. Kalifornien Fisch und Wild. Fischerei - Kalifornien; Spiel und Spiel - Vögel - Kalifornien; Fische - Kalifornien; Tier Bevölkerungsgruppen; Pêches; Gibier; Poissons. Abb. 37. A: Magen Inhalt von 18 Blaue See Forelle fing - erliii {?s (:! ,^) cm.) September 1940. B: Magen Inhalt 17 Blue Lake Minnows, Rhinichthys osculaj genommen Juli 1941. Junge Forellen für Lebensmittel. In diesem Zusammenhang erhebliche Überlappungen gefunden wurde zwischen der Nahrung der minnows und von Forellen fingerlings in Blauer See zu kommen. Eine Reihe von jungen Forellen, 3 bis 5 cm lang, wurde von den rund um die Ufer des Sees im September seined

• Bildanbieter: Book Worm / Alamy Stock Foto
• Bild-ID: RG5754
• Dateigröße: 7,1 MB (197,2 KB Komprimierter Download)
• Freigaben (Releases): Model - nein | Eigentum - nein
• Format: 1646 x 1517 px | 27,9 x 25,7 cm | 11 x 10,1 inches | 150dpi

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. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. Fig. 37. A: Stomach contents of 18 Blue Lake trout fing-erliii{?s (:! to , ^) cm.) taken September, 1940. B: Stomach contents of 17 Blue Lake minnows, Rhinichthys osculaj taken July, 1941. young trout for food. In this connection, a considerable overlap was found to occur between the food of minnows and of trout fingerlings in Blue Lake. A series of young trout, 3 to 5 cm. long, was seined from around the shore of the lake in September of 1940, shortly after they had been introduced from the hatchery. The results of the analysis of the food in their stomachs is given in Figure 37-A. The series of minnows which was taken at the same time for comparison of feeding habits was not well enough preserved for study, but another series, taken in mid- summer of 1941, was studied, and the results will be found in Figure 37-B, While neither the young trout nor the minnows provide sufficiently extensive series for a reliable index of their foods during the summer, they nevertheless do show, with- out question, that the minnows eat the sort of thing upon which the small trout were feeding, and ]:)robably compete severely with them. The paucity of organisms in the littoral zone of Blue Lake has been pointed out. Stomachs from 61 trout, 30 to 50 cm. long, were collected at Heenan Lake in 1941, between mid-June and mid-September. They were consistently alike over that period, and have all been lumped together into a single stomach contents of 61 Heenan Lake SCricS. The rCSUlts from their Km^b'e'r °7.'?9^4?:- '°"^^ ''""^ '' *° analysis is given in Figure 38.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. California. Dept. of Fish and

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