Gooseberry bushes looking yellow

All except one bush has gone like this.  It is only their second year in this bed, which had rasps in previously. 
The one bush that hasn't gone yellow in the middle is the only red berried variety.
Is it normal for them to start dying back after they have fruited? They have fruit on but not much as it is only their first year of fruiting.

You might have something there. 
I haven't fed them except for the odd foliar feed, because they only went in last year and I put stuff in then.  But it could be that the previous rasps might have depleted the soil more that I thought.

I wouldn't have thought it would be waterlogging now, but there was an apple tree close by (where the pots are in the photo)which rotted away at the roots after that horrible year of 2012. (Also close by, the only young apple tree that was planted direct into the ground isn't doing as well as the potted ones.)

I will give them a good feed now, and when they die back for the winter see if I can check for drainage. I wonder if there is something going wrong on that whole corner of the plot.

The worst affected ones are near the shaded end so I don't think it is that.  It looks to me like a deficiency of some kind. The soil is quite damp, but not squelchy.
I've picked the fruit now all except the unaffected one, and I think I might pull them out later,(I don't need 6 gooseberry bushes, 3 will do nicely)and re-vamp that bed.

I wondered whether it might be gooseberry / currant leaf spot, but the pictures of that on the RHS don't show the leaf yellowing, so it might not be that after all.

http://www.rhs.org.uk/Advice/Profile?PID=741

No worries New shoot, thanks for the input, its a puzzle that needs working out. 
As I remember I hoiked out the rasps because they were poor flavoured and hadn't done well the year before.  Maybe that is symptomatic of that whole corner. I think I only dug in organic matter where the gooseberry bushes were going not over the whole bed.

There are 2 mature apple trees (dwarfing stock)which were there when I took over, 1 apple which went in in winter 2012 and has struggled, and 2 apples which I planted in pots because even then I was having doubts about that area of the plot.
I hadn't realised how poorly the mature trees were performing until I had the trees in pots to compare with.  They look lovely and healthy with blossom, clean green leaves and even would've had quite a few apples on in their first year, if I had let them.

The more I think about the more I think I should clear that whole corner, dig it over, get some soil conditioner and manure and give it a good going over. I might even take out the mature trees if necessary.