A stable isotope (δ13C, δ15N) model for the North Water food web: implications for evaluating trophodynamics and the flow of energy and contaminants

By Keith A. Hobson, A. Fisk, N. Karnovsky, M. Holst, J. Gagnon, M. Fortier. 2002

536 citations recorded by the source corpus.

Subfields: Ecology, Health, Toxicology and Mutagenesis

View Paper: https://www.semanticscholar.org/paper/feb5247dd3a103b23852175113aa77156738f93d

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Citations in the corpus

Feeding ecology of phocid seals and some walrus in the Alaskan and Canadian Arctic as determined by stomach contents and stable isotope analysis (2006, background): “Similarly, frequency of amphipods in this study was 39%, but biomass consumed was Table 3 continued Species Sampling location n d15N(&) d13C(&) Reference Whelk (Buccinum spp.) Canadian Arctic 5 12.6 ± 0.7 na Hobson and Welch (1992) Softshell Mussel (Mya truncata) Canadian Arctic 7 9.5 ± 0.7 –19.0 ± ”
Using stable isotope biogeochemistry to study marine mammal ecology (2010, background): “Significant, positive correlations among PCB, DDT, and FOC concentrations and trophic level, as derived from 15N values, are strong evidence for bioaccumulation of these compounds in marine food webs (Jarman et al. 1996, Fisk et al. 2001, Hobson et al. 2002, Tomy et al. 2004).”
Community structure and food web based on stable isotopes (δ15N and δ13C) analysis of a North Eastern Atlantic maerl bed (2006, background): “generally lower ( Hobson et al., 1995, 2002; Herman et al., 2000; Davenport and Bax, 2002; Le Loc'h and Hily, 2005) than the 8.2‰ δ15N variation found across the maerl bed”
Feeding ecology of eastern North Pacific killer whales Orcinus orca from fatty acid, stable isotope, and organochlorine analyses of blubber biopsies (2005, background): “…in the killer whales diet; δ15Ni and δ13Ci are the measured stable isotope ratio values of the i th prey species for nitrogen and carbon respectively; and +3.8 and +1.3 are the applicable isotopic enrichments per trophic level values for nitrogen and carbon respectively (Hobson et al. 1996, 2002).”
Ontogenetic and seasonal changes in the feeding habits and trophic levels of two small pelagic fish species (2012, result): “…of high δ15N values, such as carnivorous copepods or even small larvae, on their houses (Deibel & Lee 1992); this is in accordance with the data of Hobson et al. (2002), who obtained a higher value of stable-nitrogen isotope and a higher trophic level in appendicularians than in mixed…”
Seasonal changes in diets of seabirds in the North Water Polynya: a multiple-indicator approach (2008, background): “Methods followed those described by Hobson et al. (2002a).”
The sub-ice algal community in the Chukchi sea: large- and small-scale patterns of abundance based on images from a remotely operated vehicle (2005, background): “This production contributes to pelagic and benthic food webs (Bradstreet and Cross 1982; Runge and Ingram 1988; Gulliksen and Lonne 1989; Legendre et al. 1992; Rysgaard et al. 2001; Hobson et al. 2002 ) and may also be important in global carbon cycling (Legendre et al. 1992; Yager et al. 1995; Pom”
Stable isotopes reveal the trophic position and mesopelagic fish diet of female southern elephant seals breeding on the Kerguelen Islands (2008, background): “Derived TLs from δ15N values showed that marine mammals (including elephant seals) and seabirds belong to the upper levels of the trophic web, but most of these species do not occupy the highest levels, as does the polar bear in the high-Arctic (Hobson et al. 2002).”
USING ANTHROPOGENIC CONTAMINANTS AND STABLE ISOTOPES TO ASSESS THE FEEDING ECOLOGY OF GREENLAND SHARKS (2002, background): “Carbon derived from pelagic sources in the marine environment is generally depleted in 13C. Ringed seals feed predominantly on Arctic (Boreogadus saida) and polar cod (Arctogadus glacialis) and on pelagic and ice-associated zooplankton (Weslawski et al. 1994, Holst 2000).”
Isotopic reconstruction of marine food webs using cephalopod beaks: new insight from captively raised Sepia officinalis (2006, background): “The measurement of stable carbon and nitrogen isotope ratios of consumer tissues in marine food webs has provided important insights into the ecology of individuals and species and the trophic interactions within complex species communities (Michener and Schell 1994; Hobson et al. 2002).”
Communal or competitive? Stable isotope analysis provides evidence of resource partitioning within a communal shark nursery (2011, background): “While a number of SIA studies have been carried out on the structure of marine food webs (Hobson & Welch 1992, Michener & Schell 1994, Hobson et al. 2002), and focusing on specific teleost species (Thomas & Cahoon 1993, Das et al. 2000, Harvey et al. 2002, Cunjak et al. 2005, Perga & Gerdeaux 2005,…”
Changes in diet and trophic position of a top predator 10 years after a mass mortality of a key prey (2010, background): “Measurements of the stable isotope ratios of carbon (d13C) and nitrogen (d15N) can provide trophic-level and space-use information of consumers in marine foodwebs (Hobson and Welch, 1992; Forero et al., 2002; Hobson et al., 2002).”
The importance of ice algae‐produced carbon in the central Arctic Ocean ecosystem: Food web relationships revealed by lipid and stable isotope analyses (2016, background): “This difference in isotope values allows for the tracking of carbon from ice algae and pelagic phytoplankton to higher trophic levels (Hobson et al. 2002; Søreide et al. 2013).”