Variation in food sources of the macrobenthos along a land–sea transect: a stable isotope study

Trophic ecology of juvenile flatfish in a coastal nursery ground: contributions of intertidal primary production and freshwater particulate organic matter

“…The δ 13 C values for freshwater POM were lower than other organic matter sources, following a well-documented pattern of trophic sources in coastal and estuarine systems (Darnaude et al 2004, Kostecki et al 2010). An increasing δ 13 C of POM from fresh to marine waters was observed, which is consistent with previous studies (Yokoyama & Ishihi 2007). Detrital salt-marsh species had distinct C and N stable isotope values, allowing discrimination, and MPB displayed the highest δ…”

“…These patterns fit with previous stable isotope analyses in this bay (Lefeuvre et al 2000, Riera 2007) and elsewhere (Yokoyama & Ishihi 2007, Choy et al 2008). …”

Temporal variability in the isotopic niches of rocky shore grazers and suspension‐feeders

“…The smaller within‐date intra‐population variability in the suspension‐feeders probably reflected their increased feeding specificity compared with grazers, as filtration mechanisms of many species exploit certain components of the suspended particulates available (Decottignies et al . ; Yokoyama & Ishihi ; Kang et al . ).…”

“…). Researchers have used isotopic techniques to explore the diets of coastal invertebrates, and spatial variability has been a topic of interest (Riera & Richard ; Yokoyama & Ishihi ; Vanderklift & Wernberg ; Richoux et al . ).…”

δ15N and δ13C reveal differences in carbon flow through estuarine benthic food webs in response to the relative availability of macroalgae and eelgrass

“…The composition of benthic consumer diets may change in relation to the availability, supply and quality of different food sources. Fish and invertebrates have been shown to change diets along a gradient from upper to lower estuary, reflecting changes in the relative contribution of terrestrial and estuarine or marine sources of organic matter (Peterson et al 1985, Deegan & Garritt 1997, Doi et al 2005, Yokoyama & Ishihi 2007. Shifts in the estuarine benthic producer community composition also affect consumer diets, e.g.…”