منابع مشابه
Scientific Name: Ammi visnaga (L
Description: Annual herb, 30-150 cm high, slightly aromatic stems erect, robust, much branching, cylindrical, furrowed, densely leafy. Leaves alternate , with special odor, with broad leaf sheath, lower leaves pinnate, with narrowlyliner lobes; middle and upper leaves 2-3 pinnate, with filiform lobes. Inflorescence dense umbel with numerous rays( to 120 or more) slender in flower, thickened and...
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Mortalities of oyster Crassostrea gigas seed associated with ostreid herpesvirus OsHV-1 μVar have been observed in many oyster-producing countries since 2008. The present study, comprised of 4 complementary experiments, aimed to identify factors associated with disease-induced oyster mortality in order to propose mitigation strategies. Our first experiment compared survival of oysters from natu...
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Invasion trajectories of introduced alien species usually begin with a long establishment phase of low abundance, often followed by exponential expansion and subsequent adjustment phases. We review the first 26 years of feral Pacific oysters Crassostrea gigas around the island of Sylt in the Wadden Sea (North Sea, NE Atlantic), and reveal causal conditions for the invasion phases. Sea-based oys...
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Ostreid herpesvirus (OsHV) can cause mass mortality events in Pacific oyster aquaculture. While various factors impact on the severity of outbreaks, it is clear that genetic resistance of the host is an important determinant of mortality levels. This raises the possibility of selective breeding strategies to improve the genetic resistance of farmed oyster stocks, thereby contributing to disease...
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ژورنال
عنوان ژورنال: Aquaculture
سال: 2019
ISSN: 0044-8486
DOI: 10.1016/j.aquaculture.2018.08.048