- Shark attacks are on the rise.
Maybe - but not last year.
Yes the long term trend may well be ascending - but if one factors in population growth and the ever increasing number of aquatic recreationists = potential victims, the overall, already infinitesimally small per-capita risk of Shark strikes may even be decreasing!
This however with caveats, see below!
- It is in fact more dangerous to play golf than it is to surf or scuba dive, because statistically more golfers die each year from lightning strikes than people die from shark attacks.
Because???
- To start with, we are diminishing bio-diversity in the ocean. Overfishing has removed 90% of the fish from the sea since 1950. Every single commercial fishery is in a state of decline. This is not just bad news for humans who eat fish, but it is very bad news for sharks, orcas, whales, seals and dolphins who have no choice but to eat fish. In other words, starvation is a very big motivation for opportunistic attacks.
What a load of horseshit - predator/prey cycles anybody?
And are we only decimating the prey - or is it not rather so that we have disproportionally targeted predator populations among which the Sharks?
The truth is that there is not one single documented case of more Shark attacks occurring because of overfishing!
In fact, when it comes to some GWS populations, we may be experiencing the exact opposite!
Having protected the Pinnipeds, we are now seeing more GWS in California, the East Coast of the USA and also Western Australia! And there are authoritative voices claiming that the Tiger Shark population of Hawaii may be increasing owing to the protection of Sea Turtles!
And not every commercial fishery is declining!
Yes most if not all are severely depleted - but owing to good management, several are rebounding, especially in the US!
- Halal demands for live animals?
Right.
Hundreds of thousands of cattle and sheep producing dozens of bodies and thousands of tons of animal feces and urine are the cause of n=3 Shark strikes in 2011, n=2 in 2013 and n=1 in 2014? By GWS and not the ubiquitous scavenging Tigers?
Really?
The fact is that there are more water users going to ever more remote locations and extending their season due to better gear. And at the same time, after decades of protection, there are more large GWS and there is more of their coastal Pinninped prey. You draw the inevitable conclusions.
And anyway, considering the infinitesimally small risk of those Shark strikes, the main factor here is plain and simple chance and bad luck - nothing more nothing less!
- Shark drumlines, meant to discourage sharks from approaching beaches,
actually create another attraction. Sharks and other creatures become
snared and entrapped and they die; this in turn attracts more sharks,
bringing them within close proximity to the beaches.
I see. Snared and entrapped. In a drumline.
And anyway - are there more or less Shark strikes on beaches with drumlines?
- Climate change, ocean acidification and pollution are other factors affecting the migration patterns of sharks.
Oh yes oh yes - especially acidification!
Evidence = a big fat zero, especially the implicit assertion that those factors would attract Sharks to the coasts where they would then strike people.
Remember this?
Kirsten E
Popularizing science is a very difficult thing to achieve. It is worth considering that misinformation becomes widespread because it appeals to the general public’s sense of Right and Wrong, where soundbites with some tenuous connection to a factual foundation fit firmly into a black and white worldview. It is not surprising that sympathetic individuals fall prey to exaggerated claims, because they lack the background, ability, or dedication to look deeper.I am guilty of being a bit of a loudmouth when discussing shark conservation, but as it is my intended career path I am always looking to further my knowledge. The difficulty is that most people’s introduction to these issues is not from researchers, but from organizations like Sea Shepherd or documentaries like Sharkwater, who seek a reactionary, emotional impact to make a point. Once that impression is made, it is very hard to scale it back to a more realistic discussion, perhaps because it lacks the same shock factor that appeals to people’s indignation in the first place.
It’s ironic that conservationists can be their own worst enemy.And the Huffington Post?
Not impressed!
PS - David is on it as always! :)
PS2 - it now says, This post has been edited to change factual errors contained in the first version.
Right. E.g where it now basically states that having removed 90% of the big predatory Fishes (= including Sharks!), the remaining 10% of Sharks are hungrier and are thus striking people.
FFS!