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To: presidio9
Uh-huh. And how does this mesh with the articles about the studies telling people to limit amount and kinds of fish they eat because of mercury? Tuna is one of the fish listed to limit due to concern over mercury poisoning.
12 posted on 07/21/2003 2:31:00 PM PDT by .38sw
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To: .38sw
Uh-huh. And how does this mesh with the articles about the studies telling people to limit amount and kinds of fish they eat because of mercury? Tuna is one of the fish listed to limit due to concern over mercury poisoning.

Know your fish, I would not eat Tuna steaks everyday if I was pregnant and no White Snapper, Shark, Marlin or Swordfish. The fish we eat that comes from large mature fish contains more mercury than smaller young fish. Sardines are various species of small herrings, pilchards and related fish.


U. S. Food and Drug Administration
Center for Food Safety and Applied Nutrition
Office of Seafood
May 2001


Mercury Levels in Seafood Species

The following tables provide the mean and range of mercury levels in a variety of fish and shellfish

Table 1
Fish With Highest Mercury Levels
 SPECIES   MEAN (PPM)   RANGE (PPM)   NO. OF SAMPLES 
Tilefish 1.45 0.65-3.73 60
*Swordfish 1.00 0.10-3.22 598
King Mackerel 0.73 0.30-1.67 213
*Shark 0.96 0.05-4.54 324

Table 2
Fish and Shellfish With Much Lower Mercury Levels
 SPECIES   MEAN (PPM)   RANGE (PPM)   NO. OF SAMPLES 
Grouper (Mycteroperca) 0.43 0.05-1.35 64
Tuna (fresh or frozen) 0.32 ND-1.30 191
*Lobster Northern (American) 0.31 0.05-1.31 88
Grouper (Epinephelus) 0.27 0.19-0.33 48
*Halibut 0.23 0.02-0.63 29
*Sablefish 0.22 ND-0.70 102
*Pollock 0.20 ND-0.78 107
*Tuna (canned) 0.17 ND-0.75 248
*Crab Blue 0.17 0.02-0.50 94
*Crab Dungeness 0.18 0.02-0.48 50
*Crab Tanner 0.15 ND-0.38 55
*Crab King 0.09 0.02-0.24 29
*Scallop 0.05 ND-0.22 66
*Catfish 0.07 ND-0.31 22
*Salmon (fresh, frozen or canned) ND ND-0.18 52
*Oysters ND ND-0.25 33
*Shrimps ND ND 22

Table 3
Fish With Methylmercury Levels Based on Limited Sampling


Data presented in Table 3 are based on limited sample sizes and therefore have a much greater degree of uncertainty
 SPECIES   MEAN (PPM)   RANGE (PPM)   NO. OF SAMPLES 
*Red Snapper 0.60 0.07-1.46 10
Marlin 0.47 0.25-0.92 13
Moonfish 0.60 0.60 1
Orange Roughy 0.58 0.42-0.76 9
Bass Saltwater 0.49 0.10-0.91 9
Trout Freshwater 0.42 1.22 (max) NA
Bluefish 0.30 0.20-0.40 2
Croaker 0.28 0.18-0.41 15
Trout Seawater 0.27 ND-1.19 4
*Cod (Atlantic) 0.19 ND-0.33 11
Mahi Mahi 0.19 0.12-0.25 15
*Ocean Perch 0.18 ND-0.31 10
Haddock (Atlantic) 0.17 0.07-0.37 10
Whitefish 0.16 ND-0.31 2
Herring 0.15 0.016-0.28 8
*Spiny Lobster 0.13 ND-0.27 8
Perch Freshwater 0.11 0.10-0.31 4
Perch Saltwater 0.10 0.10-0.15 6
Flounder/Sole 0.04 ND-0.18 17
*Clams ND ND 6
Tilapia ND ND 8
*Fish and shellfish among the most consumed of the domestic seafood market

Sources of methylmercury data:

FDA database FY 85-99
EPA Mercury Study Report to Congress, 1997
A Survey of the Occurrence of Mercury in the Fishery Resources of the Gulf of Mexico Report (2000)
NMFS 1976, 1978 Report

21 posted on 07/21/2003 3:38:01 PM PDT by this_ol_patriot
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