[瞬間看地球] 水中發光體 深海短尾魷魚

vandas

水中發光體！深海短尾魷魚如此美麗

我們看到這些精美的照片來自水下攝影師Todd Bretl，用鏡頭記錄了在水中發光的『短尾魷魚』。『短尾魷魚』使用鰭游泳並利用噴氣前進，透過透明皮膚上圓點般的色素細胞來變換身體顏色，這種鮮亮的顏色既用來追求配偶，也用來偽裝藏身。

『短尾魷魚』並非是自己發光，牠們是依靠一種發光細菌而發出光芒，這種發光細菌則寄生於短尾魷魚所謂的發光體內。為了獲得避難所和穩定的營養來源，發光細菌為短尾魷魚提供發光能力，兩者之間是相互利用的共生關係。


Eerie beauty of the squid: Underwater photographs which capture spectacular colours of sea creature usually thought of as ugly

• Bobtail squids use thousands of cells in the outer layer of their skin to change colour
• They transform to attract a mate or blend in with their surroundings

These stunning images capture the amazing skin of the bobtail squid, who use thousands of cells to change colour.

The cephalopods have translucent skin with pigments called chromatophores, which appear as small patches or dots. They use the cells to transform so they can attract a mate or blend into their surroundings.

Underwater photographer Todd Bretl took the incredible pictures during one of his many expeditions into the sea.


Stunning: A picture of a bobtail squid taken by Todd Bretl, a specialist underwater photographer


Transformation: The photographer has captured the thousands of pigment cells squids have on their skin arms which cause them to change colour

He was raised on a boat in Bermuda and says he grew up with the ocean as his playground and constant companion.

His website says: 'After years spent in envy of the island's many scuba divers, he eagerly began diving as soon as he was able, at the age of 12.'

'Hundreds of dives later, and on an impulsive desire to try something new, Todd purchased some basic underwater photography equipment to experiment with during a 2008 dive trip to Palau.

'There, he had the serendipitous good fortune to spend much of his time with underwater filmmaking legend Stan Waterman, whose encouragement, inimitable good humor, and ageless enthusiasm inspired Todd.'

'After taking over two thousand images in Palau, Todd returned home utterly addicted to the unique balance of art, science, technology, and adventure provided by the pursuit of underwater photography.'


Colour: These squids' cells appear as small patches or dots causing the formation of yellow or brownish-black pigments


Pattern: The skin of the bobtail squids appears as  dots which are formed because of the change in pigments in their skin


Reflections: The photographer has captured the  colourful skin of the squid shining on the surface of the water

'Since that time, Todd has strived to continuously further his skills with a camera and to capture unique images of the underwater world that he fell in love with as a young child.'

Todd's photographs have appeared in commercial and trade publications, and he has also won multiple international competitions.

Bobtail squids are similar to cuttlefish. They are small animals with eight suckered arms and two tentacles.

They live in shallow coastal waters of the Pacific Ocean and some parts of the Indian Ocean as well as off the west coast of the Cape Peninsula, South Africa.

Like cuttlefish, they can swim by either using the fins or by jet propulsion. They are also known as dumpling squid or stubby squid.


Translucent: Part of the skin is almost completely  see-through as the squid blends into the surrounding waters


Mirrored: The bright colours of the squid are  reflected in the water as the skin's pigment give it a brown and yellow  tinge


White: The small sucker arms are curled up beneath the body of the squid

eaglelu

魷魚與章魚之屬，是大自然界的巧妝師，更是演化下物種的翹楚。
軟組織動物，可以任行於各種地形，聰明、魔術般的他們，總令人讚嘆!!

klamb

非常漂亮的照片.
短尾魷魚video,非常有趣的藏身之法,
Hawaiian Bobtail Squid (Euprymna scolopes)

koonwah

此乃八爪魚,不是魷魚,軟組織動物

sawchuchu

thanks for sharing

vandas

Euprymna scolopes, Hawaiian bobtail squid



Euprymna scolopes is a small (to just 35 mm ml) sepiolid squid endemic to the Hawaiian Islands. While nocturnal like other sepiolids, it is unusual in that it ranges into very shallow water just 2-4 cm deep. Most other sepiolids are found in relatively deep water.

Euprymna scolopes can be found at night nearshore over sand flats by wading with a light or lantern or snorkeling with a dive light. During the day it buries itself in the sand. When it emerges from the sand it keeps a "sand coat" on its dorsal surface which is presumed to give it camouflage when attacking prey.

The sepiolid is relatively short-lived, just 3-10 months from egg to its semelparous death. Eggs are 2.0 mm in diameter and laid on the undersides of coral ledges in shallow water. Paralarvae grow very fast; Hanlon et al. (1997) found E. scolopes to breed and lay eggs in the laboratory just 2 months after hatching from the egg. Juveniles are frequently found with adults in shallow water. Adults are sometimes trawled offshore in mid-water in depths to 138 fathoms. They have been reared in the laboratory on live shrimp in Hawaii and on mysids at Woods Hole.

It has been proposed that E. scolopes can become an easily-reared cephalopod for laboratory research projects. Numerous laboratory studies have been done researching its symbiotic bacterium Vibrio fischeri which lives in the sepiolid's light organ to produce a weak light under the body of the animal. This gives it counter-shading and camouflage from predators.

There are a limited number of studies on the behavior of E. scolopes in the wild, probably because of its nocturnal habits. Anderson and Mather (1996) in describing its escape behaviors said "these large number of unpredictable responses from a nocturnal and small sepiolid such as E. scolopes suggests a high level of neural complexity, perhaps what one might expect from a behaviorally 'advanced' cephalopod mollusc."

antimatter

此乃八爪魚,不是魷魚,軟組織動物
koonwah 發表於 2013-9-30 09:20 PM

英文係squid，咁應該係屬於魷魚類，八爪魚係octopus

話時話啲寄生菌係佢體內，即係唔係佢本體
咁唔通佢可以同寄生菌心靈溝通，佢想發光時佢哋就發光

felix996

跟大王魷魚比起來，可愛多了。

麵包和牛奶

好細只好Q好得意···

denver88

海中的世界還有很多不為人知的秘密，同時海底生物能夠如此絢爛奪目，繽紛多變的色彩真是太神奇了感謝您的介紹，又上了一課

jlt577

beautiful creatures.. good sharing.. will support you for sure

fidodidow2k

感謝大大分享.
它藏身的用意是為了休息嗎?
如果是躲避敵人彷彿有些慢耶.

nds.nds28

小八爪魚,好可愛

richardmin

眼前一亮。