Rubble Ground On the Sounder

[Girella]

I would like some help on what rubble ground looks like on
your average sounder.

Any description or pics would be a great help.

Thanks
PK

[Just_chips]

Have you had a read through the sounder reading section at the top of the "Electronics" page? Your answer could be there. I would imagine that you would be looking for a thin grayline for the bottom, indicating less reflection as opposed to seeing a thicker grayline which indicates sand which absorbs more of the sonar beams.

Cheers Kev

[trout3030]

I thought that sand absorbs the signal and less is reflected therefore a thin line was sandy bottom. Thicker greyline is a good reflection from reef or rock?

[CHRIS_aka_GWH]

I would imagine that you would be looking for a thin grayline for the bottom, indicating less reflection as opposed to seeing a thicker grayline which indicates sand which absorbs more of the sonar beams.

Cheers Kev

I agree with stuie & half of kev

i think kevs fingers didn't say what his brain was thinking in the second part of his post - he knows what grayline is.

In Lowrance gear the thicker the gray line the harder the perceived bottom in response to the sensitivity settings *** important point***

Grayline detects describes differences in signal strength - the accurate use of it requires you to know your equipment. eg. A sand bottom can give a strong signal return in shallow water with the sensitivity cranked up

chris

[Girella]

Thanks fellas. I'm sorry though, I should have been more specific.

I'm really after what the subtle differences are between a normal "hard" bottom and the rubble ground that the sp munchin snapper are so fond of.

Cheers
PK

[Just_chips]

Yep what you said Thin, thick, charter boat? what charter boat? Oops.

I don't know where to find those ripper SP munchin rubble ground snapper but if you go through reports and have a look at the woody point reefs post there is some good info on there and also on foggy's report re: woody point brutes"

Cheers Kev

[Sportfish_5]

PK - probably the best local post I have ever seen was on the WA forum ---->>>>

http://www.westernangler.com.au/foru..._1/key_/tm.htm

Some really good info there guys and good pics to give an insight to interpreting your sounder screen - enjoy if you have not seen it before.


Cheers

Greg

[BenDover]

hi pk. I was making big mistakes aswell when i first starting using a sounder. If you are looking for good bottom readings the key is to keep it on bottom zoom and auto depth. So it narrows in on the bottom and i have mine on stucture id, rather than inverse etc... (check your settings and read up what the shades/colours mean) If your looking for snapper ground depending where you are fishing eg, goldcoast where there isnt as much structure as down south. look not so much for the rough top of the bottom as it is mostly dull rock, but the roughness under the surface of the bottom and the defining black that means its hard (the thicker the better). usually drop off and pinicals means its rock anyways most of the time.
cheers

[BenDover]

OH! and the rubble ground you speak of and snapper are usually in the area's around the solid rock bottoms where they meet sand, mud etc... Or in the gully's in between. For some strange reason they choose to swim around the edges of reefs and not on them. They use them like pathways.

[waldo35]

gee whiz advice of professional fishing gear for 'recreational fishermen' one of the biggest increases in professional effort occurred in the mid 80s with the advent of gps and plotters now a 'recreational fisher can buy the same professional equipment for 500 bucks withpout any adjustment to actually recreational effort. these increases in technology are legislatively required to be accounted for in a decrease of fishing effort. where did all the fish go ask urself.

[shaman]

gee whiz advice of professional fishing gear for 'recreational fishermen' one of the biggest increases in professional effort occurred in the mid 80s with the advent of gps and plotters now a 'recreational fisher can buy the same professional equipment for 500 bucks withpout any adjustment to actually recreational effort. these increases in technology are legislatively required to be accounted for in a decrease of fishing effort. where did all the fish go ask urself.

Here we go again
What do you want us to do,hit em on the head with a rock? or is that to hi-tech for ya? I'm blaming the dude who invented the wheel it's all his fault

[waldo35]

mmmmmmmmmmmmmmmmmmm 11 million effort days according to a gov survey in 97 resulting in the harvest by recreational fishermen of [ using chrisweb stats multiplied by ave. species weight according to the aust seafood hand book] 66 tonne of bream 134 tone of tailor 92 tonne of catfish 25 tonne of mullet mmmmmmmmm wots that equal for just 4 species of recreationally targetted fish 317 tonnes of fish................................. and u dont feel the need to address effort creep!

[Fishinmishin]

GREENIE ALERT ....GREENIE ALERT .
I think your confused mate....back you go now little lost one.......LINK TO HOME

.......and with ten posts all in one day and all full of the same crap, mabey you need to buy a bigger soapbox to scream your nonsense from .
Cheers, Jay

[waldo35]

nah fishwoteva not a greenie but i do think that the recreational sector need to address effort creep and sustaianabilty issues . 134 tonne of tailor taken recreationally in 97 go look up a dpi web site and see wot was taken professionally ull be very shocked
under 10 tonne go look it up.

[Fishinmishin]

You are discussing a true issue and something I don't really search a lot of info on and know even less about, but why the post in a topic about sounder signals ?.
Don't forget how much money is injected into the industry and economy by the recs compared to the pros and consider that tailor is one of the most heavily fished rec species and not the most targetted species by pros.
Overfishing is worth disussing but hijacking posts is not the way to do it.


PS...the pic below was taken on my 1st day camping on North Straddie and was done 3 times a day, every day I was there. At least they released all the undersize to float away upside down when they got to them. The net was about 4 times as long as what is shown in the photo (pleanty of catfood in that net ).
Cheers, Jay