Lipid corrections in carbon and nitrogen stable isotope analyses: comparison of chemical extraction and modelling methods.

By J. Logan, T. Jardine, T. Miller, Stuart E. Bunn, R. Cunjak, M. Lutcavage. Journal of Animal Ecology, 2008

752 citations recorded by the source corpus.

Subfields: Ecology, Global and Planetary Change

View Paper: https://www.semanticscholar.org/paper/7e4aba8a0b88e50ec5b81349fdc285937c481886

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Ecology

1. B. Popp
2. C. Choy
3. J. Drazen
4. C. Hannides
5. J. Logan
6. M. Kainz
7. Joan Navarro
8. M. Lutcavage

In Global and Planetary Change

1. C. Choy
2. J. Drazen
3. Marta Coll
4. B. Popp
5. C. Hannides
6. J. Logan
7. Joan Navarro
8. E. Rodríguez-Marín

Citations in the corpus

• A non-lethal sampling method for stable carbon and nitrogen isotope studies of tropical fishes (2011, neutral): “High and variable tissue lipid content can cause δ 13 C values to deviate from that expected from diet; however, because C/N of both fin and muscle was less than 4, indicative of low-lipid tissue, δ 13 C data were not corrected for lipids (Logan et al. 2008).”
• A practical introduction to stable-isotope analysis for seabird biologists: Approaches, cautions and caveats (2009, background): “Two recent reviews (Post et al. 2007, Logan et al. 2008) compared mathematical modelling methods and chemical extraction techniques, and concluded that analysing a subset of samples before and after chemical lipid extraction will allow researchers to develop unique mathematical lipid models that…”
• Trophic structure and food resources of epipelagic and mesopelagic fishes in the North Pacific Subtropical Gyre ecosystem inferred from nitrogen isotopic compositions (2015, methodology): “All d13C values were normalized for lipidcontent (based on molar C : N ratios) using isotope mass balance approaches based on comparable pelagic fishes (for micronekton, Hoffman & Sutton 2010; for large fishes, Logan et al. 2008).”
• Diet of young Atlantic bluefin tuna (Thunnus thynnus) in eastern and western Atlantic foraging grounds (2010, methodology): “For age 1–3 ABFT, muscle tissues from both regions had minimal lipid stores (mean C:N *3.2, lipid-free value *3.1 (Logan et al. 2008)), while age 4–5 ABFT from the MAB had slightly higher C:N values (*3.4).”
• Effects of acid treatment on carbon and nitrogen stable isotope ratios in ecological samples: a review and synthesis (2014, neutral): “2011b), lipid extraction (Logan et al. 2008; Mintenbeck et al. 2008), the type of capsule material (Bosley and Wainright 1999; Brodie et al.”
• Fish bone chemistry and ultrastructure: implications for taphonomy and stable isotope analysis (2011, background): “This topic has received considerable attention in the ecological literature (e.g. Hoffman and Sutton, 2010; Logan et al., 2008; Post et al., 2007; Sotiropoulos et al., 2004; Sweeting et al., 2006), although these studies have focused on tissues typically utilized by ecologists: muscle, liver and…”
• On the Use of Stable Isotopes in Trophic Ecology (2011, background): “Several chemical procedures have been suggested to extract lipids from tissue samples prior to isotopic determination (Logan et al. 2008).”
• Characterizing dietary variability and trophic positions of coastal calanoid copepods: insight from stable isotopes and fatty acids (2009, background): “Thus, standardizing copepod samples for lipids is extremely important for the trophic interpretation of stable isotope data, an idea which has become more popular in recent literature (e.g., Logan et al. (2008) ).”
• Ontogenetic and seasonal changes in the feeding habits and trophic levels of two small pelagic fish species (2012, methodology): “This procedure reduces the time and uncertainty associated with lipid extraction procedures, and it improves the estimates of dietary proportions derived from stable-isotope mixing models (Phillips & Gregg 2001, Logan et al. 2008).”
• Stable isotope dynamics in elasmobranch fishes (2010, methodology): “0, but this is likely due to lipids (Logan et al., 2008).”
• Turnover and fractionation of carbon and nitrogen stable isotopes in tissues of a migratory coastal predator, summer flounder (Paralichthys dentatus) (2010, methodology): “A mathematical correction was used to normalize liver d13C values due to the high lipid concentrations in this tissue that bias d13C (DeNiro and Epstein 1977; Logan et al. 2008). A subsample of livers was used to characterize the relationship between raw C:N and the bias in d13C due to lipids by mea”
• Unravelling the ecological role and trophic relationships of uncommon and threatened elasmobranchs in the western Mediterranean Sea (2015, methodology): “For the samples with a C:N ratio higher than 3.5‰, we corrected the δ13C values to account for the presence of lipids in muscle samples (Logan et al. 2008).”