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Showing 1 to 8 of 8 for “"Otolith chemistry"”.
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Spatial structuring and patterns of connectivity among Antarctic toothfish (Dissostichus mawsoni) stocks in the Southern Ocean: a view through otolith chemistry
… populations. To that end, this study used fish otoliths (ear bones) and laser ablation inductively coupled mass spectrometry (LA-ICP-MS) to determine life history aspects of Antarctic toothfish. The first research chapter (Chapter 2) tests the efficacy of otolith microchemistry techniques by …
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Relating Water and Otolith Chemistry in Chesapeake Bay, and Their Potential to Identify Essential Seagrass Habitats for Juveniles of an Estuarine-Dependent Fish, Spotted Seatrout (<i>Cynoscion nebulosus</i>)
… the habitat-specific natural tags contained in otoliths. To this aim I investigated the variability in the chemistry of surface waters and otoliths of juvenile spotted seatrout, <em>Cynoscion nebulosus</em>, in five seagrass habitats of Chesapeake Bay, namely: Potomac, Rappahannock, York, …
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Biotic and abiotic interactions of deep-sea hydrothermal vent-endemic fish on the East Pacific Rise
… elucidate prey choice and trophic relationships. Otolith chemical signatures were investigated to determine whether this technique could be utilized to examine life history strategy and habitat use. Chemical characteristics of preferred fish habitat and gene expression responses habitat chemistry …
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Biotic and abiotic interactions of deep-sea hydrothermal vent-endemic fish on the East Pacific Rise
… elucidate prey choice and trophic relationships. Otolith chemical signatures were investigated to determine whether this technique could be utilized to examine life history strategy and habitat use. Chemical characteristics of preferred fish habitat and gene expression responses habitat chemistry …
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Arctic Char Otolith Records of Recent Limnological Change in High Arctic Lakes
… the top predatory fish in Arctic lakes. Otoliths, the inner ear bones of fish, offer a method to monitor these impacts through chemical analysis of their annual rings. However, not only are long-term limnological records in the Arctic limited, but the impacts of climate-driven change on …
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Evaluating Methods for Optimizing Classification Success From Otolith Tracers for Spotted Seatrout (<i>Cynoscion nebulosus</i>) in the Chesapeake Bay
… effective management. Within the last decade, otolith chemistry signatures have been increasingly used as a natural marker to delineate fish from a mixture of nursery sources. Despite the widespread use of otolith trace element and stable isotope ratios as habitat markers, the statistical …
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Coal Combustion Residuals in Receiving Lake Ecosystems: Trophic Transfer, Toxicity, and Tracers
… into the lattice of metabolically-stable fish otoliths, providing unique records of fishes’ lifetime exposure history. Two distinct otolith applications are explored here. First, time series otolith concentrations of a subset of CCRs were compared to overlapping time series of CFPP loading data …
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The Impact of Multiple Nursery Areas on the Population Structure of Atlantic Menhaden, <i>Brevooria tyrannus</i>
… and δ<sup>18</sup>O) signatures in otoliths to distinguish between coast-wide nursery grounds of menhaden for 2009-2011. Using geochemical signatures specific to each year, juvenile menhaden collected from Connecticut to South Carolina were classified to regional nursery grounds at …