species identification is always important. records of sea urchins and sand dollars species ‎‎(echinodermata, echinoidea) is given from iranian waters. nine species of echinoderms were ‎identified through the study. the species identification was made using morphological ‎characteristics and review of checklist key. nine species were identified here, including ‎echinometra mathaei, prionocidari...

Background & Aims: Sea urchin immune responses are directly exposed to potentially pathogenic microorganisms and develop defence responses mainly based on immunocytes and humoral factors contained in the coelomic fluid. In addition, the polyhydroxylated 1, 4-naphthoquinone pigments are found to possess excellent antimicrobial, antialgal and antioxidant activities. The present ...

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 ...

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 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...