. A biological survey of the Oswego River system. Supplemental to Seventeenth annual report, 1927. Fishes. 80 Conservation Department never come to the surface of the water. Sometimes two fishes would be working on one plant, each apparently unconscious of the other's presence. At intervals a fish would remain motionless, except for the slowly waving fins, and then suddenly dart off to a new clump of Chara, More detailed observations of the feeding habits of the little carp were obtained from fish living in aquaria and the artificial pens at Clough's bay. The bottom of the aquarium was covered
. A biological survey of the Oswego River system. Supplemental to Seventeenth annual report, 1927. Fishes. 80 Conservation Department never come to the surface of the water. Sometimes two fishes would be working on one plant, each apparently unconscious of the other's presence. At intervals a fish would remain motionless, except for the slowly waving fins, and then suddenly dart off to a new clump of Chara, More detailed observations of the feeding habits of the little carp were obtained from fish living in aquaria and the artificial pens at Clough's bay. The bottom of the aquarium was covered with fine sand and clay rich in organic. Flooded land along old channel of Seneca river, habitat of spawning carp material. Within a few days the surface showed numerous small pits. These were made by the young carp which often take a position forming an angle of about 90° with the bottom and with the tip of the snout in the sand. Next a cloud of sand is seen passing out of the opercular opening. Sometimes this is all that happens and the fish proceeds to swim about in the aquarium; but at other times the fish takes a position horizontal to the bottom and works the jaws repeatedly as if chewing, the jaws opening and closing from 12 to 18 times according to some of our records. After this chewing, the fish swims around. There is still another feeding habit of the young carp in aquaria that has been interest-. 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 New York (State). Conservation Dept; New York (State). Conservation Dept. Annual report. Albany, The Department
Size: 1689px × 1479px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectio, bookdecade1920, booksubjectfishes
