. Chasse et pêche de la Californie. Pêche -- Californie ; jeu et jeu-oiseaux -- Californie ; Poissons -- Californie ; groupes de population animale ; pêches ; gibier, poissons. CALIFORNIA FISH AND GAME 45 OPÉRATIONS DE COMPENSATION SUR UN CANAL D'IRRIGATION PAR J. B. Phillips^ INTRODUCTION Division of Fish and Game de Californie a mené une série de tests à la senne sur la rivière Sacramento belov^^^ les pompes du Glenn Comté Irrigation District/ pendant le printemps et l'été de 1929. Ces tests ont été à la senne dans le but de vérifier si la nourriture et les poissons passaient par les pompes dans le canal d'irrigation.

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. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. CALIFORNIA FISH AND GAME 45 NETTING OPERATIONS ON AN IRRIGATION CANAL By J. B. Phillips INTRODUCTION Tlie Division of Fish and Game of California conducted a series of seining tests on tlie Sacramento River belov^^ the pumps of the Glenn Colusa Irrigation District/ during the spring and summer of 1929. These seining tests were for the purpose of ascertaining if food and game fish were going through the pumps into the irrigating canal. The results of these operations have formed a basis for a superior court hearing held at Willows, California, May 19-22, 1930, before Judge H. S. Cans of Tehama County. Inasmuch as the resmlts of the operations were considered satisfactory, the gear and methods of oper- ating are herewith summarized for whatever value they may have in future work along this line.. Fig. 27. View showing- intake from Sacramento River to Glenn Colusa Irriga- tion canal. Photo by J. B. Phillips, June, 1929. Under the direction of John Spencer, director of the Bureau of Hydraulics, J. B. Phillips of the Bureau of Commercial Fisheries and Roy W. Anderson of the Bureau of Patrol, were detailed to carry on the investigation. Supervising Captain 11. B. Nidever and Captain S. J. Carpenter commenced the work. N. B. Scofield in charge of the Bureau of Commercial Fisheries acted in an advisory capacity through- out the operations, the success of which was in a large measure due to his helpful suggestions. Earl Tweede, superintendent for the dis- trict, kept in close touch with the operations. His helpfulness and cooperation were much appreciated. Headquarters were established just below the head gates, permis- sion being granted by the district. Seining operations were carried on almost continuously from April 18 to August 20, 1929. • The District has nearly 123, 000 acres under its network of canals. Th