FOOD OF THE PACIFIC SARDINE (Sardinops Caerulea) by Hand, Cadet H. and Berner Jr. Leo - 1959-01-01

US DEPT OF THE INTERIOR, 1959-01-01. Paperback. Good. 16 page, staple bound booklet with paper covers. US DEPT OF THE INTERIOR, Fishery Bulletin 164 from Fishery Bulletin of the Fish and Wildlife Service Volume 60, pages 175- 184 [Published date: 1959]. In good condition with light bumping and creasing to edges and corners of covers. Previous owner's initials in ink on top corner of front cover and Light overall scuffing and soiling to covers as well. Binding tight (staple bound). Pages lightly aged but otherwise unmarked. NOT Ex-Library. Contents include Methods; food of the Sardine; Summary; Literature Cited and Appendix. [From ABSTRACT] Stomach contents of adult and juvenile Pacific sardines (Sardinops caerulea), ranging in size from 31 to 285 mm. standard length, were investigated. Crustaceans were found to be the major food item, contributing 89 percent of the organic matter in the stomachs. Size of fish, within the range investigated, had little effect on the food contained in the stomachs, except for a smaller amount of phytoplankton in the juvenile fish.A very high correlation was found between stomach contents of fish taken from a single school. The stomach contents also showed high correlation withplankton samples taken at the same time and place. It was concluded that sardines are omnivorous, are filter feeders as well as particulate feeders, and, at least at times, are selective feeders.