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This colour film is the second in the series of two linked programmes relating to the "Lakes and Rivers" course work. It is a case study of a typical system in the English Lake District.... Members of the Freshwater Biological Association demonstrate the Mackereth corer in action. Dr. F.J. Mackereth describes what the sediments in the core can tell us about the geological and biological history of Windermere. This is followed by an aerial survey of Troutbeck from headwaters to mouth. Along the way the beck is examined as a habitat for fish; electric fishing is demonstrated. We then look at fish life in Windermere; seine netting and gill nettling is shown. From an examination of Troutbeck we find that its not a "good fit" of our concept of an ideal stream. The anomalies are investigated and explanations are looked for. programme ends with a comparison of Kentmere with Windermere. Taking part are Dr. M.E. Varley and Dr. D.E.Jackson. Narration is Dr. R.C.L. Wilson.
Metadata describing this Open University video programme
Item code: S2-3; 04
First transmission date: 12-08-1972
Published: 1972
Rights Statement:
Restrictions on use:
Duration: 00:24:37
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Producer: Penny Crompton
Contributors: D Jackson; F Mackereth; Peggy Varley; Chris Wilson
Publisher: BBC Open University
Keyword(s): Aerial survey; Electric fishing; Freshwater Biological Association; Geological and biological history; Kentmere lake; Mackereth corer; Netting; Stream anomalies
Footage description: Aerial shot of Windermere and surrounds. Commentary by Chris Wilson explains how Windermere was formed. Film sequence shows a method for getting silt samples from lake bottom at Windermere, Wilson explains the method and apparatus used. Shots of sediment samples being removed from the core of the apparatus. F.J.H. Mackereth examines the samples of sediment and discusses the geological history of Windermere from its evidence. Aerial shot of the outlet from Windermere. Mackereth continues with his examination of the sediment sample. Shots of a topographical model of Windermere and Troutbeck. Places where samples of animal life in the stream were taken are pointed out on the model. Aerial shots of the area. Shots of biological samples being taken. Electric angling method is used to catch fish. Commentary explains how this is done. Shots of several brown trout caught by this method. Shots of the stream where the trout were caught. Commentary describes the stream bed. Shots of invertebrate life in the stream on which trout feed. Shots of the floating net with which these invertebrates are caught for examination. Shots of Troutbeck further downstream. Shots of Peggy Varley "kick sampling" invertebrates in the stream. Shots of the invertebrates caught by method. Shots of young trout also caught at this point. Shots of the stream. Commentary explains the trout's ecology and factors which affect trout population in a stream. Aerial shots of Troutbeck still further downstream. Aerial shots of Windermere. Commentary by Chris Wilson explains the variety of habitats for different species of fish which the lake offers. Shots of members of the Freshwater Biological Association (F.B.A.) hauling in a fishing net towards the shore. Shots of the fish caught in this way. Shot of a pike. Commentary discusses the pike's ecology. Shot of being caught for examination. Records of size and sex are kept. Shots of spawning being induced and of fertilized eggs being hatched in F.B.A. Shots of the topographical model of Windermere and Troutbeck. Aerial shots of the stream meanders at the headwaters. Commentary by Wilson explains that the meanders should not be there and that Troutbeck is not a good fit for the concept of an ideal stream. Shots of the stream. Commentary by Wilson explains the anomalies of Troutbeck. Aerial shots of the river Kent and Kentmere. Commentary gives their geological history. Shots of remains of a medieval boat (c. 1300.A.D.) from Kentmere. Wilson's commentary explains that Windermere may well look like Kentmere in 10,000 years.
Master spool number: 6HT/70757
Production number: 00521_2149
Videofinder number: 1652
Available to public: no