Reed Hall Pond
description
Transcript of Reed Hall Pond
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Reed Hall Pond A bioblitz pond dip
(The contributor of this photos is Derek Harper)
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Basic facts• 6 sites, 3 hours of sampling• 23 different animals
– 1 fish– 1 species freshwater snail– 1 mayfly species– 2 species damselflies– 3 species cased caddisflies– 2 species beetles– 2 different water bugs– 1 species fly– 2 species crustacean– 1 species water mite– 3 different oligochaete worms– 2 different leeches
• 6 different aquatic/emergent plants
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The site
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Sample site
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What we found
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Basic stats
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Canopy shading
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What’s going on?
site 1 site 2 site 3 site 4 site 5 site 60
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Impact of fountain
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Number of taxa and Diversity
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1 = 1 taxon, 2 individuals
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= Diversity index
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Reasons?
Shading = reduced light = less phytoplankton production?Shading = leaves = organic input, too much?Shading = hiding places for Koi carp = heavier predation of invertebrates?Poorer aeration (unlike other end with a fountain)?
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As a result…
• Foliage trimmed back, larger plants removed• Leaf litter dredged• Removed choking pondweed• Whole pond aerated• Koi carp netted off• More habitats for invertebrates created• Second fountain running