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Journal articles on the topic 'Otolith chemistry'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 March 2023

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1

Dorval, Emmanis, Cynthia M. Jones, Robyn Hannigan, and Jacques van Montfrans. "Relating otolith chemistry to surface water chemistry in a coastal plain estuary." Canadian Journal of Fisheries and Aquatic Sciences 64, no. 3 (2007): 411–24. http://dx.doi.org/10.1139/f07-015.

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Although laboratory studies confirm that otoliths incorporate trace elements and stable isotopes from surrounding waters, few studies explore the relationship of otolith chemistry to water chemistry in the field and none include a larger suite of environmental tracers, such as rare earth elements. Using spotted seatrout (Cynoscion nebulosus) as model species, we tested the hypothesis that otoliths record the water chemistry of seagrass habitats in Chesapeake Bay. In summer 2001, we sampled water and juvenile fish in seagrass beds of the bay. Weighted linear regressions showed that [Ba/Ca]otoli

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2

Ruttenberg, Benjamin I., Scott L. Hamilton, and Robert R. Warner. "Spatial and temporal variation in the natal otolith chemistry of a Hawaiian reef fish: prospects for measuring population connectivity." Canadian Journal of Fisheries and Aquatic Sciences 65, no. 6 (2008): 1181–92. http://dx.doi.org/10.1139/f08-052.

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One of the most compelling unanswered questions in marine ecology is the extent to which local populations are connected via larval exchange. Recent work has suggested that variation in the chemistry of otoliths (earstones) of fishes may function as a natural tag, potentially allowing investigators to determine sources of individual larvae and estimate larval connectivity. We analyzed the spatial and temporal variation in natal otolith chemistry of a benthic-spawning reef fish from the Hawaiian Islands. We found no consistent chemical variation at the largest scale (>100 km, among islands),

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3

Budnik, Richard R., John R. Farver, Joel E. Gagnon, and Jeffrey G. Miner. "Trash or treasure? Use of sagittal otoliths partially composed of vaterite for hatchery stock discrimination in steelhead." Canadian Journal of Fisheries and Aquatic Sciences 77, no. 2 (2020): 276–84. http://dx.doi.org/10.1139/cjfas-2018-0387.

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Sagittal otoliths are normally deposited as the CaCO3 polymorph aragonite; however, a proportion of otoliths transitions to vaterite during growth. This transition can complicate otolith chemistry analyses, as differences in the crystalline structure (aragonite or vaterite) of otoliths causes variation in otolith chemistry signatures. To address this issue, we introduce a method to utilize sagittal otoliths partially composed of vaterite for stock discrimination. Using this method, we determined the hatchery origins of yearlings from five Lake Erie hatcheries by using Ba, Mg, Mn, and Sr concen

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4

Kemp, Jodie, Stephen E. Swearer, Gregory P. Jenkins, and Simon Robertson. "Otolith chemistry is more accurate than otolith shape in identifying cod species (genus Pseudophycis) in the diet of Australian fur seals (Arctocephalus pusillus doriferus)." Canadian Journal of Fisheries and Aquatic Sciences 68, no. 10 (2011): 1732–43. http://dx.doi.org/10.1139/f2011-088.

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Fine-scale shape variation and the added effect of partial digestion often limits accurate identification of different teleost prey species in marine diet studies using otoliths. We evaluated the use of fine-scale shape and trace element variation in digested otoliths to identify fish prey species from the diet of predators. Fourier analysis of otolith shape revealed significant variation between red cod ( Pseudophycis bachus ) and bearded rock cod ( Pseudophycis barbata ) otoliths. Incorporating otoliths that had been consumed by Australian fur seals ( Arctocephalus pusillus doriferus ) into

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5

Brown, Randy, and Kenneth P. Severin. "Elemental distribution within polymorphic inconnu (Stenodus leucichthys) otoliths is affected by crystal structure." Canadian Journal of Fisheries and Aquatic Sciences 56, no. 10 (1999): 1898–903. http://dx.doi.org/10.1139/f99-127.

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The chemistry and crystal structure of sagittal otoliths from inconnu (Stenodus leucichthys) were examined optically, with an electron microprobe, a scanning electron microscope, and with X-ray diffraction techniques. The distributions of strontium (Sr), sodium (Na), potassium (K), and calcium (Ca) were determined with line scans and area maps of thin, transverse otolith sections. Regions depleted in Sr, Na, and K were found to be discordant with optical annuli and were optically distinct from other regions of the otoliths. These patterns of trace element depletion cannot be explained by model

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6

Heagney, Elizabeth C., Bronwyn M. Gillanders, and Iain M. Suthers. "The effect of parasitism by a blood-feeding isopod on the otolith chemistry of host fish." Marine and Freshwater Research 64, no. 1 (2013): 10. http://dx.doi.org/10.1071/mf12123.

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Otolith chemistry is widely used to discriminate fish stocks or populations, although many of the factors that determine trace-element concentrations within the otolith remain poorly understood. We investigated the effect of a blood-feeding isopod ectoparasite, Ceratothoa sp., on the otolith chemistry of yellowtail scad, Trachurus novaezelandiae. We sampled 65 fish from three subpopulations of T. novaezelandiae from Jervis Bay in south-eastern Australia, and used laser ablation (LA)–inductivelycoupled plasma mass spectrometry (ICPMS) to measure otolith lithium (Li) : calcium (Ca), magnesium (M

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7

Clarke, Lora M., Simon R. Thorrold, and David O. Conover. "Population differences in otolith chemistry have a genetic basis in Menidia menidia." Canadian Journal of Fisheries and Aquatic Sciences 68, no. 1 (2011): 105–14. http://dx.doi.org/10.1139/f10-147.

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The number of studies using otolith chemistry as a tool to reconstruct the environmental history of fishes and to detect population structure continues to rise, despite the fact that factors influencing otolith deposition are not fully understood. Many studies have examined the influence of environmental parameters on otolith composition, but none to date have tested the possible influence of intrinsic factors. Using lab broodstock populations, we examined the influence of genetics and temperature on Mg:Ca, Mn:Ca, Sr:Ca, and Ba:Ca concentrations and partition coefficients in the otoliths of ju

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8

Barnes, Thomas C., and Bronwyn M. Gillanders. "Combined effects of extrinsic and intrinsic factors on otolith chemistry: implications for environmental reconstructions." Canadian Journal of Fisheries and Aquatic Sciences 70, no. 8 (2013): 1159–66. http://dx.doi.org/10.1139/cjfas-2012-0442.

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Otolith chemistry is widely used to understand patterns of fish movement and habitat use, with significant progress made in understanding the influence of environmental factors on otolith elemental uptake. However, few studies consider the interactive effect that environmental and genetic influences have on otolith chemistry. This study assessed the influence of salinity, temperature, and genetics on the incorporation of three key elements (strontium (Sr), barium (Ba), and magnesium (Mg)) into the otoliths of two discrete stocks of mulloway (Argyrosomus japonicus) fingerlings reared in captivi

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9

Nazir, Aafaq, and Mohammad Afzal Khan. "Using otoliths for fish stock discrimination: status and challenges." Acta Ichthyologica et Piscatoria 51, no. 2 (2021): 199–218. http://dx.doi.org/10.3897/aiep.51.64166.

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Otoliths are calcified structures and the information contained within their chemistry or shape can be used to infer life history events, migration patterns, and stock structure of a fish population. Understanding how otolith chemistry is affected by temperature, salinity, interactive effects of abiotic factors, ontogeny, physiology, etc. is essential for the reconstruction of the environment that affected the fish. Otolith shape is also affected by environmental conditions in addition to the genotype. The applications of otolith chemistry and shape for stock discrimination have increased in r

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10

McFadden, A., B. Wade, C. Izzo, B. M. Gillanders, C. E. Lenehan, and A. Pring. "Quantitative electron microprobe mapping of otoliths suggests elemental incorporation is affected by organic matrices: implications for the interpretation of otolith chemistry." Marine and Freshwater Research 67, no. 7 (2016): 889. http://dx.doi.org/10.1071/mf15074.

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In an effort to understand the mechanism of otolith elemental incorporation, the distribution of strontium (Sr) and sulfur (S) in otoliths of Platycephalus bassensis was investigated in conjunction with otolith growth patterns. Optimisation of electron probe microanalysis (EPMA) quantitative mapping achieved both high spatial resolution (<3µm) and two-dimensional visualisation of the fine scale Sr and S distributions in otoliths of P. bassensis with minimal damage. Electron backscatter diffraction (EBSD) mapping confirmed that grain growth is aligned with the otolith c-axis, with grain orie

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11

Campana, Steven E., and Simon R. Thorrold. "Otoliths, increments, and elements: keys to a comprehensive understanding of fish populations?" Canadian Journal of Fisheries and Aquatic Sciences 58, no. 1 (2001): 30–38. http://dx.doi.org/10.1139/f00-177.

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The chronological properties of otoliths are unparalleled in the animal world, allowing accurate estimates of age and growth at both the daily and the yearly scale. Based on the successes of calcified structures as environmental proxies in other taxa, it was logical that researchers should attempt to link otolith biochronologies with otolith chemistry. With the benefit of hindsight, this anticipation may have been naive. For instance, the concentrations of many elements are lower in the otolith than in corals, bivalves, seal teeth, or the other bony structures of fish, making them less than id

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12

Wells, R. J. David, Michael J. Kinney, Suzanne Kohin, Heidi Dewar, Jay R. Rooker, and Owyn E. Snodgrass. "Natural tracers reveal population structure of albacore (Thunnus alalunga) in the eastern North Pacific." ICES Journal of Marine Science 72, no. 7 (2015): 2118–27. http://dx.doi.org/10.1093/icesjms/fsv051.

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Abstract Chemical signatures in otoliths and muscle tissue of albacore (Thunnus alalunga) from two regions of the North Pacific were characterized to examine population structure. Regions included northern (offshore northwest United States and Canada, &gt;40°N) and southern (offshore southwest United States and Mexico, &lt;40°N) areas where albacore have demonstrated region-specific differences in movement and size at age. Juvenile (ages 1–4 years) albacore were collected from each region through recreational and commercial fisheries over a 5-year period (2009–2013). Three different ot

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13

Artetxe-Arrate, I., I. Fraile, N. Clear, et al. "Discrimination of yellowfin tuna Thunnus albacares between nursery areas in the Indian Ocean using otolith chemistry." Marine Ecology Progress Series 673 (September 2, 2021): 165–81. http://dx.doi.org/10.3354/meps13769.

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Yellowfin tuna Thunnus albacares is a highly exploited species in the Indian Ocean. Yet, its stock structure is still not well understood, hindering assessment of the stock at a suitable spatial scale for management. Here, young-of-the-year (<4 mo) yellowfin tuna otoliths were collected in 2018 and 2019, from 4 major nursery areas in the Indian Ocean: Madagascar, Seychelles-Somalia, Maldives and Sumatra. First, direct age estimates were made in a subset of otoliths by visually counting microincrements to identify the portion of the otolith corresponding to the larval stage. We then develope

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14

Walther, Benjamin D. "The art of otolith chemistry: interpreting patterns by integrating perspectives." Marine and Freshwater Research 70, no. 12 (2019): 1643. http://dx.doi.org/10.1071/mf18270.

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The ability to obtain high-resolution chemical profiles across otoliths has expanded with technological advancements that prompted an explosion of data from diverse taxa in coastal, marine and freshwater systems worldwide. The questions pursued by most otolith chemists fall broadly into six categories: identifying origins, tracking migration, reconstructing environments, quantifying growth or physiology, validating ages and assessing diets. Advances in instrumentation have widened the periodic table of otolith elements, and two-dimensional mapping has further illuminated spatial heterogeneity

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15

Munday, P. L., V. Hernaman, D. L. Dixson, and S. R. Thorrold. "Effect of ocean acidification on otolith development in larvae of a tropical marine fish." Biogeosciences Discussions 8, no. 2 (2011): 2329–56. http://dx.doi.org/10.5194/bgd-8-2329-2011.

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Abstract. Calcification in many invertebrate species is predicted to decline due to ocean acidification. The potential effects of elevated pCO2 and reduced carbonate saturation state on other species, such as fish, are less well understood. Fish otoliths (earbones) are composed of aragonite, and thus, might be susceptible to either the reduced availability of carbonate ions in seawater at low pH, or to changes in extracellular concentrations of bicarbonate and carbonate ions caused by acid-base regulation in fish exposed to high pCO2. We reared larvae of the clownfish Amphiprion percula from h

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Munday, P. L., V. Hernaman, D. L. Dixson, and S. R. Thorrold. "Effect of ocean acidification on otolith development in larvae of a tropical marine fish." Biogeosciences 8, no. 6 (2011): 1631–41. http://dx.doi.org/10.5194/bg-8-1631-2011.

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Abstract. Calcification in many invertebrate species is predicted to decline due to ocean acidification. The potential effects of elevated CO2 and reduced carbonate saturation state on other species, such as fish, are less well understood. Fish otoliths (earbones) are composed of aragonite, and thus, might be susceptible to either the reduced availability of carbonate ions in seawater at low pH, or to changes in extracellular concentrations of bicarbonate and carbonate ions caused by acid-base regulation in fish exposed to high pCO2. We reared larvae of the clownfish Amphiprion percula from ha

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17

Walther, Benjamin D., and Simon R. Thorrold. "Continental-scale variation in otolith geochemistry of juvenile American shad (Alosa sapidissima)." Canadian Journal of Fisheries and Aquatic Sciences 65, no. 12 (2008): 2623–35. http://dx.doi.org/10.1139/f08-164.

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We assembled a comprehensive atlas of geochemical signatures in juvenile American shad ( Alosa sapidissima ) to discriminate natal river origins on a large spatial scale and at a high spatial resolution. Otoliths and (or) water samples were collected from 20 major spawning rivers from Florida to Quebec and were analyzed for elemental (Mg:Ca, Mn:Ca, Sr:Ca, and Ba:Ca) and isotope (87Sr:86Sr and δ18O) ratios. We examined correlations between water chemistry and otolith composition for five rivers where both were sampled. While Sr:Ca, Ba:Ca, 87Sr:86Sr, and δ18O values in otoliths reflected those r

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Limburg, Karin E., and Mikael Elfman. "Patterns and magnitude of Zn:Ca in otoliths support the recent phylogenetic typology of Salmoniformes and their sister groups." Canadian Journal of Fisheries and Aquatic Sciences 67, no. 4 (2010): 597–604. http://dx.doi.org/10.1139/f10-014.

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Fish otolith chemistries are used to associate fishes with specific environments. However, otolith chemistry may also have potential as a tool in phylogenetic research, as demonstrated here in salmoniform fishes and related taxa. Two-dimensional maps of Zn:Ca otolith chemistry displayed annual oscillations in magnitude in members of the Salmoniformes (with salmons differing from whitefishes). These are also detectable in esocids, but not strongly in osmerids or in more distantly related taxa. Further, Zn:Ca magnitudes were highest in salmonids and declined in other taxa: salmonids (salmons, gr

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19

Rieman, B. E., D. L. Myers, and R. L. Nielsen. "Use of Otolith Microchemistry to Discriminate Oncorhynchus nerka of Resident and Anadromous Origin." Canadian Journal of Fisheries and Aquatic Sciences 51, no. 1 (1994): 68–77. http://dx.doi.org/10.1139/f94-009.

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We used a wavelength dispersive microprobe to describe patterns in otolith microchemistry of sockeye salmon (Oncorhyncbus nerka). Patterns in Sr/Ca ratios in transects across otoliths were consistent with changes in environmental chemistry associated with life history. The patterns we observed were consistent with those described for other salmonids. We found that Sr/Ca ratios in otolith primordia of fish of known anadromous origin were significantly higher than those in otolith primordia of fish of known resident origin. However, variation among samples was associated with differences in chem

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20

Elsdon, T. S., and B. M. Gillanders. "Consistency of patterns between laboratory experiments and field collected fish in otolith chemistry: an example and applications for salinity reconstructions." Marine and Freshwater Research 56, no. 5 (2005): 609. http://dx.doi.org/10.1071/mf04146.

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Elemental concentrations within fish otoliths can track movements and migrations of fish through gradients of environmental variables. Tracking the movements of fish relies on establishing links between environmental variables and otolith chemistry, with links commonly made using laboratory experiments that rear juvenile fish. However, laboratory experiments done on juvenile fish may not accurately reflect changes in wild fish, particularly adults. We tested the hypotheses that: (1) the relationship between ambient (water) and otolith chemistry is similar between laboratory-reared black bream

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21

Sulistyaningsih, Ririk Kartika, Bram Setyadji, Hety Hartaty, and Arief Wujdi. "Otolith shape as a tool for representing different growth in young and adult yellowfin tuna (Thunnus albacares, Bonnaterre, 1788)." E3S Web of Conferences 322 (2021): 05011. http://dx.doi.org/10.1051/e3sconf/202132205011.

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The stock status of yellowfin tuna (Thunnus albacares) (YFT) in the Indian Ocean is currently concluded overfished and is subject to overfishing. The information about the YFT population structure is fundamental for effective fisheries management and conservation. The otolith shape as a tool for estimating population structure is the cheapest technique compared to other methods, such as genetic, parasite, and otolith chemistry, especially for analyzing the large samples. This study investigates the use of otolith shapes to determine the yellowfin stock from two different locations. Data collec

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22

Morales-Nin, B., S. C. Swan, J. D. M. Gordon, et al. "Age-related trends in otolith chemistry of Merluccius merluccius from the north-eastern Atlantic Ocean and the western Mediterranean Sea." Marine and Freshwater Research 56, no. 5 (2005): 599. http://dx.doi.org/10.1071/mf04151.

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Sagittal otoliths of European hake obtained from five geographic locations in the north-eastern Atlantic and western Mediterranean were examined using laser ablation and inductively coupled plasma mass spectrometry. Otolith sections were analysed for the isotopes 24Mg, 55Mn, 66Zn, 85Rb, 86Sr, 138Ba and 208Pb, measured relative to 43Ca counts. These analyses considered only age 0 (core area) and ages 1 to 3. Age-related trends in otolith elemental composition were observed in hake from all areas, but were masked by variability between locations. Elemental concentrations generally decreased outs

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Thorisson, Konrad, Ingibjörg G. Jónsdóttir, Gudrun Marteinsdottir, and Steven E. Campana. "The use of otolith chemistry to determine the juvenile source of spawning cod in Icelandic waters." ICES Journal of Marine Science 68, no. 1 (2010): 98–106. http://dx.doi.org/10.1093/icesjms/fsq133.

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Abstract Thorisson, K., Jónsdóttir, I. G., Marteinsdottir, G., and Campana, S. E. 2011. The use of otolith chemistry to determine the juvenile source of spawning cod in Icelandic waters. – ICES Journal of Marine Science, 68: 98–106. Chemical fingerprinting was used to discriminate spatial groups of juvenile cod (Gadus morhua) and to backtrack spawning cod in Icelandic waters to their area of origin as 0-group juveniles. Juvenile 0-group cod were collected around Iceland in August 1996 and 1997 to establish the spatial distribution of otolith chemistry at the juvenile stage. Spawning cod from t

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Swan, S. C., A. J. Geffen, B. Morales-Nin, et al. "Otolith chemistry: an aid to stock separation of Helicolenus dactylopterus (bluemouth) and Merluccius merluccius (European hake) in the Northeast Atlantic and Mediterranean." ICES Journal of Marine Science 63, no. 3 (2006): 504–13. http://dx.doi.org/10.1016/j.icesjms.2005.08.012.

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Abstract Helicolenus dactylopterus and Merluccius merluccius are widely distributed on the continental slopes of the Atlantic and Mediterranean and have quite different life histories. Both are commercially exploited, but little is known about their stock structure. Fish otolith composition is thought to reflect both endogenous processes and external factors, some of which relate to the surrounding environment, and therefore may be used as a tool for stock discrimination. The elemental composition of sagittal otoliths was examined using both solution-based inductively coupled plasma mass spect

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Radtke, RL, and DJ Shafer. "Environmental sensitivity of fish Otolith Microchemistry." Marine and Freshwater Research 43, no. 5 (1992): 935. http://dx.doi.org/10.1071/mf9920935.

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A considerable aggregate of life-history, environmental and physiological information is incorporated within fish otoliths. This information may be discerned when appropriate analytical methods, based on an understanding of the mechanisms underlying changes in the structure and chemistry of otoliths, are utilized. Deposition of otolith carbonate may be regulated by many interacting factors, including age, physiology, environmental stress, availability of nourishment, ambient temperature, diurnal and seasonal cycles, and activity levels of individual fish. Complex interactions between genomic c

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Kajajian, Antranik, Jason J. Schaffler, and Cynthia M. Jones. "Lack of equivalence in the elemental and stable isotope chemistry within the sagittal otolith pair of the summer flounder, Paralichthys dentatus." ICES Journal of Marine Science 71, no. 2 (2013): 356–64. http://dx.doi.org/10.1093/icesjms/fst145.

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Abstract Kajajian, A., Schaffler, J. J., and Jones, C. M. 2014. Lack of equivalence in the elemental and stable isotope chemistry within the sagittal otolith pair of the summer flounder, Paralichthys dentatus. – ICES Journal of Marine Science, 71: 356–364. In fish that are not bilaterally symmetrical, the left and right sagittae are often not symmetrical, exhibiting divergent growth patterns and mass, and may have differences in chemical composition. We investigated this in the asymmetrical summer flounder Paralichthys dentatus, collected from different nursery habitats along the US east coast

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Kalish, J. M. "Fish Otolith Chemistry." Science 260, no. 5106 (1993): 279. http://dx.doi.org/10.1126/science.260.5106.279.

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Hamer, Paul, Angela Henderson, Michael Hutchison, Jodie Kemp, Corey Green, and Pierre Feutry. "Atypical correlation of otolith strontium : calcium and barium : calcium across a marine–freshwater life history transition of a diadromous fish." Marine and Freshwater Research 66, no. 5 (2015): 411. http://dx.doi.org/10.1071/mf14001.

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Variation in strontium (Sr) and barium (Ba) within otoliths is invaluable to studies of fish diadromy. Typically, otolith Sr:Ca is positively related to salinity, and the ratios of Ba and Sr to calcium (Ca) vary in opposite directions in relation to salinity. In this study of jungle perch, Kuhlia rupestris, otolith Sr:Ca and Ba:Ca, however, showed the same rapid increase as late-larval stages transitioned directly from a marine to freshwater environment. This transition was indicated by a microstructural check mark on otoliths at 35–45 days age. As expected ambient Sr was lower in the fresh th

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Rakocinski, Chet F., Bruce H. Comyns, Mark S. Peterson, and Alan M. Shiller. "Regional Patterns in the Otolith Chemistry of Juvenile Spotted Seatrout (Cynoscion nebulosus) Differ under Contrasting Hydrological Regimes." Open Fish Science Journal 8, no. 1 (2015): 1–12. http://dx.doi.org/10.2174/1874401x01508010001.

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The value of using otolith chemistry to characterize recruitment in terms of natal source regions depends on how consistently spatio-temporal variation can be resolved. The objective of this study was to compare regional classification patterns in the otolith chemistry of juvenile Spotted Seatrout (Cynoscion nebulosus) between two years experiencing disparate hydrological regimes, and separated by a five year interlude. Spatial patterns in the whole-otolith chemistry of juveniles of this estuarine-dependent species were compared between years using five otolith elements and two stable isotopes

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Fraile, Igaratza, Haritz Arrizabalaga, Josu Santiago, et al. "Otolith chemistry as an indicator of movements of albacore (Thunnus alalunga) in the North Atlantic Ocean." Marine and Freshwater Research 67, no. 7 (2016): 1002. http://dx.doi.org/10.1071/mf15097.

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Albacore (Thunnus alalunga) in the North Atlantic Ocean is currently managed as a single well-mixed stock, although this assumption remains contentious. We measured stable isotopes (δ13C and δ18O) and trace elements (Mg, Mn, Sr, Ba) in otoliths of albacore collected from two feeding grounds, namely the Bay of Biscay and Atlantic offshore waters, and compared them among sampling locations and life history stages. Measurements in otolith core, post-core and edge were used to determine whether albacore from these two regions have the same nursery origin and migratory patterns. We found no clear e

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Sanchez, PJ, JR Rooker, M. Zapp Sluis, et al. "Application of otolith chemistry at multiple life history stages to assess population structure of Warsaw grouper in the Gulf of Mexico." Marine Ecology Progress Series 651 (October 1, 2020): 111–23. http://dx.doi.org/10.3354/meps13457.

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Chemical markers in otoliths have been used to assess the stock structure of many marine fishes, but these natural markers have yet to be widely evaluated or applied to demersal fishes in offshore habitats where physicochemical gradients are generally less pronounced relative to nearshore waters. To address this, we quantified trace elements (Li, Mg, Mn, Co, Cu, Zn, Sr, Ba) and stable isotopes (δ13C and δ18O) in otoliths of Warsaw grouper Hyporthodus nigritus from 4 regions in the Gulf of Mexico (Texas, Louisiana, Alabama-NW Florida, and SW Florida). Region-specific differences in otolith chem

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Crook, David A., Jed I. Macdonald, Dale G. McNeil, et al. "Recruitment sources and dispersal of an invasive fish in a large river system as revealed by otolith chemistry analysis." Canadian Journal of Fisheries and Aquatic Sciences 70, no. 7 (2013): 953–63. http://dx.doi.org/10.1139/cjfas-2012-0504.

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The contributions of nursery habitats to recruitment of non-native common carp (Cyprinus carpio) were estimated via analysis of water and otolith 87Sr/86Sr and otolith trace element concentrations (Mg:Ca, Mn:Ca, Sr:Ca, Ba:Ca) over 3 years in the Lachlan River, Australia. Water samples and otoliths of postlarval carp were analyzed to characterize 87Sr/86Sr and multi-elemental signatures of nursery habitats. Considerable temporal variation occurred in both water 87Sr/86Sr and otolith multi-elemental signatures, which limited our ability to directly match water and otolith 87Sr/86Sr in nurseries

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Chen, Kuan-Yu, Stuart A. Ludsin, Morgan M. Corey, et al. "Experimental and field evaluation of otolith strontium as a marker to discriminate between river-spawning populations of walleye in Lake Erie." Canadian Journal of Fisheries and Aquatic Sciences 74, no. 5 (2017): 693–701. http://dx.doi.org/10.1139/cjfas-2015-0565.

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Otolith microchemistry is a commonly used tool for stock discrimination in fisheries management. Two key questions remain with respect to its effectiveness in discriminating among river-spawning populations. First, do larvae remain in their natal river long enough for their otoliths to pick up that system’s characteristic chemical signature? Second, are larval otolith microchemical differences between natal rivers sufficiently large to overcome spatiotemporal variation in water chemistry? We quantified how larval age, the ratio of ambient strontium to calcium concentrations (Sr:Ca), and water

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Miles, N. G., R. J. West, and M. D. Norman. "Does otolith chemistry indicate diadromous lifecycles for five Australian riverine fishes?" Marine and Freshwater Research 60, no. 9 (2009): 904. http://dx.doi.org/10.1071/mf08252.

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Diadromy is an important characteristic of the lifecycle of many Australian coastal fishes, but many of these species remain poorly studied. The migratory patterns of five riverine fish species from south-eastern Australia were examined using otolith chemistry. Analyses of individual otoliths from wild-caught fishes revealed distinctive lateral variation in otolith Sr : Ca values that provide good evidence for an amphidromous lifecycle for two species: Myxus petardi and Gobiomorphus australis. Gobiomorphus coxii, Potamalosa richmondia and Notesthes robusta displayed Sr : Ca patterns that indic

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Hegg, Jens C., Brian P. Kennedy, and Paul Chittaro. "What did you say about my mother? The complexities of maternally derived chemical signatures in otoliths." Canadian Journal of Fisheries and Aquatic Sciences 76, no. 1 (2019): 81–94. http://dx.doi.org/10.1139/cjfas-2017-0341.

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Connecting maternal migratory behavior with the behavior and ecology of their progeny can reveal important details in the ecology of a population. One method for linking maternal migration to early juvenile life history is through maternal chemistry recorded in otoliths. Despite the wide use of maternal signatures to infer anadromy, the duration and dynamics of maternal otolith signatures are not well understood. Shifts in the elemental ratios and strontium isotope (87Sr/86Sr) chemistry in otoliths from juvenile Chinook salmon (Oncorhynchus tshawytscha) correlate with the timing of hatch and e

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Rogers, Troy A., Anthony J. Fowler, Michael A. Steer, and Bronwyn M. Gillanders. "Resolving the early life history of King George whiting (Sillaginodes punctatus: Perciformes) using otolith microstructure and trace element chemistry." Marine and Freshwater Research 70, no. 12 (2019): 1659. http://dx.doi.org/10.1071/mf18280.

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Understanding the early life history processes of fish that lead to recruitment is critical for understanding population dynamics. This study explored the early life history of King George whiting (Sillaginodes punctatus) that recruited to an important nursery area in South Australia in 2016 and 2017. The early life history was reconstructed based on the retrospective analysis of otolith microstructure and chemistry for settlement-stage larvae collected fortnightly from July to November. These fish hatched between March and July, but a 3-week period in May led to 52–71% of recruitment. Recruit

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Dorval, Emmanis, Cynthia M. Jones, Robyn Hannigan, and Jacques van Montfrans. "Can otolith chemistry be used for identifying essential seagrass habitats for juvenile spotted seatrout, Cynoscion nebulosus, in Chesapeake Bay?" Marine and Freshwater Research 56, no. 5 (2005): 645. http://dx.doi.org/10.1071/mf04179.

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We investigated the variability of otolith chemistry in juvenile spotted seatrout from Chesapeake Bay seagrass habitats in 1998 and 2001, to assess whether otolith elemental and isotopic composition could be used to identify the most essential seagrass habitats for those juvenile fish. Otolith chemistry (Ca, Mn, Sr, Ba, and La; δ13C, δ18O) of juvenile fish collected in the five major seagrass habitats (Potomac, Rappahannock, York, Island, and Pocomoke Sound) showed significant variability within and between years. Although the ability of trace elements to allocate individual fish may vary betw

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Elsdon, Travis S., and Bronwyn M. Gillanders. "Interactive effects of temperature and salinity on otolith chemistry: challenges for determining environmental histories of fish." Canadian Journal of Fisheries and Aquatic Sciences 59, no. 11 (2002): 1796–808. http://dx.doi.org/10.1139/f02-154.

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The concentrations of elements and isotopes in fish otoliths may provide a method of reconstructing movements of fish by differentiating between water bodies of different temperatures and salinities. However, before otoliths can be used to reconstruct environmental histories of fish, it is necessary to assess the effects of seawater temperature and salinity on otolith microchemistry. Using controlled laboratory experiments, juvenile black bream, Acanthopagrus butcheri (family Sparidae), were reared for 50 days in aquaria of varying temperatures and salinities using three experimental designs:

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Crook, D. A., D. J. Buckle, Q. Allsop, et al. "Use of otolith chemistry and acoustic telemetry to elucidate migratory contingents in barramundi Lates calcarifer." Marine and Freshwater Research 68, no. 8 (2017): 1554. http://dx.doi.org/10.1071/mf16177.

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Migration is a fundamental aspect of the life history of many fish and must be well understood for targeted conservation and management. We used acoustic telemetry and otolith 87Sr/86Sr analysis, in conjunction with annual ageing, to study intraspecific variation in barramundi Lates calcarifer migration in the Northern Territory, Australia. Acoustic transmitters were implanted into 25 barramundi (420–1010-mm total length (TL); median 510mm TL) from freshwater reaches of the South Alligator River and their movements tracked over >2 years. 87Sr/86Sr transect analysis was also conducted on oto

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Condini, Mario V., Paula E. R. Pereyra, Alexandre M. Garcia, et al. "Use of fresh water by an estuarine-resident marine catfish: evidence from gonadal and otolith chemistry analyses." Journal of the Marine Biological Association of the United Kingdom 99, no. 7 (2019): 1667–74. http://dx.doi.org/10.1017/s0025315419000493.

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AbstractIn this study, we examine how the Guri catfish Genidens genidens uses estuarine and freshwater habitats along the largest South American coastal lagoon, through the chemical analysis of otoliths and microscopic analysis of gonads. Chemical composition (Sr:Ca) of otolith edges allowed distinguishing between individuals who used the estuarine or freshwater compartments of the lagoon. The analysis of core-to-edge chemical profiles of each individual otolith revealed that the population may present two different patterns of habitat use along the lagoon. The ‘type 1’ pattern (89.5%) include

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Thomas, ORB, KV Thomas, GP Jenkins, and SE Swearer. "Spatio-temporal resolution of spawning and larval nursery habitats using otolith microchemistry is element dependent." Marine Ecology Progress Series 636 (February 20, 2020): 169–87. http://dx.doi.org/10.3354/meps13229.

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Otolith chemistry is frequently employed in the reconstruction of fish environmental histories. While some elements have been strongly correlated with environmental factors (e.g. salinity, temperature, water chemistry), others may not indicate exogenous factors and simply add endogenous variability to a data set. Several commonly assessed elements were previously identified as being only present in the proteinaceous fraction of endolymph from black bream Acanthopagrus butcheri, suggesting that the choice of elements in otolith multi-elemental fingerprinting could influence their utility as nat

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Gleason, Christine M., Brenda L. Norcross, and Karen J. Spaleta. "Otolith chemistry discriminates water mass occupancy of Arctic fish in the Chukchi Sea." Marine and Freshwater Research 67, no. 7 (2016): 967. http://dx.doi.org/10.1071/mf15084.

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The microchemistry of otoliths has the potential to reconstruct fish movement patterns and habitat use between environmentally different habitats for individual age classes of Arctic marine fish. Herein, we tested the relationship between the bottom water mass from which a fish was collected and the microchemistry of the most recent growth edge of the fish’s otolith using Mg, Sr, Ba and Ca, and then determined the physical and biological factors that affected the chemical signatures. A discriminant function post hoc analysis of fish occupying bottom water masses resulted in 76% correct classif

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Martino, Jasmin C., Zoë A. Doubleday, Anthony J. Fowler, and Bronwyn M. Gillanders. "Corrigendum to: Identifying physiological and environmental influences on otolith chemistry in a coastal fishery species." Marine and Freshwater Research 72, no. 6 (2021): 922. http://dx.doi.org/10.1071/mf20196_co.

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Otolith (ear stone) chemistry provides powerful insights into the lives of fish. Although frequently used to reconstruct past environments, the influence of physiology remains unsettled. As such, we investigated the relationships between otolith chemistry, physiological factors and environmental factors in an iconic fishery species, snapper (Chrysophrys auratus). Lifetime otolith profiles were analysed of carbon (δ13C) and oxygen (δ18O) isotopes, and elemental concentrations of lithium (Li:Ca), magnesium (Mg:Ca), manganese (Mn:Ca), strontium (Sr:Ca), and barium (Ba:Ca). Mixed-effects modelling

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Mahé, Kélig, Kirsteen MacKenzie, Djamila Ider, et al. "Directional Bilateral Asymmetry in Fish Otolith: A Potential Tool to Evaluate Stock Boundaries?" Symmetry 13, no. 6 (2021): 987. http://dx.doi.org/10.3390/sym13060987.

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The otolith, found in both inner ears of bony fish, has mainly been used to estimate fish age. Another application that has been developing significantly in recent years, however, is the use of otolith shape as a tool for stock identification. Often, studies have directly used the shape asymmetry between the right and left otoliths. We tested the magnitude of directional asymmetry between the sagittal otoliths (left vs. right) of 2991 individuals according to their catch locations, and we selected species to evaluate whether directional asymmetry may itself be a tool to evaluate stock boundari

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Thorrold, Simon R., and Stephen Shuttleworth. "In situ analysis of trace elements and isotope ratios in fish otoliths using laser ablation sector field inductively coupled plasma mass spectrometry." Canadian Journal of Fisheries and Aquatic Sciences 57, no. 6 (2000): 1232–42. http://dx.doi.org/10.1139/f00-054.

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We applied laser ablation sector field inductively coupled plasma mass spectrometry (SF-ICP-MS) to the analysis of trace element and isotopic signatures in fish otoliths. Manganese, Sr, and Ba profiles across juvenile Atlantic croaker (Micropogonias undulatus) otoliths, expressed as ratios to Ca, showed considerable spatial and temporal variations that were presumably reflective of variations in water chemistry over the same scales. Differences in otolith Mn:Ca ratios between adjacent rivers in Pamlico Sound, North Carolina, may be related to dissolved oxygen levels in the rivers through reduc

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Jenkins, GP, PA Hamer, JA Kent, J. Kemp, CDH Sherman, and AJ Fowler. "Spawning sources of a coastal fishery species inferred from otolith chemistry and microstructure: implications for management." Marine Ecology Progress Series 684 (February 17, 2022): 103–16. http://dx.doi.org/10.3354/meps13952.

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Spawning sources of King George whiting Sillaginodes punctatus populations in the states of South Australia and Victoria (south-eastern Australia) were analysed using otolith chemistry and microstructure from post-larvae sampled from 3 nursery areas in each state in the spring of 2011 and 2012. Univariate and multivariate analysis of the chemistry of the core region of otoliths showed differences between states, particularly for the 2011 cohort, primarily related to higher Mg in South Australian samples, while differences in Sr and Zn also made a contribution. Even though spawning times overla

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Munro, Andrew R., Thomas E. McMahon, and James R. Ruzycki. "Natural chemical markers identify source and date of introduction of an exotic species: lake trout (Salvelinus namaycush) in Yellowstone Lake." Canadian Journal of Fisheries and Aquatic Sciences 62, no. 1 (2005): 79–87. http://dx.doi.org/10.1139/f04-174.

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Exotic species invasions pose a pervasive threat to aquatic ecosystems worldwide, yet fundamental questions about the geographic origin and timing of invasions or introductions are frequently difficult to answer. We used natural chemical markers (Sr:Ca ratios) in otoliths to identify probable source and date of introduction of exotic lake trout (Salvelinus namaycush) into Yellowstone Lake, Wyoming, USA. Otolith Sr:Ca ratios were significantly different among lake trout known to have reared in three different Yellowstone National Park lakes (Yellowstone, Heart, and Lewis lakes) and showed littl

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Vrdoljak, Dario, Sanja Matić-Skoko, Melita Peharda, et al. "Otolith Fingerprints and Tissue Stable Isotope Information Enable Allocation of Juvenile Fishes to Different Nursery Areas." Water 13, no. 9 (2021): 1293. http://dx.doi.org/10.3390/w13091293.

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Integrated otolith chemistry and muscle tissue stable isotope analyses were performed to allocate juvenile Diplodus puntazzo and Diplodus vulgaris to nurseries in the Adriatic Sea. Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) was used to quantify the concentrations of chemical elements in the otoliths. Fish muscle samples were analysed for δ13C and δ15N. In general, Ba/Ca and Sr/Ca ratios and isotopes varied between sites and species. Values of δ13C and δ15N were significantly different between species and sites. Multivariate analysis detected a significant differenc

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Benson, Irina M., Beverly K. Barnett, and Thomas E. Helser. "Classification of fish species from different ecosystems using the near infrared diffuse reflectance spectra of otoliths." Journal of Near Infrared Spectroscopy 28, no. 4 (2020): 224–35. http://dx.doi.org/10.1177/0967033520935999.

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Applications of Fourier transform near infrared (FT-NIR) spectroscopy in fisheries science are currently limited. This current analysis of otolith spectral data demonstrate the potential applicability of FT-NIR spectroscopy to otolith chemistry and spatial variability in fisheries science. The objective of this study was to examine the use of NIR spectroscopy as a tool to differentiate among marine fishes in four large marine ecosystems. We examined otoliths from 13 different species, with three of these species coming from different regions. Principal component analysis described the main dir

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Patterson, Heather M., Michael J. Kingsford, and Malcolm T. McCulloch. "The influence of oceanic and lagoonal plume waters on otolith chemistry." Canadian Journal of Fisheries and Aquatic Sciences 61, no. 6 (2004): 898–904. http://dx.doi.org/10.1139/f04-036.

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To determine how ocean and lagoonal plume waters from within the same reef were reflected in the chemical composition of otoliths, we conducted an experiment over three consecutive summers where conditions of temperature and food were held constant. Presettlement Pomacentrus coelestis were held in replicate tanks of the two water masses for 9 days. The sagittae were then analyzed at high spatial resolution (5 µm × 50 µm × 4 µm) using laser ablation inductively coupled plasma mass spectrometry. Ba/Ca and Sr/Ca varied between water masses and the rank of these elemental ratios changed among year

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