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:
“Mister death who signs papers
then eats
telegraphs simply: Shoot them
then eats”
—Denise Levertov (b. 1923)
“A strong nation, like a strong person, can afford to be gentle, firm, thoughtful, and restrained. It can afford to extend a helping hand to others. It’s a weak nation, like a weak person, that must behave with bluster and boasting and rashness and other signs of insecurity.”
—Jimmy Carter (James Earl Carter, Jr.)
“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)