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  • Biology  (101)
  • Chemistry  (59)
  • LUNAR AND PLANETARY EXPLORATION
  • energy economics
  • Ambleside, UK  (119)
  • Berlin, Heidelberg : Springer
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  • 1
    Unbekannt
    Theoretical Aspects of Transition Metal Catalysis (2005)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Biochemistry ; Chemistry ; Chemistry, Organic ; Chemistry, inorganic
    ISBN: 9783540314448
    URL: https://doi.org/10.1007/b94252
    Sprache: Englisch
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  • 2
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    Magnetic Functions Beyond the Spin-Hamiltonian (2006)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Chemistry ; Chemistry, inorganic ; Magnetism
    ISBN: 9783540325017
    URL: https://doi.org/10.1007/b136753
    Sprache: Englisch
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  • 3
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    Conformation-Dependent Design of Sequences in Copolymers I (2006)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Chemistry ; Chemistry, Physical organic ; Polymers
    ISBN: 9783540329466
    URL: https://doi.org/10.1007/11569572
    Sprache: Englisch
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  • 4
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    Conformation-Dependent Design of Sequences in Copolymers II (2006)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Chemistry ; Chemistry, Physical organic ; Polymers
    ISBN: 9783540329473
    URL: https://doi.org/10.1007/11570325
    Sprache: Englisch
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  • 5
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    QSAR and Molecular Modeling Studies in Heterocyclic Drugs I (2006)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Biochemistry ; Biochemistry ; Chemistry ; Chemistry, Organic
    ISBN: 9783540333791
    URL: https://doi.org/10.1007/11577737
    Sprache: Englisch
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  • 6
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    Quantum Dynamics of Complex Molecular Systems (2007)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Chemistry ; Chemistry, Physical organic ; Materials ; Plasma (Ionized gases)
    ISBN: 9783540344605
    URL: https://doi.org/10.1007/978-3-540-34460-5
    Sprache: Englisch
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  • 7
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    Analysis and Control of Ultrafast Photoinduced Reactions (2007)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Biomedical engineering ; Chemistry ; Chemistry, Physical organic ; Plasma (Ionized gases) ; Spectrum analysis
    ISBN: 9783540680383
    URL: https://doi.org/10.1007/978-3-540-68038-3
    Sprache: Englisch
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  • 8
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    Anthracycline Chemistry and Biology I : Biological Occurence and Biosynthesis, Synthesis and Chemistry (2008)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Biochemistry ; Chemistry ; Chemistry, Organic
    ISBN: 9783540758150
    URL: https://doi.org/10.1007/978-3-540-75815-0
    Sprache: Englisch
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  • 9
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    Fuel Cells II (2008)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Chemistry ; Electric engineering ; Materials ; Polymers ; Soft condensed matter
    ISBN: 9783540697657
    URL: https://doi.org/10.1007/978-3-540-69765-7
    Sprache: Englisch
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  • 10
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    New Techniques in Solid-State NMR (2005)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Chemistry
    ISBN: 9783540314738
    URL: https://doi.org/10.1007/b94544
    Sprache: Englisch
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  • 11
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    Metallocenes in Regio- and Stereoselective Synthesis (2005)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Chemistry
    ISBN: 9783540016069
    URL: https://doi.org/10.1007/b88327
    Sprache: Englisch
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  • 12
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    Square-Wave Voltammetry : Theory and Application (2007)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Analytical biochemistry ; Chemistry ; Particles (Nuclear physics) ; Weights and measures
    ISBN: 9783540737407
    URL: https://doi.org/10.1007/978-3-540-73740-7
    Sprache: Englisch
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  • 13
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    Conducting Polymers with Micro or Nanometer Structure (2008)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Chemistry ; Materials ; Nanotechnology ; Polymers
    ISBN: 9783540693239
    URL: https://doi.org/10.1007/978-3-540-69323-9
    Sprache: Englisch
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  • 14
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    Free Energy Calculations : Theory and Applications in Chemistry and Biology (2007)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Biomedical engineering ; Chemistry ; Chemistry, Physical organic ; Physics ; Plasma (Ionized gases) ; Statistical physics
    ISBN: 9783540736172
    URL: https://doi.org/10.1007/978-3-540-38448-9
    Sprache: Englisch
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  • 15
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    Fuel Cells I (2008)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Chemistry ; Electric engineering ; Materials ; Polymers ; Soft condensed matter
    ISBN: 9783540697572
    URL: https://doi.org/10.1007/978-3-540-69757-2
    Sprache: Englisch
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  • 16
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    System Analysis: Theory and Applications (2007)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Chemistry ; Mathematics ; Engineering ; Operations research ; Systems theory
    ISBN: 9783540488804
    URL: https://doi.org/10.1007/978-3-540-48880-4
    Sprache: Englisch
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  • 17
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    Bioactive Conformation II (2008)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Analytical biochemistry ; Biochemistry ; Chemistry ; Chemistry, Organic ; Chemistry, Physical organic
    ISBN: 9783540490807
    URL: https://doi.org/10.1007/978-3-540-49080-7
    Sprache: Englisch
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  • 18
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    Modern Optical Spectroscopy : With Exercises and Examples from Biophysics and Biochemistry (2007)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Biochemistry ; Biomedical engineering ; Chemistry ; Chemistry, Physical organic ; Cytology ; Research_xMethodology ; Spectrum analysis
    ISBN: 9783540958956
    URL: https://doi.org/10.1007/978-3-540-37542-5
    Sprache: Englisch
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  • 19
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    Is it Safe to Eat? : Enjoy Eating and Minimize Food Risks (2005)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Chemistry ; Clinical health psychology ; Food science ; Nutrition ; Toxicology
    ISBN: 9783540270034
    URL: https://doi.org/10.1007/b138385
    Sprache: Englisch
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  • 20
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    Polymer Analysis Polymer Theory (2005)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Analytical biochemistry ; Chemistry ; Chemistry, Physical organic ; Polymers ; Soft condensed matter
    ISBN: 9783540315773
    URL: https://doi.org/10.1007/b135558
    Sprache: Englisch
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  • 21
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    Integrated Reaction and Separation Operations : Modelling and experimental validation (2006)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Biochemical engineering ; Chemical engineering ; Chemistry ; Environmental sciences ; Technology
    ISBN: 9783540303046
    URL: https://doi.org/10.1007/3-540-30304-9
    Sprache: Englisch
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  • 22
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    Electrochemical Dictionary (2008)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Analytical biochemistry ; Chemistry ; Chemistry, Physical organic ; Engineering
    ISBN: 9783540745983
    URL: https://doi.org/10.1007/978-3-540-74598-3
    Sprache: Englisch
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  • 23
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    Conducting Polymers : A New Era in Electrochemistry (2008)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Chemistry ; Particles (Nuclear physics) ; Polymers
    ISBN: 9783540759300
    URL: https://doi.org/10.1007/978-3-540-75930-0
    Sprache: Englisch
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  • 24
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    Computational Chemistry and Molecular Modeling : Principles and Applications (2008)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Chemistry ; Chemistry, Physical organic ; Chemistry ; Mathematics
    ISBN: 9783540773047
    URL: https://doi.org/10.1007/978-3-540-77304-7
    Sprache: Englisch
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  • 25
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    Anthracycline Chemistry and Biology II : Mode of Action, Clinical Aspects and New Drugs (2008)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Biochemistry ; Chemistry ; Chemistry, Organic
    ISBN: 9783540758136
    URL: https://doi.org/10.1007/978-3-540-75813-6
    Sprache: Englisch
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  • 26
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    Amplification of Chirality (2008)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Chemistry ; Chemistry, Organic ; Chemistry, Physical organic
    ISBN: 9783540778691
    URL: https://doi.org/10.1007/978-3-540-77869-1
    Sprache: Englisch
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  • 27
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    STM and AFM Studies on (Bio)molecular Systems: Unravelling the Nanoworld (2008)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Analytical biochemistry ; Chemistry ; Chemistry, Organic ; Nanotechnology ; Polymers ; Surfaces (Physics)
    ISBN: 9783540783954
    URL: https://doi.org/10.1007/978-3-540-78395-4
    Sprache: Englisch
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  • 28
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    Advanced Computer Simulation Approaches for Soft Matter Sciences I (2005)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Chemistry ; Materials ; Physics ; Polymers ; Soft condensed matter
    ISBN: 9783540315582
    URL: https://doi.org/10.1007/b98052
    Sprache: Englisch
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  • 29
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    Advanced Computer Simulation Approaches for Soft Matter Sciences II (2005)
    Berlin, Heidelberg : Springer
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    Schlagwort(e): Chemistry ; Materials ; Physics ; Polymers ; Soft condensed matter
    ISBN: 9783540315810
    URL: https://doi.org/10.1007/b136792
    Sprache: Englisch
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  • 30
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    Semiconductor Nanocrystals and Silicate Nanoparticles (2005)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Chemistry ; Chemistry, inorganic ; Crystallography ; Materials ; Nanotechnology ; Optical materials
    ISBN: 9783540314974
    URL: https://doi.org/10.1007/b11020
    Sprache: Englisch
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  • 31
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    Intermolecular Forces and Clusters II (2005)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Chemistry ; Chemistry, Organic ; Chemistry, Physical organic ; Chemistry, inorganic
    ISBN: 9783540324119
    URL: https://doi.org/10.1007/b100423
    Sprache: Englisch
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  • 32
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    Intermolecular Forces and Clusters I (2005)
    Berlin, Heidelberg : Springer
    Details
    Schlagwort(e): Chemistry ; Chemistry, Organic ; Chemistry, Physical organic ; Chemistry, inorganic
    ISBN: 9783540314981
    URL: https://doi.org/10.1007/b101390
    Sprache: Englisch
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  • 33
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    Advisory report on nutrient levels and related ecology of Malham Tarn (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5092 | 1256 | 2011-09-29 15:25:26 | 5092 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-08
    Beschreibung: Aspects of reported nutrient levels and their ecological implications for Malham Tarn are discussed. Discussion centres upon the data given here as appendices, involving possible evidence of a long-term increase in the concentrations of some nutrients (especially nitrate) of significance for the Tarn's ecology and conservation. Further comparative tests of some methods of chemical analysis employed in obtaining those data are reported.
    Schlagwort(e): Biology ; Ecology ; Limnology ; Freshwater ecology ; Freshwater lakes ; Nutrients (mineral) ; Nitrates ; Phosphorus ; Alkalinity ; Methodology ; Ultraviolet radiation ; Hydrology ; England ; Malham Tarn
    Repository-Name: AquaDocs
    Materialart: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 42
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  • 34
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    Progress on the salmon investigation (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5110 | 3949 | 2011-09-29 15:23:55 | 5110 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-08
    Beschreibung: An article detailing some of the conclusions of the salmon investigation undertaken by the author, on the River Eden and its tributaries, for the previous few years. It is proposed that seasonal changes in young salmon growth are related to water temperature variation. A figure is included showing length of fish compared to the average temperature of water in the River Eden over a two year duration. The article describes comparative work undertaken to date between three streams within the Thurso watershed and the River Eden. A table is included showing the average size of fish in each of the watercourses compared. Laboratory experiments on the effects of temperature on young salmon are outlined, as well as investigative work undertaken into the realtionship between fish scales and fish length.
    Schlagwort(e): Biology ; Ecology ; Fisheries ; Water temperature ; Freshwater fish ; Length ; Scales ; Seasonal variations ; Feeding ; Temperature effects ; Annual reports ; Salmo salar ; England ; Scotland
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 51-55
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  • 35
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    Invertebrate animals of the Lake District (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5109 | 3949 | 2011-09-29 15:23:53 | 5109 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-08
    Schlagwort(e): Biology ; Ecology ; Limnology ; Freshwater molluscs ; Aquatic insects ; Invertebrate larvae ; Aquatic organisms ; Annual reports ; Corixidae ; Coleoptera ; England ; Lake District
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 47-51
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  • 36
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    Final report on the updating service on environmental chemicals in freshwater for the period 9.1.89 to 9.7.89 (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5238 | 1256 | 2011-09-29 15:13:42 | 5238 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: This report presents five batches of data which have been despatched to the Joint Research Centre, Ispra. The data as been allocated to various ECDIN (Environmental Chemicals Data and Information Network) files. The data comprises environmental chemicals in the freshwater environment, taking in paricular consideration: aquatic toxicity, bioaccumulation, metabolism and elimination biodegradation.
    Schlagwort(e): Chemistry ; Ecology ; Limnology ; Data ; Data processing ; Data collections ; Chemical compounds ; Toxicity ; Bioaccumulation ; Biodegradation ; Metabolism
    Repository-Name: AquaDocs
    Materialart: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 8
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  • 37
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    Corroborative studies on the effects of sample variation on three macroinvertebrate biological assessment methods at different water quality states (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5259 | 1256 | 2011-09-29 15:09:27 | 5259 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: In recent collaborative biological sampling exercises organised by the Nottingham Regional Laboratory of the Severn-Trent Water Authority, the effect of handnet sampling variation on the quality and usefulness of the data obtained has been questioned, especially when this data is transcribed into one or more of the commonly used biological methods of water quality assessment. This study investigates if this effect is constant at sites with similar typography but differing water quality states when the sampling method is standardized and carried out by a single operator. An argument is made for the use of a lowest common denominator approach to give a more consistent result and obviate the effect of sampling variation on these biological assessment methods.
    Beschreibung: Bilateral study of methods 2 - Pollution Report No.8
    Schlagwort(e): Biology ; Limnology ; Pollution ; Sampling ; Samplers ; Methodology ; Standardization ; Rivers ; Invertebrate larvae ; England ; Trent River
    Repository-Name: AquaDocs
    Materialart: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 19
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  • 38
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    Investigations on phytoplankton with special reference to water usage (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5281 | 1256 | 2011-09-29 15:11:31 | 5281 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: Experiments and observations on the phytoplankton of certain lakes in the English Lake District were made from early 1973 to the end of March, 1974. They included laboratory and lake bioassays and observations on the quantity and quality of the phytoplankton in six lakes. The introductory sections of the report are about algae, the ecology of phytoplankton and the scope of the contracted work. Laboratory bioassays on water from one lake, Blelham Tarn, showed that phosphorus, silicon (for diatoms) and organic substances forming complexes with iron were the major substances limiting the growth of the algae tested. The growth of the test algae was limited to different degrees by those substances and, to some extent, to a greater or lesser degree at different times of year. It is suggested that a relatively simple form of bioassay could give valuable information to water undertakings. Lake bioassays and other experiments were carried out by using large in situ tubular plastic enclosures. Two such investigations are described. The effects of a change in sewerage in two drainage basins on the phytoplankton of three lakes is described and some data given about changes since 1945 in three other lakes in the same overall drainage basin. These latter lakes have been affected too by changes in sewerage and by increasing inputs of domestic and agricultural wastes. Throughout, the relevance of the work done to practical problems of water usage is kept in mind and discussed. In the last section special reference is made to the largely unpredictable results of water transfers. The report ends with a note on river phytoplankton.
    Schlagwort(e): Biology ; Limnology ; Management ; Phytoplankton ; Water use ; Water supply ; Freshwater lakes ; Bioassays ; Tests ; Controlled conditions ; Thermal stratification ; Tubing ; Nutrients (mineral) ; Diatoms ; England ; English Lake District
    Repository-Name: AquaDocs
    Materialart: book , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 64
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  • 39
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    Provisional atlas of the freshwater leeches of the British Isles (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5282 | 1256 | 2011-09-29 15:11:34 | 5282 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: Distribution maps were included in the second edition of the F.B.A. Scientific Publication on British freshwater leeches (Mann 1964). When that publication was extensively revised and enlarged to include a review of the literature on the ecology of leeches (Elliott & Mann 1979), it was decided that new maps should be published separately. The original maps were based on 1097 records whereas 4198 records were used for the new maps. The total British Isles list comprises sixteen species, thirteen genera and four families of leeches.
    Schlagwort(e): Biology ; Ecology ; Limnology ; Distribution records ; Ecological distribution ; Maps ; Freshwater organisms ; Hirudinea
    Repository-Name: AquaDocs
    Materialart: book , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 31
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  • 40
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    Ecological indicators of water quality in small rivers (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5270 | 1256 | 2011-09-29 15:10:29 | 5270 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: At the present time hydrobiological indicators are widely used for the control of surface water quality. Results of the applying of methods suggested at the 1st Soviet-American seminar (1975), development of improved methods and estimation of their usefulness for various conditions are presented in this report. Among the criteria permitting an estimation of the degree and character of changes in water quality and their connection with the functioning of river ecosystems in general, the biological tests of natural waters appears to be the most universal one and is being carried out in two main directions — ecological and physiological. This study summarises approaches in both directions.
    Schlagwort(e): Biology ; Limnology ; Pollution ; River water ; Rivers ; Water quality ; Water quality control ; Indicators
    Repository-Name: AquaDocs
    Materialart: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 6
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  • 41
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    Published work on freshwater science from the FBA, IFE and CEH, 1929-2006 (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5284 | 1256 | 2011-09-29 15:11:41 | 5284 | Freshwater Biological Association
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    Publikationsdatum: 2021-07-09
    Beschreibung: A new listing of published scientific contributions from the Freshwater Biological Association (FBA) and its later Research Council associates – the Institute of Freshwater Ecology (1989–2000) and the Centre for Ecology and Hydrology (2000+) is provided. The period 1929–2006 is covered. The compilation extends an earlier list assembled by in 1979.
    Schlagwort(e): Biology ; Ecology ; Limnology ; Bibliographies ; Freshwater sciences ; Hydrobiology ; Hydrology ; Limnology
    Repository-Name: AquaDocs
    Materialart: book , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 161
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  • 42
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    Changes of water quality and sediment phosphorus of a small productive lake following decreased phosphorus loading (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5293 | 1256 | 2011-09-29 15:08:09 | 5293 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: Esthwaite Water is the most productive or eutrophic lake in the English Lake District. Since 1945 its water quality has been determined from weekly or biweekly measurements of temperature, oxygen, plant nutrients and phytoplankton abundance. The lake receives phosphorus from its largely lowland-pasture catchment, sewage effluent from the villages of Hawkshead and Near Sawrey, and from a cage-culture fish farm. From 1986 phosphorus has been removed from the sewage effluent of Hawkshead which was considered to contribute between 47% and 67% of the total phosphorus loading to the lake. At the commencement of phosphorus removal regular measurements of phosphorus in the superficial 0-4 cm layer of lake sediment were made from cores collected at random sites. Since 1986 the mean annual concentration of alkali-extractable sediment phosphorus has decreased by 23%. This change is not significant at the 5% level but nearly so. There has been no marked change in water quality over this period. Summer dominance of blue-green algae which arose in the early 1980s after decline of the previous summer forms, Ceratium spp., has been maintained. Improvement in water quality is unlikely to be achieved at the present phosphorus loading.
    Schlagwort(e): Chemistry ; Limnology ; Pollution ; Eutrophication ; Freshwater lakes ; Limnological surveys ; Phosphorus ; Phytoplankton ; Primary production ; Sediment analysis ; Water quality ; England ; Esthwaite Water
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 119-131
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    The ecological impact of different mechanisms of chronic sub-lethal toxicity on feeding and respiratory physiology (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5307 | 1256 | 2011-09-29 15:06:39 | 5307 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: Sub-lethal toxicity tests, such as the scope-for-growth test, reveal simple relationships between measures of contaminant concentration and effect on respiratory and feeding physiology. Simple models are presented to investigate the potential impact of different mechanisms of chronic sub-lethal toxicity on these physiological processes. Since environmental quality is variable, even in unimpacted environments, toxicants may have differentially greater impacts in poor compared to higher quality environments. The models illustrate the implications of different degrees and mechanisms of toxicity in response to variability in the quality of the feeding environment, and variability in standard metabolic rate. The models suggest that the relationships between measured degrees of toxic stress, and the maintenance ration required to maintain zero scope-for-growth, may be highly nonlinear. In addition it may be possible to define critical levels of sub-lethal toxic effect above which no environment is of sufficient quality to permit prolonged survival.
    Schlagwort(e): Biology ; Limnology ; Pollution ; Toxicity ; Sublethal effects ; Toxicity tests ; Models ; Metabolism ; Narcosis ; Animal physiology ; Risk management ; Respiration
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 88-97
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  • 44
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    The connection between single species and ecosystems (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5306 | 1256 | 2011-09-29 15:06:38 | 5306 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: Ecosystem level models are motivated by some combination of scientific and practical concerns. Those models motivated by practical concerns are likely to bear little historical relation to previous models. Mechanisms of interaction between particular species and their ecosystems vary enormously. Some species literally construct their own ecosystems. Others have more or less complex and important interactions with other species so that their presence or absence may alter the ecosystem. Prior information about the natural history of particular species can make ecosystem investigations quicker, cheaper, and more effective. The optimal resource for preparing to deal with the unlimited diversity of questions asked of ecologists would be a large' computerized databank of natural history observations for as many species as possible.
    Schlagwort(e): Ecology ; Limnology ; Oceanography ; Ecosystems ; Aquatic environment ; Species ; Interspecific relationships ; Biology ; Models
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 75-87
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  • 45
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    Molecular biomarkers and toxic consequences of impact by organic pollution in aquatic organisms (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5314 | 1256 | 2011-09-29 15:06:13 | 5314 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: Organic contaminants are readily bioaccumulated by aquatic organisms. Exposure to and toxic effects of contaminants can be measured in terms of the biochemical responses of the organisms (i.e. molecular biomarkers). The hepatic biotransformation enzyme cytochrome P4501A (CYP1A) in vertebrates is specifically induced by organic contaminants such as aromatic hydrocarbons, PCBs and dioxins, and is involved in chemical carcinogenesis via catalysis of the covalent binding of organic contaminants to DNA (DNA-adducts). Hepatic CYP1A induction has been used extensively and successfully as a biomarker of organic contaminant exposure in fish. Fewer but equally encouraging studies in fish have used hepatic bulky, hydrophobic DNA-adducts as biomarkers of organic contaminant damage. Much less is known of the situation in marine invertebrates, but a CYPlA-like enzyme with limited inducibility and some potential for biomarker application is indicated. Stimulation of reactive oxygen species (ROS) production is another potential mechanism of organic contaminant-mediated DNA and other damage in aquatic organisms. A combination of antioxidant (enzymes, scavengers) and pro-oxidant (oxidised DNA bases, lipid peroxidation) measurements may have potential as a biomarker of organic contaminant exposure (particularly those chemicals which do not induce CYP1A) and/or oxidative stress, but more studies are required. Both CYP1A- and ROS-mediated toxicity are indicated to result in higher order deleterious effects, including cancer and other aspects of animal fitness.
    Schlagwort(e): Biology ; Environment ; Pollution ; Biomarkers ; Toxicity ; Aquatic organisms ; Biological pollutants ; Enzymes ; Hydrocarbons ; Mutagens ; Pollutants ; Animal diseases ; Fish
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 154-171
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  • 46
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    Effects of stress on the immune system of fish (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5309 | 1256 | 2011-09-29 15:06:43 | 5309 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: The effects of stress on the immune system of various fish species including dab Limanda limanda, flounder Platichthys flesus, sea bass Dicentrarchus labrax and gobies Zosterisessor ophiocephalus, were investigated from laboratory and field experiments, using various assays to measure immunocompetence, correlated with histological and ultrastructural observations. Modulation of the immune system was demonstrated at tissue, cellular and biochemical levels following exposure to various stressors. The spleen somatic index was depressed in dab stressed in the laboratory and gobies collected from polluted sites in the Venice Lagoon. Differential blood cell counts consistently showed an increase in phagocytes and decrease in thrombocytes in fish exposed to various stressors. Phagocytic activity from spleen and kidney adherent cells was stimulated in dab stressed by transportation but depressed in fish exposed to chemical pollutants. Respiratory burst activity in phagocytic cells was also stimulated in stressed dab but depressed in sea bass exposed to cadmium. The results are discussed in relation to current concepts on stress in fish and the regulation of the immune system.
    Schlagwort(e): Biology ; Fisheries ; Limnology ; Bioassays ; Nervous system ; Immunity ; Biological stress ; Marine fish ; Pollution effects ; Kidneys ; Phagocytosis ; Italy ; Porto Marghera
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 111-123
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  • 47
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    Mussel eggs as indicators of mutagen exposure in coastal and estuarine environments (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5311 | 1256 | 2011-09-29 15:06:25 | 5311 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: The aim of this study was to develop a short-term genotoxicity assay for monitoring the marine environment for mutagens. Based on the developing eggs and embryos of the marine mussel Mytilus edulis, an important pollution indicator species, the test employs the sensitive sister chromatid exchange (SCE) technique as its end-point, and exploits the potential of mussel eggs to accumulate mutagenic pollutants from the surrounding sea water. Mussel eggs take up to 6 months to develop while in the gonad, which provides scope for DNA damage to be accumulated over an extended time interval; chromosome damage is subsequently visualised as SCEs in 2-cell-stage embryos after these have been spawned in the laboratory. Methods which measure biological responses to pollutant exposure are able to integrate all the factors (internal and external) which contribute to the exposure. The new cytogenetic assay allows the effects of adult exposure to be interpreted in cells destined to become part of the next generation.
    Schlagwort(e): Biology ; Environment ; Oceanography ; Marine molluscs ; Eggs ; Coastal zone ; Mutagens ; Indicator species ; Embryos ; Cytogenetics ; Pollution effects ; Bioassays ; Methodology
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 124-137
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  • 48
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    The microbiological quality of water: the nature of the problem (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5315 | 1256 | 2011-09-29 15:06:22 | 5315 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: Improvements in methods for the detection and enumeration of microbes in water, particularly the application of techniques of molecular biology, have highlighted shortcomings in the ”standard methods” for assessing water quality. Higher expectations from the consumer and increased publicity associated with pollution incidents can lead to an uncoupling of the cycle which links methodological development with standard-setting and legislation. The new methodology has also highlighted problems within the water cycle, related to the introduction, growth and metabolism of microbes. A greater understanding of the true diversity of the microbial community and the ability to transmit genetic information within aquatic systems ensures that the subject of this symposium and volume provides an ideal forum to discuss the problems encountered by both researcher and practitioner.
    Schlagwort(e): Biology ; Limnology ; Pollution ; Water quality ; Microbiology ; Microorganisms ; Hydrologic cycle ; Methodology ; Bacteria ; Bacterial counters ; Public health ; Microbial contamination ; Primary production ; Fungi ; Cryptosporidium
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 1-10
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  • 49
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    Biodiversity in drinking water distribution systems:a brief review (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5323 | 1256 | 2011-09-29 15:05:12 | 5323 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: In drinking water distribution systems, three groups of living organisms are usually found in the biofilm and circulating water: heterotrophic bacteria, free-living protozoa, and macro-invertebrates. Indirect evidence suggests that protozoa grazing in distribution systems can partially eliminate biomass production and accidental microbiological pollution. This paper examines the biodiversit in drinking water distribution systems.
    Schlagwort(e): Biology ; Limnology ; Water supply ; Biodiversity ; Food chains ; Bacteria ; Invertebrate larvae ; Escherichia coli
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 63-70
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  • 50
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    Persistence of viable but non-culturable bacteria during the production and distribution of drinking water (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5322 | 1256 | 2011-09-29 15:05:32 | 5322 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: The direct measurement of in situ respiring bacteria using 5-cyano-2,3-ditolyl tetrazolium chloride (CTC) shows that, especially for Gram-negative bacteria, large numbers of viable but non-culturable (VBNC) bacteria are present in finished water from a conventional water treatment plant, and the regrowth of bacteria along distribution networks can be seen rapidly by using this very sensitive technique. The level of bacterial inactivation with chlorine is much less important than has been previously supposed (based on experiments with non-injured laboratory strains of bacteria and classical culture techniques). Threshold values of VBNC bacteria leaving water treatment plants or regrowing along distribution systems have to be determined for better control of coliform regrowth and health- risks associated with the consumption of drinking water.
    Schlagwort(e): Biology ; Health ; Limnology ; Water supply ; Water treatment ; Bacteria ; Microbiological culture ; Bacterial counters ; Staining ; Growth curves ; France
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 54-62
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  • 51
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    The food of coarse fish (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5344 | 1256 | 2011-09-29 15:02:55 | 5344 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-10
    Beschreibung: Remarkably little has been published on the feeding habits of the non-salmonid fishes of British fresh waters. The following report briefly summarizes the results obtained from the examination of the stomach contents of some 2,700 fish, belonging to 19 species, which were obtained during 1939. The results of all examinations of gut contents were analysed, species by species, upon a simple basis of the presence of different types of food. Foodstuffs were divided up into six main categories— fish, molluscs, insects, crustaceans, higher plants together with filamentous algae, and diatoms—and the occurrence of members of any of these categories was recorded for each fish.
    Schlagwort(e): Biology ; Fisheries ; Limnology ; Coarse fish ; Feeding ; Feeding behaviour ; Fishery surveys ; Food organisms ; Gutting ; England
    Repository-Name: AquaDocs
    Materialart: book , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 315-322
    Format: 33
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  • 52
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    Freshwater Biological Association 1929-1979. The first fifty years (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/9627 | 1256 | 2013-10-27 12:24:04 | 9627 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-07
    Beschreibung: Booklet telling the story of the FBA from its founding in 1929 until its Golden Jubilee in 1979. The booklet aimed to produce a readable account of those aspects of freshwater biology that have been among the main themes of the Association's research, as well as some aspects of its history and the philosophy guiding its foundation. The publication includes many images of the FBA's work and history as well as images and illustrations on lake ecology and applied science.
    Schlagwort(e): Biology ; Ecology ; Limnology ; Freshwater scientists ; Freshwater sciences ; Limnology ; Organisations
    Repository-Name: AquaDocs
    Materialart: book , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 39
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  • 53
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    Actinomycetes and actinophage in fresh water (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5161 | 3949 | 2011-09-29 15:17:51 | 5161 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-08
    Beschreibung: Actinomycetes are a group of micro-organisms which lie, in classification, half-way between the fungi and the bacteria. They may be isolated from the plating of leaf washings, water samples and mud dilutions on to nutrient agar (with incorporated actidione to eliminate fungi). The predominant genus varied with the source of the sample. An attempt was also made to isolate the phages of some Actinomycetes. A search was made in the typical environments of the host, for the virus. In this way actinophage were also isolated; and shown to be capable of being transmitted from one host strain to another host strain within 1 sp or from one host to another within 1 genus; i.e. polyvalent.
    Schlagwort(e): Biology ; Ecology ; Environment ; Bacteria ; Fungi ; Microbiological culture ; Viruses ; Actinomycetes ; Annual report
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
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  • 54
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    The production of algae growing on gravel in a chalk-stream (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5160 | 3949 | 2011-09-29 15:19:35 | 5160 | Freshwater Biological Association
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    Publikationsdatum: 2021-07-08
    Beschreibung: Epilithic algae, ie that growing on the surface of stones, was studied as part of the work on the energy flow of the chalk-stream ecosystem, by the River Laboratory. The study area was on Bere Stream and 2 neighbouring streams. The algal biomass was estimated from analysis of chlorophyll a. In Bere Stream the peak chlorophyll a cover occurred in April, while in the neighbouring streams, which have considerably lower nutrient levels, there was on peak. Assuming that 2% of a diatoms dry wt is chlorophyll a, then even in mid-April the biomass of epilithic algae amounted to no more than 15 g dry wt m Super(-2) of exposed gravel. Annual production was calculated to be 〉 15 times greater than biomass. The estimation of net primary production is always difficult for benthic floras and comparisons are especially difficult when different methods are used. But these figures contrast sharply with those for Ranunculus (water crowfoot) which has a ratio of annual production to maximal seasonal biomass of 1:16. The accumulation of algal biomass is apparently being prevented. Some organic matter may be excreted; some algae will be washed off the bed of the stream by current and grazing by herbivorous invertebrates will also tend to prevent algal accumulation.
    Schlagwort(e): Biology ; Ecology ; Environment ; Phytoplankton ; Algae ; England ; Dorset ; Annual report
    Repository-Name: AquaDocs
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    Format: application/pdf
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  • 55
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    Year class strengths of perch and pike in Windermere (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5158 | 3949 | 2011-09-29 15:19:31 | 5158 | Freshwater Biological Association
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    Publikationsdatum: 2021-07-08
    Beschreibung: The pike (Esox lucius) year classes are more stable than those of the perch (Perca fluviatilis), and have been shown to be closely correlated with temp conditions during the first few months of life. The perch year class strengths have been more variable; for success they require the presence of several positive conditions and the absence of many adverse conditions which could cause failure, a favourable combination of circumstances rarely occurs. The conclusions refer only to Windermere from 1941-1964.
    Schlagwort(e): Biology ; Ecology ; Limnology ; Age composition ; Esox lucius ; Perca fluviatilis ; England ; Lake District ; Annual report
    Repository-Name: AquaDocs
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    Format: application/pdf
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  • 56
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    The ecology of the Gussage, a lined winterbourne (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5165 | 3949 | 2011-09-29 15:18:21 | 5165 | Freshwater Biological Association
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    Publikationsdatum: 2021-07-08
    Beschreibung: The Gussage, a Dorset winterhourne (intermittent chalk stream), has been used to convey water from a compensation borehole to the River Allen to supplement its flow to meet demand for water. Sections of the Gussage have been lined with chalk, butyl sheeting or polythene sheeting to prevent water loss through the porous bed. The effects of this major environmental modification associated with these abstraction practices in the winterbourne catchments have been studied in the Gussage system since 1973. To compensate for the lack of adequate pre-lining data, comparative studies have been made on 3 small unlined chalk streams of varying flow regimes, ie. the Crichel (a winterbourne), the North Winterbourne and the Tarrant (permanent discharge in the reaches studies). The distribution of macrophytes and invertebrates in winterbournes are compared with that in natural and artificial permanent streams. Statistical analysis showed samples from the winterbourne sites and the unmodified permanent stream sites are quite distinct, despite the fact that no samples were taken from winterbourne sites during the dry phase. This emphasizes the differences between the fauna of an intermittent and a permanent stream and suggests that alteration of the flow regime could be a significant factor. Where flow regime has been altered, as in the Gussage downstream of the borehole, the samples occupy an intermediate position. Within this group of modified sites there is no apparent gross difference between the invertebrates of lined or unlined reaches.
    Schlagwort(e): Biology ; Ecology ; Environment ; Ecological distribution ; Ecology ; Watersheds ; England ; Dorset ; Annual report
    Repository-Name: AquaDocs
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    Format: application/pdf
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  • 57
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    Physiological aspects of the life cycle of the river lamprey, Lampetra fluviatilis L (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5172 | 3949 | 2011-09-29 15:18:50 | 5172 | Freshwater Biological Association
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    Publikationsdatum: 2021-07-08
    Beschreibung: The life cycle of the river lamprey, L. fluviatilis, is reviewed. The larval lamprey, or ammocoete, is a blind, filter-feeding animal, which normally lies concealed in the silt deposits of streams and rivers. After a period of 3-5 years in fresh water the ammocoete undergoes a metamorphosis in the summer months into a sexually immature, non-feeding stage known as the macrophthalia, which is active. This stage migrates downstream in late winter. It adopts a parasitic existence, in intertidal areas. After 18 months it returns to spawn in fresh water, after a final freshwater stage lasting up to 9 months. The river lamprey dies within a few days after the spawning period of 3-4 weeks, and none survive to spawn the following year.
    Schlagwort(e): Biology ; Ecology ; Fisheries ; Life cycle ; Physiology ; Lampetra fluviatilis ; Annual report
    Repository-Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
    Format: 40-46
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  • 58
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    Limnetic crustaceans in Esthwaite water and adjacent lakes (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5175 | 3949 | 2011-09-29 15:19:19 | 5175 | Freshwater Biological Association
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    Publikationsdatum: 2021-07-09
    Beschreibung: Limnetic crustaceans (i.e. those which live in the open water of lakes and ponds) were investigated in Esthwaite water and adjacent lakes. These are represented by two groups, Copepoda and Cladocera.
    Schlagwort(e): Biology ; Ecology ; Limnology ; Freshwater crustaceans ; Zooplankton ; Lakes ; Cladocera ; England ; Esthwaite Water ; Annual report
    Repository-Name: AquaDocs
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    Format: application/pdf
    Format: application/pdf
    Format: 70-73
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  • 59
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    Bacterial production of nitrate in aquatic systems: progress report. Nitrate-loss processes in raw water (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5126 | 1256 | 2011-09-29 15:23:16 | 5126 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-08
    Beschreibung: This short interim progress report builds on previous progress reports which have described the quantification of the process both within and between lakes of different degrees of eutrophication. These data indicated that slight changes in methodology, particularly when investigating sediment deposits, could grossly affect the measured activity. The aim of the present research was an attempt to rationalize these differences. If this could be achieved it would enable meaningful interpretation of published data obtained using different methods and therefore enlarge the available database. In addition some observations have been made on the production of nitrite by Grasmere profundal sediment slurries sampled during the circulation period.
    Schlagwort(e): Biology ; Ecology ; Limnology ; Freshwater lakes ; Nitrification ; Sedimentation ; Ammonia ; Slurries ; England ; Grasmere Lake
    Repository-Name: AquaDocs
    Materialart: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 2
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  • 60
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    The changing chemical composition of chalk streams and rivers (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5157 | 3949 | 2011-09-29 15:19:58 | 5157 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-08
    Beschreibung: The area studied was the River Frome system below Dorchester. The main river has its origins mainly in chalk springs, although some of its tributaries have surface run-off from farm lands and heath-lands. Thus the chemistry of the river is affected by changes in land practice and differences in the geology of the catchment area. Regular chemical analysis of chalk waters started at the River Laboratory in 1964, Regular weekly analyses have been carried out since 1965 at Bere Stream (a small chalk stream) and the River Frome (a large chalk stream); also single samples have been analysed to provide preliminary information. In 1970-71 an attempt was made to discover the contribution each main source made to the flow and chemical composition of the River Frome. Results of these investigations are presented in the paper.
    Schlagwort(e): Chemistry ; Environment ; Chemical analysis ; Chemical composition ; Rivers ; Stream flow ; Annual report ; England ; Dorset
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  • 61
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    Feeding, metabolism and growth of brown trout (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5170 | 3949 | 2011-09-29 15:18:46 | 5170 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-08
    Beschreibung: A short review of the work carried out by the FBA on feeding and growth of brown trout is presented in this article. Since the amount of work done on this subject is quite extensive, this review has to be very selective. The work has been previously described in 10 papers, 9 of which were written by the author (J.M.Elliott) and 1 written by the author and W.Davison- references for these, and the pioneer work of M.E.Brown and F.T.K.Pentelow, are supplied at the end of the article.
    Schlagwort(e): Biology ; Ecology ; Feeding ; Taxonomy ; Metabolism ; Salmo trutta ; Annual report
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
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  • 62
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    Geochemistry of lipids in lacustrine sediments (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5171 | 3949 | 2011-09-29 15:18:48 | 5171 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-08
    Beschreibung: An explanation of the basic premises of the subject and its terminology is given. The article then outlines aspects of research on the organic material found in lacustrine sediments, and the analytical methods involved.
    Schlagwort(e): Chemistry ; Earth Sciences ; Diagenesis ; Freshwater lakes ; Geochemistry ; Lipids ; Sediment analysis ; Annual report
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 45-56
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  • 63
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    Aspects of the biology of coarse fish in the Dorset Stour (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5178 | 3949 | 2011-09-29 15:16:57 | 5178 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: Some of the results from an investigation of five species of coarse fish, in the Stour River, carried out from 1968-1978 are presented in this article. The species involved were: Rutilus rutilis, Leuciscus leuciscus, L. cephalus, Esox lucius and Perca fluviatilis : which are of particular interest to anglers. Although these species show some similarities, as in the shape of the annual and seasonal growth curves, in most other respects each species occupies a distinct niche in the ecosystem and has a life-history strategy peculiar to itself. In this study only 5 species were investigated. When all the species present are considered the relationships or diversities suggested here will therefore be made far more complex.
    Schlagwort(e): Biology ; Ecology ; Life history ; Coarse fish ; Rutilus rutilus ; Leuciscus leuciscus ; Leuciscus cephalus ; Esox lucius ; Perca fluviatilis ; England ; River Stour ; Annual report
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 51-59
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  • 64
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    Eggs of Ephemeroptera (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5182 | 3949 | 2011-09-29 15:17:19 | 5182 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: Information on fecundity, oviposition behaviour, egg hatching, and parthenogenetic development of Ephemeroptera is reviewed and summarized.
    Schlagwort(e): Biology ; Ecology ; Reproduction (biology) ; Ephemeroptera ; Annual report
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 41-52
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  • 65
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    Experiments using an artificial stream to investigate the seasonal growth of chalk-stream algae (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5190 | 3949 | 2011-09-29 15:14:57 | 5190 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: Research into the production ecology of chalk streams using a large artificial recirculating stream is described. Physical chemical processes including calcium and inorganic phosphate levels, and exchange of gaseous carbon dioxide in both a simple closed system and a circulating system with gravel substrate have been monitored in both light and dark conditions. Further experiments were concerned with the seasonal changes in algal growth over the gravel substrate with constant water velocities and replenishment. The algal population, composed mainly of the diatoms Achnanthes minutissima, Meridion circulare, Nitzschia fonticola and Synedra ulna reached a peak in mid May and declined rapidly during June. Concentrations of phosphate phosphorus fell as the diatoms grew but was not thought to limit growth. Silicate concentrations followed the diatom cycle closely but never fell below 0.8 mg/l Si. It is possible that one of the nutrients may have been limiting the rate of growth due to steep diffusion gradients through the algal mat. In the last summer and autumn a hard calcareous crust composed of the green alga Gongrosira incrustans and the blue green alga Homeothrix varians , developed. The channel stream is compared with the natural conditions found in chalk streams.
    Schlagwort(e): Biology ; Ecology ; Algae ; Fresh water ; Growth ; Phosphates ; Population dynamics ; Seasonal variations ; Silicates ; Achnanthes minutissima ; Meridion circulare ; Synedra ulna ; Annual report
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 63-75
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  • 66
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    Monitoring the trophic status of reservoirs (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5206 | 1256 | 2011-09-29 15:16:23 | 5206 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: The current situation of regional, rather' than national, problems of eutrophication in standing waters has been widely aired in recent reports. A reliable, quantitative data base is a prerequisite to future trend monitoring, a concensus view of those reports. The objective of this report is to establish requirements, methodology and a minimal data set for nutrient and algae status in water supply reservoirs in England which may be used as a protocol for future trend monitoring.A pilot study has been carried out to assess the relative merits of different sampling strategies, the choice of which has major implications for the cost of sample collection. This short report suggests that consider the possibility of designating a few sites as ”baseline sites” at which detailed changes in trophic status as monitored by the more labour-intensive parameters would be collected on a regular, long term basis to help in the interpretation of the low cost survey results.
    Schlagwort(e): Biology ; Ecology ; Limnology ; Freshwater lakes ; Eutrophication ; Monitoring ; Surveying ; England ; Grasmere Lake
    Repository-Name: AquaDocs
    Materialart: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 2
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  • 67
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    Impact of watercress cultivation on river water quality: progress report for the period, January - December 1987 (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5210 | 1256 | 2011-09-29 15:16:44 | 5210 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: The objective of this short project progress report is to investigate the possible water quality implications of modern watercress growing practices. Chalk receiving watercourses are usually of high supply, amenity, game fishing and fish farming value. Any headwater pollution load, therefore, needs characterising and quantifying. Two sites of watercress farming were studied in 1986-87 and nutrient levels examined. Different approaches of watercress farmers in Dorset and Hampshire are summarised.
    Schlagwort(e): Biology ; Ecology ; Limnology ; Rivers ; Aquaculture ; Aquaculture enterprises ; Aquaculture techniques ; Nutrients (mineral) ; England
    Repository-Name: AquaDocs
    Materialart: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 3
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  • 68
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    Freshwater survey of the ditches around Hinkley Point Power Station, 20 June 1985 (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5213 | 1256 | 2011-09-29 15:14:36 | 5213 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: Sampling was concentrated on the North Moor region and the series of ditches which drained this area to the Bristol Channel. Although most ditches were not deep the mud substratum precluded sampling from within the habitat. All samples were taken with a pond net from the banks. Efforts were made to sample each part of the habitat although in some ditches the macrophyte growth was so intense as to make sampling difficult particularly of the sediments. Organisms were identified on the 10 sampling sites.
    Schlagwort(e): Biology ; Ecology ; Limnology ; Trenching ; Biological sampling ; Identification ; Biological surveys ; England ; Somerset
    Repository-Name: AquaDocs
    Materialart: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 53
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  • 69
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    Automatic identification and enumeration of algae (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5207 | 1256 | 2011-09-29 15:16:29 | 5207 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: A good understanding of the population dynamics of algal communities is vital in many ecological and pollution studies of freshwater and oceanic systems. Present methods require manual counting and identification of algae and can take up to 90 min to obtain a statistically reliable count on a complex population. Several alternative techniques to accelerate the process have been tried on marine samples but none have been completely successful because insufficient effort has been put into verifying the technique before field trials. The objective of the present study has been to assess the potential of in vivo fluorescence of algal pigments as a means of automatically identifying algae. For this work total fluorescence spectroscopy was chosen as the observation technique.
    Schlagwort(e): Biology ; Ecology ; Limnology ; Algae ; Identification ; Methodology ; Fluorescence ; Fluorescence spectroscopy ; England
    Repository-Name: AquaDocs
    Materialart: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 31
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  • 70
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    The effects of environmental stress on the physiology of growth in rainbow trout, Salmo gairderi Richardson (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5211 | 1256 | 2011-09-29 15:14:56 | 5211 | Freshwater Biological Association
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    Publikationsdatum: 2021-07-09
    Beschreibung: There is little doubt that both mammalian and teleost growth hormones can accelerate growth and increase food conversion efficiency in all commonly-reared species of salmonid fish. In those vertebrates that have been closely studied (predominantly mammals), the pituitary hormone somatotropin (GH or growth hormone) is a prime determinant of somatic growth. The hormone stimulates protein biosynthesis and tissue growth, enhances lipid utilization and lipid release from the adipose tissues (a protein-sparing effect) and suppresses the peripheral utilization of glucose. The present study is a prerequisite for future work on growth hormone physiology in salmonids and should contribute to our understanding of the mechanisms of growth suppression in stressed fish. Plasma growth hormone (GH) levels were measured in rainbow trout using a radioimmunoassay developed against chinook salmon growth hormone.
    Schlagwort(e): Biology ; Ecology ; Limnology ; Salmon fisheries ; Freshwater fish ; Hormones ; Blood ; Growth ; England ; Oncorhynchus mykiss
    Repository-Name: AquaDocs
    Materialart: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 47
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  • 71
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    Joint research project on the aquatic ecotoxicity of organo-aluminium: Chemical reactions. First interim report (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5225 | 1256 | 2011-09-29 15:12:36 | 5225 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: The overall goal of the joint research project is to relate the chemical reactions involved in the formation of organo-aluminium complexes under acid conditions to their toxic effects on the physiology of aquatic organisms. Finally, this research is intended to predict toxic effects arising from acidity and aluminium under varying environmental conditions. This interim report examines the chemical modelling of ion-binding by humic substances where a computer model has been developed and is being tested using field data, and conditions required for the precipitation of aluminium in surface waters.
    Schlagwort(e): Chemistry ; Limnology ; Pollution ; Modelling ; Models ; Humic acids ; Surface water ; Aluminium compounds ; Aluminium ; Ions ; Toxicity ; England ; Duddon River
    Repository-Name: AquaDocs
    Materialart: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 26
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  • 72
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    Decomposition in lake sediments: bacterial action and interaction (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5239 | 3949 | 2011-09-29 15:13:47 | 5239 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-06-24
    Beschreibung: This review discusses the processes involved in the decomposition of organic carbon derived initially from structural components of algae and other primary producers. It describes how groups of bacteria interact in time and space in a eutrophic lake. The relative importance of anaerobic and aerobic processes are discussed. The bulk of decomposition occurs within the sediment. The role of bacteria in the nitrogen cycle and the iron cycle, and in sulphate reduction and methanogenesis as the terminal metabolism of organic carbon are described.
    Schlagwort(e): Biology ; Chemistry ; Anaerobic bacteria ; Bacteria ; Biodegradation ; Carbon cycle ; Eutrophic lakes ; Fresh water ; Geochemical cycle ; Iron ; Manganese ; Nitrates ; Nitrogen cycle ; Organic carbon ; Oxygen consumption ; Partical size ; Sedimentation ; Sulphates ; Sulphur ; Annual report
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 31-44
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  • 73
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    Water mites: predators and parasites (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5240 | 3949 | 2011-09-29 15:13:51 | 5240 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: The majority of water mites found in freshwater belong to the Hydrachnellae, a group which exhibit striking morphological diversity. This paper reviews work on the structure, morphology and taxonomy. The role of water mites as predators, their life history and their parasitic associations with aquatic insect or freshwater mollusc hosts is discussed along with the distribution of water mites in the British Isles.
    Schlagwort(e): Biology ; Ecology ; Animal morphology ; Distribution records ; Fresh water ; Hosts ; Larvae ; Life cycle ; Parasites ; Predators ; Taxonomy ; Acari ; Arachnida ; Hydrachnellae ; British Isles ; Annual report
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 45-59
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  • 74
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    The classification and prediction of macroinvertebrate communities in British rivers (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5242 | 3949 | 2011-09-29 15:13:57 | 5242 | Freshwater Biological Association
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    Publikationsdatum: 2021-07-09
    Beschreibung: This article describes the progress of the River Communities Project which commenced in 1977. This project aimed to develop a sensitive and practical system for river site classification using macroinvertebrates as an objective means of appraising the status of British rivers. The relationship between physical and chemical features of sites and their biological communities were examined. Sampling was undertaken on 41 British rivers. Ordination techniques were used to analyze data and the sites were classified into 16 groups using multiple discrimination analysis. The potential for using the environmental data to predict to which group a site belonged and the fauna likely to be present was investigated.
    Schlagwort(e): Biology ; Ecology ; Aquatic communities ; Check lists ; Classification Systems ; Environmental factors ; Fresh water ; Rivers ; Sampling ; Invertebrata ; Annual report
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 80-93
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  • 75
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    'The highly nervous system of the English Lakes': aquatic ecosystem sensitivity to external changes, as demonstrated by diatoms. (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5241 | 3949 | 2011-09-29 15:13:56 | 5241 | Freshwater Biological Association
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    Publikationsdatum: 2021-07-09
    Beschreibung: The author reviews the stratigraphic diatom profile of Cumbrian lakes since the last glaciation. Knowledge of both present and previous interglacials suggests that a natural cycle of change is imposed on all lakes. The nature of inwashed material is dependant on climatic and natural soilcycles and this affects the water quality and sensitive aquatic biota. Anthropogenic effects are superimposed upon this with forest clearance and pollution. Whilst some Cumbrian diatom profiles extend over the entire post glacial, others cover only detailed sections relating to particular problems. Causes and effect of recent changes in lakes can be studied using indicator species but palaeocology contributes greatly to understanding of long term changes.
    Schlagwort(e): Biology ; Limnology ; Biostratigraphy ; Climatic changes ; Colonization ; Cores ; Environmental effects ; Eutrophication ; Fossil diatoms ; Historical account ; Land use ; pH ; Palynology ; Sediment analysis ; Sedimentology ; Water quality ; Lake District ; Cumbria ; Annual report
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 60-79
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  • 76
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    Turbidity and plant growth in large slow-flowing lowland rivers. Progress Report: March 1989 (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5245 | 1256 | 2011-09-29 15:14:09 | 5245 | Freshwater Biological Association
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    Publikationsdatum: 2021-07-09
    Beschreibung: The River Great Ouse is a highly managed large lowland river in eastern England. It drains rich arable land in the Midlands and Eastern England and over the years nutrient concentrations have increased and there is a general perception that the clarity of the water has decreased. The main river channels have been dredged a number of times partly for flood control reasons but also for recreational boating and navigation activities. The period covered by this first report has been used to develop specific methodology and instrumentation for measuring turbidity, suspended solids and underwater irradiance for conditions found in the middle abd lower reaches of the River Great Ouse. Sampling strategies have been developed and an extensive sampling programme is now underway covering phytoplankton, suspended solids and turbidity in relation to algal epiphyte growth on underwater macrophytes. Preliminary data are presented relating light levels on the river bed to the river bed profile, turbidity levels and phytoplankton chlorophyll a concentrations. Studies are underway concerning the extent of macrophyte cover and periphyton densities.
    Schlagwort(e): Biology ; Ecology ; Limnology ; Rivers ; Seasonal variations ; Turbidity ; Aquatic pl ; England ; Great Ouse River ; Periphyton ; Phytoplankton ; Chlorophylls
    Repository-Name: AquaDocs
    Materialart: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 12
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  • 77
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    Africa: the FBA connection (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5246 | 3949 | 2011-09-29 15:08:18 | 5246 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: Since its inception in the 1930's the Freshwater Biological Association at Windermere, England has been involved in research on African lakes and rivers. Research has included general and multidisciplinary surveys of many lakes including Lake Victoria, Lake Tanganyika, Lake Nyasa (Lake Malawi) and Lake George. The hydrobiology of the River Nile has also been studied. Research into physical and chemical limnology, phytoplankton ecology and primary productivity, invertebrate biology, freshwater fish and fisheries.
    Schlagwort(e): Biology ; Fisheries ; Limnology ; Algae ; Chemical limnology ; Fisheries ; Freshwater fish ; Freshwater lakes ; Hydrobiology ; Invertebrate zoology ; Parasitology ; Physical limnology ; Phytoplankton ; Primary production ; Research programs ; Rivers ; Tropical lakes ; Cichlidae ; Crustacea ; Invertebrata ; Mollusca ; Pisces ; Africa ; River Nile ; Lake Victoria ; Annual report
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 57-82
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  • 78
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    Physiological ecology of the ciliated protozoon Loxodes (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5244 | 3949 | 2011-09-29 15:14:07 | 5244 | Freshwater Biological Association
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    Publikationsdatum: 2021-07-09
    Beschreibung: Loxodes faces special problems in living close to the oxic-anoxic boundary. In tightly-stratified ponds like Priest Pot its optimum environment may be quite narrow and it can be displaced by the slightest turbulence. Loxodes cannot sense an O sub(2) gradient directly but its ability to perceive gravity allows it to make relatively long vertical migrations. It is also sensitive to light and oxygen and it uses these environmental cues to modulate the parameters of its random motility: in the dark, it aggregates at a low O sub(2) tension and in bright light it aggregates in anoxic water. The oxic-anoxic boundary is also a zone where O sub(2) may be a scarce and transient resource, but Loxodes) can switch to nitrate respiration and exploit the pool of nitrate that often exists close to the base of the oxycline.
    Schlagwort(e): Biology ; Ecology ; Anoxic conditions ; Dissolved oxygen ; Ecophysiology ; Freshwater lakes ; Light effects ; Physiochemical properties ; Turbulence ; Vertical migrations ; Loxodes ; England ; Cumbria ; Annual report
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 33-56
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  • 79
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    Biological and climatic influences on the dace Leuciscus leuciscus in a southern chalk-stream (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5247 | 3949 | 2011-09-29 15:08:19 | 5247 | Freshwater Biological Association
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    Publikationsdatum: 2021-07-09
    Beschreibung: The dace, Leuciscus leuciscus (L.) is an important cyprinid in terms of population biomass in chalk streams of southern England. Dace recruitment has been shown to vary widely from year to year and it is thought that this variation is largely as a result of the influence of abiotic factors, chiefly water temperature. From 1968 to 1981 there was a thirteen-fold difference in the year class structure index between the minimum index (0.25 in 1972) and the maximum (3.21 in 1976). The problems of such variation, especially those that could ensue from a succession of poor year-classes, are offset by the spread of reproductive effort by each female over several years.
    Schlagwort(e): Biology ; Chemistry ; Fisheries ; Abiotic factors ; Age composition ; Annual variations ; Climate ; Fecundity ; Fish eggs ; Fish larvae ; Freshwater fish ; Life history ; Mortality ; Population dynamics ; Predation ; Recruitment ; Sexual reproduction ; Survivial ; Water temperature ; Cyprinidae ; Leuciscus leuciscus ; England ; Dorset ; Chalk streams ; Annual report
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 83-96
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  • 80
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    Experimental design in fluvial ichthyology: getting the most for your money (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5248 | 3949 | 2011-09-29 15:08:21 | 5248 | Freshwater Biological Association
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    Publikationsdatum: 2021-07-09
    Beschreibung: In field biology, cost efficiency is an essential element of experimental design, with ramifications extending well beyond the basic monetary considerations associated with labour and equipment acquisition. Current economic constraints often require scientists to undertake many technical, secretarial and managerial tasks in addition to those associated with data collection, analysis, interpretation and publication. Because the time spent to process material in the laboratory can rarely be shortened without compromising the integrity of the results, it is imperative that field experiments be well-organised, addressing as many aspects of the problem as possible during the same sampling excursion. The sampling strategy employed should provide a maximum of good field data with a minimum cost of time and effort.
    Schlagwort(e): Biology ; Management ; Costs ; Efficency ; Experimental research ; Ichthyology ; Annual report
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 68-87
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  • 81
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    Analysis and adsorption of phosalone on aquatic sediment (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5257 | 1256 | 2011-09-29 15:09:23 | 5257 | Freshwater Biological Association
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    Publikationsdatum: 2021-07-09
    Beschreibung: Phosalone is a non systematic, wide spectrum organophosphate pesticide which was discovered in 1961 in the laboratories of the Societe des Usines Chimique Rhone-Poulenc in France. It has been approved for commercial use since 1964 in France, in Australia since 1966, in the United Kingdom in 1967 and in many other countries including Japan, Egypt, USSR and the USA. This study provides a full literature review on all aspects of phosalone including its physical, biological and chemical characteristics, and analytical methods of analysis with particular reference to soils/sediments. Furthermore, it aims to develop a method for the determintion of phosalone in aquatic sediments and to determine the adsorption of phosalone onto kaolinite.
    Schlagwort(e): Chemistry ; Limnology ; Pollution ; Insecticides ; Metabolism ; Toxicity ; Biodegradation ; Adsorption
    Repository-Name: AquaDocs
    Materialart: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 54
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  • 82
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    Joint Anglo-Soviet biological surveillance exercise on River Dnieper (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5260 | 1256 | 2011-09-29 15:09:28 | 5260 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: As one part of an on-going programme concerned with environmental protection as provided for under the terms of a UK/USSR Joint Environmental Protection Agreement signed in London, 21 May 1974, a seminar — ”The elaboration of the scientific basis for monitoring the quality of surface water by hydrobiological indices” was held at Valdai in Russia 12—14 July, 1976. As a continuation of this theme it was agreed that delegations of hydrobiologists from each side should carry out reciprocal visits to carry out comparative field tests on selected systems of biological surveillance in use in the respective countries. In May 1978 a team of British hydrobiologists visited the USSR, under the auspices of the Department of Environment, to carry out joint exercises on the River Dnieper and some tributaries. This paper reports the results of selected methods used by the British side when applied to the conditions found in the River Dnieper.
    Beschreibung: UK Hydrobiologists' Report - Pollution Report No.8
    Schlagwort(e): Biology ; Ecology ; Limnology ; Sampling ; Samplers ; Methodology ; Rivers ; International cooperation ; Water reservoirs ; Ukraine ; Dnieper River
    Repository-Name: AquaDocs
    Materialart: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 21
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  • 83
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    Bassenthwaite Lake: a general assessment of environmental and biological features and their susceptibility to change (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5254 | 1256 | 2011-09-29 15:09:03 | 5254 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: Bassenthwaite (Lake) is one of the larger Cumbrian lakes, certainly one of the most distinctive, and of considerable conservation and amenity value. Although its shores lack sizeable settlements, its main inflow receives sewage effluent from a major tourist centre (Keswick) and is subject to episodic floods. These influences, the growing development of leisure activities at the lake (e.g. sailing, time-share units), and recent road-construction, have led to past appraisals of ecological impacts and lake management. The lake has not been the subject of intense and long-term ecological study, but much scattered information exists that is relevant to future management decisions. In the present Report, commissioned by North West Water, such information - published and unpublished - is surveyed. Especial attention is given to evidence bearing on susceptibility to change, affecting the lake environment and its biota or species of conservation interest. Extensive use has been made of the results of a recent (1986-7) seasonal survey by the FBA.
    Schlagwort(e): Biology ; Ecology ; Limnology ; Freshwater lakes ; Freshwater ecology ; Limnology ; Hydrology ; Phytoplankton ; Zooplankton ; Freshwater fish ; Benthos ; England ; Bassenthwaite Lake
    Repository-Name: AquaDocs
    Materialart: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 93
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  • 84
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    Genetic engineering of microorganisms: free release into the environment (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5250 | 3949 | 2020-08-23 05:42:00 | 5250 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: Genetic engineering now makes possible the insertion of DNA from many organisms into other prokaryotic, eukaryotic and viral hosts. This technology has been used to construct a variety of such genetically engineered microorganisms (GEMs). The possibility of accidental or deliberate release of GEMs into the natural environment has recently raised much public concern. The prospect of deliberate release of these microorganisms has prompted an increased need to understand the processes of survival, expression, transfer and rearrangement of recombinant DNA molecules in microbial communities. The methodology which is being developed to investigate these processes will greatly enhance our ability to study microbial population ecology.
    Schlagwort(e): Biology ; Ecology ; Environment ; Aquatic environment ; Genetics ; Microorganisms ; England ; Annual report
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 91-107
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  • 85
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    A general assessment of environmental and biological features of Windermere and their susceptibility to change (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5255 | 1256 | 2011-09-29 15:09:19 | 5255 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: Bassenthwaite (Lake) is one of the larger Cumbrian lakes, certainly one of the most distinctive, and of considerable conservation and amenity value. Although its shores lack sizeable settlements, its main inflow receives sewage effluent from a major tourist centre (Keswick) and is subject to episodic floods. These influences, the growing development of leisure activities at the lake (e.g. sailing, time-share units), and recent road-construction, have led to past appraisals of ecological impacts and lake management. The lake has not been the subject of intense and long-term ecological study, but much scattered information exists that is relevant to future management decisions. In the present Report, commissioned by North West Water, such information - published and unpublished - is surveyed. Especial attention is given to evidence bearing on susceptibility to change, affecting the lake environment and its biota or species of conservation interest. Extensive use has been made of the results of a recent (1986-7) seasonal survey by the FBA.
    Schlagwort(e): Biology ; Ecology ; Limnology ; Freshwater lakes ; Freshwater ecology ; Limnology ; Hydrology ; Phytoplankton ; Zooplankton ; Freshwater fish ; Sediments ; England ; Windermere Lake
    Repository-Name: AquaDocs
    Materialart: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 150
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  • 86
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    Polyphemus pediculus (L.) (Cladocera) as a possible indicator of water quality (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5268 | 1256 | 2011-09-29 15:10:26 | 5268 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: Usually stenobiotic species are used as hydrobiological indicators of the degree of pollution in natural waters. Cladocera are eurybiotic organisms, therefore their role as specific indicators of the water quality is considered to be insignificant. However, considering new methods Cladocera at present are more and more often used as indicators of oligo- and mesosaprobic waters as well as of the presence of considerable amounts of easily degradable organic matter. Work over many years on the biology of Polyphemus pediculus, this striking representative of the order Cladocera, convinced the author of the possibility of using this species not only as an indicator of water purity but also for the estimation of the degree of water pollution as well as of water characteristics such as colour, turbidity, oxgen content and chemical composition. P. pediculus is one of the most common and abundant species of planktonic crustaceans in shallow waters of reservoirs, rivers, lakes, ponds and temporary water bodies.
    Schlagwort(e): Biology ; Limnology ; Pollution ; Methodology ; Ecosystem management ; Water quality control ; Freshwater crustaceans ; Indicator species
    Repository-Name: AquaDocs
    Materialart: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 5
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  • 87
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    Determination of water quality in lakes by biological indices (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5269 | 1256 | 2011-09-29 15:10:28 | 5269 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: Some problems of evaluation of water quality by biological indices which can be applied in the practice of ecological monitoring on water bodies are considered in this report. Taking into account, that ecological monitoring is the most urgent for large lakes, situated in civilised (urbanised) and (or) agrarian landscapes the corresponding problems will be considered mainly in conformity with large deep lakes of temperate latitudes. The aim is a general evaluation of some of the methods from the point of view of their possible application for monitoring on large water bodies.
    Schlagwort(e): Biology ; Limnology ; Pollution ; Ecosystem management ; Water quality control ; Freshwater lakes ; Indicators ; Classification ; Water quality ; Russia
    Repository-Name: AquaDocs
    Materialart: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 20
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  • 88
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    Approval of systems of Biological Indication of Water Quality under the auspices of the Severn-Trent Water Authority, UK (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5271 | 1256 | 2011-09-29 15:10:31 | 5271 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: In accordance with the plan for joint Anglo-Soviet scientific and technical collaboration on environmental problems, the comparative evaluation of systems of hydrobiological analysis of the surface water quality started in 1977 at the Regional Laboratory of the Severn-Trent Water Authority in Nottingham were continued in the spring of 1978. The investigations were carried out under the auspices of the Institute of Hydrobiology of the Academy of Sciences of the Ukrainian SSR. Hydrobiological and hydrochemical samples were collected by Soviet and British specialists from the Kiev reservoir and the rivers Dnieper, Sozh, Desna and Snov. The possible approved methods to be adopted were evaluated from the samples using the phytoperiphyton, phytoplankton, zooplankton and zoobenthos against a background of hydrochemical characteristics.
    Schlagwort(e): Biology ; Limnology ; Pollution ; Rivers ; Water quality ; Water quality control ; Indicators ; Indicator species ; Phytoplankton ; International cooperation ; Ukraine
    Repository-Name: AquaDocs
    Materialart: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 29
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  • 89
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    The colonization of Windermere by Crangonyx pseudogracilis (Crustacea, Amphipoda) 1961 to 1964 (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5280 | 1256 | 2011-09-29 15:11:13 | 5280 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: C. pseudogracilis , was first seen in the South Basin of Windermere in 1960. The colonization of the lake from South to North is described (1961 to 1964). The relationship with Asellus and Gammarus is mentioned. Possible reasons for its successful colonization are discused as are the methods by which it may have been transported to the lake.
    Schlagwort(e): Biology ; Ecology ; Limnology ; Malacostraca ; colonization ; Freshwater crustaceans ; England ; Lake Windermere
    Repository-Name: AquaDocs
    Materialart: book , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 13
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  • 90
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    A bibliography of works for the identification of freshwater invertebrates in the British Isles (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5276 | 1256 | 2011-09-29 15:10:59 | 5276 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: This bibliography covers the literature up to the end of 1978. The criteria used in the selection of references were that they should aid identification of invertebrates directly; thus, works solely concerned with the taxonomy of a particular group are in general omitted unless they contain a key. Some check-lists are however included where they give current nomenclature. The references are arranged alphabetically within each group and deal mainly with macro-invertebrates but include available keys to some microscopic invertebrates. Internal parasites and hymenopterous parasitoids are omitted. For insects the life stages to which the key applies are given where this is not clear in the reference. A number of keys to non-aquatic stages have been included in the hope that they may prove useful in certain circumstances. In addition, under a general head, latest check-lists are referred to together with bibliographies of algal keys and a guide for the identification of British water plants.
    Schlagwort(e): Biology ; Ecology ; Limnology ; freshwater crustaceans ; freshwater molluscs ; invertebrate zoology ; literature reviews ; aquatic animals
    Repository-Name: AquaDocs
    Materialart: book , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 18
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  • 91
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    An annotated bibliography of aquatic sediment traps and trapping methods (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5279 | 1256 | 2011-09-29 15:11:11 | 5279 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: This annotated bibliography is intended to give as reasonably complete a review of the existing literature as possible, and to offer some practical guidance in the selection and operation of sediment traps in future monitoring programmes.
    Schlagwort(e): Biology ; Ecology ; Limnology ; literature reviews ; particle settling ; collecting devices
    Repository-Name: AquaDocs
    Materialart: book , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 54
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  • 92
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    List of Publications of the Freshwater Biological Association 1929–1978 (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5277 | 1256 | 2011-09-29 15:11:01 | 5277 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: This bibliography covers the literature published by the Freshwater Biological Association between the years 1929-1978.
    Schlagwort(e): Biology ; Ecology ; Limnology ; Freshwater biology ; Bibliographies
    Repository-Name: AquaDocs
    Materialart: book , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 133
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  • 93
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    Petroleum hydrocarbons in fresh waters: a preliminary desk study and bibliography (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5278 | 1256 | 2011-09-29 15:11:09 | 5278 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: A literature survey was carried out into the effects of petroleum hydrocarbons in freshwater, from the toxicity, biodegradability and concentration aspects. It was supplemented by a selective search on hydrocarbons in the marine environment for comparison. The aim was to determine the major inputs of these hydrocarbons, their accumulation, effects and fate in freshwaters. The search was confined to the period 1965-1978. The bibliography contains 390 references, divided by subject.
    Schlagwort(e): Chemistry ; Limnology ; Pollution ; literature reviews ; petroleum ; toxicity ; biodegradation
    Repository-Name: AquaDocs
    Materialart: book , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 52
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  • 94
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    Stress, shredders and streams: using gammarus energetics to assess water quality (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5308 | 1256 | 2011-09-29 15:06:41 | 5308 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: This paper reviews the effectiveness of Gammarus scope for growth (SfG) as an indicator of water quality. In addition, the link between physiological changes and effects at higher levels of biological organisation is addressed. Exposure to a range of toxicants resulted in decreases in Gammarus SfG which were qualitatively and quantitatively correlated with subsequent reductions in growth and reproduction. Reductions in SfG were due principally to a decrease in energy intake (i.e. feeding rate) rather than an increase in energy expenditure. Gammarus pulex is an important shredder in many stream communities and stressed-induced reductions in its feeding activity were correlated with reductions in the processing of leaf litter by a semi-natural stream community. Hence, changes in the physiological energetics of Gammarus provide a general and sensitive indicator of stress which can be linked to effects at higher levels of biological organisation. Under long-term stress and hence prolonged reductions in SfG, animals may adapt by modifying their life-history strategies and producing fewer, larger offspring.
    Schlagwort(e): Biology ; Limnology ; Pollution ; Indicator species ; Rivers ; Water quality ; Water quality control ; Aquatic communities ; Pollution effects ; Pollution indicators ; Animal physiology ; Freshwater crustaceans ; Acclimatization ; Bioassays ; Energy budget ; Environmental assessment ; Biological stress
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 98-110
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  • 95
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    From organism to population: the role of life-history theory (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5305 | 1256 | 2011-09-29 15:07:02 | 5305 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-09
    Beschreibung: The role of life-history theory in population and evolutionary analyses is outlined. In both cases general life histories can be analysed, but simpler life histories need fewer parameters for their description. The simplest case, of semelparous (breed-once-then-die) organisms, needs only three parameters: somatic growth rate, mortality rate and fecundity. This case is analysed in detail. If fecundity is fixed, population growth rate can be calculated direct from mortality rate and somatic growth rate, and isoclines on which population growth rate is constant can be drawn in a ”state space” with axes for mortality rate and somatic growth rate. In this space density-dependence is likely to result in a population trajectory from low density, when mortality rate is low and somatic growth rate is high and the population increases (positive population growth rate) to high density, after which the process reverses to return to low density. Possible effects of pollution on this system are discussed. The state-space approach allows direct population analysis of the twin effects of pollution and density on population growth rate. Evolutionary analysis uses related methods to identify likely evolutionary outcomes when an organism's genetic options are subject to trade-offs. The trade-off considered here is between somatic growth rate and mortality rate. Such a trade-off could arise because of an energy allocation trade-off if resources spent on personal defence (reducing mortality rate) are not available for somatic growth rate. The evolutionary implications of pollution acting on such a trade-off are outlined.
    Schlagwort(e): Biology ; Ecology ; Limnology ; Life history ; Population characteristics ; Population dynamics ; Pollution effects ; Evolution ; Stress (mechanics)
    Repository-Name: AquaDocs
    Materialart: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 63-74
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  • 96
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    The production of freshwater fish for food (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5345 | 1256 | 2011-09-29 15:02:58 | 5345 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-10
    Beschreibung: It has been estimated that in England and Wales fresh water covers some 340 square miles of which about one quarter is inhabited mainly by salmon and trout; in Scotland the lakes cover an area of 340 square miles. The principal object of this publication is to make available in handy form some of the methods, especially those involving the use of manures, by which crops of fish from water can be increased. The cultivation of water which this implies may be compared directly to the cultivation of farm land: the conditions for growth are made as favourable as possible, the seed is sown in the form of young fish, and after one or perhaps two growing seasons the crop is harvested. There are however many waters about the country where marketable fish are already available and can be removed without prejudice to, and indeed to the advantage of, sporting fisheries. In such cases it is necessary only to remove the fish and to rely on the natural processes of reproduction of those which are left to repopulate the water. Farming waters in the true sense is the concern of the greater part of this publication; the removal of crops of otherwise unwanted fish is considered in the last two sections on perch trapping and eel fisheries.
    Schlagwort(e): Biology ; Fisheries ; Limnology ; Freshwater fish ; Fish culture ; Fish ; Freshwater aquaculture ; Pond construction ; Fish ponds ; Food consumption ; Food fish ; UK
    Repository-Name: AquaDocs
    Materialart: book , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 315-322
    Format: 36
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  • 97
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    Concentrations of major ions in the stream water of the River Duddon, England, 1970-1974 [Dataset] (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5349 | 1256 | 2011-05-13 11:55:43 | 5349 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-10
    Beschreibung: This dataset provides raw data of chemical analyses made during studies on seasonal variations of some major ions in the stream water of the River Duddon in Cumbria. Measurements of sodium, calcium, potassium, magnesium and chloride ions and pH were taken at 5 stations in the River Duddon between January 1970 and August 1974.
    Beschreibung: This data was used in the publication: Carrick, T.R. & Sutcliffe, D.W.: Concentrations of Major Ions in Streams on Catchments of the River Duddon (1971-1974) and Windermere (1975-1978), English Lake District. Freshwater Biological Association, Ambleside, UK, 1983 (FBA Occasional Publications 22)
    Schlagwort(e): Chemistry ; Limnology ; Calcium ; chlorides ; fresh water ; ions ; magnesium ; potassium ; seasonal variations ; sodium ; water analysis ; dataset
    Repository-Name: AquaDocs
    Materialart: other
    Format: text/html
    Format: application/vnd.ms-excel
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  • 98
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    The coarse fishes of Britain (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5348 | 1256 | 2011-09-29 15:03:15 | 5348 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-10
    Beschreibung: The need for research upon the coarse fishes of Britain, questions of the breeding and rearing of large numbers of young fish, more especially roach, was established back in 1937. The investigation which was begun in 1939 at Barrington in Cambridgeshire was therefore, with the full approval of the National Federation of Anglers, devoted to the general life histories of as many species as possible. Now, five years later, the results of the investigation are presented in the hope that they will provide a basis of knowledge upon which sound policies can be devised for the improvement of fish stocks and the increase of sport. In this report the scientific data, which will be published in full elsewhere, have been condensed as much as possible, but nothing of importance has been omitted and nothing has been concealed.
    Schlagwort(e): Biology ; Fisheries ; Limnology ; Coarse fish ; Fishery surveys ; Fish physiology ; Food composition ; Competition ; Angling ; England
    Repository-Name: AquaDocs
    Materialart: book
    Format: application/pdf
    Format: application/pdf
    Format: 40
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  • 99
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    Freshwater biology and water supply in Britain (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5347 | 1256 | 2011-09-29 15:03:13 | 5347 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-10
    Beschreibung: This paper is designed to give a general account of freshwater biology as it bears on waterworks practice. Most water that is used for consumption will commonly go through a storage reservoir. Here special reference is given to the biological relations in standing waters, the biological control of water supplies, methods of plankton estimation, the biology of slow sand filtration and the use of algicides.
    Schlagwort(e): Biology ; Limnology ; Management ; Water reservoirs ; Water quality ; Water treatment ; Inland water environment ; Lacustrine sedimentation ; Algicides ; Water filtration ; Plankton
    Repository-Name: AquaDocs
    Materialart: book
    Format: application/pdf
    Format: application/pdf
    Format: 91
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  • 100
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    Analysis of stream waters in the catchment of Lake Windermere (1975-1978), England [Dataset] (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5351 | 1256 | 2011-05-13 11:55:21 | 5351 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-10
    Beschreibung: This dataset provides raw data of chemical analyses made during studies on seasonal variations of some major ions in the stream water of the catchment of Lake Windermere in Cumbria. Measurements of sodium, calcium, potassium, magnesium, chloride ions and pH were taken at 37 stations in the catchment between 1975 and 1978.
    Beschreibung: This data was used in the publication: Carrick, T.R. & Sutcliffe, D.W.: Concentrations of major ions in streams on catchments of the River Duddon (1971-1974) and Windermere (1975-1978), English Lake District. Freshwater Biological Association, Ambleside, UK, 1983 (FBA Occasional Publications 22)
    Schlagwort(e): Chemistry ; Limnology ; Calcium ; chlorides ; fresh water ; ions ; magnesium ; potassium ; seasonal variations ; sodium ; water analysis ; England ; Lake Windermere ; dataset
    Repository-Name: AquaDocs
    Materialart: other
    Format: text/html
    Format: application/vnd.ms-excel
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