The arcid clam Barbatia reeveana contains an intracellular haemoglobin with an unusual structure. First, compared with other intracellular haemoglobins, it is extremely large, with a mol.wt. of 430000 and an s(20,w) of 13.6S. A minor component (mol.wt.=220000; s(20,w)=9.7S) is also present as a probable dissociation product of the major component. Secondly, this haemoglobin has an unusual subun...

Pteriid oysters (Pinctada maxima, Pinctada margaritifera, Pinctada albina, Pteria penguin), rock oysters (Saccostrea glomerata, Saccostrea cuccullata, Saccostrea echinata) and representatives of other taxa (Malleidae, Isognomonidae, Pinnidae, Mytilidae, Spondylidae, Arcidae) from the wild, and 4670 hatchery-reared P. maxima, from northern and Western Australia, were examined for parasites and d...

This study aimed to analyse the environmental quality based on opportunistic taxa and dominant of macrobenthic assemblages, comparing sediment under IMTA-aquaculture reference site, Karimunjawa National Park. Sediments were sampled between May October 2019, in two sampling times at IMTA cages which star pomfret (Trachinotus blochii) tiger grouper (Epinephelus fuscoguttatus) farmed with 3 statio...

The production of Venerupis decussata relies on wild seed collection, which has been recently compromised due to recruitment failure and severe mortalities. To address this issue and provide an alternative source of seed, artificial spawning and larval rearing programs were developed. However, hatchery-based seed production is a relatively new industry and it is still underdeveloped. A major hu...

Xanthone-O-glycosides seem to be characteristic constituents of the Gentianaceae [1]. Various species of the latter have been used in popular medicine both in Europe and the Orient. Thus in the Indian system of medicine, extracts of Canscora decussata and several Swertia species are used in the treatment of certain mental disorders e.g. melancholia. Recently Ghosal et al. [2] performed the phar...