The deep is a biological oxygen and nutrient rick environment that is only constrained by a lack of sunlight. Thus it is the natural home of an extensive and uniform biome that we have barely sampled. That process is now well begun.
There are huge creatures down there and that surely includes the giant sea serpent although it is well enough adapted that it could simply live mostly in the Sargasso Gyre and stay quite close to the surface most of the time.
The mostly unknown 'rest' may well be mostly adapted only to the deep. This is a survey of what we think we know so far. It is interesting. Yet i suspect it is a bare beginning.
Mystery Monsters of the Deep Dark Sea
http://mysteriousuniverse.org/2014/08/mystery-monsters-of-the-deep-dark-sea/
We live on a planet mostly plunged into cold darkness. Most people
know that two-thirds of the Earth’s surface is covered with water, but
have you ever stopped to think about how most of that area lies in the
deep dark where no sunlight ever penetrates? The fact is that the
majority of our planet lies in a cold, eternal night; a practically
unexplored alien world deep under the sea that lies in perpetual
darkness.
The sunlit zone of the world’s oceans, where 90 percent of all known
ocean life resides, extends only to around 600 feet down, sunlight
slowly fading in ever darkening bands as the depth increases. The rest
lies within what is known as the twilight, or disphotic zone, and then
deeper into the midnight zone, known as the aphotic zone. Of all of our
vast oceans which cover most of our planet, 90 percent of these waters
lie deep within the stygian chasms of perfect pitch blackness within the
midnight zone. It is a cold place, perpetually blanketed with darkness
and immense, crushing pressure, where nightmarish creatures skitter and
flit far from the sunlit world with which we are familiar. Very little
is known about this dark world. Such depths are notoriously difficult to
study and we have only barely scratched the surface of what lies there.
All we know for sure is that the truly deep depths of the world’s
oceans offer continual surprises. New species unlike any others known
before are routinely discovered here, and indeed wholly new and alien
biomes in extreme environments that no life had even been thought
possible, such as deep sea thermal vent communities, have challenged our
very notions of what life is and how it has evolved. These depths and
the bizarre organisms that call them home are so alien that they are
often used as a template for what we might expect to find in extreme
habitats on other worlds.
As inhospitable as the deepest, coldest abyssal depths of the ocean
may seem, this is a place in fact teeming with life, far from the
desolate undersea desert it was once thought to be. Craig M. Young of
the Oregon Institute of Marine Biology once described the abyss as
having biodiversity that “may exceed that of the Amazon Rain Forest and
the Great Barrier Reef combined.” It is little wonder then that from
these dizzying, midnight depths spring unexplainable mysteries and
undiscovered organisms that we still do not grasp. Let us delve down,
down, down into the inky murk of this dark earth and take a look at some
of the perplexing enigmas that call to us from there.
Beebe’s Abyssal Fish
Some of the greatest ichthyological mysteries of the century were
uncovered in the 1930s by the deep sea scientist William Beebe, who was
head of the tropical research department at the New York Zoological
Society. Descending in his bathysphere- a small metal spherical craft
barely large enough to hold a full grown man- into the deep dark sea off
of the coast of Bermuda, Beebe was the first person to brave such
crushing depths and truly get a look at the alien world that lies in the
eternal night of our world’s deep oceans. What he saw was a place
unlike any that had been ever observed before; a vast sea of pitch black
inhabited by translucent, gelatinous creatures, glowing jellyfish,
fanged monsters, and the innumerable twinkling lights of bioluminescent
organisms like a sea of stars in the dark cold of space. In his book Half Mile Down, Beebe wrote:
“It was stranger than any imagination could have
conceived. I would focus on some one creature and just as its outlines
began to be distinct on my retina, some brilliant, animated comet or
constellation would rush across the small arc of my submarine heaven and
every sense would be distracted, and my eyes would involuntarily shift
to this new wonder.”
During his study of the Bermudan depths, Beebe made many detailed
notes and sketches of his discoveries, but sadly the technology of the
time did not allow for underwater photography at the depths he was
operating at. Many of the creatures Beebe described and catalogued in
his study, collectively referred to as Beebe’s Abyssal Fish, are still
solely known from his accounts and sketches, with no flesh and blood
specimen ever recovered as of yet and never seen since. Of the various
unknown species Beebe observed, some of them truly stand out.
Bathysphere exploring the deep.
The fish Beebe called Bathysphaera intacta was observed at a
depth of 2,100 feet in 1932, and was described as 6 feet long with a
row of pale blue lights along its sides. The fish also had two ventrical
tentacles trailing from its sides that were each tipped with red and
blue lights, and large prominent teeth that the researcher described as
being reminiscent of a barracuda’s. Beebe classified this fish
with scaleless black dragonfishes of the subfamily Melanostomiidae, but the largest known dragonfish of the time was a mere 15 inches in length.
Another fish Beebe encountered was what he called the Pallid Sailfin (Bathyembryx istiophasma),
a two foot long fish spied at a depth of between 1,500 and 2,500 feet.
The Sailfin was of a pale, olive drab color with no discernible luminous
organs and possessing a prominent long, wide, filamentous
pectoral
fin. It was seen only once, and Beebe was not able to capture
the specimen.
Other smaller, yet no less mysterious fish were observed by Beebe as
well. The Abyssal Rainbow Gar was a 4 inch long species observed at a
depth of 2,500 feet. Beebe saw four specimens swimming in a stiff,
upright posture and described them as having long beaks and colorful
bodies of scarlet, blue, and yellow. There was also the bizarre Five
Lined Constellation Fish (Bathysidus pentagrammus), with its
round body, disproportionately large eyes, and lines of purples and
yellow bioluminescent lights along its sides. It was sighted at a depth
of 1,900 feet and was so unusual looking that it was speculated that
Beebe had in fact seen merely a cluster of jellyfish obfuscated by mist
on the bathysphere’s porthole.
Depiction of Beebe’s Bathysphere Fish
It is impossible to classify any of these fish with confidence as
none of these species have ever been captured or sighted again, and they
are only known from Beebe’s descriptions. In modern times, the
technology to allow us to more efficiently explore these depths has
progressed, so perhaps sometime in the future we may have some answers
as to what Beebe saw through his porthole down there in the deep dark
sea all of those years ago.
The Bloop
In the summer of 1997, the U.S. National Oceanic and Atmospheric
Administration (NOAA) detected an unusual undersea sound on autonomous
hydrophone listening stations situated deep in the Pacific ocean for the
purpose of monitoring deep sea phenomena. The sound was an ultralow
frequency and extremely loud, as it was picked up on several stations
that were located up to 5,000 km apart. The bizarre sound rose steadily
for over one minute, and did not exhibit characteristics inherit to man
made noises such as those of submarines or drilling, nor of known
geological phenomena like earthquakes or volcanic activity. The audio
signature of the noise had a unique soundprint that puzzled scientists
and became to be known simply as the “Bloop.”
The Bloop demonstrated some unique qualities, such as rapid
variations in frequency and a rather organic sound, that fueled
speculation that it had been made by some form of marine creature. The
problem was that the sheer volume of the noise, which had carried it to
far flung hydrophone arrays thousands of miles apart, meant that if it
had indeed come from a biological organism it would be something far
larger and louder than any known to currently exist. If this was some
marine creature, then what sort of beast would be capable of such a
massive roar?
The discovery of the Bloop became hotly debated and highly speculated
upon. Theories ranged from some gargantuan unknown leviathan to a new
type of whale evolved to produce sounds more efficiently and loudly.
Other, more far out hypotheses believed the sounds to be from
Lovecraft’s Cthulu itself, an idea encouraged by the fact that the Bloop
was emitted from a point 1,760km from the location of the sunken city
of R’yleh, where according to Lovecraft Cthulhu was imprisoned.
Trying to find some rational explanation for the strange sounds, some
scientists pointed to data from undersea acoustic surveys conducted
from 2005 to 2010 that seemed to suggest that the Bloop was most likely
caused by one of the tens of thousands of icequakes that occur every
year in the southern Pacific. Icequakes are caused by the melting,
cracking, and shearing of sea ice as well as pieces of glaciers breaking
off. Proponents of the icequake theory pointed to the similarities
between the acoustic signatures of icequakes and what was seen in the
Bloop, as well as the fact that icequake noise can travel thousands of
kilometers just as seen in the mystery recording. It was also pointed
out that the audio recording for the Bloop responsible for popularizing
the theory of a large animal had been played back at a higher speed,
giving it the illusion of having more of a biological quality than it
possessed when played at normal speed.
The official statement that the Bloop was caused by an icequake
seemed to spell the end of speculation and the whole mystery was
proclaimed “solved,” yet there are still those that don’t buy into the
official explanation. Skeptics of this explanation point out that it has
never been shown that the signature is definitely that of an icequake,
and the closest that could be said was that it was “probably” an
icequake. The sound signature of the Bloop does not completely match
that of an icequake, and still displays some anomalies that don’t
totally fit with one. In addition, upon further analysis at least one
NOAA scientist has redacted his opinion that the Bloop was caused by ice
activity and has continued to stand behind the marine animal
hypothesis.
It seems that this mysterious sound from the deep has perhaps not
been completely solved just yet. Questions still remain. Unfortunately
for those who want a concrete answer, since the Bloop was only ever
heard once, we will probably never know for sure.
Super Eels
A curious finding was dredged up from abyssal depths off of South
Africa in 1930. The Marine Investigation Expedition was an extensive
round the world research expedition led by a Professor Johannes Schmidt
aboard the vessel Dana. During the last year of the expedition,
the ship fished up a colossal eel larvae, or leptocephalus, in water
over a thousand feet deep off the Cape of Good Hope. Due to the extreme
depths, the animal was dead upon reaching the ship, but nevertheless
shocked all those who examined it.
The larvae was measured as being 184cm long (just over 6 feet), which
is large but all the more so when considering that the larvae of a
common eel typically measures only 2 to 4 inches, which in turn grows
into an eel around 4 feet long. When extrapolating from the typical
growth rate of eels, the 6 foot leptocephalus was theorized to become an
adult that would measure around 80 to 100 feet in length, although a
more conservative estimate would be more like 70 to 80 feet. In the
freshwater eels of North America and Europe, adults can be a dozen times
the size of their larval forms. According to an article in The Evening Post, Volume CXVII, Issue 47, 24 February 1934, Page 24,
the South Africa specimen was subsequently preserved and sent to Marine
Biological Laboratory in Copenhagen, Denmark where it was put on
exhibit.
A similar find was made in New Zealand when another
large leptocephalus, this time around 3 feet long, was pulled up out of
the depths in 1959. In this case the larva was assigned the name Leptocephalus giganteus, and
the South African specimen was later also classified under the same
name even though it was not clear whether the two were actually of the
same species.
Since no other specimens of Leptocephalus giganteus have
been collected, there is little data to go on. However, judging from
known growth rates of similar creatures, it would appear that the deep
seas could be home to some truly monstrous eels indeed. These giant eel
larvae fit neatly into the theory postulated by the cryptozoologist
Bernard Heuvelmans of giant eels of this sort, what he referred to as
“super eels,” accounting for many reported sea serpent sightings.
Speaking of Heuvelmans…
Heuvelman’s Super Squid
We know the seas have big squid. The once legendary Kraken, now known as the giant squid, of the genus Architeuthis, and the even more massive colossal squid (Mesonychoteuthis hamiltoni)
are famous for their enormous sizes. Giant squid, for instance, are
estimated to reach total lengths (including tentacles) of up to 13
meters (43 feet) and perhaps even larger, with colossal squid being even
more massive. However, is there an even more monstrously huge type of
squid lurking in the unexplored depths of our oceans?
The famed cryptozoologist Bernard Heuvelmans, often referred to as
the father of modern cryptozoology, certainly thought so. Inspired by
reports from outsized specimens of giant squid washed up in
Newfoundland, some of the more outrageous reports mentioning squid 80 or
90 feet long, Heuvelmans wondered if there were specimens of giant
squid out there, or even a new species that were far larger than the
proposed size limits. Another report from 1924 further added fuel to his
theory. On October 25, 1924, a Mr. White and Mr. Strachan found what
they described as a “record octopus” washed up on near Baven-on-Sea,
Natal, South Africa. Pieces of the carcass had been missing, including
the mantle and long portions of the tentacles, making size estimations
difficult, but judging by illustrations of the animal Heuvelmans
estimated that the total length of the animal would have been a
monstrous 115 feet long.
A fair amount of sightings reports also fascinated Heuvelmans. One
such sighting occurred at night during WWII by an A. G. Starkey off the
Maldives. He was allegedly alone on deck and saw a squid laying
alongside the 175 foot (53 m) boat that was nearly the same length. He
said the arms were 2 feet wide (0.6 m) and that the beak was visible. A
canadian by the name of Charles Dudoward also reported spotting a squid
washed up on shore in 1922 that had arms 50 feet (15.2 m) long and one
tentacle 100 feet (30 m) long. The tentacle apparently ended in a hook
10″ (25 cm) wide and 12 in (31 cm) long. Dudoward’s own grandfather had
also made a sighting in British Columbia of a squid which had arms over
100 feet (30 m) with suckers ranging from the size of saucers to basin
plates.
Heuvelmen’s also considered as evidence of giant squid the existence
of sucker marks on sperm whales far larger than normal which he took to
imply truly humongous squid lurking in the depths. Upon hearing of
sucker marks 4 inches in diameter, Heuvelman’s extrapolated that into a
squid with a body length (excluding tentacles) measuring at least 30
feet long. Even larger sucker marks had also been recorded, with the
famed cryptozoologist Ivan Sanderson writing of sucker marks measuring
18 inches long. Sanderson had also made mention of sucker marks
measuring all the way up to 2 feet in diameter, all of which would imply
gigantic squid far, far larger than any known thus far. It was pointed
out by skeptics that these extra large sucker marks may have been marks
made by lampreys rather than those of squid, or that they could have
been wounds inflicted on young whales that grew to appear larger as the
animals matured, but Heuvelmans was not convinced by these
arguments. Heuvelmans also took reports of tentacles measuring 45 feet
long and speculated that they were short arms rather than the long
tentacles, from which he calculated that the creature itself would reach
the truly mind boggling total length of 140 to 240 feet if male and up
to 300 feet if female.
Artwork by Chris Garrett at Deviantart
Based on all of these observations, plus various sightings reports of
super sized squid from around the world, Heuvelmans proposed that there
were squid that measured well over 100 feet and in some case up to 300
feet lurking in the world’s oceans. This seems perhaps a little far
fetched, yet even if they are not hundreds of feet long it is entirely
feasible that squid at least larger than any currently known are out
there prowling the depths.
Mystery Shark of the Mariana Trench
It is impossible to talk about the truly deep places of the world
without mentioning the Mariana Trench, a massive undersea canyon
stretching around 2,550 km (1,580 mi) along the western Pacific Ocean.
Dropping down up to 7 miles into darkness at its deepest point, the
yawning chasm of the Mariana Trench is the deepest part of the world’s
oceans, and remains mostly unexplored.
Along the outer edge of the Mariana Trench lies the extremely deep
Suruga Bay, Japan. It was here that researchers caught footage of a
truly monstrous shark while studying the marine life of the area.
Japanese marine biologists studying sea life at the bottom of a deep and
little explored part of the bay set up a container filled with potently
smelly bait designed to lure in a wide variety of sea life even from
great distances away. The container was placed at a depth of 1.5 km
(nearly 1 mile), and a camera was attached nearby to capture footage of
any sea life in the vicinity. The plan was to take video of and catalog
the different types of creatures that showed up.
At first, the bait attracted numerous small fish and some
crustaceans, nothing particularly unusual. Things got more exciting when
a shoal of rare, deep water sharks measuring around 2 meters (6.5 feet)
long moved in and enthusiastically fed on the bait. Researchers were
surprised when the shoal of sharks suddenly and inexplicably darted off
in all directions as if they were afraid of something. At first, it was
unknown what could have caused such large sharks to scatter like that
away from such irresistible bait. The reason soon became apparent when a
humongous shark dwarfing the others loomed into view from the
surrounding murk. The incredibly large shark proceeds to slowly soar in
front of the camera and show interest in the bait before gliding off
again. The scientists who viewed the mysterious shark were puzzled by
its sheer size, and nobody was sure just what exactly they had seen.
Still from the video footage.
It is apparent upon viewing the footage
that whatever the shark is, it is gigantic, although it is difficult to
say for certain just how gigantic. When trying to ascertain its size,
researchers took into account the dimensions of the bait container, as
well as the length of other sharks that can be seen in the footage
before the monster shows up, which were judged to be around 2 meters
(6.5 feet) long. Using these as size comparisons, the mystery shark was
estimated as being at least 30 feet long, with more exaggerated
estimations putting it at more like 50 or 60 feet long.
The footage taken by the underwater camera near the bait station
became quite popular in Japan, and it has gained some notoriety in
cryptozoological abroad as well. It is unclear just what is seen in the
video, and some have jumped on the explanation that the mega shark is a
surviving megalodon. The researchers who originally took the video are
inclined to believe it to be a very large specimen of the rare Pacific
sleeper shark, and other scientists have concurred. Sleeper sharks can
get quite large, and are believed to be capable of reaching lengths of
up to 7 meters (23 feet) long, yet if the shark in the video is of this
species then it would represent by far the largest specimen ever
recorded.
Pacific sleeper shark
Arthur C. Clarke once said “How inappropriate to call this planet
Earth, when it is quite clearly Ocean.” How true this is. Our world is
mostly comprised of vast, largely unexplored water plunging into an even
vaster, even more unexplored perpetual twilight. Just what lies hidden
down in this darkness that makes up most of our planet? We have scarcely
managed to uncover even a fraction of the myriad organisms that call
these abyssal places home. There in this zone of black and amidst the
flickering constellations of bioluminescent lights lie ancient mysteries
that remain and perhaps always will.