

Potential antioxidant properties of an aqueous extract of the edible red seaweed Gracilaria tenuistipitata (AEGT) against oxidative DNA damage were evaluated. The AEGT revealed several antioxidant molecules, including phenolics, flavonoids and ascorbic acid. In a cell-free assay, the extract exhibited 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity that significantly reduced H₂...

Congracilaria babae was first reported as a red alga parasitic on the thallus of Gracilaria salicornia based on Japanese materials. It was circumscribed to have deep spermatangial cavities, coloration similar to its host and the absence of rhizoids. We observed a parasitic red alga with morphological and anatomical features suggestive of C. babae on a Hydropuntia species collected from Sabah, E...

Biomechanical pull-tests were used to determine if thallus size and substrate type affect break force and break location of six macroalgal species (Ulva curvata, Gracilaria verrucosa, Gracilaria foliifera, Agardhiella subulata, Fucus vesiculosus and the alien Codium fragile) from a low-energy soft-bottom lagoon in Virginia, USA. Both small and large individuals of all six species incorporated i...

In recent years seaweeds have increasingly attracted interest in the search for new drugs and have been shown to be a primary source of bioactive natural compounds and biomaterials. In the present investigation, the biochemical composition of the red seaweed Gracilaria gracilis, collected seasonally in the Lesina Lagoon (Southern Adriatic Sea, Lesina, Italy), was assayed by means of advanced an...

BACKGROUND Marine environment is inestimable for their chemical and biological diversity and therefore is an extraordinary resource for the discovery of new anticancer drugs. Recent development in elucidation of the mechanism and therapeutic action of natural products helped to evaluate for their potential activity. METHODS We evaluated Gracilaria edulis J. Ag (Brown algae), for its antitumor...