PORBEAGLE SHARK | Shark Profile #1
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- เผยแพร่เมื่อ 1 ก.ย. 2016
- The porbeagle (Lamna nasus) is a species of mackerel shark; an order it shares with the goblin shark, the megamouth shark and the Great white. They occur in most temperate waters but are rarely seen due to their timid nature.
Identification: The porbeagle is commonly mistaken for a Great white shark. It is grey above and white below and has a very stout midsection that tapers towards the long, pointed snout and the narrow base of the tail.
Size and Life span: The porbeagle typically reaches 2.5 m (8.2 ft) in length and a weight of 135 kg (298 lb); North Atlantic sharks grow larger than Southern Hemisphere sharks and differ in coloration and aspects of life history. The Porbeagle lives around 30 years.
Distribution: The porbeagle has an almost global amphitemperate distribution, i.e. it is absent from the tropics. Unlike most fish Porbeagles have the ability to maintain their body temperature above ambient water temperature (up to up 10°C) through thermoregulation. This helps them adapt to the cold waters they prefer.
Habitat: Offshore fishing banks are the favoured habitat of the porbeagle, though it can be found anywhere from a depth of 1,360 m (4,460 ft) in oceanic basins to littoral (close to shore) waters less than 1 m (3.3 ft) deep, over the entire water column.
Diet and Prey: The porbeagle is an active predator that predominantly feeds on small to medium-sized bony fishes. It chases down pelagic fishes such as lancet fish, mackerel, pilchards, herring, and sauries, and forages near the bottom for ground fishes such as cod, hake, icefish, dories, sand lances, lump suckers, and flatfish. Cephalopods, particularly squid, also form an important component of its diet while smaller sharks such as spiny dogfish (Squalus acanthias) and tope sharks (Galeorhinus galeus) are sometimes taken.
Predators: Great white sharks (Carcharodon carcharias) and killer whales (Orcinus orca) are plausible, albeit undocumented, predators of the porbeagle.
Behaviour: The porbeagle is a shy species and natural encounters are rare. Interestingly they are among the few fishes that exhibit apparent play behaviour. There are reports from the Cornish coast of this species rolling and repeatedly wrapping itself in long kelp fronds near the surface. This activity may have a self-stimulatory purpose, though alternatively the sharks may have been attempting to feed on small kelp organisms or scrape off parasites.
Attack History: The porbeagle has very rarely, if ever, bitten swimmers or boats. As of 2016, the International Shark Attack File attributes just two unprovoked attacks to the Porbeagle both of which were non-fatal.
IUCN rating: Porbeagle sharks are currently listed as ‘Vulnerable’ to extinction and as either ‘Endangered’ or ‘Critically Endangered’ in some parts of its northern range.
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Video credits (Timestamp/Video link/Source):
00:16 - • Video (AtlanticSharks21)
00:31 - • Video (National Geographic Wild)
00:48 - www.mirror.co.uk/news/uk-news/biggest-porbeagle-shark-ever-caught-3768392 (The Mirror)
01:08 - en.wikipedia.org/wiki/Porbeagle (Wikipedia)
01:31 - americanhistory.si.edu/onthewater/exhibition/3_4.html (Smithsonian)
01:37 - • Porbeagle Shark Waterw... (Phil Rogers)
01:48 - www.fishwallpapers.com/lancetfish/lancetfish-in-sea-pic.html (FishWallpapers)
01:53 - • ミズウオLongnose lancetfis... (dssnappers)
02:10 - mpora.com/outsiders/killer-whales-attack-kill-great-white-shark-australia (Mpora)
02:14 - • Video (Smithsonian Channel)
02:26 - scubadivingezine.com/giant-kelp-forests-of-britain-might-be-gone-in-100-years/ (Scuba Diving Electronic Magazine)
02:31 - • Virtual dives - kelp f... (ScotNaturalHeritage1)
03:09 - sharkyear.com/2011/new-porbeagle-shark-record-in-denmark.html (Shark Year)
Thumbnail Image Credit: travel.aol.co.uk/2013/07/22/porbeagle-sharks-spotted-north-yorkshire-coast-heatwave/ (AOL)
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The great whites little cousin
They are my favorite shark
Omg, same here
Their like the cute big eyes cousin of the Great White!!! Beautful sharks.
If not because hungry shark game, ill never be here 😂😂😂
Lol same
Same
That the only reason we heard about them, let's not lyie here
Wtf does lyie mean? Stupid auto correct.
Same
I wish there were more videos about this species of shark. It seems under-studied, but I guess its environment makes it difficult for a thorough one. Here on the coast of California we have its cousins, the Mako, White and Salmon sharks and plenty of videos and information on them.
Awesome video!
Hi Stephen, we research porbeagle sharks here in New England. Check out our search to find the elusive porbeagle!! th-cam.com/video/GoSs48jD-G8/w-d-xo.html
It's a problem with all smaller sharks in general. Documentary makers oversaturate their content with the 'big three'. It seems nobody is interested in sharks if they aren't man-eaters, and that's a shame.
Pb white is my favourite shark, then the Mako.
Blue shark and oceanic white tip here. I see you like Mackerel sharks.
You get these of my coast here in Scotland I have never saw them but the local fishing tackle shop sells special hooks for them.
The International Union for Conservation of Nature (IUCN) has assessed the porbeagle as vulnerable worldwide, and as either endangered or critically endangered in different parts of its northern range.
You should report those shops to www.bite-back.com/?v=79cba1185463 and www.sharktrust.org/
@@daninaydenova7115 Just because it's listed as vulnerable doesn't mean it's illegal to catch lol Our New England quota is 1 per trip per day.
@@daninaydenova7115 dumbass
Look like a mini great white !
Very instructive video Thank you✌️
I ❤️ this video, it was amazing 😉 and I love the music 🎶!
Thank you!
porbeagle in real life finally see the real porbeagle
this is really good!
So cuuutee
SOOO CUTE!!!!
Porbeagle: i can also seen in hyngry shark shorts
Look So Amazing
so cute
I think they a beautiful
Porbeagle shark- A close relative of the Mako shark.
That's like mini great white shark lol 😂😂😂😂😂😂😂😂😂😂😂😂
XD
please make more videos about sharks
Good video :) however the Porbeagle shark can grow up to 3.5 meters
It looks like a tiny great white it's kinda cool.
I WANT ONE! ITS SO COOT!
Apparently there are sightings of one where I live at the beach that my brothers party is at
Looks kinda cute
What was it top speed ?
I didn't know this shark existed until I played hungry shark evolution
I dropped a like because of the shark but honestly this video was totally destroyed with the music would have been fantastic if you had music an done a voice over explaining the facts rather than having me an possibly everyone else having to pause to read what you put up
I saw one of these in Newfoundland
Damn the music for this is so at odds with the content.
Wow that is very cool you deserve more subscribers than you have
Thank you! - I will be starting up again with more videos next week
I thought wales was safe but then heard that they can swim in waters at depths of 3 foot 😭
Music?
Its the great white from the north sea
Im here because of the game "Fishing Clash"
Their are like eels
The Mite White Shark.
I once thought ireland was 100% safe
Now it is around 95%
Dw they aren't harmful and 90% of time are non interested in humans
It looks like a young great white,or like a mako shark after 10 mc burgers.
Generally it Porbeagle looks more sharp and small compare to Great White.
Who else is here due to the recent fatal Great White attack in Maine?
Ik what a carchardon carcharis is were like the only two or sincetes know
Poor deagle
Who is here from hungry shark world?
Yeah
Here cuz of mark skipping over the facts
Well add 2020 to the most recent attacks by this shark because it just killed someone in main the 27th of July!
I checked it, it was great white shark
Your right! At the time they were saying it was a porbeagle shark than like a day later after I commented they were like it was actually a great white lol
turn the music off, ffs
He is so poor
thats a great white not porbeagle porbeagles have flat heads and looks like the letter T
Tell me you didn't do any research before making this video without actually telling me.
Some lazy incorrect facts aboit size there 😊