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  • 1
    Publication Date: 1968-10-01
    Print ISSN: 0021-9541
    Electronic ISSN: 1097-4652
    Topics: Biology , Medicine
    Published by Wiley
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  • 2
    Publication Date: 2022-05-26
    Description: © The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Staudinger, M. D., Goyert, H., Suca, J. J., Coleman, K., Welch, L., Llopiz, J. K., Wiley, D., Altman, I., Applegate, A., Auster, P., Baumann, H., Beaty, J., Boelke, D., Kaufman, L., Loring, P., Moxley, J., Paton, S., Powers, K., Richardson, D., Robbins, J., Runge, J., Smith, B., Spiegel, C., & Steinmetz, H. The role of sand lances (Ammodytes sp.) in the Northwest Atlantic ecosystem: a synthesis of current knowledge with implications for conservation and management. Fish and Fisheries, 00, (2020): 1-34, doi:10.1111/faf.12445.
    Description: The American sand lance (Ammodytes americanus, Ammodytidae) and the Northern sand lance (A. dubius, Ammodytidae) are small forage fishes that play an important functional role in the Northwest Atlantic Ocean (NWA). The NWA is a highly dynamic ecosystem currently facing increased risks from climate change, fishing and energy development. We need a better understanding of the biology, population dynamics and ecosystem role of Ammodytes to inform relevant management, climate adaptation and conservation efforts. To meet this need, we synthesized available data on the (a) life history, behaviour and distribution; (b) trophic ecology; (c) threats and vulnerabilities; and (d) ecosystem services role of Ammodytes in the NWA. Overall, 72 regional predators including 45 species of fishes, two squids, 16 seabirds and nine marine mammals were found to consume Ammodytes. Priority research needs identified during this effort include basic information on the patterns and drivers in abundance and distribution of Ammodytes, improved assessments of reproductive biology schedules and investigations of regional sensitivity and resilience to climate change, fishing and habitat disturbance. Food web studies are also needed to evaluate trophic linkages and to assess the consequences of inconsistent zooplankton prey and predator fields on energy flow within the NWA ecosystem. Synthesis results represent the first comprehensive assessment of Ammodytes in the NWA and are intended to inform new research and support regional ecosystem‐based management approaches.
    Description: This manuscript is the result of follow‐up work stemming from a working group formed at a two‐day multidisciplinary and international workshop held at the Parker River National Wildlife Refuge, Massachusetts in May 2017, which convened 55 experts scientists, natural resource managers and conservation practitioners from 15 state, federal, academic and non‐governmental organizations with interest and expertise in Ammodytes ecology. Support for this effort was provided by USFWS, NOAA Stellwagen Bank National Marine Sanctuary, U.S. Department of the Interior, U.S. Geological Survey, Northeast Climate Adaptation Science Center (Award # G16AC00237), an NSF Graduate Research Fellowship to J.J.S., a CINAR Fellow Award to J.K.L. under Cooperative Agreement NA14OAR4320158, NSF award OCE‐1325451 to J.K.L., NSF award OCE‐1459087 to J.A.R, a Regional Sea Grant award to H.B. (RNE16‐CTHCE‐l), a National Marine Sanctuary Foundation award to P.J.A. (18‐08‐B‐196) and grants from the Mudge Foundation. The contents of this paper are the responsibility of the authors and do not necessarily represent the views of the National Oceanographic and Atmospheric Administration, U.S. Fish and Wildlife Service, New England Fishery Management Council and Mid‐Atlantic Fishery Management Council. This manuscript is submitted for publication with the understanding that the United States Government is authorized to reproduce and distribute reprints for Governmental purposes. Any use of trade, firm or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
    Keywords: Ammodytes ; ecosystem‐based management ; forage fish ; life history ; sand lance ; trophic ecology
    Repository Name: Woods Hole Open Access Server
    Type: Article
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Economic affairs 8 (1988), S. 0 
    ISSN: 1468-0270
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: Dr David Coleman of Oxford University analyses the recent housing legislation and claims that the Government has further to go in reforming the housing market
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Economic affairs 13 (1993), S. 0 
    ISSN: 1468-0270
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: Should the PSBR be the only indicator to keep the Chancellor awake? David Coleman suggests that the deterioration in the Balance of Payments may impose significant limits on Mr Lamont's freedom to manoeuvre.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract: Tn phoA has been introduced with high efficiency into the chromosome of the phytopathogenic bacterium Erwinia amylovora. Transposition occurred with apparent randomness and single insertions were predominant. Fusion proteins were detected in cell envelope fractions from PhoA+ mutants and a range of alkaline phosphatase activities was onserved. The results provide the first evidence that sequences encoding signal peptides are present in E. amylovora and that Tn phoA may be a valuable tool for the study of the translocation, regulation and function of E. amylovora extracytoplasmic proteins. In particular, Tn phoA mutagenesis should be applicable to the identification of cell envelope proteins involved in the virulence of this organism.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 8 (1980), S. 0 
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 39 (1986), S. 0 
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 20 (1983), S. 0 
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract The ability of P-type plasmids, containing bacteriophage Mu, to survive in Rhizobia was examined under conditions in which the plasmids were not directly selected. The plasmid pRP4::Mu::Tn7 survived in all tested strains of Rhizobia and Agrobacteria. The surviving plasmids were analysed for expression of plasmid coded properties and for presence of both bacteriophage Mu and Tn7 DNA. A large variation in plasmid size and coding capacity was observed. In the parent plasmid Tn7 is inserted into the Mu DNA. The majority of surviving plasmids had lost Mu DNA but the Tn7 DNA was retained. Analysis of surviving plasmids which contained Mu DNA indicated that a small deletion of Mu is sufficient to allow plasmid survival. Deleted derivatives of pJB4J1 were also isolated in Rhizobium under similar conditions. The potential of these suicide vectors as potential vectors for transposon mutagenesis in Rhizobium is discussed.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract Although considerable homology exists between the translation products of the rplL, rpoB and rpoC genes of the β operons of the Gram-negative organism Escherichia coli and the Gram-positive Staphylococcus aureus the region between the rplL and rpoB genes is quite different in the two bacterial species. In E. coli the 324 bp has three centres of dyad symmetry in the first half of the sequence and multiple nonsense codons in all three reading frames. By contrast, the corresponding region in S. aureus consists of 1000 bp capable of forming a similar arrangement of stem-loop structures but with an open reading frame, sited 177 bp downstream of the end of rplL and 217 bp upstream of the beginning of the rpoB gene, with consensus initiation and termination signals, which if translated would generate a 22,665 Da protein with 202 amino acids. In view of the inability to find any significant homology with other proteins in the data bank and because the evidence suggests, as in E. coli, that the rplL-rpoB intergenic sequence is involved in regulation it is proposed that the expression product of orf202 may be a further element of control in the S. aureusβ operon.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 70 (1990), S. 0 
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract Spontaneously-occurring rifampicin-resistant mutants of Sataphylococcus aureus were isolated on 4% (w/v) Tryptone Soya Agar containing 4 and 40 times the m.i.c. for rifampicin. A number of colonies were selected at each rifampicin concentration and were grown aerobically in 3% (w/v) Tryptone Soya Broth for 24 h at 37°C. In the case of S. aureus RN4220 all the mutants grew to bacterial densities up to approximately 1.7 times more than parent organism. The corresponding levels of extracellular protein secretion varied over a 5-fold range, all the mutants being less productive than the parent. By contrast, mutants of the wild-type Wood 46 strain achieved bacterial densities of only 45–83% that of the parent whilst exoprotein secretion showed a smaller 1.7-fold variation. However, widely-differing patterns of exoproteins were revealed by SDS-polyacrylamide gel electrophoresis of the parent and mutant organisms of both strains.
    Type of Medium: Electronic Resource
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