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E-M:/ Amer. Fisheries Soc. Symposium on CAFOs



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Enviro-Mich message from anne.woiwode@sfsierra.sierraclub.org
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One of our colleagues in Missouri attended the 130th Annual American 
Fisheries Society Conference - one day symposium on Concentrated Animal 
Feeding Operations (CAFOs).  Below is the web site with abstracts and some of 
the information he gleaned.  Anglers beware -- this info will likely provide 
some guidance to those concerned about fisheries in the lower half of the 
lower peninsula, where most CAFOs now are found. 
Anne Woiwode

     
View the abstracts at:
http://www.ecu.edu/org/afs/st_louis/CAFOsymposium.htm
     
Lots of talk of nutrient import and mass balance, isotope trading, and fish 
necropsies.   Here's some brief notes from the presentations that didn't 
sail over my head....
     
**Clay-lined lagoons are permitted a certain volume of leakage by rule in 
most states.   That volume equals one million gallons per year from a three 
acre lagoon.
**North Carolina ranks #1 in turkeys, #2 in hogs (580 ops of 5000 head or 
more), and #3 in chickens (675 million per year).
**North Carolina experienced 23 fish kills due to pfiesteria outbreaks from 
1991-1999.
**North Carolina's 'on-farm' mortality totals for swine for 1998 was 1.178 
million animals - a 6% mortality rate.
**A 5000 head swine finishing operation consumes 2180 metric tons (mt) of 
corn and 505 mt of soy annually, requiring 1470 acres of grain production. 
This same operation would produce as waste 55.5 mt of nitrogen and 11.5 mt 
of phosphorus per year.
**Over 90% of the nitrogen and phosphorus contained in grain inputs for 
livestock production in NC's Black & Northeast Cape Fear watersheds are 
imported or 'new' nutrients - nutrients that once imported and consumed, 
stay in those watersheds.
**SW Missouri's Elk River watershed contains 50 million broilers producing 
50,000 tons of litter per year.   Ongoing research by USGS within the Elk 
watershed has found E. coli 0157:H7 in 20% of sites monitored, fecal 
indicators in nearly 83% of sites monitored, and lincomycin (a very powerful 
antibiotic) in 26% of sites monitored.
**Attn: coffeeholics - USGS' national testing network has found caffeine in 
nearly 72% of US sites monitored.
**Chicken litter compost piles typically cook up to 130 degrees F. 
Salmonella can withstand heat up to 140 degrees F.
**Long term monitoring after a large killing spill from a mid-Missouri layer 
operation: Total fish population was recovering by Week 33 - 
Macroinvertebrates were fully recovered by Week 50 - Sport fish were 
returning by Week 82 - But, quality-size sport fish were still not 
re-established in the stream by the end of the monitoring period at Week 241 
(4.5 years later)
**Cattle:  1.28 billion head worldwide.   100 million head in the US.
     


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