Signs
Infection with Aphanomyces astaci is accompanied by few signs in its early stages, and the first indication of infection may be mortality. In the later stages, the muscles of the tail may appear whitened, or brownish-red where blood cells have encapsulated the hyphae. The effects of the neurotoxins in the oömycete can include appearing in daytime (crayfish are typically nocturnal) and a lack of co-ordination.
Read more about this topic: Crayfish Plague
Famous quotes containing the word signs:
“They lock me in this chair at eight a.m.
and there are no signs to tell the way,
just the radio beating to itself
and the song that remembers
more than I.”
—Anne Sexton (1928–1974)
“The signs look better. The Father of Waters again goes unvexed to the sea. Thanks to the great North-West for it. Nor yet wholly to them.... The job was a great national one.”
—Abraham Lincoln (1809–1865)
“Superfluous lags the veteran on the stage,
Till pitying Nature signs the last release,
And bids afflicted worth retire to peace.”
—Samuel Johnson (1709–1784)