River Lea near Edmonton.

I spent some time walking the waterways out of London or on the fringes, especially in winter and was particularly interested in the deep waters around industry and the way trees, birds and fish responded. There is something dark about these places even on the brightest of days. This photograph is included in my series 'The Current'.It makes me think of the pike in the river along this stretch and I was thinking then of Ted Hughes's poem Pike.PikeTed HughesPike, three inches long, perfectPike in all parts, green tigering the gold.Killers from the egg: the malevolent aged grin.They dance on the surface among the flies.Or move, stunned by their own grandeur,Over a bed of emerald, silhouetteOf submarine delicacy and horror.A hundred feet long in their world.In ponds, under the heat-struck lily pads-Gloom of their stillness:Logged on last year’s black leaves, watching upwards.Or hung in an amber cavern of weedsThe jaws’ hooked clamp and fangsNot to be changed at this date:A life subdued to its instrument;The gills kneading quietly, and the pectorals.Three we kept behind glass,Jungled in weed: three inches, four,And four and a half: fed fry to them-Suddenly there were two. Finally oneWith a sag belly and the grin it was born with.And indeed they spare nobody.Two, six pounds each, over two feet longHigh and dry and dead in the willow-herb-One jammed past its gills down the other’s gullet:The outside eye stared: as a vice locks-The same iron in this eyeThough its film shrank in death.A pond I fished, fifty yards across,Whose lilies and muscular tenchHad outlasted every visible stoneOf the monastery that planted them-Stilled legendary depth:It was as deep as England. It heldPike too immense to stir, so immense and oldThat past nightfall I dared not castBut silently cast and fishedWith the hair frozen on my headFor what might move, for what eye might move.The still splashes on the dark pond,Owls hushing the floating woodsFrail on my ear against the dreamDarkness beneath night’s darkness had freed,That rose slowly toward me, watching.