Stomach contents and carbon (C) and nitrogen (N) stable isotope analysis were used to
evaluate trophic relationships of jumbo squid, Dosidicus gigas. Buccal masses, beaks and …

Rationale Stable isotopes are a prominent tool in animal ecology where data is obtained
from analyzing animal tissues, which are typically stored prior to analysis. However, the …

Using non-lethal tissue sampling for stable isotope analysis has become standard in many
fields, but not for fishes, despite being desirable when species are rare or protected, when …

Temporal diet changes can be detected by comparing δ13C and δ15N values between
tissues with different isotopic turnover times. However, other factors contribute to disparities …

Stable isotope (SI) analysis studies rely on knowledge of isotopic turnover rates and trophic-
step discrimination factors. Epidermal mucus ('mucus') potentially provides an alternative SI …

Determination of the isotopic turnover rate in the various tissues of an organism is one of the
essential prerequisites for tracing the food sources of consumers and for elucidating trophic …

This study examines the diet of lesser spotted dogfish Scyliorhinus canicula, one of the most
ubiquitous predators of European coastal waters. This species is of increasing ecological …

Stable isotope analysis has provided insights into the trophic ecology of a wide diversity of
animals. Knowledge about isotopic incorporation rates and isotopic discrimination between …

Skin and muscle from 43 bottlenose dolphins (38 juveniles/adults, 5 calves) stranded in NW
Spain were analysed to determine whether stable isotope ratios (δ 13 C and δ 15 N) could …

The food habits of the spotted rose snapper, Lutjanus guttatus (Steindachner, 1869), living
off of the Eastern coast of the Southern Gulf of California (off the coast of Nayarit) are …