22nd April 2024 - the Abington NatureWatch Rivercare team met at the river by the ford this week for the first river sampling session of the season. Having captured a 'kick-sample' of the wildlife in the net, and carefully transferred it to a bucket, the task was to count and identify the creatures in the river. This data is then sent to Riverfly for monitoring and analysis.
A good variety of creatures were found, including three fish - two Minnow, nicely coloured ready for the breeding season, and a Stone Loach. Interestingly a Water Hog Louse was also found, something the group had not seen recently.
Minnow - a male starting to show some red colouration
on the fins in preparation for breeding
Minnow
Stone Loach - a bottom-dwelling fish
Stone Loach - note the sensory barbels around the mouth
Mayfly larva - much bigger than most larvae, and very flexible when moving
Mayfly larvae
Caseless Caddis fly larva -
note just two projections at the back of the abdomen
A Caseless Caddis fly larva, showing the
gills underneath the body
A Cased Caddis-fly larva, which makes itself a protective
'shell' of small pieces of gravel
Olive, the larvae of an Upwing Fly - note three projections at the rear.
Also note, below, a larva of a species of fly
Olives
Water Hog Louse
Water Hog Louse
Gammarus - a freshwater shrimp
Sampling point, on the Little Abington side of the ford
Getting set up, ready for the count
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