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:
“Cows wandered through the streets.... Vegetables grew chiefly in cans, and stream-beds and cañons glittered with these omnipresent signs of civilization.”
—Administration in the State of Colo, U.S. public relief program (1935-1943)
“The family is in flux, and signs of trouble are widespread. Expectations remain high. But realities are disturbing.”
—Robert Neelly Bellah (20th century)
“It is one of the signs of the times. We confess that we have risen from reading this book with enlarged ideas, and grander conceptions of our duties in this world. It did expand us a little.”
—Henry David Thoreau (1817–1862)