TY - JOUR
T1 - Isotopic analysis of δ13C, δ15N, and δ34S "a feeding tale" in teeth of the longbeaked common dolphin, Delphinus capensis
AU - Niño-Torres, Carlos Alberto
AU - Gallo-Reynoso, Juan Pablo
AU - Galván-Magaña, Felipe
AU - Escobar-Briones, Elva
AU - Macko, Stephen A.
PY - 2006/10
Y1 - 2006/10
N2 - Stable isotopic analyses of carbon, nitrogen, and sulfur were performed on teeth of different ages and sexes of the longbeaked common dolphin, Delphinus capensis, from the Gulf of California. Similarities in diet are suggested between the sexes, with no significant differences in isotopic compositions being observed. Differences in the δ13C, δ15N, and δ34S signatures were found among the age groups (nursing calf, juvenile, subadult, and adult). These data suggest that this species is generally a coastal feeder, and that it changes its feeding habits with increasing age, drawing more nutrition from higher trophic level organisms later in life.
AB - Stable isotopic analyses of carbon, nitrogen, and sulfur were performed on teeth of different ages and sexes of the longbeaked common dolphin, Delphinus capensis, from the Gulf of California. Similarities in diet are suggested between the sexes, with no significant differences in isotopic compositions being observed. Differences in the δ13C, δ15N, and δ34S signatures were found among the age groups (nursing calf, juvenile, subadult, and adult). These data suggest that this species is generally a coastal feeder, and that it changes its feeding habits with increasing age, drawing more nutrition from higher trophic level organisms later in life.
KW - Common dolphin
KW - Delphinus capensis
KW - Feeding habits
KW - Gulf of California
KW - Stable isotopes
KW - Trophic level
UR - http://www.scopus.com/inward/record.url?scp=33748939408&partnerID=8YFLogxK
U2 - 10.1111/j.1748-7692.2006.00065.x
DO - 10.1111/j.1748-7692.2006.00065.x
M3 - Artículo
SN - 0824-0469
VL - 22
SP - 831
EP - 846
JO - Marine Mammal Science
JF - Marine Mammal Science
IS - 4
ER -