Marine Institute Open Access Repository >
Marine Institute Community of Research Publications >
Irish Fisheries Investigations >
Irish Fisheries Investigations Series A - Freshwater >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10793/397

Title: The Effects of Drainage on the Trimblestown River
Authors: McCarthy, D. T.
Keywords: Trimblestown River
Drainage
Issue Date: 1977
Publisher: Department of Agriculture and Fisheries [Fisheries Division]
Citation: McCarthy, D.T., "The Effects of Drainage on the Trimblestown River", Department of Agriculture and Fisheries [Fisheries Division]
Series/Report no.: Irish Fisheries Investigations Series A;16
Abstract: The effects of arterial drainage on the macro-invertebrates and flora of a salmon nursery stream are described. A section of the Trimblestown River, Co. Meath was sampled from 1968 to 1974. In drainage operations of this kind the substratum where insect life predominates is removed, also fish and salmonid ova and fry life is affected by mechanical disturbance. A Surber stream-bottom sampler covering an area of 1 square ft (O.093m2) was used to take 107 samples. Wet and dry weights of the fauna were determined. A survey of the aquatic flora, pre- and post-drainage is also described. The fauna and flora were seriously depleted after drainage but recovered rapidly both in numbers and biomass a year after drainage was completed. There was an increase in the growth of emergent vegetation after drainage. Filamentous algae and Chara sp. recolonised the bed of the river replacing two submerged species (Fontinalis sp and Rorippa nasturtium) which had been abundant prior to drainage.
URI: http://hdl.handle.net/10793/397
ISSN: 0578-7327
Appears in Collections:Irish Fisheries Investigations Series A - Freshwater

Files in This Item:

File Description SizeFormat
No 16 1977 The effects of drainage on the Trimblestown river 1 Benthic invertebrates and fauna.pdf1.25 MBAdobe PDFView/Open
Use License

Items in the Marine Institute Open Access Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! Marine Institute Copyright © 2011  - Feedback