Nth NSW sharks. Can they p!ss off already?
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Re: Nth NSW sharks. Can they p!ss off already?
I think the protection of great whites started in 1999.
- The Mighty Sunbird
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Re: Nth NSW sharks. Can they p!ss off already?
Well let’s un-protect the cnuts and kill some then
Erase.
- black duck
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Re: Nth NSW sharks. Can they p!ss off already?
Everything seems to have fallen by 90% in the last 50 years except population, tech and pollution.
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Re: Nth NSW sharks. Can they p!ss off already?
Every wild animal bigger than humans is under threat.
Put your big boy pants on
I mean, tastebuds? WGAF?
I mean, tastebuds? WGAF?
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Re: Nth NSW sharks. Can they p!ss off already?
marauding mullet wrote: ↑Sun Nov 18, 2018 9:00 amThat’s kind of a wishy washy statement.
“Risk” ?
Based on attack stats or the researcher’s opinion?
Put your big boy pants on
I mean, tastebuds? WGAF?
I mean, tastebuds? WGAF?
- marauding mullet
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Re: Nth NSW sharks. Can they p!ss off already?
You already responded to my post a while back Beany, stop picking on me......
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Re: Nth NSW sharks. Can they p!ss off already?
No need to get passively aggressive with me, The Mull.
Put your big boy pants on
I mean, tastebuds? WGAF?
I mean, tastebuds? WGAF?
Re: Nth NSW sharks. Can they p!ss off already?
MM was a marginal presence on here till you decided to have a crack.
Re: Nth NSW sharks. Can they p!ss off already?
My purpose in life is to be a marginal presence on here. And in life in general.
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- That's Not Believable
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Re: Nth NSW sharks. Can they p!ss off already?
As long as you don't do it aggressively, BA.
Put your big boy pants on
I mean, tastebuds? WGAF?
I mean, tastebuds? WGAF?
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Re: Nth NSW sharks. Can they p!ss off already?
Well the study doesn’t say that. It says that the number of great whites caught in the Queensland shark control program has fallen by 92%, from .7 sharks per net per year to .05 sharks per net per year.
This is super specific information. It doesn’t include any data from WA, SA, Vic, nor from NSW — where the average yearly catch of white sharks in the netting program has sat around 6 for many years now, but where in just a couple of years of “smart” drumline tagging in select locations, over 200 white sharks have been tagged and released.
What’s a bet the numbers of tag and release in NSW waters begin to decline pretty soon. Not because the sharks are vanishing, but because they’re no longer taking the bait.
It’s still a v interesting report, https://www.nature.com/articles/s42003-018-0233-1
Re: Nth NSW sharks. Can they p!ss off already?
Pretty hard to get good statistics out of the smart drumlines data.
They have been in place for the two years of the study only at Evans and Ballina.
They were only in place at Forster/Coffs (81 tagged) for six months, similarly at the south coast locations.
What is does show is a seasonality to the numbers caught, roughly coinciding with the whale migration, but some still are around over summer.
What is also shows is they’re not rare.
They have been in place for the two years of the study only at Evans and Ballina.
They were only in place at Forster/Coffs (81 tagged) for six months, similarly at the south coast locations.
What is does show is a seasonality to the numbers caught, roughly coinciding with the whale migration, but some still are around over summer.
What is also shows is they’re not rare.
Re: Nth NSW sharks. Can they p!ss off already?
Haha. I have only read the clickbait article somewhere with its extravagant claims by the researcher that shark numbers had collapsed, but it seemed to based only on an extrapolation of Qld shark control data. It was accompanied by a photo that showed a seething mass of sharks caught in a net implying that this was what the queensland shark control nets used to catch!
I thought the real conclusion should be the effectiveness of the shark control program in reducing shark activity in a localised area.
I thought the real conclusion should be the effectiveness of the shark control program in reducing shark activity in a localised area.
“I don’t necessarily agree with everything I say ”— Marshall McLuhan
Re: Nth NSW sharks. Can they p!ss off already?
Croissy would excoriate that as MSM fake news, and rightly so.
Re: Nth NSW sharks. Can they p!ss off already?
Here's the Abstract of the report:
Decline of coastal apex shark populations over the past half century
George Roff, Christopher J. Brown, Mark A. Priest & Peter J. Mumby
Communications Biologyvolume 1, Article number: 223 (2018) | Download Citation
Abstract
Overexploitation of large apex marine predators is widespread in the world’s oceans, yet the timing and extent of declines are poorly understood. Here we reconstruct a unique fisheries-independent dataset from a shark control programme spanning 1760 km of the Australian coastline over the past 55 years. We report substantial declines (74–92%) of catch per unit effort of hammerhead (Sphyrnidae), whaler (Carcharhinidae), tiger shark (Galeocerdo cuvier) and white sharks (Carcharodon carcharias). Following onset of the program in the 1960s, catch rates in new installations in subsequent decades occurred at a substantially lower rate, indicating regional depletion of shark populations over the past half a century
Decline of coastal apex shark populations over the past half century
George Roff, Christopher J. Brown, Mark A. Priest & Peter J. Mumby
Communications Biologyvolume 1, Article number: 223 (2018) | Download Citation
Abstract
Overexploitation of large apex marine predators is widespread in the world’s oceans, yet the timing and extent of declines are poorly understood. Here we reconstruct a unique fisheries-independent dataset from a shark control programme spanning 1760 km of the Australian coastline over the past 55 years. We report substantial declines (74–92%) of catch per unit effort of hammerhead (Sphyrnidae), whaler (Carcharhinidae), tiger shark (Galeocerdo cuvier) and white sharks (Carcharodon carcharias). Following onset of the program in the 1960s, catch rates in new installations in subsequent decades occurred at a substantially lower rate, indicating regional depletion of shark populations over the past half a century
“I don’t necessarily agree with everything I say ”— Marshall McLuhan
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Re: Nth NSW sharks. Can they p!ss off already?
Just checking out Dorsail the shark tag site and the map showed Jews Point as being the first point north of Lennox heading up to Broken Head. Hadn't heard that one before.
Put your big boy pants on
I mean, tastebuds? WGAF?
I mean, tastebuds? WGAF?
Re: Nth NSW sharks. Can they p!ss off already?
As quoted on Swellnet, a spearfisher talking about dealing with sharks. Pretty good.
https://youtu.be/AtyEW2sB2to
https://youtu.be/AtyEW2sB2to
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