FOC Newsletter, Chairman’s Letter, Spring 2007
We are experiencing a full blown Nor’easter today with 40 mile an hour
winds and three inches of rain. I drove up to the Veterans Highway
overpass and once again the road runoff is flowing directly into the
river. On the bright side, we did receive letters from the New York
Governor’s office and the Department of Transportation saying that they
would investigate further.
The biggest news at the Preserve relates to the presence of Infectious
Pancreatic Necrosis (IPN), a highly contagious viral disease of young
fish of the salmonid species. The disease, most characteristically,
occurs in rainbow trout, brook trout, brown trout, and Atlantic and
Pacific salmon. If you will pardon the science lesson, the disease is
transmitted via feces, sexual fluids and urine. Transport water that is
infected, as well as contaminated nets, containers, and other equipment
are often to blame, although the virus can be transported and excreted
by fish-eating birds and mammals. The disease has a wide geographical
distribution; it occurs in most, if not all, major salmon farming
countries of North and South America, Europe, and Asia. It mostly occurs
under intensive rearing conditions in hatcheries or in post-smolt
Atlantic salmon in sea-cages. Susceptibility decreases with increasing
age; fry or fingerlings reach complete resistance to clinical disease in
about four months. The first sign of an outbreak in salmonid fry is
usually a sudden and progressive increase in daily mortalities in the
hatchery, particularly in the faster-growing individuals. Other evidence
includes a corkscrewing, spiral, or whirling swimming motion; darkening
pigmentation; pronounced distended abdomen and pale gills. Hemorrhages
are sometimes present in ventral areas, including ventral fins. The
remedies include destruction of the infected fish or strict isolation of
the outbreak by controlling fish movement and human traffic. Other
measures include reduction of the population density, thorough cleaning
and disinfection of hatchery, and proper carcass disposal (incineration
or lime pit). All these steps will be employed by the DEC and the
Preserve staff. For a more thorough review please look at
www.spaquaculture.com, the source of the above information.
We are anxiously awaiting receipt of the next generation of plans for
the restoration of the Mill and will be meeting with an acclaimed
preservation architect on the restoration and conversion of the ice
house into a library and document storage center. Spring is in the air,
so visit the Preserve: go fishing, ride a horse, go for a jog, enjoy the
bird life, witness the spring growth on the trees. We are so very
fortunate to have this amazing resource at our doorstep.
Sincerely,
Richard Remmer
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