the day octopus is active during the day
hi I'm Brandon I'm a marine biologist and an artist and welcome to nature
meets paper the place where we go on an adventure to discover the world of
marine biology I love sharing my passion of the ocean and it's creatures with you
through art if you have been with this community for a while you might
recognize this animal today we're going to be discovering the day octopus are
you ready let's dive in the day octopus or the cyane's octopus is found among
coral reefs in the indo-pacific they can be seen hiding near sponges and corals
as well as walking the seafloor if you are lucky these animals have a scattered
distribution from Hawaii all the way to East Africa I couldn't find a map
showing the range so just picture a band roughly ten degrees above and below the
equator starting in East Africa going into the Indian Ocean along the northern
and eastern coast of Australia ending in Hawaii
these octopus prefer water that is warm and perfect for creating coral reefs
the day octopus or he'e a in Hawaiian is active during the day most octopus are
active during the night this octopus lives for roughly 18 months and is
relatively small species the mantle can reach lengths of 16
centimeters with 80 centimeter arms this is basically 31 inches of arms and a 6
inch mantle these octopus have eight arms three two
chambered hearts and nine brains one for each arm and the central brain instead of
having a large four chambered heart like humans they have three two chambered
hearts these two chambers direct the flow of blood out to the body into the
central heart and then back out to the body out to the third heart the central
heart is primarily for oxygen exchange
how would we identify a day octopus one way is if it's daytime and you see one
being active another way is size and finally is
color and patterns however this octopus is a master of camouflage since it is
active during the day it needs to be able to change color shape and its
texture this seems like many of the animals that we are discovering are
doing this but back to science typically they are light brown with a dark false
eye they have dark brown tips on their arms with two rows of lighter spots at
the base of their arms the false eye spot is only visible with certain
patterns and colors so it is hard to describe and identify because it's
constantly changing its appearance to match its surrounding substrate they
live in caves or crevices in the coral another way to identify the day octopus
is by its den they leave shells and remains of food just outside of the
entrance of their den known as midden
let's discover what the day octopus eat they're predators and feed on reef fish
crabs shrimp squid and sometimes other octopuses the only hard part of the
octopus is the sharp beak that can crush shells the day octopus is listed as not
threatened on the IUCN Red List even though there are small local fisheries
for the octopus they're still the new fine
let's get into my personal encounter with this octopus
I was back at the Maui Ocean Center I didn't even plan on taking pictures of
this octopus again for the season I already had a day off so why do I need
another one well I will tell you the last time I saw the octopus it wasn't
doing much it just kind of sat there and swam once or twice but this time I
didn't even know what it was doing it was twisting his tentacles around and
curling up and I don't even I don't know if it's if it was feeding or if it was
just bored but it was cool it was cool to see the tentacles
spinning and appearing out of nowhere it almost looked like an optical illusion so
I had to take a picture and paint it again for you it has encounters like
this that always keep me on my toes I went into the aquarium with a plan and
it changed immediately that is all for this adventure I will call this painting
finished
thanks for going on this adventure with me it means so much that you take time
to discover something new by watching this video thanks for being an active
member of this community by leaving likes comments shares and subscribing it
all helps this channel grow I'm selling art and merchandise on my website as
well as teespring.com links are down below
remember share your discoveries and adventures with a friend it's more fun
that way I've been Brandon and I'll see you on
our next adventure
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