sharks, and thier behavior

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try taking a speargun on the dive (without the spear) and pluck on the taught elastic, if you're in an area that is frequented by spearfisherman it works like a treat and has them flying in looking for an easy meal. Failing that, stab your buddy full of holes and swim away fast... (chuckle)

regards
Dennis
 
dennisg:
try taking a speargun on the dive (without the spear) and pluck on the taught elastic, if you're in an area that is frequented by spearfisherman it works like a treat and has them flying in looking for an easy meal. Failing that, stab your buddy full of holes and swim away fast... (chuckle)

regards
Dennis

so that is on the assumption that the sharks are attracted to either or all of the following;

1. sound of elastic snap
2. sound of spear swishing through the water and hitting....
3. blood of the fish

So this is a conditioned response of the sharks in an area where spearfishing is frequent. Sharks hear elastic snap followed by swish/or scent of blood , which males the sharks deduce "... an elastic snap leads to bloodied sea creature..."

What if spear fishing isnt practised?

paolov
 
Use a rebreather. This doesn't attract sharks per se, but the lack of bubbles will not frighten them nearly so much.

It's "all" about noisy, scary bubbles. Bubble bubble, toil and trouble... oh now I'm a poet!
 
Archman,

You're a poet and you don't even know it!
 
hmmmmmmmmm, come to think of bubbles and scaring...


thought this isn't about shark.....

there is a spot (house reef) where there is a resident grouper (named : groupie, location : groupies rock) where a 1 Meter grouper can be seen. as soon as divers arrives he goes into his hole into the rock.

there was a bout a year that no one could dive the site as there was this fish pen (trap) colloquially called 'baklad', constructed to catch pelagic fishes like tuna etc. This had license to be constructed and operated.

then Moonsoon season came and washed this 'baklad' down. sure enough the bamboo pilings used as post washed all over the nearby margins and A WHOLE LOT OF DEBRIS down under.

and so it came that we gathered up some of the debris (well some of it as there are still some scattered from 90ft to 120ft.) and poised it up and around groupies rock taking great pains (oh the pains this gave us 0 to deco time on the SUUNTO mosquito, even on nitrox! , boy! those where great non-recreational dives!!!) as i was talking about taking great pains to ensure that the bamboo poles affected creatures to the minimum.

a year passed and HOW "if you build it they will come" is so true! indeed they did arrive to join in groupies rock!

the new inhabitants are : a couple of schools of yellow tip juvenile barraccudas, whole bunch of wrasses and schools (gangs more likely) of juvenile surgeons, sardines, a snapper, and 5 batsihes, 2 of which really blows the whistle that divers are coming that alerts Groupie to our approach.

Occassinally cuttle fishes , adult barraccuda could be spotted (no sharks as yet)

any way getting back to the bubbles bubbles, this may be the reason why Groupie may go dashing into the hole when a number of divers approches, he may be scared of the sound of the Bubbles. but they don't have ears do they? so ok, maybe the Lateral line picks up the violent bubbles and scares Groupie in.

and i am able to enjoy groupie when we are just two AND MOST BENEFICIAL is when i dive ALONE!!!! single diver means less bubbles, means less disturbance that affects Geoupies Lateral lines. translates to Quality time with Groupie!!!!

yeah yeah that's it, the bubbles scares grioupie.

Now how to attrack sharks around the rock?!

:eek:)

paolov
 
Ever wonder how loud we divers sound to fish? Their ears (or auditory systems) are tuned for long-range, low-volume sounds... we must sound like a squad of super-sonic jets to them everytime we go down... imagine the poor things when we go on a night dive!!!! :( (sigh) I wish I could afford a rebreather.
 
Not sure I get the point. So - the shark wasn't supposed to swim so close to the divers?
 
doole:
Not sure I get the point. So - the shark wasn't supposed to swim so close to the divers?

Didn't realize there was a point to my post, other than to provide a recent example in shark behavior/interaction with divers. This seemed to be the flavor of the thread.

You read too much into things.

If you don't shudder when a large GW swims up to you, you're a bolder diver than I.
 
https://www.shearwater.com/products/peregrine/

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