I'm bullish on whirling disease, it's going places.

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http://whirlingdisease.montana.edu/

What is Whirling Disease?
Whirling disease affects fish in the trout and salmon family. By damaging cartilage,
whirling disease can kill young fish directly, or cause infected fish to swim in an
uncontrolled whirling motion. This can make it impossible for them to escape
predators or to effectively seek food.

Whirling disease is caused by a microscopic parasite called Myxobolus cerebralis.
The parasite was introduced to the United States from Europe in the 1950s and
has spread to many streams across the United States. The whirling disease
parasite has been found in wild fish and fish hatcheries in 25 states.

Once established in a stream, the parasite cannot be eradicated, nor can its
worm host, without significantly damaging the ecosystem. Whirling disease
has no known human health effects.


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http://en.wikipedia.org/wiki/Whirling_disease

Myxobolus cerebralis is a myxosporean parasite of salmonids (salmon, trout, and their allies)
that causes whirling disease in farmed salmon and trout and also in wild fish populations. It was
first described from rainbow trout in Germany a century ago, but its range has spread and it
has appeared in most of Europe (including Russia), the United States, South Africa<1> and other
countries. In the 1980s, it was discovered that M. cerebralis needs to infect a tubificid oligochaete
(a kind of segmented worm) to complete its life-cycle.<2> The parasite infects its hosts with its
cells after piercing them with polar filaments ejected from nematocyst-like capsules.

Whirling disease afflicts juvenile fish (fingerlings and fry) and causes skeletal deformation and
neurological damage. Fish "whirl" rather than swim forward, find feeding difficult, and are more
vulnerable to predators. The mortality rate is high for fingerlings, up to 90% of infected populations,
and those that do survive are deformed by the parasite residing in their cartilage and bone.
They act as a reservoir for the parasite, which is released into water following the fish's death.
M. cerebralis is one of the most economically important myxozoans in fish as well as one of the
most pathogenic. It was the first myxosporean whose pathology and symptoms were described
scientifically.<3> The parasite is not transmissible to humans.


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http://abcnews.go.com/Technology/wireStory?id=2974581

Md.: State Workers Spread Trout Disease
Maryland Says State Workers Unwittingly Spread Fish Infection Known As Whirling Disease


CUMBERLAND, Md. Mar 22, 2007 (AP)— State fishery workers unwittingly
spread a fatal fish illness by moving diseased fish from one facility to another,
officials said. The state Department of Natural Resources previously said the
parasite that causes whirling disease, which is fatal to some trout, might have
been spread by mud on the feet of birds or bears.

The agency's discovery of the parasite at rearing stations in Garrett County in
January prompted the destruction of more than 80,000 rainbow and brown trout
that had been earmarked for stocking this spring in Maryland lakes and streams.

The DNR said it has replaced those fish with trout purchased from private hatcheries.

in the late spring.

can i get in the delorean now?

set the time for


oh say


about









100 years ago?