Parish, Tim and Bas, Jon and Sparks, Tim
The contrasting invertebrate fauna of freshwater habitats in the Swavesey fens of East Anglia.
Freshwater Forum, 5(3),
During July and August 1988, 21 ponds and 33 ditch sites were sampled at Swavesey fens in East Anglia. Water from each site was collected and analysed at monthly intervals in the year preceding faunal sampling. Temperature and oxygen were measured on site. The "quality" of the faunal community was assessed by three approaches: a modification of the BMWP scoring system (Biological Monitoring Working Party); faunal richness was calculated as the number of faunal "groups" at each site; and by using Simpson's index of diversity. Statistical analysis was carried out to explore the relationships between sites, environmental variables and faunal diversity. The survey clearly showed the detrimental effects of elevated nitrate and phosphate from agricultural sources and the localised impacts of treated sewage effluent on invertebrates in ditches.
||The contrasting invertebrate fauna of freshwater habitats in the Swavesey fens of East Anglia
|Journal or Publication Title:
||Freshwater Biological Association
||aquatic insects; community composition; marshes; ponds; species diversity; stagnant water; Asellidae, England; Cambridge
Hardy B Schwamm
||25 Nov 2010 12:21
||29 Sep 2011 16:13
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