Some of the representatives from edible seaweeds (Gracilaria verrucosa, Gracilaria corticata, Turbinaria ornate, Sargassum polycystum) Kilinochchi and Kalpitiya in Sri Lanka were investigated for proximate composition (moisture, protein, lipid ash content). The was significantly (p < 0.001) different across seaweed species. In this regard, moisture content (mean ± SD) varied 76.33 0.0% T. or...

Larval behaviors prior to settlement are important for both dispersal and the likelihood that larvae will encounter settlement habitat. The role of endogenous factors such as larval age and size are likely to be important in determining pre-settlement behavior but are less well understood than exogenous factors. In a simple experiment we explored the role of larval age and size on pre-settlemen...

This paper deals with a species-group carniolica of the genus Nacerdes from China. This species-group has seven known species/subspecies in the world and two of them are known from China. Nacerdes (Xanthochroa) arcuata sp. n. is a new species belonging to carniolica group. The species were collected from Anhui (Eastern China, 30°02'17.37"N, 118°50'1.72"E). A key to the species of the species-gr...

Biochemical methane potential of four species of Ulva and Gracilaria genus was assessed in batch assays at mesophilic temperature. The results indicate a higher specific methane production (per volatile solids) for one of the Ulva sp. compared with other macroalgae and for tests running with 2.5% of total solids (196±9 L CH(4) kg(-1)VS). Considering that macroalgae can potentially be a post tre...

Differences with respect to anti-herbivore defense were investigated in invasive and native populations of the seaweed Gracilaria vermiculophylla. Specimens from 6 native populations in East Asia and from 8 populations invasive in Europe and the Mexican Pacific coast were maintained under identical conditions and offered to herbivorous snails from both the native range (Littorina brevicula) and...

Three compounds containing moieties rarely encountered in nature, viz., 3-nonyloxirane-2 carboxylic acid methyl ester (1), 2-chlorododec-2-en-1-ol (2), and 2-chlorododec-2,11-dien-1-ol (3), were isolated from the red alga Gracilaria verrucosa, and their structures were determined by spectroscopic methods.

Phycobilisomes (PBS) are accessory light harvesting protein complexes that directionally transfer energy towards photosystems. Phycobilisomes are organized in a central core and rods radiating from it. Components of phycobilisomes in Gracilaria chilensis (Gch) are Phycobiliproteins (PBPs), Phycoerythrin (PE), and Phycocyanin (PC) in the rods, while Allophycocyanin (APC) is found in the core, an...

This study investigated the effect of Sargassum angustifolium and Gracilaria pulvinata extracts on the growth performance, body composition, antioxidant status and gut microbiota of rainbow trout (Oncorhynchus mykiss) fry. For this purpose, 540 fry of rainbow trout (initial weight 0.23±0.04 g) were distributed in 12 fiberglass tanks. Fish were fed with experimental diets containing 500 mg kg-1 ...

Increasing prevalence of conifer needle pathogens globally have prompted further studies on pathogen identification and a better understanding phylogenetic relationships among pathogens. Several Lophodermella species can be aggressive causing cast in natural pine forests the USA Europe. However, their with other Rhytismataceae historically been based similarities only limited phenotypic charact...