Isotopic turnover in aquatic predators: quantifying the exploitation of migratory prey
By S. MacAvoy, S. Macko, G. Garman. 2001
215 citations recorded by the source corpus.
In the tidal freshwaters of Virginia, U.S.A., the blue catfish (Ictalurus furcatus), an introduced piscivore, derives a significant proportion of its nutrition from spawning anadromous fish (genus Alosa, including blueback herring (A. aestivalis), American shad (A. sapidissima), and alewife (A. pseudoharengus)). Because the Alosa are not continually available to I. furcatus, there is an isotopic turnover, defined as change in isotope composition due to growth and metabolic tissue replacement, in I. furcatus tissues associated with the diet switch from freshwater to anadromous fishes. However, isotopic turnover rates for ictalurid fish are unknown. This study determined the maximum isotopic turnover rate of channel catfish (Ictalurus punctatus) tissues and compared this maximum rate with that of I. furcatus captured in the field over the 3-month Alosa spawning run. Maximum turnover rates for δ13C were 0.014 and 0.017 per day in muscle and blood. For δ34S, rates were 0.017 and 0.020 per day in muscle and ...
Subfields: Ecology, Nature and Landscape Conservation
View Paper: https://www.semanticscholar.org/paper/26fd55deef8803442a1421f6ddb12956a288045c
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Citations in the corpus
- Tissue-specific turnover rates of the nitrogen stable isotope as functions of time and growth in a cyprinid fish (2018, background): “This strong influence of growth on isotopic turnover has also been reported for ectothermic animals more generally (e.g. MacAvoy et al., 2001; Perga & Gerdeaux, 2005; Heady & Moore, 2013) and is attributed to them having lower metabolic activities than endotherms (Bosley et al., 2002; Tominaga et…”
- Stable isotope dynamics in elasmobranch fishes (2010, background): “Slow muscle turnover rates for sandbar sharks are similar to past estimates for slowly growing teleosts (Hesslein et al., 1993; MacAvoy et al., 2001) and benthic elasmobranchs (MacNeil et al.”
- Rates and components of carbon turnover in fish muscle: insights from bioenergetics models and a whole-lake 13C addition (2011, background): “…7.40 10–4 Herzka and Holt 2000*,{ 0.0990 7.0 24.00 8.90 10–4 Herzka and Holt 2000*,{ Channel catfish (Icatalurus punctatus) 0.0140 49.5 15.00 8.67 101 MacAvoy et al. 2001 Winter flounder (Pleuronectes americanus) 0.1700 0.024 4.1 13.00 4.80 10–4 Bosley et al. 2002* 0.3200 0.038 2.2 18.00 3.80…”
- Stable isotope and fatty acid tracers in energy and nutrient studies of jellyfish: a review (2008, background): “Most studies indicate that, for aquatic animals, the majority of carbon and nitrogen turnover results from growth rather than metabolic maintenance (Fry & Arnold, 1982; Hesslein et al., 1993; MacAvoy et al., 2001), although results vary (e.”
- Mucus : a new tissue fraction for rapid determination of fish diet switching using stable isotope analysis (2009, background): “…analysis of stable isotope ratios in fish can be a powerful tool for studying fish ecology, including, for example, movement of fish from one habitat (and diet) to another (e.g., Maruyama et al. 2001) or diet switching by a resident species to make use of migratory prey (e.g., MacAvoy et al. 2001).”
- Assessing connectivity of estuarine fishes based on stable isotope ratio analysis (2005, background): “For those same elements, MacAvoy et al. (2001) found that isotopic signatures in blood turned over faster than in muscle tissue of channel catfish.”
- Variable uptake and elimination of stable nitrogen isotopes between tissues in fish (2006, background): “MacAvoy et al. (2001) sampled muscle and blood in blue catfish (Ictalurus furcatus) and, using a range of k values between 0.00218 and 0.009 day–1, concluded that m contributed little to δ15N turnover in muscle.”
- Changes in d13C and d15N in different tissues of juvenile sand goby Pomatoschistus minutus: a laboratory diet-switch experiment (2007, background): “…considered to be negligible or of minor importance in ectotherms, contrasting results have recently been found for fish tissues (Hesslein et al. 1993, Herzka & Holt 2000, MacAvoy et al. 2001, Bosley et al. 2002, Sakano et al. 2005, Suzuki et al. 2005, Logan et al. 2006, McIntyre & Flecker 2006).”
- Incorporating uncertainty and prior information into stable isotope mixing models. (2008, background): “The isotopic signatures of rainbow trout tissue in our study provide information on consumption integrated across an extended period of time, likely months (e.g. MacAvoy et al. 2001).”
- Turnover and fractionation of carbon and nitrogen stable isotopes in tissues of a migratory coastal predator, summer flounder (Paralichthys dentatus) (2010, background): “Other studies have also documented faster turnover of C relative to N in some tissues (MacAvoy et al. 2001; Suzuki et al. 2005; Guelinckx et al. 2007), likely due to different catabolic processes operating on the various biochemical constituents of tissues.”
- Growth versus metabolic tissue replacement in mouse tissues determined by stable carbon and nitrogen isotope analysis (2005, methodology): “…have examined blood tissue turnover using stable-isotope analysis, and these have focused on quail and chickens (Hobson and Clark 1992a, 1992b), canvasbacks (Aythya valisineria (Wilson, 1814); Haramis et al. 2001), and adult catfish (Ictalurus punctatus (Rafinesque, 1818); MacAvoy et al. 2001).”