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  • 1
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    An endless frontier postponed (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-05-10
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lazowska, Edward D -- Patterson, David A -- New York, N.Y. -- Science. 2005 May 6;308(5723):757.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15879176" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Genomic signatures predict migration and spawning failure in wild Canadian salmon (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-01-15
    Description: Long-term population viability of Fraser River sockeye salmon (Oncorhynchus nerka) is threatened by unusually high levels of mortality as they swim to their spawning areas before they spawn. Functional genomic studies on biopsied gill tissue from tagged wild adults that were tracked through ocean and river environments revealed physiological profiles predictive of successful migration and spawning. We identified a common genomic profile that was correlated with survival in each study. In ocean-tagged fish, a mortality-related genomic signature was associated with a 13.5-fold greater chance of dying en route. In river-tagged fish, the same genomic signature was associated with a 50% increase in mortality before reaching the spawning grounds in one of three stocks tested. At the spawning grounds, the same signature was associated with 3.7-fold greater odds of dying without spawning. Functional analysis raises the possibility that the mortality-related signature reflects a viral infection.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, Kristina M -- Li, Shaorong -- Kaukinen, Karia H -- Ginther, Norma -- Hammill, Edd -- Curtis, Janelle M R -- Patterson, David A -- Sierocinski, Thomas -- Donnison, Louise -- Pavlidis, Paul -- Hinch, Scott G -- Hruska, Kimberly A -- Cooke, Steven J -- English, Karl K -- Farrell, Anthony P -- New York, N.Y. -- Science. 2011 Jan 14;331(6014):214-7. doi: 10.1126/science.1196901.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Molecular Genetics Section, Pacific Biological Station, 3190 Hammond Bay Road, Fisheries and Oceans Canada, Nanaimo, BC V9T 6N7, Canada. kristi.miller@dfo-mpo.gc.ca〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21233388" target="_blank"〉PubMed〈/a〉
    Keywords: *Animal Migration ; Animals ; Canada ; Female ; Fish Diseases/genetics/immunology/mortality ; *Gene Expression ; *Gene Expression Profiling ; Genome ; Gills ; Male ; Mortality ; Oligonucleotide Array Sequence Analysis ; Pacific Ocean ; Population Dynamics ; Principal Component Analysis ; Remote Sensing Technology ; *Reproduction ; Rivers ; Salmon/*genetics/*physiology ; Stress, Physiological ; Survival Analysis ; Virus Diseases/genetics/immunology/mortality/veterinary
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Differences in thermal tolerance among sockeye salmon populations (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-04-02
    Description: Climate change-induced increases in summer water temperature have been associated with elevated mortality of adult sockeye salmon (Oncorhynchus nerka) during river migration. We show that cardiorespiratory physiology varies at the population level among Fraser River sockeye salmon and relates to historical environmental conditions encountered while migrating. Fish from populations with more challenging migratory environments have greater aerobic scope, larger hearts, and better coronary supply. Furthermore, thermal optima for aerobic, cardiac, and heart rate scopes are consistent with the historic river temperature ranges for each population. This study suggests that physiological adaptation occurs at a very local scale, with population-specific thermal limits being set by physiological limitations in aerobic performance, possibly due to cardiac collapse at high temperatures.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Eliason, Erika J -- Clark, Timothy D -- Hague, Merran J -- Hanson, Linda M -- Gallagher, Zoe S -- Jeffries, Ken M -- Gale, Marika K -- Patterson, David A -- Hinch, Scott G -- Farrell, Anthony P -- New York, N.Y. -- Science. 2011 Apr 1;332(6025):109-12. doi: 10.1126/science.1199158.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, University of British Columbia, 6270 University Boulevard, Vancouver, BC, Canada, V6T 1Z4. eliason@zoology.ubc.ca〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21454790" target="_blank"〉PubMed〈/a〉
    Keywords: *Adaptation, Physiological ; Animal Migration ; Animals ; Climate Change ; Heart/physiology ; Population Dynamics ; Salmon/*physiology ; Species Specificity ; *Temperature
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 4
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    Individual isotopic specialisations predict subsequent inter-individual variation in movement in a freshwater fish (2016)
    Wiley
    In: Ecology
    Details
    Publication Date: 2016-12-17
    Description: Despite many similarities and intuitive links between individual dietary specialisation and behavioural inter-individual variation, these phenomena have been studied in isolation, and empirical data confirming relationships between these intraspecific variance sources are lacking. Here we use stable isotope analysis and acoustic telemetry to test the hypothesis that individual specialisation in trophic (δ 15 N) and littoral/pelagic prey reliance (δ 13 C) co-vary with inter-individual variation in movement in a group of 34 free-swimming burbot ( Lota lota ). By performing stable isotope analysis on tissues with differing isotopic turnover rates (anal fin and dorsal muscle), in 24 lethally sampled burbot, we demonstrate that temporally consistent IS in trophic niche (δ 15 N) and littoral/pelagic prey reliance (δ 13 C) occurred within the population. By performing stable isotope analysis on anal fins of a group of telemetry tagged burbot, we were able to show that interactions between trophic niche and littoral/pelagic prey reliance, explained a significant proportion of the subsequent between-individual variance in mean movement rates. These findings demonstrate an empirical connection between behavioural inter-individual variation and dietary specialisation, thus providing a substantial expansion of our understanding of the wider ecological consequences of these interesting phenomena. This article is protected by copyright. All rights reserved.
    Print ISSN: 0012-9658
    Electronic ISSN: 1939-9170
    Topics: Biology
    Published by Wiley on behalf of The Ecological Society of America (ESA).
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  • 5
    Electronic Resource
    Electronic Resource
    The effect of exercise and captivity on energy partitioning, reproductive maturation and fertilization success in adult sockeye salmon (2004)
    Oxford, UK; Malden, USA : Blackwell Science Ltd/Inc.
    Journal of fish biology 64 (2004), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Releasing a population of adult Fraser River sockeye salmon Oncorhynchus nerka from an energetically more expensive non-feeding natural migration (1089 km, natal groups) and allowing them to sexually mature in either a moderate flow (captive exercise group) or a no flow (captive non-exercise group) environment resulted in significant differences in body energy densities (MJ kg−1) among groups (ranked: initial natural migrator 〉 non-exercise 〉 exercise 〉 natal arrivals). Similarly, per cent body lipids were significantly lower in exercise females compared with non-exercise females, experimentally confirming the central role lipid catabolism has in powering swimming. Although restricting exercise did result in greater body energy reserves at spawning, this did not result in a reallocation of energy to reproduction, as fecundity, egg size and gonad composition were unchanged among the groups. Furthermore, non-exercise females had delayed maturity, lower egg deposition rates, and were more likely to die prior to egg ovulation than exercise females and natal spawners. Eggs from captive exercise adult females were more likely to survive to the eyed stage than eggs from captive non-exercise females, but both captive groups had significantly lower egg fertilization success than natal spawners suggesting that confinement stress played a role in some of results presented. There were no significant differences in plasma levels of glucose, lactate, cortisol and reproductive hormones among the groups, but correlations among acute and chronic indicators of stress were significant among individuals. These results indicate that exercise during the late stages of maturation, as might occur normally, may be required for optimizing reproductive maturation and maximizing reproductive success.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.2004.0370.x
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  • 6
    Electronic Resource
    Electronic Resource
    Coupling non-invasive physiological assessments with telemetry to understand inter-individual variation in behaviour and survivorship of sockeye salmon: development and validation of a technique (2005)
    Oxford, UK; Malden, USA : Blackwell Science Ltd
    Journal of fish biology 67 (2005), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Approximately 200 km from the mouth of the Fraser River, British Columbia, Canada, adult sockeye salmon Oncorhynchus nerka, were gastrically implanted with radio transmitters without anaesthetic. Subsets of the transmitter implanted fish were also biopsied which included drawing blood from the caudal peduncle (3 ml), removal of gill tissue (0·03 g) and quantification of energetic status using a microwave fat meter. Several experiments were used to test the hypothesis that the biopsy had a negligible effect on the subsequent survival and migratory behaviour of transmitter implanted fish. In the first experiment, no difference was found in the survival (both 100%) or tag retention (both 100%) between the two treatment groups (transmitter implanted with and without biopsy) when fish were held in pens for 24 h in the marine environment. Similarly, in other experiments where fish were released to the ocean to resume their migratory journey, no statistical differences were found in the travel times of fish in the two treatment groups, or in the proportion of fish that passed in-river telemetry checkpoints. These results indicated that the handling and biopsy methods produced similar levels of mortality and tag retention as the telemetry treatment alone and that any changes in behaviour between the two treatment groups did not adversely affect migration time. Based upon the evidence provided from the biotelemetry of 〉300 adult sockeye salmon, it was felt that this general type of approach could be applicable to other fish species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.2005.00830.x
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  • 7
    Electronic Resource
    Electronic Resource
    Coding techniques for handling failures in large disk arrays (1994)
    Springer
    Algorithmica 12 (1994), S. 182-208 
    Details
    ISSN: 1432-0541
    Keywords: Input/output architecture ; Redundant disk arrays ; RAID ; Error-correcting codes ; Reliability ; Availability
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Mathematics
    Notes: Abstract A crucial issue in the design of very large disk arrays is the protection of data against catastrophic disk failures. Although today single disks are highly reliable, when a disk array consists of 100 or 1000 disks, the probability that at least one disk will fail within a day or a week is high. In this paper we address the problem of designing erasure-correcting binary linear codes that protect against the loss of data caused by disk failures in large disk arrays. We describe how such codes can be used to encode data in disk arrays, and give a simple method for data reconstruction. We discuss important reliability and performance constraints of these codes, and show how these constraints relate to properties of the parity check matrices of the codes. In so doing, we transform code design problems into combinatorial problems. Using this combinatorial framework, we present codes and prove they are optimal with respect to various reliability and performance constraints.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01185210
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  • 8
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    Evidence for a Triplet State of the Self-Trapped Exciton in Alkali-Halide Crystals (1967)
    American Physical Society
    Details
    Publication Date: 1967-09-11
    Print ISSN: 0031-9007
    Electronic ISSN: 1079-7114
    Topics: Physics
    Published by American Physical Society
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  • 9
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    Personality-dependent spatial ecology occurs independently from dispersal in wild burbot (Lota lota) (2015)
    Oxford University Press
    Details
    Publication Date: 2015-03-27
    Description: Although personality has been documented in numerous animals and characters, research into personality-dependent spatial ecology has focused on dispersal. Indeed, few authors have investigated the role of other important spatial traits such as home range, movement distance, vertical activity, and site fidelity, and it is not clear whether these behaviors are correlated with dispersal. In this study, we investigated individual differences in home range, dispersal from release, vertical activity, movement distance, and site fidelity of 44 wild burbot Lota lota over 2 years, using an acoustic telemetry array and a Bayesian mixed modeling framework. We tested whether the spatial behaviors met the following criteria for personality-dependent behavior: repeatability, cross-contextual consistency, and an absence of pseudo-repeatability associated with spatial context choice. We then tested for between-individual correlations among spatial behaviors, indicative of a behavioral syndrome. Our results documented repeatable, cross-contextually consistent, personality-dependent home range, movement, dispersal from release, and site fidelity. In contrast, behavioral differences in vertical activity were inconsistent across sampling years and may have been a product of habitat heterogeneity. Our data indicate a spatial behavioral syndrome occurred independently from dispersal from release, with behavioral types ranging from "resident" individuals with small home ranges, high site fidelity, and minimal movement to "mobile" individuals with large home ranges, high movement rates, and little site fidelity. Our findings suggest animal personality can play a key role in shaping the space use of individuals, and this diversity in spatial behaviors may be too complex to be captured by often used simple linear measures of dispersal.
    Print ISSN: 1045-2249
    Electronic ISSN: 1465-7279
    Topics: Biology
    Published by Oxford University Press
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  • 10
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    Heterogeneous Lollipop-like V2O5/ZnO Array: A Promising Composite Nanostructure for Visible Light Photocatalysis (2010)
    American Chemical Society
    Details
    Publication Date: 2010-07-20
    Print ISSN: 0743-7463
    Electronic ISSN: 1520-5827
    Topics: Chemistry and Pharmacology
    Published by American Chemical Society
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