Seasonal occurrence of Perkinsus spp. and tissue distribution of P. olseni in clam (Soletellina acuta) from coastal waters of Wuchuan County, southern China

Seasonal occurrence of Perkinsus spp. infection in the wild clam, Soletellina acuta, along the coast of Wuchuan County, southern China was investigated over one year using conventional polymerase chain reaction (PCR) method combined with sequencing technique. The tissue distribution of P. olseni in (S. acuta) was also compared among four tissues, namely the gill, mantle, … Continue reading Seasonal occurrence of Perkinsus spp. and tissue distribution of P. olseni in clam (Soletellina acuta) from coastal waters of Wuchuan County, southern China

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Validation of housekeeping genes for quantitative mRNA expression analysis in OsHV-1 infected ark clam, Scapharca broughtonii

Highlights • Previous studies of housekeeping genes selection in mollusc species were reviewed. • Ten candidate housekeeping genes were assessed in ark shell under given conditions. • RL7 and EF-1a were the most stable genes across tissues in ark shells. • RL15 appeared more stable than others under a variety of given conditions. • 18s … Continue reading Validation of housekeeping genes for quantitative mRNA expression analysis in OsHV-1 infected ark clam, Scapharca broughtonii

Impacts of predators, habitat, recruitment, and disease on soft-shell clams Mya arenaria and stout razor clams Tagelus plebeius in Chesapeake Bay

Soft-shell clams, Mya arenaria, and razor clams, Tagelus plebeius, in Chesapeake Bay have declined since the 1970s, with severe declines since the 1990s. These declines are likely caused by multiple factors including warming, predation, habitat loss, recruitment limitation, disease, and harvesting. A bivalve survey in Chesapeake Bay examined influential factors on bivalve populations, focusing on … Continue reading Impacts of predators, habitat, recruitment, and disease on soft-shell clams Mya arenaria and stout razor clams Tagelus plebeius in Chesapeake Bay

Transcriptome-based identification of the optimal reference genes as internal controls for quantitative RT-PCR in razor clam (Sinonovacula constricta)

Quantitative real-time PCR (qRT-PCR) is a standard method to measure gene expression in function exploring. Accurate and reproducible data of qRT-PCR requires appropriate reference genes, which are stably expressed under different experimental conditions. However, no housekeeping genes were validated as internal controls for qRT-PCR in Sinonovacula constricta. In this study, we classified the transcriptome data … Continue reading Transcriptome-based identification of the optimal reference genes as internal controls for quantitative RT-PCR in razor clam (Sinonovacula constricta)

High parasite burden increases the surfacing and mortality of the manila clam (Ruditapes philippinarum) in intertidal sandy mudflats on the west coast of Korea during hot summer

Background Over the past few decades, mass mortality events of Manila clams have been reported from several tidal flats on the west coast of Korea during hot summers. During such mortality events, once clams simultaneously surface, they fail to re-burrow, perishing within a week. The present study aimed to identify the possible causes of the … Continue reading High parasite burden increases the surfacing and mortality of the manila clam (Ruditapes philippinarum) in intertidal sandy mudflats on the west coast of Korea during hot summer

Prevalence of Marteilia spp. in thirteen shellfish species collected from China coast

Marteilia spp. is listed as a notifiable parasite by the Office International des Epizooties (OIE), and cause physiological disorders and eventually death of the shellfish. Little is known about the prevalence of Marteilia spp. in shellfish of China. Therefore we investigated the prevalence of Marteilia spp. in 13 species of shellfish collected in the coastal … Continue reading Prevalence of Marteilia spp. in thirteen shellfish species collected from China coast

VIVALDI, Preventing and mitigating farmed bivalve diseases, HORIZON2020

The overarching goal of VIVALDI is to increase the sustainability and competitiveness of the European shellfish industry by improving the understanding of bivalve diseases and by developing innovative solutions and tools for the prevention, control and mitigation of the major pathogens affecting the main European farmed shellfish species: Pacific oyster (Crassostrea gigas), mussels (Mytilus edulis … Continue reading VIVALDI, Preventing and mitigating farmed bivalve diseases, HORIZON2020