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  • Freshwater fish  (2)
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    Some observations on washout of brown trout (Salmo trutta L.) eggs in Teesdale streams (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5089 | 1256 | 2011-09-29 15:25:29 | 5089 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-08
    Beschreibung: Brown trout (Salmo trutta) in Teesdale lay their eggs in the streambed gravels in the Autumn, here the eggs slowly develop to emerge as young fry in the Spring. Whilst the eggs are in the gravel they are vulnerable to displacement by high water velocities. Eggs removed in this way are not thought to remain viable since they are very susceptible to death through physical shock - especially in the earlier stages of development. Streams in Teesdale are known to be amongst the most flashy in England and thus are good sites in which to study egg washout. Three field sites were used for the study of egg washout in Teesdale - Great Eggleshope, Thorsgill and Carl becks. This report describes preliminary studies of a varied nature into this subject from which an attempt is made to assess the importance of egg washout to the survival of brown trout in Teesdale.
    Schlagwort(e): Biology ; Ecology ; Limnology ; Freshwater ecology ; Rivers ; Freshwater fish ; Fish eggs ; Survival ; Fry ; Population density ; Spawning ; England ; Teesdale
    Repository-Name: AquaDocs
    Materialart: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 20
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 2
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    Survival of intragravel stages of brown trout (Salmo trutta L.) in Teesdale (2021)
    Freshwater Biological Association | Ambleside, UK
    In:  http://aquaticcommons.org/id/eprint/5088 | 1256 | 2011-09-29 15:26:16 | 5088 | Freshwater Biological Association
    Details
    Publikationsdatum: 2021-07-08
    Beschreibung: A study has been undertaken on several streams in Teesdale (UK)in order to examine survival rates of intragravel stages of brown trout and the factors influencing survival. Although all the becks contained brown trout spawning areas, some were utilised by more spawning trout than others. The best spawning sites as judged by this criterion were Thorsgill and Great Eggleshope becks where the research effort was therefore concentrated. There were two different spawning areas in Eggleshope, namely Great Eggleshope beck itself and Great Eggleshope spring fed tributary (Esft), data from these two areas are analysed separately in most parts of the text.
    Schlagwort(e): Biology ; Ecology ; Limnology ; Freshwater ecology ; Rivers ; Freshwater fish ; Survival ; Fish eggs ; England ; Teesdale
    Repository-Name: AquaDocs
    Materialart: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 37
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
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