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  • Inorganic Chemistry  (8)
  • Fisheries  (1)
  • anthropogenic impacts  (1)
  • marine mammals  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Review of stress in marine mammals (2000)
    Springer
    Journal of aquatic ecosystem stress and recovery 7 (2000), S. 335-354 
    Details
    ISSN: 1573-5141
    Keywords: marine mammals ; stress ; anthropogenic impacts ; contaminant ; physiological response ; oil
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract There has been a growing concern over the last few decades about theeffects of environmental stress, including anthropogenic impacts, onmarine mammals. This paper provides an overview of the wide range ofanthropogenic stressors that marine mammals may encounter and the levelof understanding on their potential effects. Sources of stress andphysiological responses of the animals are explored. Many of the lifehistory traits of marine mammals (i.e., long-life spans, late maturity,relatively low reproductive potential, and feeding high in the foodchain), make them susceptible to various anthropogenic stressors. Sincemarine mammals are exposed to a diverse array of multiple stressors,this paper focuses on three case studies (acute and chronic effects fromoil spills; chronic effects from environmental contaminants, andfishery-induced stress) to emphasize potential relevant hazards and toprovide a perspective on the use of marine mammals in assessingecosystem health. Additional research to enhance our understanding ofstress on marine mammals and to provide the science needed to guidemanagement decisions is recommended.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1009968113079
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  • 2
    Electronic Resource
    Electronic Resource
    cis-/trans-[1.1.1]-Trithia- und trans-[4.4.4]-Hexathia-tris-σ-homobenzole (1988)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 121 (1988), S. 741-756 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: cis-/trans-[1.1.1]-Trithia- and trans-[4.4.4]-Hexathia-tris-σ-homobenzenesStarting from the cis- and trans-benzene trioxides 2/7 the cis-/trans-[1.1.1]-Trithia-tris-σ-homobenzenes 1/6 and the trans-dioxathia-/oxadithia analogs 19/21 are synthesized by regioselective epoxide opening reactions with appropriate S-nucleophiles. Under the influence of heat and light cis-trisulfide 1 quickly looses sulfur and does not undergo [σ2 + σ2 + σ2]cycloreversion. Attempts to build up cis-[4.4.4]-tris-σ-homobenzenes from 2 by threefold six-membered ring anellation, in the special case of 1,2-benzenedithiol as 1,4-dinucleophil, led preferably to the trans-[4.4.4]-hexathia-tris-σ-homobenzene 44 (X-ray analysis) manifesting effective S-neighbouring group participation. cis-Trisulfide 1 is a poor tridentate ligand: only with Ni(ClO4)2 a 2:1 complex (presumably octahedral, 48) is formed.
    Notes: Die cis-/trans-[1.1.1]-Trithia-tris-σ-homobenzole 1/6 und die trans-O,O,S-/O,S,S-Analogen 19/21 wurden ausgehend von den cis-/trans-Trioxiden 2/7 über regioselektive Epoxidöffnungsreaktionen mit geeigenten S-Nucleophilen hergestellt. cis-Trisulfid 1 verliert bei Wärme- bzw. Lichteinfluß rasch Schwefel bzw. geht nicht die [σ2 + σ2 + σ2]-Cycloreversion ein. Versuche, ausgehend vom cis-Trioxid 2 unter dreifacher Sechsringanellierung cis-[4.4.4]-Tris-σ-homobenzol-Gerüste aufzubauen, ergaben mit 1,2-Benzoldithiol als 1,4-Dinucleophil bevorzugt trans-[4.4.4]-Hexathia-tris-σ-homobenzol 44 (Röntgenstrukturanalyse)  -  als Ergebnis effizienter S-Nachbargruppenbeteiligung. cis-Trisulfid 1 ist ein mäßiger dreizähniger Ligand, nur mit Ni(ClO4)2 wurde ein (wahrscheinlich octaedrischer) 2:1-Komplex (48) gebildet.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19881210422
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  • 3
    Electronic Resource
    Electronic Resource
    Ueber das Metanitrodiphenylmethan (1882)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 15 (1882), S. 2090-2092 
    Details
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.188201502144
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  • 4
    Electronic Resource
    Electronic Resource
    Paranitrobenzaldehyd und Aceton (1883)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 16 (1883), S. 1968-1971 
    Details
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.18830160288
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  • 5
    Electronic Resource
    Electronic Resource
    Chlorirung mittelst Acetylchlorid (1887)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 20 (1887), S. 2006-2008 
    Details
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.188702001447
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  • 6
    Electronic Resource
    Electronic Resource
    Zur Einwirkung von Formaldehyd auf Phenäthylamin (1912)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 45 (1912), S. 2404-2409 
    Details
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.191204502132
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  • 7
    Electronic Resource
    Electronic Resource
    Über Ammonium-amide und die Einwirkung von Aminen auf Cyclammonium-Salze und analoge Verbindungen. (28. Mitteilung über Ammoniumverbindungen.) (1913)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 46 (1913), S. 969-978 
    Details
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.191304601125
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  • 8
    Electronic Resource
    Electronic Resource
    Zur Synthese von Phenopyrylium-Salzen (1914)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 47 (1914), S. 2288-2292 
    Details
    ISSN: 0365-9496
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.191404702146
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  • 9
    Electronic Resource
    Electronic Resource
    Über die Ringöffnung in der Phenopyrylium-Reihe (1922)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 55 (1922), S. 375-394 
    Details
    ISSN: 0365-9631
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19220550213
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  • 10
    facet.materialart.
    Unknown
    Concentrations of Polychlorinated Biphenyls (PCB’s), Chlorinated Pesticides, and Heavy Metals and Other Elements in Tissues of Belugas, Delphinapterus leucas, from Cook Inlet (2021)
    In:  http://aquaticcommons.org/id/eprint/9772 | 403 | 2012-08-14 20:25:44 | 9772 | United States National Marine Fisheries Service
    Details
    Publication Date: 2021-07-09
    Description: Tissues from Cook Inlet beluga whales, Delphinapterus leucas, that were collected as part of the Alaska Marine Mammal Tissue Archival Project were analyzed for polychlorinated biphenyls (PCB’s), chlorinated pesticides, and heavy metals and other elements. Concentrations of total PCB’s (ΣPCB’s), total DDT (ΣDDT), chlordane compounds, hexachlorobenzene (HCB), dieldrin, mirex, toxaphene, and hexachlorocyclohexane (HCH) measured in Cook Inlet beluga blubber were compared with those reported for belugas from two Arctic Alaska locations (Point Hope and Point Lay), Greenland, Arctic Canada, and the highly contaminated stock from the St. Lawrence estuary in eastern Canada. The Arctic and Cook Inlet belugas had much lower concentrations (ΣPCB’s and ΣDDT were an order of magnitude lower) than those found in animals from the St. Lawrence estuary. The Cook Inlet belugas had the lowest concentrations of all (ΣPCB’s aver-aged 1.49 ± 0.70 and 0.79 ± 0.56 mg/kg wet mass, and ΣDDT averaged 1.35 ± 0.73 and 0.59 ± 0.45 mg/kg in males and females, respectively). Concentrations in the blubber of the Cook Inlet males were significantly lower than those found in the males of the Arctic Alaska belugas (ΣPCB’s and ΣDDT were about half). The lower levels in the Cook Inlet animals might be due to differences in contaminant sources, food web differences, or different age distributions among the animals sampled. Cook Inlet males had higher mean and median concentrations than did females, a result attributable to the transfer of these compounds from mother to calf during pregnancy and during lactation. Liver concentrations of cadmium and mercury were lower in the Cook Inlet belugas (most cadmium values were 〈1 mg/kg and mercury values were 0.704–11.42 mg/kg wet mass), but copper levels were significantly higher in the Cook Inlet animals (3.97–123.8 mg/kg wet mass) than in Arctic Alaska animals and similar to those reported for belugas from Hudson Bay. Although total mercury levels were the lowest in the Cook Inlet population, methylmercury concentrations were similar among all three groups of the Alaska animals examined (0.34–2.11 mg/kg wet mass). As has been reported for the Point Hope and Point Lay belugas, hepatic concentrations of silver were re
    Keywords: Biology ; Ecology ; Fisheries
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 81-98
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