You only get a sense of its movement at the locks where the spill makes the flat fenlands erupt with depth
and the gathering garbage bumps against the wall, a game of buoyancy and Archimedes, a contusion of products.
A solitary rower hacks her way through mute swans who work the chevron and just slip past the slicing oars,
as if the obligation is all theirs—we might not want to read too much human in their motives, but they sure as hell
have to think human to keep clear of ours. Where no canal boats can moor by order of the river conservators, anglers
stick hooks through red grubs writhing in pollen. There’s plenty of information on fish types (shady, reliable, conservative,
radical?) in the Cam, but nothing extensive about the body of the whole, the confluence of species, the integrated network
of life. Okay: chub, perch, tench, chub, bream, skimmer, eels… and woodpeckers, mallards, moorhens, blackbirds, thrushes…
dragonflies stuck above the surface. But revelation for me was a pair of tiger-striped perch chasing a school of tiny fish
who would break the surface in their explosive release of escape chemicals, the stimulation of evasion. It had
nothing to do with me, and nothing to do with the anglers, silent, brooding, chewing the ends of their rollies.
The green waters nudge the reedbeds, and a swan strikes down with the full length of its body, a buoy or something
capsized suddenly rights itself. Then the clapping of wings on the surface, the popping of over-inflated balloons,
to run across water, wings locked into pre-take-off, that ‘clamour’, the mated pair driving off the whitening
cygnets, to pin the neck then enwrap their progeny with a definitive hiss. Well-meaning? Meaning business?