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  • Freshwater fish  (29)
  • Chemistry  (27)
  • Freshwater ecology  (18)
  • Engineering
  • Ambleside, UK  (64)
  • 1
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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
    Publication Date: 2021-07-10
    Description: 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.
    Keywords: Biology ; Fisheries ; Limnology ; Freshwater fish ; Fish culture ; Fish ; Freshwater aquaculture ; Pond construction ; Fish ponds ; Food consumption ; Food fish ; UK
    Repository Name: AquaDocs
    Type: book , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 315-322
    Format: 36
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  • 2
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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
    Publication Date: 2021-07-10
    Description: 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.
    Description: 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)
    Keywords: Chemistry ; Limnology ; Calcium ; chlorides ; fresh water ; ions ; magnesium ; potassium ; seasonal variations ; sodium ; water analysis ; dataset
    Repository Name: AquaDocs
    Type: other
    Format: text/html
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  • 3
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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
    Publication Date: 2021-07-10
    Description: 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.
    Description: 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)
    Keywords: Chemistry ; Limnology ; Calcium ; chlorides ; fresh water ; ions ; magnesium ; potassium ; seasonal variations ; sodium ; water analysis ; England ; Lake Windermere ; dataset
    Repository Name: AquaDocs
    Type: other
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  • 4
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    On statistical treatment of the results of parallel trails with special reference to fishery research (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5346 | 1256 | 2011-09-29 15:03:10 | 5346 | Freshwater Biological Association
    Details
    Publication Date: 2021-07-10
    Description: Parallel trials form a most important part of the technique of scientific experimentation. Such trials may be divided into two; categories. In the first the results are comparable measurements of one kind or another. In the second the data consist of records of the number of times a certain 'event' has occurred in the two sets of trials compared. Only trials of the second category are dealt with here. In this paper all the reliable methods of testing for significance the results of parallel trials of a certain type with special reference to fishery research are described fully. Some sections relate to exact, others to approximate tests. The only advantage in the use of the latter lies in the fact that they are often the more expeditious. Apart from this it is always preferable to use exact methods.
    Keywords: Biology ; Fisheries ; Limnology ; Freshwater fish ; Methodology ; Mathematical analysis ; Inland fisheries ; Equations ; Statistical analysis
    Repository Name: AquaDocs
    Type: book
    Format: application/pdf
    Format: application/pdf
    Format: 55
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  • 5
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    Concentrations of major ions in 182 tarns in the English Lake District (1953-1978) [Dataset] (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5354 | 1256 | 2011-09-16 12:01:28 | 5354 | Freshwater Biological Association
    Details
    Publication Date: 2021-07-10
    Description: This dataset provides raw data of chemical analyses made during studies on seasonal variations of 182 tarns in the English Lake District, Cumbria. Measurements of sodium, calcium, potassium, magnesium, pH, chloride ions, alkalinity, sulphite, strong acids and nitrate were taken between 1953 and 1978.
    Description: This data was used in the publication: Carrick, T.R. & Sutcliffe, D.W.: Concentrations of major ions in lakes and tarns on the English Lake District (1953-1978). Freshwater Biological Association, Ambleside, UK, 1982 (FBA Occasional Publications 16)
    Keywords: Chemistry ; Limnology ; Calcium ; chlorides ; fresh water ; ions ; magnesium ; potassium ; seasonal variations ; sodium ; water analysis ; alkalinity ; England ; Lake District ; dataset
    Repository Name: AquaDocs
    Type: other
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  • 6
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    Analyses of treated sewage effluent from Grasmere Treatment Unit (1974-1976), England [Dataset] (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5352 | 1256 | 2012-07-04 19:32:47 | 5352 | Freshwater Biological Association
    Details
    Publication Date: 2021-07-10
    Description: This dataset provides raw data of chemical analyses made during studies on seasonal variations of treated sewage effluent from Grasmere Treatment Unit in Cumbria. Measurements of sodium, calcium, potassium, magnesium and chloride ions were taken between 1974 and 1976.
    Description: 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)
    Keywords: Chemistry ; Limnology ; Calcium ; chlorides ; fresh water ; ions ; magnesium ; potassium ; seasonal variations ; sodium ; water analysis ; England ; Grasmere ; dataset
    Repository Name: AquaDocs
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  • 7
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    Concentrations of major ions in the stream water of the upper basin of the River Duddon, England, 1972-1974 [Dataset] (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5350 | 1256 | 2011-05-13 11:56:03 | 5350 | Freshwater Biological Association
    Details
    Publication Date: 2021-07-10
    Description: This dataset provides raw data of chemical analyses made during studies on seasonal variations of some major ions in the stream water of the upper basin of the River Duddon in Cumbria. Measurements of sodium, calcium, potassium, magnesium and chloride ions and pH were taken at 26 stations in the River Duddon basin between 1972 and 1974.
    Description: 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)
    Keywords: Chemistry ; Limnology ; Calcium ; chlorides ; fresh water ; ions ; magnesium ; potassium ; seasonal variations ; sodium ; water analysis ; England ; River Duddon ; dataset
    Repository Name: AquaDocs
    Type: other
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  • 8
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    Major ions in 25 frequently sampled tarns in the English Lake District (1954-56, 1974-1976) [Dataset] (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5353 | 1256 | 2012-07-04 19:33:33 | 5353 | Freshwater Biological Association
    Details
    Publication Date: 2021-07-10
    Description: This dataset provides raw data of chemical analyses made during studies on seasonal variations of 25 frequently sampled tarns in Cumbria. Measurements of sodium, calcium, potassium, magnesium, pH, chloride ions, alkalinity, sulphite, strong acids and nitrate were taken between 1954 and 1956 and between 1974-1976.
    Description: 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)
    Keywords: Chemistry ; Limnology ; Calcium ; chlorides ; fresh water ; ions ; magnesium ; potassium ; seasonal variations ; sodium ; water analysis ; alkalinity ; England ; Lake District ; dataset
    Repository Name: AquaDocs
    Type: other
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  • 9
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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
    Publication Date: 2021-07-09
    Description: 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.
    Keywords: Chemistry ; Ecology ; Limnology ; Data ; Data processing ; Data collections ; Chemical compounds ; Toxicity ; Bioaccumulation ; Biodegradation ; Metabolism
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 8
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  • 10
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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
    Publication Date: 2021-07-09
    Description: 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.
    Keywords: Chemistry ; Limnology ; Pollution ; Eutrophication ; Freshwater lakes ; Limnological surveys ; Phosphorus ; Phytoplankton ; Primary production ; Sediment analysis ; Water quality ; England ; Esthwaite Water
    Repository Name: AquaDocs
    Type: book_section , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 119-131
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