Abstract The diversity of native oysters in many regions is overshadowed by the global dominance a few economically important species. Here we describe Muar Oyster, Crassostrea (Magallana) saidii sp. nov., first reported as an established local fishery renowned for exceptional and distinctive flavour over 160 years ago British colonial officials Malaysia, but yet never formally named or describ...

Ray's fluid thioglycollate medium (RFTM) culture assay is the standard, recommended method for surveillance of Perkinsus spp. infections in marine molluscs. In this assay, shellfish tissues are incubated in RFTM, stained with Lugol's iodine solution to render Perkinsus spp. cells blue-black, and evaluated microscopically to rate infection intensities. A limitation of this assay, however, is the...

Scientific names: Crassostrea gigas (Thunberg 1793), Ostreidae, Bivalvia Synonyms: Gryphaea angulata Lamarck 1819; Ostrea gigas Thunberg 1793; Ostrea laperousii Schrenk 1861; Ostrea talienwhanensis Crosse 1862. Note: The Portuguese oyster Crassostrea angulata is a name often used for this species. According to genetic studies it was shown that Crassostrea angulata is likely a strain of Crassost...

Along the Indian coast, oysters were identified and studied since the beginning of the 20th century. One of the first records on the taxonomy of Indian oysters is by Hornell (1910) [2]. Since then a series of reports on the taxonomy of Indian oyster were made[1,3,4-9]. Originally the Indian oysters were referred to under the genus Ostrea but was later included under the genus Crassostrea. Anoth...

A Perkinsus species was isolated from the baltic clam Macoma balthica and an in vitro culture established under conditions described for P. marinus. As reported previously, morphological features remarkable enough to clearly indicate that this isolate is a distinct Perkinsus species were lacking. In this study, regions of the rRNA locus (NTS, 18S, ITS1, 5.8S, and ITS2) of this isolate were clon...

A quantitative competitive polymerase chain reaction (QCPCR) assay was developed for the oyster parasite Perkinsus marinus. PCR primers for the rRNA gene region of P. marinus amplified DNA isolated from P. marinus but not from Perkinsus atlanticus, Crassostrea virginica, or the dinoflagellates Peridinium sp., Gymnodinium sp., or Amphidinium sp. A mutagenic primer was used to create a competitor...