The oyster microbiome is thought to contribute to the pathogenesis of mass mortality disease in Pacific oysters, associated with OsHV-1. As filter-feeders, oysters host a microbiota that can be influenced by the estuarine environment. This may alter susceptibility to OsHV-1 infections, causing variable mortality. This study aimed at: (1) differences in the microbiome of Pacific … Continue reading Influence of environment on the pathogenesis of Ostreid herpesvirus-1 (OsHV-1) infections in Pacific oysters (Crassostrea gigas) through differential microbiome responses
The pustulose ark, Anadara tuberculosa, is considered as an emblematic species of the east Pacific mangrove ecosystem. The decline of its populations is of increasing preoccupation, in particular in Peru. The use of hatchery-produced larvae for stock enhancement or aquaculture is attractive but raises strong criticisms from an ecological point of view, as it could … Continue reading Production of specific pathogen-free larvae from genetically characterized populations of Anadara tuberculosa (Bivalvia), for stock enhancement and aquaculture in the Peru Northeast Biosphere Reserve
The final conference of the VIVALDI project will take place in Brest, from 26 to 28 November 2019. 26-27 November will consist in a Scientific congress dedicated to VIVALDI's research results. Registration is compulsory, before 9 November 2019. More information here.
Bivalve aquaculture accounts for 14%–16% of the average per capita animal protein of 1.5 billion people, supporting more than 200,000 livelihoods, mostly in developing countries. Massive mortality outbreaks of various cultured bivalves have been reported worldwide. Repeated episodes of mass mortality not only reduce the production and cause high economic losses but also have a … Continue reading Extrinsic factors and marine bivalve mass mortalities: an overview
Macroautophagy is a mechanism that is involved in various cellular processes, including cellular homeostasis and innate immunity. This pathway has been described in organisms ranging in complexity from yeasts to mammals, and recent results indicate that it occurs in the mantle of the Pacific oyster, Crassostrea gigas. However, the autophagy pathway has never been explored … Continue reading A study of autophagy in hemocytes of the Pacific oyster, Crassostrea gigas
Highlights • Infectious diseases are a major obstacle for the growth of aquaculture industries. • Shifting environmental conditions are important triggers of oyster diseases. • The microbiome is emerging as a possible contributor to the oyster disease process. • Here we review current oyster microbiome studies in the context of disease. William L. King, Cheryl … Continue reading Oyster disease in a changing environment: Decrypting the link between pathogen, microbiome and environment
Bivalve mollusks thrive in environments rich in microorganisms, such as estuarine and coastal waters, and they tend to accumulate various particles, including viruses. However, the current knowledge on mollusk viruses is mainly centered on few pathogenic viruses, whereas a general view of bivalve-associated viromes is lacking. This study was designed to explore the viral abundance … Continue reading A needle in a haystack: tracing bivalve-associated viruses in high-throughput transcriptomic data