U. S. BUREAU OP FISHERIES 

 Table 7. — Iodine content of sea foods 



Kind of sea food 



Mollusks: 



Clams, hard ( Venus mercenaria) 



Oysters (Ostren elongata Solander ') - 



Oyster juice from "selects" 



Scallops, giant {Pecten grandis).- -- 



Crustaceans: 



Crabs, blue ( Cnllinectes sapidus): 



Soft, whole - --- 



Meat flakes 



Lobster (Homarus americamis) ._ --- 



Shrimp (,Peneus setiferus), headed 



Marine fish: 



Bluefish (Pomatomus saltatrix) 



Cod ( Gadus callarias) 



Haddock (^Melanogrammus segleflnus) - 



Halibut (Hippqglossus hippoglossus) 



Mackerel — 



Common (Scomber scombrus) 



Spanish (Scomberomorus maculatus). .- 



Pollock (Pollachius virens) 



Pompano {Trachinotus carolinas) 



Scup (Stenotomus chrysops) 



Spot (Leiostomus xanthurus) _ 



Spotted squeteague (Cynoscion nebulosus) 



Squeteague (Cynoscion regalis) 



Tautog ( Tautoga onitis) __ 



Winter flounder (PseudopleuTonectes americanus)... 



Anadromous fishes: 



Alewives (Pomolobus pseudoharengus), smoked 



Rock (Roccus lineatus) 



Smelt (Osmerus mordax) 



White perch (Morone americana) 



Fresh-water fishes from Lake Erie: 



Cisco, smoked 



Cisco roe, smoked.. 



Lake trout (Salvelinus namaycush) 



Whitefish (Coregonus clupeiformis) 



Fresh-water fishes from the Potomac River: 



Bass, largemouth black (Micropterus salmoides Lac^pfede)-. 



Perch, yellow (Perca flavescens) 



Pickerel, eastern (Lucius reliculatus LeSueur) 



Fresh-water fishes from the Mississippi River at Fairport, Iowa: 



Bass, largemouth black (Micropterus salmoides) 



Black bullhead (Ameiurvs melas) 



Bluegill (Lepomis incisor) 



Bowfin (Amiatus calva) 



BuSalofish: 



Bigmouth (Ictiobus cyprinella) 



Razorbaek (Ictiobus bubalus) 



Carp (Cyprinus curpio) 



Carp sucker (Carpiodes difformis) 



Channel catfish (Ictalurus punctatus) 



Drum, fresh-water (Aplodinotus grunniens) 



Gar pike (Lepisosteus osseus) 



Gizzard shad (Dorosoma cepedianum) 



Spotted sucker (Minytrema melanopes).. 



White crappie (Pomoxis annularis) 



Marine mammal: Whale steak, canned 



Fresh substance 



Mg. I per Part 

 kilogram ^>i" 



1.37 

 1.16 

 .12 



.15 



.09 

 .18 

 1.38 

 .45 



.26 

 .24 

 .29 

 .25 



.14 

 .40 

 .12 

 .08 

 .30 

 .59 

 .02 

 .23 

 .27 

 .18 



.26 

 .45 

 .01 

 .42 



.24 

 .27 

 .01 

 .03 



.05 

 .02 

 .07 



.01 

 .01 



.04 

 .02 



.02 

 .02 

 .01 

 .03 

 .01 



(») 



.01 

 .01 



.01 



sper Mg 

 '■■— k'- 



billion 



1,370 



1, ICO 



120 



150 



90 



180 



1,380 



450 



2fi0 

 240 

 290 

 250 



140 

 400 

 120 



80 

 300 

 590 



20 

 230 

 270 

 180 



2fi0 



450 



10 



420 



240 



270 



10 



30 



50 

 20 

 70 



10 

 10 

 40 

 20 



20 

 20 

 10 

 30 

 10 



W 



Water-free sub- 

 stance 



ilog 



I per Parts per 

 ';ram billion 



6.20 



6.00 



3.17 



.81 



.49 



.87 



11.59 



2.25 



1.87 

 1.00 

 1.05 



.83 



.33 

 1.41 

 .90 

 .25 

 .95 

 1.40 

 .08 

 .85 

 1.17 

 .73 



.50 

 2.00 



.07 

 1.42 



.55 

 .87 

 .04 

 .11 



.19 

 .09 

 .30 



.04 



.04 

 .18 

 .08 



.08 

 .08 

 .04 

 .13 

 .04 



W 



.03 



6,200 



6,000 



3,170 



810 



490 



870 



11,590 



2,250 



1,870 



1,000 



1,050 



830 



330 



1,410 



900 



250 



950 



1,140 



80 



850 



1,170 



730 



500 



2,000 



70 



1,420 



550 

 870 

 40 

 110 



190 

 90 

 300 



40 

 40 

 180 

 80 



80 

 80 

 40 

 130 

 40 



(•) 



30 



• Same as Ostrea virginica. 

 > Less than 0.01. 



• Less than 10. 



* Less than 0.04. 



' Less than 40. 



CONCLUSIONS 



The results of the analyses of fish and fishery products agree in 

 the main with those of von Fellenberg. They are, however, some- 

 what lower than those obtained by Bourcet, but are of tlie same order. 

 The reisults of this work, as well as that of von Fellenberg and Bourcet, 

 tend to show that many of the conclusions of Forbes and Beagle 

 were erroneous. There can be no doubt that iodine is to be found 



