I figure if you can find them on your sounder it would work well. You would want to slow jig the bottom though, no more than a metre up I reckon. And if you are going to spend the time pottering around looking at the sounder you may as well be trolling at the same time. I have never fished the Otago Harbour though so I maybe completly wrong
i cant see how it wouldnt be very productive with many coastal locations also, but im not sure how hard it would be to actual find the fish, and if the number of fish would be sufficent enough to work.
Im interested in giving it a go in the harbour this summer/autum, i wont have access to a sounder though.
I would think without a sounder your best bet would be to target the areas where other boats seem to be frequenting as there is a good chance they will be seeing fish on their sounders if they are sticking to one spot.
There is some bloke in Dunedin selling those portable sounders on TradeMe for uner $70.
Cheap sounder, exactly like the one I bought of EBay recently for half that and they can be used off the wharf too.
Check this listing: http://www.trademe.co.nz/sports/fishing … 333478.htm
anyone useing downrigger and cd-7-9 rapala? when used in conjunction with a good sounder and some thought and effort, no doubt you will clean up…kind of wish i lived there to trial it..also, dont worry too much about real solid fish echoes, look more for structure that will hold/condense baitfish…cheers