Targeting Big Tuna

[Fishton]

first pic a single fish and second a whole lot, range > depth

Tuna @ 3m?

[Fishton]

first pic a single fish and second a whole lot, range > depth

Notice how these fish fade into the bottom echo, and this is only at a depth of just more than 30ft.  Imagine what it will become like out at sea in 100+ft and a slight chop on the water!



SideScan Golden Rule:-

Shallow Calm Waters - Maximum Range
Deep Offshore Conditions - Less is More (max = Current depth)

[Capt. Hook]

Question:
If out in the deep and trolling where you mostly trying to raise fish from the upper 3rd of the water column, do I correctly understand that you would then set the side scan to say 1/3 of the depth for better results.

[fedu]

OK, now I think I understood, thanks Fishton.

Let me first state why I was so sceptic about the range issue (sorry no pics):

I troll saltwater for big Cubera Snappers (they can go from 3Kg to 30K in size) water from 3 to 10m deep, I allways have the sidescan range greater than depth and on numerous times I located the Cuberas away from the structure this way, so for me it was very strange Fishton statement.

Now I think I understood what he is trying to say (please correct me if I am wrong), on saltwater and bigger depths let's say +25 meters deep, and if you are trying to locate fish and not structure (sometimes you want to locate structure because you know the chances of geting fish there are very high) you should set your sidescan range at less than the area depth to try find those weaker fish signals that in shallower water can be seen but not on bigger depths.


Is this it ?

[Fishton]

Question: If out in the deep and trolling where you mostly trying to raise fish from the upper 3rd of the water column, do I correctly understand that you would then set the side scan to say 1/3 of the depth for better results.

NO

[Fishton]

OK, now I think I understood, thanks Fishton.

Let me first state why I was so sceptic about the range issue (sorry no pics):

I troll saltwater for big Cubera Snappers (they can go from 3Kg to 30K in size) water from 3 to 10m deep, I allways have the sidescan range greater than depth and on numerous times I located the Cuberas away from the structure this way, so for me it was very strange Fishton statement.  100%

Now I think I understood what he is trying to say (please correct me if I am wrong), on saltwater and bigger depths let's say +25 meters deep, and if you are trying to locate fish and not structure (sometimes you want to locate structure because you know the chances of geting fish there are very high) you should set your sidescan range at less than the area depth to try find those weaker fish signals that in shallower water can be seen but not on bigger depths. Perfect!


Is this it ?

[Fishton]

...........................................

[Fishton]

Answer -

a = 3
b = 2
c = 1
d = 4 & 6
e = 5

[Fishton]

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[Fishton]

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[fedu]

Very good info Fishton.

Credit going your way.

Like you had -1 now you have 0

[Fishton]

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[Fishton]

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[Capt. Hook]

Finally I understand. 

[benniejordaan]

Finally I understand. 

Good, so when you installing it?

[Capt. Hook]

Good, so when you installing it? I'm running a special right now!

This is a nice to have, but I do not think it would make a huge difference to the fishing here in Durban and it is a big investment which personally I do not think will warrent the cost, for that kind of money there are other things I would get 1st, but it all takes time.
I also think that the technology is new and will improve substantially.

[tackle whore]

HA HA Fernando now try chasing down a school of yellowfin thats 100m to your port or starboard , thats fun mate . you will see how effective this system works once you get down here for the yellows if they ever arrive .

[benniejordaan]

...a nice Furuno on my boat to read deeper.

Cheeky bastid! Fork out the cash and get a 1kW ducer. Makes no diffs what unit you have.

[Capt. Hook]

Cheeky bastid! Fork out the cash and get a 1kW ducer. Makes no diffs what unit you have. C'mon, special price for you!

Yip, I will need that 1Kw soon bud along with a chart.
I am struggling with the transducer I have now, on my old unit it worked much better but with the HDS it is difficult.

[benniejordaan]

As you were, please continue...