Visit May 14, 2:30 p.m. Sunny, cloudy, 15°C, 8 mph NW wind.

Recent heavy rain previous week, damp underfoot.

4 hornbeam saplings planted.

Butterfly transect carried out for Colin Conroy.

Samples collected

  1. NOT [Between bank & centre weeds in main pond (open water) ]
  2. Adjacent to weir in main pond within new typha angustifolia
  3. Downstream from pond, above first "weir"
  4. NOT [Hedge pond = now a patch of mud with no water]
  5. NOT [Pond at northern extreme of site]

 

1

2

3

4

5

PH

 

8.1

8.0

 

 

Nitrates

 

 

 

 

 

Nitrites

 

 

 

 

 

Clarity

 

Clear

murky

 

 

Mayfly

 

 

 

 

 

Shrimp

 

Yes

 

 

 

Water louse

 

Yes

 

 

 

Blood worm

 

Yes, & pupa

Yes

 

 

Gnat/mosquito

 

 

 

 

 

Rat-tailed maggot

 

 

 

 

 

 

 

 

 

 

 

Fe

 

 

 

 

 

Dissolved Oxygen mg/l

 

7.5

 

 

 

 

 

Cyclops m/f

Cyclops m/f

 

 

 

 

Water mites

 

 

 

 

 

Daphnia

Daphnia

 

 

 

 

Green Hydra chlorohydra

 

 

 

 

 

 Midge larva

  

 

 

 

 

Brown Hydra eating worm

 Brown hydra

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Water quality

 

good

 

dry