Morphological and functional characterization of the hemocytes from the pearl oyster Pteria hirundo and their immune responses against Vibrio infections

Hemocyte populations of the pearl oyster Pteria hirundo were characterized at morphological, ultrastructural and functional levels. Three main hemocyte populations were identified: hyalinocytes, granulocytes and blast-like cells. Hyalinocytes were the most abundant population (88.2%) characterized by the presence of few or no granules in the cytoplasm and composed by two subpopulations, large and small hyalinocytes. … Continue reading Morphological and functional characterization of the hemocytes from the pearl oyster Pteria hirundo and their immune responses against Vibrio infections

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Manual of diagnostic tests for aquatic animals

Valid laboratory results are essential for Aquatic Animal Health Services to implement a range of programmes for diagnosis, surveillance and trade. This Manual of Diagnostic Tests for Aquatic Animals (Aquatic Manual) supports Aquatic Animal Health Services to provide effective laboratory testing for pathogenic agents that may adversely affect aquatic animals. (...) The World Organisation for Animal Health … Continue reading Manual of diagnostic tests for aquatic animals

Complete genome sequence of vibrio coralliilyticus 58, isolated from Pacific oyster (Crassostrea gigas) larvae

We report here the complete genome of Vibrio coralliilyticus strain 58, which was originally isolated from inactive Pacific oyster (Crassostrea gigas) larvae in Japan. The assembled genome consisted of two chromosomes and one plasmid. These data will provide valuable information and important insights into the biodiversity of this organism. Hyoun Joong Kim, Ji Hyung Kim, Jin Woo Jun and al., Genome … Continue reading Complete genome sequence of vibrio coralliilyticus 58, isolated from Pacific oyster (Crassostrea gigas) larvae

Bacteriophage therapy for the control of Vibrio harveyi in greenlip abalone (Haliotis laevigata)

Bacteriophage therapy has demonstrated promising results towards the control of bacterial infections within the aquaculture industry as an alternative therapy to antibiotics. This current research describes the efficacy of bacteriophage therapy in controlling vibriosis within abalone (Haliotis laevigata). Two bacteriophages were isolated and used in in vitro assays to determine the effect of each specific … Continue reading Bacteriophage therapy for the control of Vibrio harveyi in greenlip abalone (Haliotis laevigata)

Ancient DNA analysis identifies marine mollusc shells as new metagenomic archives of the past

Marine mollusc shells enclose a wealth of information on coastal organisms and their environment. Their life history traits as well as (palaeo-) environmental conditions, including temperature, food availability, salinity and pollution, can be traced through the analysis of their shell (micro-) structure and biogeochemical composition. Adding to this list, the DNA entrapped in shell carbonate … Continue reading Ancient DNA analysis identifies marine mollusc shells as new metagenomic archives of the past

Distinct immune responses of juvenile and adult oysters (Crassostrea gigas) to viral and bacterial infections

Since 2008, massive mortality events of Pacific oysters (Crassostrea gigas) have been reported worldwide and these disease events are often associated with Ostreid herpesvirus type 1 (OsHV-1). Epidemiological field studies have also reported oyster age and other pathogens of the Vibrio genus are contributing factors to this syndrome. We undertook a controlled laboratory experiment to … Continue reading Distinct immune responses of juvenile and adult oysters (Crassostrea gigas) to viral and bacterial infections

Isolation of Vibrionaceae from wild blue mussel (Mytilus edulis) adults and their impact on blue mussel larviculture

The blue mussel (Mytilus edulis) is known as a robust bivalve species, although its larviculture appears to be highly susceptible to diseases. In this study, we isolated 17 strains from induced mortality events in healthy wild-caught blue mussel adults and demonstrated that they caused between 17% and 98% mortality in blue mussel larvae in a … Continue reading Isolation of Vibrionaceae from wild blue mussel (Mytilus edulis) adults and their impact on blue mussel larviculture