Diving Edithburgh Jetty, South Australia! | JONATHAN BIRD’S BLUE WORLD


Coming up, Jonathan does a night dive under
a jetty in South Australia in search of the elusive Pajama Squid! Welcome to Jonathan Bird’s Blue World! Australia is an awesome place to scuba dive. But when most people imagine diving in Australia,
they think of the Great Barrier Reef in Queensland. Sure, it’s one of the most famous reef systems
in the world, stretching more than 1,000 miles. And the water is warm. But there is also great diving down in the
colder water of South Australia. Near Whyalla, there are giant cuttlefish. And south of Adelaide, Leafy Sea dragons. And in the tiny town of Edithburgh…a jetty. But this plain looking jetty is one of the
best dives in Australia. The adventure begins in Adelaide. The whole family is joining me on a South
Australia dive trip. We begin with a hike in Morialta Conservation
Park, just outside Adelaide. We’re hiking up into the hills to see some
waterfalls. And while I like a good hike now and then… …I would say that scuba diving is easier…in
general. But the view from the top makes it worth the
effort! And on the way down we find that lovable symbol
of Australia, a Koala sleeping in a tree. But then we pile into the van for a 4 hour
drive to Edithburgh. Edithburgh and its jetty, originally were
established to export grain and salt from the region. Now this quaint coastal town on the windy
Yorke Peninsula is also known for its 55 turbine wind farm, and fantastic scuba diving! The dive at the jetty is good anytime, but
at night the really cool stuff comes out, so I’m waiting for sunset. After dark, local expert divemaster Daniel
Kinasz walks me through the dive plan, and we suit up. The water is chilly but shallow, so we can
stay a long time looking for cool critters, if we bundle up under our drysuits. You’ve got to love this. It’s a beautiful night in South Australia. The air is calm. There is no wind. There are no waves–just perfectly crystal
clear water. I have a feeling this dive is going to be
really really good. In Australia they are so considerate of divers. They have all these nice jetties, nice place
to put your tank to suit up, stairs right into the water. It seems like in Australia they appreciate
scuba divers more than in other places. So this is apparently—according to Daniel—one
of the best places in the whole world to find the Pajama Squid. Now as you know, I love cephalopods and I’ve
never seen a Pajama squid, and in fact I’ve only seen pictures (and that’s how I know
what they look like) and they are really cool so hopefully we’re going to find them. And with a few final touches, I’m ready
to go look for the Pajama squid! Look at this! This doesn’t get any easier! Diving in Australia man! Steps! At the bottom of the steps, Daniel and I flop
into the 52° F water and submerge. As I sink down into only 3 meters of water,
I immediately start finding stuff. The bottom is crawling with sea stars. The Six-armed cushion star. A curled up 11 arm sea star. A biscuit star, and a brittle star on the
run from my bright lights. There is a sea urchin with a crown of purple
tunicates, and a couple of nudibranchs—basically snails without a shell. A smooth anglerfish is waiting patiently for
a meal. The anglerfish is the Australian term for
what is known as a frogfish in many places. Daniel points out the rarely-seen Southern
Velvetfish. This highly camouflaged fish is related to
scorpionfish, so it has venomous spines in its dorsal fin for defense. It’s a camouflaged ambush predator, waiting
patiently for prey to come close. Nearby in the seaweed, a well-camouflaged
Short-headed Seahorse. It’s a male with a belly full of eggs. With seahorses, the male carries the eggs
in a pouch until they hatch. This species of seahorse is perfectly adapted
to live camouflaged within this seaweed. A short distance away, another animal with
amazing camouflage. On a finger sponge, a spider crab using algae
and seaweed as a disguise. On the columns of the jetty, a rich collection
of colorful sponges, and among them another spider crab. Instead of algae, this crab has covered itself
in sponges to blend in. And at the base of one of the columns in the
sand, I come across this little guy, smaller than a golf ball. Known as a Southern Bobtail squid, it’s
part of the family of cephalopods known as bobtail squid, which are in fact not squids
at all. They are small cuttlefish. It’s a minor distinction, but that means
they have a cuttlebone inside for buoyancy. Like squid, they can jet around with squirts
of water, they can swim with the two fins on the front of their body, and of course
they can crawl around on their arms. Bobtails have a unique way of hiding from
predators. They burrow into the sand, so that only their
eyes are left sticking out. As I get deeper, working my way out towards
the end of the jetty, I come across this amazing and rare octopus. The Southern Sand Octopus is only found in
the waters of Southern Australia and Tasmania. It is unique in being one of the few octopods
that lacks chromatophores—color-changing skin cells. So it has no ability to camouflage itself
by adapting its color to its surroundings. As a result, it only comes out to hunt in
the dark. During the day it would be easy prey for a
fish. This octopus is crawling through the rubble
and algae, looking for a crab or shrimp to eat. But when it comes time to hunker down for
the day, this octopus does something surprising. Using its siphon, it blows water down into
the sand, creating a soupy mixture of sand in suspension with water, sort of like quicksand. Then it drops into the quicksand and keeps
blowing water, making the hole deeper and deeper. While many octopods are known to cover themselves
in a thin layer of sand for camouflage, this is the only species known to actually burrow. This octopus may dig down as deep as 20 centimeters,
using its long thin arms to keep a breathing hole open to the surface. I guess this guy has decided I’m not much
of a threat. This is as far as he digs for me tonight. I must have hit octopus central out here by
the end of the jetty. The Southern Keeled octopus can change colors
and tends to be found out on the sand hunting shrimp. This one is a bit smaller than my hand and
doesn’t seem to be afraid…but rather just hoping I will go away! As I turn and make my way back towards shore,
I finally find a Pajama squid. These tiny cephalopods, only the size of a
golf ball, get their name from their classic pajama stripes. Like the Bobtail squid, it’s actually a
cuttlefish. It hunts shrimp at night, sometimes eating
shrimp almost as large as itself. Many animals in the ocean that have bright
coloration like this are advertising that they are poisonous. It’s called aposematic coloration. It turns out that the Pajama squid secretes
a slime that many animals find objectionable—a type of mild poison that helps make this cuttlefish
unappetizing. Sometimes the Pajama squid wants to hide,
either to wait for prey or to escape annoying underwater photographers. In this case, it can bury itself up to the
eyeballs quickly. As I finally get back to the steps where I
started the dive, I can’t believe what I find in such shallow water: a pair of Bobtail
squid mating right under the steps! Since I have never seen this before, I have
no idea how long it will go on, but the male holds on to the female for the whole process. Since they are so still, I can get the camera
up really close and I can see the chromatophores in their skin, slightly changing size to create
different patterns and colors. Cephalopods are cool, and this has been a
great cephalopod dive! Finally, after more than 90 minutes filming
marine life, it’s time to head up. Even in the 52° water, I’m not cold. But I am almost out of air. Man, that was awesome! It really was more like a muck dive than it
was a dive under a jetty because everything that was really cool was in the muck or in
the sand but…lots of cephalopods, nudibranchs, sea stars, all kind of great stuff. I love critters, and any dive with lots of
critters is always exciting for me. The jetty in Edithburgh is by far one of the
best critter dives I have ever done in my life. It’s hard to believe that so many incredible
animals live so close to shore–under a jetty! Dives like this always remind me why I am
so fascinated with the Blue World. Hey Everyone! Thanks for watching our latest episode all
the way to the end. You’re crazy if you don’t subscribe! Hit that subscribe button now so you won’t
miss our next episode. And check out our “merch” link in the
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100 thoughts on “Diving Edithburgh Jetty, South Australia! | JONATHAN BIRD’S BLUE WORLD

  1. I love watching your videos, especially while I'm studying for my marine biology exams! The quality is impeccable. Keep up the good work!

  2. Awesome, another great video! I do have a question though, what advice would you give to someone that is trying to become a marine biologist?

  3. Ohhh, this was one of my favorite videos yet! I love cephalopods and there were so many of them! And the pajama "squid" was one of the most ridiculously adorable (and feisty!) little aliens I've ever seen! Thanks so much for this video <3

  4. Awww….! ?? Great job Johnathan! I love the pj squid (cuttlefish) ? Adorable! Even my baby squealed when she saw it on tv! ?? Awww….! Thx for the ❤?

  5. fantastic, the only catch for me would be going into the water at night, even if I did have a crew and dive buddies!

  6. Hello Jonathan! This is a great video. I have watch you since I was a really little kid. I feel like I have a special connection to as well because by grandmother works with your wife! Love your videos!

  7. the sound of music, creatures under the water and the voice of narrator was perfectly fit with this video, very entertaining!

  8. This makes me want to go to Australia! I just couldn't handle all that travelling 😀 great video as always Johnathan Bird and BlueWorld crew!!

  9. 5th year of watching you! already meat you once and hope to meat you again! much love, with out you id never had started diving!

  10. Jonathan, the more deep you go wearing scuba gear, does it waste more air? (by the way I go scuba diving too)

  11. Please stop calling Nudis “basically a snail”! They are SO much more! In fact you could do a whole episode on all the different types!

  12. I really love this channel. Marine life is so cool and Jonathan does such a good job showing and explaining it! Such passion for his work too. Keep up the great work!!!

  13. IN BACK BABY! I got my notifications down and now imma watch every new video when it comes out!
    Jonathan I’m Brett btw 😀
    Edit: I don’t know what to comment on other videos of yours because they are all great!!

  14. Another amazing video! This one especially is amazing, you found so many species!
    Edit: Totally doing a pajama squid post on my blog now! Thanks for the inspiration and information!

  15. wow! cuttlefish are my favorite. One of these days im going to get to see one in person. I got to see a few octopus off the coast of cozumel a few years ago. There really is nothing like watching a cephalopod change colors!

  16. How cute the pajama squid really was! Everybody please hit likes and subscribe him as he tries a lot to entertain all of us

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