Bulu Babi (Echinometra mathaei) atau landak laut dalam Bahasa Inggris disebut sea urchin memiliki kandungan senyawa bioaktif yang bersifat toksik. Penelitian ini bertujuan untuk menganalisis metabolit sekunder pada ekstrak etanol 70% Echinometra mathaei dengan menggunakan analisis FTIR Tahapan penelitian meliputi determinasi, ekstraksi, uji organoleptis, makroskopis, dan FTIR. Determinasi sampe...

Abstract : Sea urchin (Echinometra mathaei) contains a compound of Echinochrome A, which is polyhydroxy naphthoquinone that known to be potential antioxidant. The antioxidant effect correlated with the antidiabetic activity associated oxidative stress conditions. aim this study was determine 70% Ethanol Extract sea on blood glucose levels in alloxan induced rats. This research an experimental u...

The number of valid species in the genus Echinometra (Echinodermata, Echinoidea) and their associated identification keys have been debated in the scientific literature for more than 180 years. As the phylogeny and dispersal patterns of these species have been widely used as a prominent model for marine speciation, new insights into their taxonomy have the potential to deepen our understanding ...

This study sought to understand short-term spatial changes in accretion and erosion on (experimental) carbonate blocks on three coral reefs of the Ryukyu Islands, Japan. The principal objectives were to differentiate net accretion/erosion according to season, location, depth and substrate-type. At all locations the summer season showed more positive net weight changes and higher coralline algal...

Significant differences in adult morphology, ecology, molecular phylogeny, mtDNA and loci coding for gamete recognition molecules have been combined to map the boundaries of four closely related Echinometra species occur abundantly all over the tropical Pacific. These species have recently been designated as Echinometra A, B, C and D [1– 11]. Consequently, mitochondrial DNA sequence data show t...

The sea urchin Echinometra mathaei is the most abundant herbivore on many tropical reefs. We studied the ingestion and digestion diel rhythms, transformation of algal turf and bioerosion attributable to this species on the Tiahura fringing reef in French Polynesia. Ingestion rates showed a circadian rhythm with most feeding taking place during the night. Absorption of food occurred throughout t...

Two species of sea urchins (Colobocentrotus atratus and Echinometra mathaei) commonly co-occur on wave-swept intertidal shores in the Indo West Pacific. E. mathaei is a typical spiny urchin and is confined to cavities in the rock. In contrast, C. atratus has an unusual morphology, in which the spines are much reduced, and is found on substrata fully exposed to wave-induced velocities and accele...

This study explores both the direct effects of ocean acidification on early embryology and the indirect effects of a low pH environment on the embryos ability to expel toxins through membrane-bound transporters. This work was done on three different species of sea urchins, Strongylocentrotus Purpuratus, Tripneustes gratilla, and Echinometra mathaei, each collected at a different location (Monte...