Incremental analysis of vertebral centra can reconstruct the stable isotope chronology of teleost fishes

Matsubayashi, Jun; Yu, Su; Osada, Yoshihito; Uehara, Yoshitoshi; Habu, Junko; Sasaki, Tsuyoshi; Tayasu, Ichiro

doi:10.1111/2041-210x.12834

Cited by 29 publications

(26 citation statements)

References 54 publications

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“…Second, isotope values in each vertebral section are unchanged from the values at the time when each section was created. Matsubayashi et al (2017, 2019) provided evidence of a minimal effect from replacement‐based turnover in collagen from vertebral bone in fishes. Third, the natal river of individual salmon is the same as the sampled river.…”

Section: Methodsmentioning

confidence: 99%

“…Recent studies have developed a method to perform retrospective δ 15 N analysis in teleost fishes using their vertebrae (Matsubayashi et al 2017, 2019). Fish vertebrae exhibit incremental growth, and isotopes incorporated into the bone collagen of each vertebral section remain in place for a long time in the absence of active metabolic tissue replacement.…”

Section: Introductionmentioning

confidence: 99%

“…We constructed an isoscape of δ 15 N Base in the North Pacific using the δ 15 N Bulk and δ 15 N AAs of copepods collected from the migration area of chum salmon. Then, we performed retrospective δ 15 N AAs analysis of vertebral sections extracted from bodies of spawning salmon, and measured δ 15 N Base for successive growth stages of each fish (Matsubayashi et al 2017, 2019). Finally, we developed a state‐space model to estimate migration routes of individual salmon by using δ 15 N Base isoscapes in the North Pacific and δ 15 N Base time‐series in salmon, and compared the results with a known migration route of chum salmon from Japan to the Bering Sea.…”

Section: Introductionmentioning

confidence: 99%

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Tracking long‐distance migration of marine fishes using compound‐specific stable isotope analysis of amino acids

et al. 2020

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The long-distance migrations by marine fishes are difficult to track by field observation. Here, we propose a new method to track such migrations using stable nitrogen isotopic composition at the base of the food web (d 15 N Base ), which can be estimated by using compound-specific isotope analysis. d 15 N Base exclusively reflects the d 15 N of nitrate in the ocean at a regional scale and is not affected by the trophic position of sampled organisms. In other words, d 15 N Base allows for direct comparison of isotope ratios between proxy organisms of the isoscape and the target migratory animal. We initially constructed a d 15 N Base isoscape in the northern North Pacific by bulk and compound-specific isotope analyses of copepods (n = 360 and 24, respectively), and then we determined retrospective d 15 N Base values of spawning chum salmon (Oncorhynchus keta) from their vertebral centra (10 sections from each of two salmon). We then estimated the migration routes of chum salmon during their skeletal growth by using a state-space model. Our isotope tracking method successfully reproduced a known chum salmon migration route between the Okhotsk and Bering seas, and our findings suggest the presence of a new migration route to the Bering Sea Shelf during a later growth stage.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Tracking long‐distance migration of marine fishes using compound‐specific stable isotope analysis of amino acids

et al. 2020

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“…Even though Bayesian stable isotope mixing models account for uncertainty in TDFs, their outputs are still highly sensitive to variation in TDFs (Bond and Diamond, 2011). Given uncertainty in the diet-bone TDFs for sea turtles, we used a sensitivity analysis to characterize the influence of varying TDFs on diet composition estimates that encompass the range of dietbone TDFs reported for sea turtles and other animal species maintained on carnivorous diets (∼2-6 ; e.g., Ambrose and DeNiro, 1986;Hobson and Clark, 1992;Fox-Dobbs et al, 2007;Borrell et al, 2012;Kim et al, 2012;Cloyed et al, 2015;Webb et al, 2016;Matsubayashi et al, 2017).…”

Section: Stable Isotope Mixing Modelmentioning

confidence: 99%

Regional Variation in Kemp’s Ridley Sea Turtle Diet Composition and Its Potential Relationship With Somatic Growth

et al. 2020

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Reptile growth is influenced by many ecological processes that can cumulatively give rise to divergent somatic growth rates within spatially structured populations. As somatic growth variation can strongly influence a species' population dynamics, identifying proximate drivers can be critical to the conservation and management of protected species. Kemp's ridley sea turtles (Lepidochelys kempii) exhibit spatial variation in both diet composition and growth, but whether components of this variation are linked has not been evaluated. Through an integration of skeletochronological and stable isotope analyses of stranded turtle humerus bones we characterized regional variation in Kemp's ridley diet composition and potential relationships with somatic growth rates. Turtles were divided among five regions within the United States Gulf of Mexico (GoM) and Atlantic Coast based on location of stranding, and humerus bones were sampled for stable carbon (δ 13 C) and nitrogen (δ 15 N) isotope ratios. These data were combined with region-specific prey stable isotope data sourced from the primary literature into Bayesian stable isotope mixing models (MixSIAR) to estimate the proportional contribution of five prey groups (crustaceans, bivalves, gastropods, fish, and macroalgae/seagrass) to Kemp's ridley diets. Our analysis revealed strong regional differences in mixing model-derived diet composition estimates that closely tracked published records of Kemp's ridley diet. Invertebrates generally comprised the largest proportion (43.5-97.7%) of turtle diets. However, we also observed high proportional contributions of fish (42.6-43.1%) to western GoM turtle diets and macroalgae/seagrass (42.4-47.8%), or isotopically similar prey resources (e.g., tunicates), to eastern GoM turtle diets. Growth rates were poorly correlated with δ 15 N values-a proxy for trophic level-and diet composition estimates, suggesting that diet composition alone may not explain the regional differences in somatic growth observed in this species. This study highlights the value of complementary skeletal and isotopic analyses to understanding regional

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“…Although it is well known that otoliths, which grow by apposition, preserve chronological information about the habitats of an individual in the form of geochemical properties such as Mg/Ca and Sr isotope ratios (e.g., Kennedy et al 2002), otoliths are too small to yield enough Nd for isotopic measurements. However, a method using vertebral centra (Matsubayashi et al 2017), which also grow by apposition like otoliths, may make it possible to retrieve Nd isotopic information from the juvenile to adult life stages of marine organisms.…”

Section: Use Of E Nd As a Tracer Of Animal Migration In Marine Habitatsmentioning

confidence: 99%

Utility of Nd isotope ratio as a tracer of marine animals: regional variation in coastal seas and causal factors

Nakano

Shin

et al. 2018

Ecosphere

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2018. Utility of Nd isotope ratio as a tracer of marine animals: regional variation in coastal seas and causal factors. Ecosphere 9(8):Abstract. Isotopic compositions of animal tissue are an intrinsic marker commonly used to trace animal origins and migrations; however, few isotopes are effective for this purpose in marine environments, especially on a local scale. The isotope ratio of the lanthanoid element neodymium (Nd) is a promising tracer for coastal animal migrations. Neodymium derives from the same geologic materials as strontium, well known as an isotopic tracer ( 87 Sr/ 86 Sr) for terrestrial and anadromous animals. The advantage of the Nd isotope ratio ( 143 Nd/ 144 Nd, expressed as e Nd ) is that it varies greatly in the ocean according to the geology of the neighboring continents, whereas oceanic 87 Sr/ 86 Sr is highly uniform. This study explored the utility of the Nd isotope ratio as a marine tracer by investigating the variation of e Nd preserved in tissues of coastal species, and the causes of that variation, in a region of northeastern Japan where the bedrock geology is highly variable. We measured e Nd and 87 Sr/ 86 Sr in seawater, river water, and soft tissues of sedentary suspension feeders: the mussels Mytilus galloprovincialis and Mytilus coruscus and the oyster Crassostrea gigas. We also measured concentrations of three lanthanoids (La, Ce, and Pr) in shellfish bodies to determine whether the Nd in shellfish tissue was derived from solution in seawater or from suspended particulates. The e Nd values in shellfish tissue varied regionally (À6 to +1), matching the ambient seawater, whereas all 87 Sr/ 86 Sr values were homogeneous and typical of seawater (0.7091-0.7092). The seawater e Nd values were in turn correlated with those in the adjacent rivers, linking shellfish e Nd to the geology of river catchments. The depletion of Ce compared to La and Pr (negative Ce anomaly) suggested that the Nd in shellfish was derived from the dissolved phase in seawater. Our results indicate that the distinct Nd isotope ratio derived from local geology is imprinted, through seawater, on the soft tissues of shellfish. This result underscores the potential of e Nd as a tracer of coastal marine animals.

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Incremental analysis of vertebral centra can reconstruct the stable isotope chronology of teleost fishes

Cited by 29 publications

References 54 publications

Tracking long‐distance migration of marine fishes using compound‐specific stable isotope analysis of amino acids

Tracking long‐distance migration of marine fishes using compound‐specific stable isotope analysis of amino acids

Regional Variation in Kemp’s Ridley Sea Turtle Diet Composition and Its Potential Relationship With Somatic Growth

Utility of Nd isotope ratio as a tracer of marine animals: regional variation in coastal seas and causal factors

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