American Fisheries Society 69 



sii^nificant, compared \\ilh the economic ^■allle of the re- 

 searches coming" within the scope of this dix'ision. I would 

 respectfully sugg'est that the amount of mone}' made avail- 

 able annually for such investigations be greatly increased, 

 and that the program of the work be made to include more 

 extended studies of the same character as those engaged in 

 by such 1)acteriologists and pathologists as are mentioned in 

 the bibliography hereto attached. Any fish culturist present 

 can readily suggest suljjects of study, and all fish culturist s 

 will be grateful for the information which is sure to result 

 from these acti\'ities. 



Cir.LTOGRAPlIY. 



CiiAKLKS G. Atkins. — Salmon diseases. Manual cf Fish Cutlurc, U. .S. 

 F. C, 1900. pp. 52-56. 



Refers to white spots on eggs, apparently vegetahle parasites ; 

 white spots in the sac, an uncontrollable disease. Salt and mud 

 were tried as remedies, but without permanent lienefit. Fungus 

 (Saprolegnia) attacks eggs and fish. Salt bath for the fry was 

 beneficial. Artificial shade might also be helpful. 



Takletox H. Beax. — Fish Diseases. Twelfth Ann. Rep. N. Y. F. F. 

 & G. Com., pp. 129-130 and pp. 131-142, 1907. 



Describes an undetermined bacterial disease which destroys the 

 eyes of trout perch, yellow perch, black bass and other fish of im- 

 mature age. Translations are given from the German of Dr. 

 Hofer on the ulcer disease of the brown trout, the spot disease of 

 the brook trout, the red plague of the carp-like fishes, the scale 

 disease of the whitefishes such as ide, rudd and carp, and the red 

 plague of the eel. The above also issued as a separate in which the 

 notes appear on pp. 52-53 and 54-65. See also the Thirteenth Ann. 

 Rep. of the same connnission pp. 112 and 124-125, or the author's 

 separate, pp. 39 and 51-52, 1908. 



Gakv X. Calkins. — Report upon the recent epidemic among brook trout 

 (SalvcUnns foiitiiialis) on Long Island. Fourth Ann. Rep. N. Y. 

 F. F. & G. Comm. for 1898, pp. 175-190, pi. i-viii, figs. 1-7. 



A very clear and valuable account of this parasitic disease, due 

 to Lyiiipliosporidiimi truttce, a sporozoan classed among the most 

 destructive of the fish parasites, causing extremely fatal epidemics 

 among brook trout of all ages. The fish may not be the original 

 host of the parasite. Similar organisms are found in the body 

 cavities of various Crustacea (Dapliiiia. Gaimiiants. Cypris several 

 species ) . The trout may swallow the form containing this pro- 

 tozoan. Recommends the destruction of all diseased fish by burial 

 or burning, draining the ponds and exposing them to the sun for 

 a few months, scrul)l)ing the runways and removing all growths ; 

 avoid interbreeding with the diseased fish, keep the water perfectly 

 clean and cold, sustain the vitality of the lish, watching for and 

 removing fungoid growths, avoid constant intrrlireeding 1)y fre- 

 quently introducing new blood, inspect the food carefully and do 

 not allow it to stand exposed to flies and other insects Init have it 

 fresh. 



