Reed Hall Pond A bioblitz pond dip (The contributor of this photos is Derek Harper )

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Presentation transcript:

Reed Hall Pond A bioblitz pond dip (The contributor of this photos is Derek Harper )

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

The site Sample site

What we found

Basic stats

Canopy shading

Whats going on? Impact of fountain

Number of taxa and Diversity 3.4X 3X 3.6X 4X 2,424 X 1 = 1 taxon, 2 individuals = Diversity index

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)?

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