| Photographic catalog of California marine fish otoliths : prey of California Sea lions (Zalophus californianus) - :4511 | National Marine Fisheries Service (NMFS)
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Photographic catalog of California marine fish otoliths : prey of California Sea lions (Zalophus californianus)
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Photographic catalog of California marine fish otoliths : prey of California Sea lions (Zalophus californianus)
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    "Fish otoliths have been used to identify prey in the diet of marine mammals, fish, and seabirds, and in remains from archaeological sites. Researchers have used otolith reference collections and/or drawings and photographs in publications to aid in these identifications. The standard (or most complete) otolith reference collection for the Northeast Pacific, the John Fitch Otolith Collection, resides at the Natural History Museum of Los Angeles County (LACM). Specimens from this collection were photographed and organized into a catalog. Otolith selection was based on fish species identified in California sea lion (Zalophus californianus) diet studies and includes other closely related species. This catalog can be used as an aide in the identification of marine fish otoliths recovered in scat samples, spewings, and stomach contents of piscivorous predators or of otoliths found in Native American middens. Species in the catalog each have multiple otoliths illustrated (with multiple views) to document within-species variability in otolith shape and form. As fish grow, otolith shape can change, so whenever possible, otoliths from different sizes or ages of fish were included in the catalog"--Introduction.

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