PROPAGATION AND DISTRIBUTION OF FOOD FISHES, 1932 533 



Salmons, Thouts, and Whitefishes (SALMONiDiE) — Continued. 



Black-spotted trout, redtliroat trout {Sabno lewisi). 



Loch Leven trout (Sahno levenensis). 



Lake trout, Mackinaw trout (Cristivomer namaycush) . 



Brook trout (Salvelimis fontinalis) . 



Dolly Varden trout {Salvelinus vialma). 

 Graylings (Thymallid^) : Montana grayling (Thymalhis monlanus). 

 Pikes (Esocid^) : Common pickerel {Esox reticulatus) . 

 SuNFisHEs (Centrarchidae) : 



Crappie (Pomoxis annularis and P. sparoidcs) . 



Largemouth black bass (Micropterus salmoides) . 



Smallmouth black bass {Micropterus dolomieu). 



Rock bass {Aniblopliles rupesiris). 



Warmouth bass, goggle-eye {Chsenobryttus gulosus). 



Bluegill sunfish {Lepomis incisor). 



Green sunfish {Lepomis cyanellus). 



Redbreasted bream {Lepoynis auritus). 



Red-eared sunfish {Lepomis heros) . 



Common sunfish {Lepomis gibbosus). 



Rio Grande perch {Herichthys cyanogiiitatus) . 

 Perches (Percidae) : 



Pike perch {Stizostedion vitreum). 



Yellow perch, ringed perch {Perca flavescens) . 

 White Basses (Serranid^e) : 



White bass {Roccus chrysops). 



Striped bass {Roccus lineatus). 



White perch {Morone americana). 

 Drums (Sci^nidae): Fresh-water drum, lake sheepshead {Aplodinotus grunniens) . 

 Cods (Gadid^) : 



Cod {Gadus callarias). 



Haddock {Melanogrammus seglefinus). 



Pollock {Pollachius virens). 

 Flounders (Pleuronectid^) : Winter flounder, American flatfish. 

 Mackerel (Scombrid^) : Common mackerel {Scomber scombrus). 



OUTPUT 



The distribution for the fiscal year 1932 amounted to 7,073,935,200 

 eggs, irj, and fingerlings from all sources. This output represents a 

 slight regression from that of the previous year, the drop of 47,870,500 

 being a decline of approximately six-tenths of 1 per cent. 



In considering the aggregate output it is essential to analyze the 

 totals with particular reference to the relative status of the various 

 groups, since certain forms of relatively less importance may be 

 handled in extremely large numbers and greatly affect the total, 

 while not exerting any particular bearing upon the true status of the 

 fisheries which are in greatest need of artificial aid. Such analysis is 

 given in subsequent pages, but it is desirable to point out here the 

 relative standing of the main classifications within the above total. 



The aggregate output was divided into game fishes, 1.5 per cent; 

 anadromous species (forms which resort to fresh water for spawning), 

 3.3 per cent; commercial species of interior waters, 17 per cent; 

 marine species, 78 per cent; and approximately 2 per cent consisted 

 of miscellaneous species. The bureau's classification of game fishes 

 includes only those species which are not commercialized and omits 

 several varieties, such as the lake trout and pike perch, which may be 

 quite extensively sought by the angler. On the basis of this classifi- 

 cation the game fishes showed a decline of almost 50 per cent, while 

 the anadromous forms were only slightly below the records of the 

 previous year. The marine species were also produced in smaller 



