Sea slugs including nudibranchs. Part 18 of my documentary, "Mucky Secrets", about the fascinating marine creatures of the Lembeh Strait in Indonesia. Watch the full 90-minute documentary at http://www.youtube.com/watch?v=nJMZ6reOB0E A huge and fascinating diversity of sea slugs, or opisthobranchs (Opisthobranchia), are found in the Lembeh Strait. Opisthobranch means "gills behind", because their gills are located behind their heart. Most sea slugs have all but lost their protective shell, but compensate with more advanced weapons of defence. Over six thousand different species of sea slug are nudibranchs (Nudibranchia). The name means "naked gills", referring to the rosette of branchial plumes on their back, surrounding their anus. These gills vary greatly in form, but all have a large surface area for oxygen exchange. There are English captions showing either the full narration or the common and scientific names of the marine life, along with the dive site names. The full Mucky Secrets nature documentary features a huge diversity of weird and wonderful marine animals including frogfish, nudibranchs, scorpionfish, crabs, shrimps, moray eels, seahorses, octopus, cuttlefish etc.. Thanks to Jaycieh (https://soundcloud.com/jaycieh) for the music track, "The Unknown" and to Kevin MacLeod of http://www.incompetech.com for the music track, "Brittle Rille", which is licensed under a Creative Commons Attribution 3.0 Unported license. Thanks to the staff and keen-eyed divemasters of Two Fish Divers (http://www.twofishdivers.com), for accommodation, diving services and critter-spotting. The video was shot by Nick Hope with a Sony HVR-Z1P HDV camera in a Light & Motion Bluefin HD housing with Light & Motion Elite lights and a flat port. A Century +3.5 diopter was used for the most of the macro footage. I have more scuba diving videos and underwater footage on my website at: http://www.bubblevision.com I post updates about my videos here: http://www.facebook.com/bubblevision http://google.com/+bubblevision http://www.twitter.com/nicholashope http://bubblevision.tumblr.com Full list of marine life and dive sites featured in this video: 00:00 Hypselodoris bullocki & Glossodoris cincta, Aer Perang 00:05 Doto sp., Nudi Retreat 00:10 Hypselodoris tryoni, Tanjung Kusu-Kusu 00:15 Hypselodoris maculosa, Critter Hunt 00:20 Nembrotha kubaryana, Nudi Falls 00:30 Hypselodoris tryoni, Tanjung Kusu-Kusu 00:37 Hypselodoris kanga, Aer Perang 00:43 Doriprismatica atromarginata, Nudi Falls 00:50 Glossodoris cincta, Aer Perang 01:08 Hypselodoris tryoni, Tanjung Kusu-Kusu 01:23 Nembrotha kubaryana, Nudi Falls 01:31 Chromodoris magnifica, Nudi Retreat 01:35 Chromodoris elisabethina, Bunaken 01:41 Chromodoris annae, Bunaken 01:47 Jorunna funebris, TK 2 02:09 Discodoris boholiensis, Two Fish Divers house reef 02:25 Mexichromis trilineata, Retak Larry 02:30 Hypselodoris kanga, Aer Perang 02:35 Nembrotha yonowae, Police Pier 02:40 Chromodoris annae, Tanjung Kusu-Kusu 02:53 Chromodoris elisabethina, Nudi Retreat 02:59 Chromodoris willani, Nudi Retreat 03:05 Chromodoris magnifica, Nudi Retreat 03:19 Ceratosoma gracillimum, TK 1 03:33 Ceratosoma tenue, Jahir 03:54 Banggai Cardinalfish, Pterapogon kauderni, Makawide 04:17 Ceratosoma trilbatum, Aer Perang 04:29 Phyllidiopsis shireenae, Tanjung Kusu-Kusu 04:35 Phyllidiopsis shireenae, Nudi Retreat 04:46 Phyllidia ocellata, Tanjung Kusu-Kusu 04:54 Phyllidiopsis cardinalis, Nudi Falls 05:10 Flabellina exoptata, Police Pier 05:20 Flabellina rubrolineata, Critter Hunt 05:31 Blue Dragon Nudibranch, Pteraeolidia semperi, Hairball 05:54 Blue Dragon Nudibranch, Pteraeolidia semperi, Police Pier 06:09 Blue Dragon Nudibranch, Pteraeolidia semperi, Hairball 06:34 Phyllodesmium crypticum, Retak Larry 07:04 Phyllodesmium crypticum, Hairball 07:12 Hypselodoris emma, Aer Perang
Views: 161006 Bubble Vision
30 bunte Nacktkiemer und Meeresnacktschnecken, Rotes Meer. Nudibranchia: Aeolids (Facelinidae, Flabellinidae, Tergipedidae), Dorids (Chromodorididae, Discodorididae, Gymnodorididae, Hexabranchididae, Phyllidiidae, Polyceridae) Headshield slugs / Cephalaspidea: Aglajidae Sap-sucking slugs / Sacoglossa: Plakobranchidae Sea Hares / Anaspidea: Aplysidae Nacktschnecken - Meeresschnecken ohne Gehäuse – kann man überall, zu jeder Jahreszeit und in allen Meerestemperaturen antreffen. Sie leben in flachen Meerestümpeln in Korallenriffen und einige haben sich sogar in der Tiefsee angesiedelt. Ihre Artenanzahl und Varietät erscheinen unendlich. Die meisten der farbenprächtigen Tiere sind tagaktiv und ein Lieblingsmotiv für Fotografen. Nacktkiemer gehören zu den farbenprächtigsten Tieren. Sea slugs are among the most colorful animals. Sea Slugs are incredibly amazing and diverse. From practising photosynthesis to baffling reproductive practises. Music: Schiller....Swan Lake
Views: 4204 Frank Ude
Take the PBSDS survey: https://to.pbs.org/2018YTSurvey Explore our VR slug and support us on Patreon! https://www.patreon.com/deeplook Nudibranchs may look cute, squishy and defenseless ... but watch out. These brightly-colored sea slugs aren't above stealing weapons from their prey. SUBSCRIBE to Deep Look! http://goo.gl/8NwXqt DEEP LOOK is a ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Explore big scientific mysteries by going incredibly small. The summer months bring low morning tides along the California coast, providing an opportunity to see one of the state’s most unusual inhabitants, sea slugs. Also called nudibranchs, many of these relatives of snails are brightly colored and stand out among the seaweed and anemones living next to them in tidepools. “Some of them are bright red, blue, yellow -- you name it,” said Terry Gosliner, senior curator of invertebrate zoology and geology at the California Academy of Sciences in San Francisco. “They're kind of designer slugs.” But without a protective shell, big jaws or sharp claws, how do these squishy little creatures get away with such flamboyant colors in a habitat full of predators? As it turns out, the nudibranchs’ colors serve as a warning to predators: These sea slugs are packing some very sophisticated defenses. And some aren’t above stealing weapons from their prey. Gosliner and Brenna Green and Emily Otstott, graduate students at San Francisco State University, were out at dawn earlier this summer searching tidepools and floating docks around the Bay Area. They want to learn more about how these delicate little sea slugs survive and how changing ocean temperatures might threaten their futures. Nudibranchs come in a staggering variety of shapes and sizes. Many accumulate toxic or bad-tasting chemicals from their prey, causing predators like fish and crabs to learn that the flashy colors mean the nudibranch wouldn’t make a good meal. --- What are nudibranchs? Nudibranchs are snails that lost their shell over evolutionary time. Since they don’t have a shell for protection, they have to use other ways to defend themselves like accumulating toxic chemicals in their flesh to make them taste bad to predators. Some species of nudibranchs eat relatives of jellyfish and accumulate the stingers within their bodies for defense. --- Why do nudibranchs have such bright colors? The bright colors serve as a signal to the nudibranch’s predators that they are not good to eat. If a fish or crab bites a nudibranch, it learns to associate the bad taste with the bright colors which tends to make them reluctant to bite a nudibranch with those colors in the future. --- What does nudibranch mean? The word nudibranch comes from Latin. It means naked gills. They got that name because some species of nudibranchs have an exposed ring of gills on their back that they use to breath. ---+ Read the entire article on KQED Science: https://www.kqed.org/science/1929993/this-adorable-sea-slug-is-a-sneaky-little-thief ---+ For more information: Learn more about Terry Gosliner’s work with nudibranchs https://www.calacademy.org/staff/ibss/invertebrate-zoology-and-geology/terrence-gosliner Learn more about Chris Lowe’s work with plankton http://lowe.stanford.edu/ Learn more about Jessica Goodheart’s study of nematocyst sequestration https://onlinelibrary.wiley.com/doi/full/10.1111/ivb.12154 ---+ More Great Deep Look episodes: From Drifter to Dynamo: The Story of Plankton | Deep Look https://youtu.be/jUvJ5ANH86I For Pacific Mole Crabs It's Dig or Die | Deep Look https://youtu.be/tfoYD8pAsMw The Amazing Life of Sand | Deep Look https://youtu.be/VkrQ9QuKprE ---+ See some great videos and documentaries from PBS Digital Studios! Why Are Hurricanes Getting Stronger? | Hot Mess https://youtu.be/2E1Nt7JQRzc When Fish Wore Armor | Eons https://youtu.be/5pVTZH1LyTw Why Do We Wash Our Hands After Going to the Bathroom? | Origin of Everything https://youtu.be/fKlpGs34-_g ---+ Follow KQED Science and Deep Look: Instagram: https://www.instagram.com/kqedscience/ Twitter: https://www.twitter.com/kqedscience KQED Science on kqed.org: http://www.kqed.org/science Facebook Watch: https://www.facebook.com/DeepLookPBS/ Patreon: https://www.patreon.com/deeplook ---+ About KQED KQED, an NPR and PBS affiliate in San Francisco, CA, serves Northern California and beyond with a public-supported alternative to commercial TV, Radio and web media. Funding for Deep Look is provided in part by PBS Digital Studios. Deep Look is a project of KQED Science, which is supported by the Templeton Religion Trust and the Templeton World Charity Foundation, the S. D. Bechtel, Jr. Foundation, the Dirk and Charlene Kabcenell Foundation, the Vadasz Family Foundation, the Gordon and Betty Moore Foundation, the Fuhs Family Foundation Fund and the members of KQED. #deeplook #nudibranch #seaslug
Views: 537857 Deep Look
What's your poison? The nudibranch sea slug devours the man o' war's stinging cells, then uses them for its own defense! ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta Nudibranch Sea Slugs | National Geographic https://youtu.be/nHVoV0MVwSc National Geographic https://www.youtube.com/natgeo
Views: 194745 National Geographic
100 bunte Nacktkiemer und Meeresnacktschnecken. Nudibranchia - Nudibranchs - Nacktkiemer: Aeolids - Fadenschnecken: Facelinidae, Trinchesiidae, Flabellinidae, Samlidae; Dendronotids - Baumschnecken: Bornellidae, Dendronotidae, Tethydidae; Arminaceans - Furchenschnecken: Proctonotidae; Dorids - Sternschnecken: Chromodorididae, Discodorididae, Gymnodorididae, Hexabranchididae, Phyllidiidae, Polyceridae Pleurobranchidea - Side-gilled slugs - Flankenkiemer: Pleurobranchidae Umbraculida - Umbrella slugs - Regenschirmschnecken: Tylodinidae Cephalaspidea - Headshield slugs - Kopfschildschnecken: Aglajidae Sacoglossa - Sap-sucking slugs - Saftsauger: Plakobranchidae Anaspidea - Sea Hares - See-Hasen: Aplysidae Nacktkiemer - Meeresschnecken ohne Gehäuse – kann man überall, zu jeder Jahreszeit und in allen Meerestemperaturen antreffen. Sie leben in flachen Meerestümpeln in Korallenriffen und einige haben sich sogar in der Tiefsee angesiedelt. Ihre Artenanzahl und Varietät erscheinen unendlich. Die meisten der farbenprächtigen Tiere sind tagaktiv und ein Lieblingsmotiv für Fotografen. Nacktkiemer gehören zu den farbenprächtigsten Tieren. Sea slugs are among the most colorful animals. Sea Slugs are incredibly amazing and diverse. From practising photosynthesis to baffling reproductive practises. Music: Schiller....Zeitgeist, Swan Lake
Views: 861 Frank Ude
The Portuguese Man-of-War is fifty times bigger than this nudibranch... a tiny sea slug. But in this David-vs-Goliath scenario, don't bet against the nudibranch. It can nibble away at the Man-of-War's deadly tentacles, and use their stingers for its own defense. ➡ Subscribe: http://bit.ly/NatGeoWILDSubscribe ➡ Get More World’s Weirdest: http://bit.ly/WorldsWeirdest #NatGeoWILD #WorldsWeirdest #SeaSlugs About World's Weirdest: A buffalo with three eyes, an exterminator who eats his day’s work, an elephant rampage through a restaurant…all very bizarre, all very real. These shocking and strange animal “viral” moments only found on World’s Weirdest. Each one-hour episode explores the most bizarre in the animal kingdom. Freaky Feasts wets our appetite for the weirdest animal meals ever. Oddities is a showcase for the most unusual animals. Sneak Attacks features the most shocking animal encounters ever. And let's spread a little shame on those animals that throw the rules away on Animals Behaving Badly. Get More National Geographic Wild: Official Site: http://bit.ly/NatGeoWILD Facebook: http://bit.ly/NGWFacebook Twitter: http://bit.ly/NGWTwitter Instagram: http://bit.ly/NGWInstagram About National Geographic Wild: National Geographic Wild is a place for all things animals and for animal-lovers alike. Take a journey through the animal kingdom with us and discover things you never knew before, or rediscover your favorite animals! Nudibranch Animal Profile http://animals.nationalgeographic.com/animals/invertebrates/nudibranch/Amazing Sting Defense | World's Weirdest https://youtu.be/sHg536CII2M Nat Geo Wild https://www.youtube.com/user/NatGeoWild
Views: 1224573 Nat Geo WILD
Sea slug, scientifically known as nudibranch, literally translates to “naked gill”. To put it simply they are sea snails without a shell. By losing their only defense mechanism, they have been forced to evolve and develop other defense systems. Some can blend in with their surroundings, others can get a bit more dangerous and use their toxic glands or stinging cells. From the deep mysterious waters, enjoy 10 sea slugs that look absolutely out of this world! ****************** Please Subscribe: https://www.youtube.com/channel/UC8S1L-XweZUW7JX60tbUAwQ ****************** Follow me on Twitter: https://twitter.com/GetSmartTv ****************** Music: www.bensound.com
Views: 5713 Get Smart TV
In this fun Blue World extra, we explore a small colorful mollusk known as a nudibranch. Jonathan Bird's Blue World is an Emmy Award-winning underwater science/adventure program that airs on public television in the United States. ********************************************************************** If you like Jonathan Bird's Blue World, don't forget to subscribe! Support us on Patreon! http://patreon.com/BlueWorldTV You can buy some Blue World T-shirts & Swag! http://www.blueworldtv.com/shop You can join us on Facebook! https://www.facebook.com/BlueWorldTV Twitter https://twitter.com/BlueWorld_TV Instagram @blueworldtv Web: http://www.blueworldTV.com ********************************************************************** There are all kinds of amazing animals in the ocean. Some of them are completely unknown by the average person. The nudibranch is one such curious animal. A nudibranch is basically a snail with no shell, sometimes called a sea slug. The bushy tuft on the back of this nudibranch is actually the animal’s gills, which is where nudibranchs get their name. Nudibranch means means “naked-gill.” There are thousands of species of nudibranchs in the world’s oceans in thousands of different color patterns, which makes them very popular with underwater photographers. But the bright coloration isn’t just designed to look cool. Scientists call it aposematic—it’s designed to warn predators that it won’t make a good meal. Most nudibranchs produce foul tasting toxins or acids in the form of a slime on their skin. Fish won’t eat them no matter how tempting they might look. Unfortunately, nudibranchs are not the fastest animals on the reef, and they are somewhat rare too. Finding a mate under such circumstances can be challenging. So nudibranchs are hermaphrodites, meaning each individual has both male and female organs. When any two nudibranchs of the same species meet up, they are always compatible because they are both male and female. They approach each other, extend sexual organs from the side of their bodies, and exchange both eggs and sperm with each other. Each will then go off and lay their fertilized eggs. This brightly colored nudibranch egg mass is produced by the equally brightly colored Spanish Dancer nudibranch. It is one of the largest nudibranchs on Pacific coral reefs, reaching the size of a cucumber. The Spanish Dancer gets its name from the way it avoids predators. When threatened, it can escape by swimming away like a flamenco dancer. The animal has little control over the direction it swims, but it gets up into the water column and away from the predator. Eventually, the nudibranch stops undulating and assumes a gliding position to parachute back down to the reef, hopefully out of harm’s reach. The Spanish Dancer also serves as a kind of magic carpet. It’s passenger: an Imperial shrimp. This is transportation that offers protection from predators, as well as a steady supply of food. The shrimp feeds on the poop of the nudibranch! In exchange for the free room and board, the shrimp keeps the tufted gills of the nudibranch clean. While the Spanish Dancer is big, some nudibranchs are bigger. The Lemon Peel Nudibranch found in the northern Pacific reachs a foot long, making this a small one! And while fish won’t eat it, people do. In the Russian Kuril Islands, it is considered a delicasy. Nudibranchs are found in all the world’s oceans, even in the freezing water around Antarctica! Nudibranchs are one of the great things about life in the ocean, where even a lowly Sea Slug can be a thing of beauty.
Views: 47227 BlueWorldTV
Sea Slugs are incredibly amazing and diverse. From practising photosynthesis to harvesting stingers from the Portuguese Man o' War to baffling reproductive practises, Sea Slugs are like real-life Pokemon. Subscribe to Animal Wire: http://bit.ly/1KJogk6 Check out his video on Sea Bunnies: https://youtu.be/LJ2w38R4vck More Nudibranch drawings by Danielle: http://ddufault.com/sci.html Subscribe for new episodes every Friday: http://bit.ly/1CWUwqa ----------- SOCIAL MEDIA https://twitter.com/MesozoicMuse https://www.facebook.com/LoveNatureTV https://instagram.com/lovenaturetv https://twitter.com/lovenature http://tv.lovenature.com/ For more of Danielle's drawings: http://www.ddufault.com/ ----------- Footage: Sea Bunnies - ほそだまさる - http://bit.ly/1UIMoYP Lobster & Sea Hare - Charles Derby ----------- CREDITS Executive Producer: Alex Sopinka Writer: Dr. Suzanne MacDonald Host: Danielle Dufault Producer & Co-Writer: Dylan Dubeau Camera & Editor & Animator & Co-Producer: Andrew Strapp ----------- Examining the nature of the beast.
Views: 398813 Animalogic
Sea slugs feeding and mating. Part 19 of my documentary, "Mucky Secrets", about the fascinating marine creatures of the Lembeh Strait in Indonesia. Watch the full 90-minute documentary at http://www.youtube.com/watch?v=nJMZ6reOB0E In this video we study how sea slugs (including nudibranchs) feed and mate. All known nudibranchs are carnivores. The biggest family of nudibranchs, the chromodoridids, feed exclusively on sponges. Most sea slugs have a ribbon-like tongue covered in microscopic teeth called a radula to help them consume their prey. The form of the radula varies greatly and is important as a basis for taxonomic classification. We see a pleurobranch, Pleurobranchus forskalii, a different type of sea slug, feeding on an ascidian, or "sea squirt", a type of tunicate. Nembrotha nudibranchs also feed on ascidians. We see a Nembrotha lineolata feeding on a blue club tunicate. The ascidian feeds by filtering plankton from the water with its delicate, blue, sieve-like interior enclosed in a clear outer sac, its tunic. The sea slug everts its proboscis, its oral tube, out of its mouth and, with ruthless efficiency, sucks this fleshy interior right through the tunic. The radula teeth enable the slug to deal with the tougher parts of the sea squirt's intestines. Most sea slugs are quite specific in their choice of food, and so they are often drawn towards the same place. This increases the chances of encountering others of the same species and finding a mate. As they have no vision, nudibranchs locate each other initially through smell then touch. During copulation, they line up their genitals which are on the right side of their body. All sea slugs are hermaphrodites and contain both male and female reproductive systems. During mating, each nudibranch receives sperm from the other. We see a pair of Nembrotha chamberlaini nudibranchs mating. The penis, which is off to the side, is covered in tiny, sharp barbs which lock it into the vagina, which is at the centre of the stalk. The male organs often mature before the female ones. Small nudibranchs with an immature female reproductive system can store the sperm they receive until they start producing fertile eggs. We also encounter a mating pair of Hypselodoris bullocki nudibranchs. Their genitals are also covered in tiny spines that anchor them together during copulation. After fertilisation, a mucus-bound ribbon of eggs is laid in a spiral, often on or near the species' food source. Most egg masses are toxic to predators and are abandoned by the parent. Hypselodorid nudibranchs often follow each other around, top to tail. The reason for this 'trailing', or "tailgating" behaviour is a mystery. It's thought to be a prelude to mating, but in some cases the trailing slug might simply be getting an easy ride in the search for food. There are English captions showing either the full narration or the common and scientific names of the marine life, along with the dive site names. The full Mucky Secrets nature documentary features a huge diversity of weird and wonderful marine animals including frogfish, nudibranchs, scorpionfish, crabs, shrimps, moray eels, seahorses, octopus, cuttlefish etc.. Thanks to Kevin MacLeod of http://www.incompetech.com for the music track, "Perspectives", which is licensed under a Creative Commons Attribution 3.0 Unported license. Thanks to the staff and keen-eyed divemasters of Two Fish Divers (http://www.twofishdivers.com), for accommodation, diving services and critter-spotting. The video was shot by Nick Hope with a Sony HVR-Z1P HDV camera in a Light & Motion Bluefin HD housing with Light & Motion Elite lights and a flat port. A Century +3.5 diopter was used for the most of the macro footage. I have more scuba diving videos and underwater footage on my website at: http://www.bubblevision.com I post updates about my videos here: http://www.facebook.com/bubblevision http://google.com/+bubblevision http://www.twitter.com/nicholashope http://bubblevision.tumblr.com Full list of marine life and dive sites featured in this video: 00:00 Nudibranch, Hypselodoris emma, Aer Perang 00:15 Nudibranch, Hypselodoris emma, TK 3 00:21 Nudibranch, Hypselodoris apolegma, Police Pier 00:28 Nudibranch, Hypselodoris whitei, Aw Shucks 00:33 Nudibranch, Chromodoris annae, Tanjung Kusu-Kusu 00:38 Nudibranch, Hypselodoris apolegma, Aer Perang 00:43 Pleurobranch, Pleurobranchus forskalii, Two Fish Divers house reef 00:59 Nudibranch, Nembrotha lineolata, Nudi Falls 01:55 Nudibranchs, Nembrotha chamberlaini & Nembrotha yonowae, TK 1 02:07 Nudibranch, Nembrotha chamberlaini, TK 1 03:20 Nudibranch, Hypselodoris bullocki, Critter Hunt 03:33 Nudibranch, Doriprismatica atromarginata, Nudi Falls 03:43 Nudibranch, Ceratosoma tenue, Aer Perang 03:53 Nudibranch, Hypselodoris tryoni, Nudi Falls
Views: 89938 Bubble Vision
The famous Spanish Dancer nudibranch doing what this species of nudibranch is famous for; free swimming. Video taken on snorkel by Chris Fluffy Jones. We believe the best snorkeling in the world is a coral reef adventure on a Great Barrier Reef snorkeling trip with Wavelength Marine Charters because coral reefs on the great barrier reef australia are perfect for snorkeling rather than scuba diving due to their shallow nature. Great barrier reef diving is more for the scuba diving experience rather than seeing coral reefs. Unlike snorkeling in hawaii or snorkeling in cozumel or snorkeling in bahamas or snorkeling in sharm el sheikh, expert snorkeling tips and snorkeling how to information is given on the boat. Snorkelling great barrier reef is the best snorkeling with sharks, snorkeling with dolphins, snorkeling with turtles and snorkeling with stingrays. Its like snorkelling in a coral reef aquarium.
Views: 218960 WavelengthIII
Glaucus atlanticus (common names include the sea swallow, blue angel, blue glaucus, blue dragon, blue sea slug and blue ocean slug) is a species of small, blue sea slug, a pelagic aeolid nudibranch, a shell-less gastropod mollusk in the family Glaucidae. These sea slugs are pelagic: they float upside down by using the surface tension of the water to stay up, where they are carried along by the winds and ocean currents. Glaucus atlanticus is camouflaged: the blue side of their body faces upwards, blending in with the blue of the water. The silver/grey side of the sea slugs faces downwards, blending in with the silvery surface of the sea. Glaucus atlanticus feeds on other pelagic creatures, including the venomous siphonophore, the Portuguese man o' war. This sea slug stores stinging nematocysts from the cnidarian within its own tissues as defense against predation. Humans handling the slug may receive a very painful and potentially dangerous sting. Taxonomy This species looks similar to, and is closely related to, Glaucus marginatus, which is now understood to be not one species, but a cryptic species complex of four separate species that live in the Indian Ocean and Pacific Ocean. Description At maturity Glaucus atlanticus can be up to 3 centimetres (1.2 in) in length. It is silvery grey on its dorsal side and dark and pale blue ventrally. It has dark blue stripes on its head. It has a flat, tapering body and six appendages that branch out into rayed, finger-like cerata. The radula of this species bears serrated teeth. Buoyancy and coloration With the aid of a gas-filled sac in its stomach, G. atlanticus floats at the surface. Due to the location of the gas sac, this species floats upside down. The upper surface is actually the foot (the underside in other slugs and snail), and this has either a blue or blue-white coloration. The true dorsal surface (carried downwards in G. atlanticus) is completely silver-grey. This coloration is an example of countershading, which helps protect it from predators that might attack from below and from above. The blue coloration is also thought to reflect harmful UV sunlight. Distribution and habitat This nudibranch is pelagic, and there is some evidence that it occurs throughout the world's oceans, in temperate and tropical waters. It has been recorded from the east and south coasts of South Africa, European waters, the east coast of Australia, and Mozambique. Glaucus atlanticus was recently found in the Humboldt Current ecosystem in Peru in 2013, and off Andhra Pradesh in India in 2012. This is in line with the known habitat characteristics of the species: they live in warm temperate climates in the Southern Pacific, and in circumtropical and Lusitanian environments. Before finding Glaucus atlanticus off Andhra Pradesh, these nudibranchs were documented as having been seen in the Bay of Bengal and off the coast of Tamil Nadu, India, over 677 kilometers apart. Glaucus atlanticus was also recently found off Bermuda in January 2016. Although these sea slugs live on the open ocean, they sometimes accidentally wash up onto the shore, and therefore they may be found on beaches. Life history and behavior G. atlanticus preys on other larger pelagic organisms. The sea slugs can move toward prey or mates by using their cerata to make slow swimming movements. They are known to prey on the dangerously venomous Portuguese man o' war (Physalia physalis); the by-the-wind-sailor (Velella velella); the blue button (Porpita porpita); and the violet snail, Janthina janthina. Occasionally, individuals attack and eat other individuals in captivity. G. atlanticus is able to feed on the Portuguese man o' war due to its immunity to the venomous nematocysts. The slug consumes the entire organism and appears to select and store the most venomous nematocysts for its own use. The nematocysts are collected in specialized sacs (cnidosacs) at the tip of the animal's cerata, the thin feather-like "fingers" on its body. Because Glaucus concentrates the venom, it can produce a more powerful and deadly sting than the Man o' War on which it feeds. Like almost all heterobranchs, Glaucus is a hermaphrodite, having both male and female reproductive organs. Unlike most nudibranchs, which mate with their right sides facing, sea swallows mate with ventral sides facing. After mating, both animals produce egg strings. Sting The Glaucus atlanticus is able to swallow the venomous nematocysts from siphonophores such as the Portuguese man o' war, and store them in the extremities of its finger-like cerata. Picking up the animal can result in a painful sting, with symptoms similar to those caused by the Portuguese man o' war.
Views: 10616 Nature’s Production
This video is a little different, my 2 cents on sea slugs in this hobby. I would have loved to use footage of sea slugs in this video, but can't due to copyright reasons Subscribe for more ►http://www.youtube.com/subscription_center?add_user=MarineMetaTV Follow me on twitter ► https://twitter.com/MarineMetaTV Follow me on twitch ► https://www.twitch.tv/dendeviltv Support me on patreon ►https://www.patreon.com/user?alert=2 For business inquires ► [email protected] Music used in video ► https://www.youtube.com/watch?v=mv-sbDO2ya0 Last Summer by Ikson: http://www.soundcloud.com/ikson Bay Breeze by FortyThr33 https://soundcloud.com/fortythr33-43 Creative Commons — Attribution 3.0 Unported— CC BY 3.0 http://creativecommons.org/licenses/b… Lensko - Circles [NCS Release] https://youtu.be/ztvIhqVtrrw https://soundcloud.com/lensko https://www.facebook.com/Lenskoofficial https://www.youtube.com/user/LenskoOf... Music promoted by Audio Library https://youtu.be/n2oTA5JSk80 Video Credits: Licensed by: Pond 5 Licensed by: Video Hive Thanks for watching!
Views: 158 MarineMetaTV
Variation of nudibranch, flatworms and sea slugs. filmed in Indonesia, North Sulawesi, Bangka Island, Lembeh Strait. HD
Views: 2908 eyeseawonders
The nudibranch is a cannibalistic sea slug. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta Learn another animal fun fact in “Gecko Feet: How Do They Stick to Walls?” https://www.youtube.com/watch?v=uhfXbSSrabw This Sea Slug Eats Its Own Kind | National Geographic https://youtu.be/NemhE5-GZis National Geographic https://www.youtube.com/natgeo
Views: 64481 National Geographic
Subscribe to our channel https://www.youtube.com/c/AllFiveOceans?sub_confirmation=1 This Sea Slug or Nudibranch [[Hypselodoris apolegma] is found in the coral reefs of the Western Pacific. They are mollusks without shells. Theses nudibranches have brilliant color and striking looks. Look they have two horn like things on their head. These are actually oral tentacles. The pair actually works as the nose of the animal. Look at the yellow tales. These things are cerata. Cerata is the weapon of attack. These are full with stinging cells.
Views: 1615 All Five Oceans
On my dive trip at Whispering Palms Island Dive Resort, Sipaway Island, approx. 3 miles off Negros in the Philippines, my support divers found these interesting Sea Slugs (Nudibranchs) and a lot of other aquatic life to video.This is a really fantastic place for Scuba Diving or Snorkeling.
Views: 88 lonenightdiver
Something I've never seen before. Took me some research to figure out what it was. It's a sea slug (nudibranch). It interacts with a tiny fish part way through. It was videoed in Thailand along a river. The black spot / hole in the middle of it's back is a snorkel I believe.
Views: 195 tsbrownie
Check out these two species of Nudibranchs aka Sea Slugs that look simply out of this world. They have a very short lifespan and very little is know about their eating habits so I don't recommend it for your marine aquarium. You can find more information on the link below. Please do LIKE, SHARE and SUBSCRIBE for more videos. Your support means a lot :) Click on the link below for more information on Nudibranchs https://ocean.si.edu/ocean-life/invertebrates/collage-nudibranch-colors Credits Music: Stranger Danger & Seductress by Francis Preve Reese Peace Riddim by Konard OldMoney Video: Blue Mandarin Archives
Views: 66 Blue Mandarin
Get ready for some slime on this episode of “Scuba Sam’s World.” Meet one of the prettiest sea slugs in the ocean, the nudibranch. Learn how this jelly-bodied mollusk uses its tentacles to detect prey and can rear up just like a cobra and strike! ➡ Subscribe for more National Geographic Kids videos: http://bit.ly/SubscribeToNatGeoKids ➡ Check out our playlist: http://bit.ly/WatchMoreScubaSamsWorld ➡ Visit our website: http://bit.ly/NGKScubaSamsWorld ➡ Get the book: http://bit.ly/NGKOceanAnimals About Scuba Sam's World: Take a deep dive and learn all about the beloved sea animals in our oceans! Check out our other fun series!: Amazing Animals: http://bit.ly/WatchMoreAmazingAnimals Awesome Animals: http://bit.ly/WatchMoreAwesomeAnimals Animal LOL: http://bit.ly/WatchMoreAnimalLOL Party Animals: http://bit.ly/WatchMorePartyAnimals Weird But True! Fast Facts: http://bit.ly/WatchMoreWBTFastFacts What Sam Sees: http://bit.ly/WatchMoreWhatSamSees More National Geographic Kids: Visit our website for more games, photos, and videos: http://bit.ly/NatGeoKidsSite Facebook: http://bit.ly/NGKFacebook Twitter: http://bit.ly/NGKTwitter About National Geographic Kids: Nat Geo Kids makes it fun to explore your world with weird, wild, and wacky videos! Check back each day for a new themed video release: Science Monday, Animal Tuesday, Weird But True Wednesday, Exploration Thursday, Fun Fact Friday, Wild Saturday, and Spotlight Sunday. Videos featuring awesome animals, cool science, funny pets, and more, are made just for curious kids like you. So pick a topic you love and start watching today! Slimy Sea Slug | Scuba Sam's World https://youtu.be/cy1aVeYv5Ys National Geographic Kids https://www.youtube.com/NatGeoKids
Views: 3128 National Geographic Kids
Egypt Red Sea / Ägypten Rotes Meer. Nudibranchs: Glossodoris hikuerensis, Flabellina rubrolineata, Chromodoris quadricolor, Phyllidia rueppelii, Ptraeolidia janthina, Gymnodoris inomata, Hexabranchus sanguineus, Nembrotha megalocera, Trinchesia sibogae, Halgerda willeyi, Flabellina bilas, Flabelina bicolor, Phyllidiella pustulosa, Gymnodoris striata, Headshield slug: Chelidonura flavolabata Sea slugs are among the most colorful animals. Sea Slugs are incredibly amazing and diverse. From practising photosynthesis to baffling reproductive practises. Nacktschnecken - Meeresschnecken ohne Gehäuse – kann man überall, zu jeder Jahreszeit und in allen Meerestemperaturen antreffen. Sie leben in flachen Meerestümpeln in Korallenriffen und einige haben sich sogar in der Tiefsee angesiedelt. Ihre Artenanzahl und Varietät erscheinen unendlich. Die meisten der farbenprächtigen Tiere sind tagaktiv und ein Lieblingsmotiv für Fotografen. Nacktkiemer gehören zu den farbenprächtigsten Tieren. Music: Schiller....Nachtflug
Views: 867 Frank Ude
25 Nacktkiemer und Meeres Nacktschnecken, Mittelmeer (Kroatien Insel Cres & Spanien Cadaques) Nudibranchs / Nudibranchia: Aeolids (Facelinidae, Flabellinidae), Arminaceans (Zephyrinidae), Dendronotids (Tethydidae), Dorids (Chromodorididae, Dendrodorididae, Dorididae,, Phyllidiidae), Sap-sucking slugs / Sacoglossa: Plakobranchidae Sea Hares / Anaspidea: Aplysidae Umbrella Shells / Umbraculidea: Tylodinidae Nacktschnecken - Meeresschnecken ohne Gehäuse – kann man überall, zu jeder Jahreszeit und in allen Meerestemperaturen antreffen. Sie leben in flachen Meerestümpeln in Korallenriffen und einige haben sich sogar in der Tiefsee angesiedelt. Ihre Artenanzahl und Varietät erscheinen unendlich. Die meisten der farbenprächtigen Tiere sind tagaktiv und ein Lieblingsmotiv für Fotografen. Nacktkiemer gehören zu den farbenprächtigsten Tieren. Sea slugs are among the most colorful animals. Sea Slugs are incredibly amazing and diverse. From practising photosynthesis to baffling reproductive practises. Music: Schiller....Zeitgeist
Views: 1117 Frank Ude
Subscribe on YouTube: http://bit.ly/U8Ys7n ScienceTake: In the mating game, males and females can have different agendas even when they inhabit the same body. Read the story here: http://nyti.ms/IggSxe Subscribe to the Times Video newsletter for free and get a handpicked selection of the best videos from The New York Times every week: http://bit.ly/timesvideonewsletter Subscribe on YouTube: http://bit.ly/U8Ys7n Watch more videos at: http://nytimes.com/video --------------------------------------------------------------- Want more from The New York Times? Twitter: https://twitter.com/nytvideo Instagram: http://instagram.com/nytvideo Facebook: https://www.facebook.com/nytimes Google+: https://plus.google.com/+nytimes Whether it's reporting on conflicts abroad and political divisions at home, or covering the latest style trends and scientific developments, New York Times video journalists provide a revealing and unforgettable view of the world. It's all the news that's fit to watch. On YouTube. The Unusual and Extreme Mating Behavior of Sea Slugs http://www.youtube.com/user/TheNewYorkTimes
Views: 14369 The New York Times
On this episode of Animal Fact Files discover the nudibranchs also known as the butterflies of the ocean. You can learn more on: Twitter - https://twitter.com/animalfactfiles Facebook - https://facebook.com/animalfactfiles/ --- We always do what we can to be as accurate as possible but we're only human; if you catch a mistake please let us know and provide a link for verification! --- All images, videos and sound effects used herein are 1) public domain, 2) used under a Creative Commons license*, 3) used with the express permission of the copyright holder, or 4) used under the parameters of Fair Use law. Credits via Flickr: q phia - https://www.flickr.com/photos/q-phia/33931838296 Kris-Mikael Krister - https://www.flickr.com/photos/[email protected]/39073340595; https://www.flickr.com/photos/[email protected]/28191566479; https://www.flickr.com/photos/[email protected]/39971058431 Steve Childs - https://www.flickr.com/photos/steve_childs/3704072124; https://www.flickr.com/photos/steve_childs/3166548624; https://www.flickr.com/photos/[email protected]/2646311458 Doug Beckers - https://www.flickr.com/photos/dougbeckers/6779236759* prilfish - https://www.flickr.com/photos/silkebaron/4727412681; https://www.flickr.com/photos/silkebaron/24843223282; https://www.flickr.com/photos/silkebaron/41441254965 EOL Learning and Education Group (Patrick Krug) - https://www.flickr.com/photos/[email protected]/5884159357* Elias Levy - https://www.flickr.com/photos/elevy/6851464814 Jerry Kirkhart - https://www.flickr.com/photos/jkirkhart35/5843469215; https://www.flickr.com/photos/[email protected]/5161166105 Credits via Wiki Users: Bernard Picton - https://commons.wikimedia.org/wiki/File:B150318_Goniobranchus_reticulatus.jpg; https://commons.wikimedia.org/wiki/File:20170204-B179660.jpg VS - https://commons.wikimedia.org/wiki/File:Tambja_marbellensis.jpg Robert Agarwal - https://commons.wikimedia.org/wiki/File:Eubranchus_rustyus_from_Santa_Cruz,_California.jpg Frode Steen - https://commons.wikimedia.org/wiki/File:Goniaeolis_typica_Sars_M_1861_01.jpg Sébastien Vasquez - https://commons.wikimedia.org/wiki/File:Dendrodoris_fumata.jpg Nhobgood - https://commons.wikimedia.org/wiki/File:Kubaryana_eating_clavelina.jpg; https://en.wikipedia.org/wiki/File:Chromodoris_nudibranch_komodo.jpg Other attributions: Nudibranch Marine Discovery Productions (Peter van Rodijnen); Stichting Natuurbeelden - https://www.openbeelden.nl/media/808540; https://www.openbeelden.nl/media/812243; https://www.openbeelden.nl/media/808559; https://www.openbeelden.nl/media/810814; https://www.openbeelden.nl/media/811894; https://www.openbeelden.nl/media/810472; https://www.openbeelden.nl/media/813579 carmsie - https://freesound.org/people/carmsie/sounds/329915/ Websites used for research collection: https://ocean.si.edu/ocean-life/invertebrates/collage-nudibranch-colors https://www.livingoceansfoundation.org/a-colorful-defense/ https://www.thoughtco.com/facts-about-nudibranchs-2291859 https://www.britannica.com/animal/nudibranch http://www.nhm.ac.uk/discover/nudibranchs-psychedelic-thieves-of-the-sea.html https://www.nationalgeographic.com/animals/invertebrates/group/nudibranchs/ https://www.hakaimagazine.com/videos-visuals/nudibranchs-armed-and-fabulous/ https://www.sciencealert.com/scientists-have-described-five-new-nudibranchs-that-look-stranger-than-ever https://www.cbsnews.com/news/nature-up-close-nudibranchs-are-just-weird-mollusks/ https://www.sciencedaily.com/releases/2018/10/181029102807.htm https://www.nationalgeographic.com/animals/2018/07/solar-powered-photosynthetic-sea-slugs-in-decline-news/ https://www.earthtouchnews.com/wtf/wtf/this-is-a-parasitic-sea-slug-that-glows-in-the-dark/ https://news.nationalgeographic.com/2015/07/150723-sea-slug-nudibranch-sea-bunny-ocean-animals-science/ https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1096-3642.1966.tb00082.x https://link.springer.com/article/10.1007/BF00391526 https://www.sciencedirect.com/science/article/pii/0022098174900276 http://www.seaslugforum.net/find/predrecord http://www.seaslugforum.net/find/6464 https://www.dive-the-world.com/creatures-nudibranchs.php http://www.seaslugforum.net/lifespan.htm http://www.seaslugforum.net/find/16633 http://www.seaslugforum.net/find/4558 http://www.seaslugforum.net/find/3086 http://www.marinespecies.org/aphia.php?p=taxdetails&id=1762 *you can find information about all the different types of CC licenses here: https://creativecommons.org/ **changes were made to the original
Views: 151 Animal Fact Files
The caption says it all. I discovered the notorious and obnoxious coral eating NudiBranch. Luckily i found it before he ate up the whole colony. *After taking this video, When i actually removed the colony from the water i found 3 more Nudibranchs on the underside of the colony, I didn't see any eggs or anything. I also inspected the other colonies in the tank and i didn't see anymore. Fingers crossed that was all of them and i pray they didn't lay eggs anywhere.*
Views: 506 Thereefkid25
Welcome to another episode of Natural World Facts! This fact file is all about the Sea Slug in the series Ocean Life. Natural World Facts is a channel dedicated to bringing you fascinating facts about our natural world, and the wonderful animals that we share it with. Subscribe for more videos! Leave a suggestion in the comments for what animal you would like to learn about next. OUR WEBSITE: http://goo.gl/Ngj5V6 TWITTER: http://goo.gl/U4T8JX
Views: 1866 Natural World Facts
The body of Trytonia lineata is translucent white, but sometimes a pinkish hue is present. There are two white lines that run from the base of the rhinophores, down the back and unite at the base of the tail. The head bears 4 oral processes that are tipped with white pigment. There may be up to 6 pairs of arborescent gills on the back of the animal. Adults may reach 34mm in length. Recorded on the west coast of Ireland. Thanks for watching. Music - part of "Realization" - Hanu Dixit - YouTube Audio Library ******************************************************************************************* Please feel free to SHARE this but copying or duplicating of this material is NOT allowed. ******************************************************************************************* Don't forget to check the full playlist: https://www.youtube.com/watch?v=WBacsYVO_AU&list=PLvc-pCBS5JwNn-_n1mM-_GiHF8l2Du614 and visit the official website https://www.sealifeireland.com/
Views: 125 Mariusz Tyburski
Nudibranch Sea Slug Chromodoris underwater Feeding on Hydroid
Views: 2930 RobertYin1
This beautiful nudibranch (Elysia diomedea) found in a tide pool on Playa Carbon on the Pacific coast of Costa Rica. This species of nudibranch are one of the few marine animals that are able to photosynthesise. Incredibly, when this animal feeds on algae, some of the chloroplasts that it ingests remain in its tissues. It is then able to make use of the energy produced by the chloroplasts as they continue to photosynthesize. Because of this, the nudibranch is commonly found in shallow sunlit waters with this parapodia fanned out.
Views: 512 The Wandering Biologist
A collection of some of the nudibranchs and sea slugs observed while diving in the Philippines (Southern Leyte) In order of appearance: Goniobranchus (Formerly Chromodoris) Coi Asteronotus sp Chelidonura amoena Chromodoris willani Phyllodesmium briareum Berthella mertensi Glossodoris cincta See more at Joelbrown229.portfoliobox.me
Views: 195 Joel Brown
Citizen scientists have discovered a roving Asian nudibranch in the San Francisco Bay. - - - The California Academy of Sciences is the only place in the world with an aquarium, planetarium, natural history museum, and four-story rainforest all under one roof. Visit us online to learn more and to get tickets: http://www.calacademy.org. Connect with us! • Like us on Facebook: http://bit.ly/CASonFB • Follow us on Twitter: http://bit.ly/CASonTwitter • Add us on Google+: http://bit.ly/CASonGoogle
Views: 7181 California Academy of Sciences
Nudibranch/Sea slug/Sea hare (marine shell-less molluscs)
Views: 54 FishLife
Sea slug on the line.Sea slug is a common name used for several different groups of saltwater snails that either lack a shell or have only an internal shell. It is a paraphyletic name used for various lineages of marine gastropod molluscs that are either not conchiferous (shell-bearing) or appear not to be. The phrase "sea slug" is often applied to nudibranchs (many members of which are colorful and are a noticeable part of the underwater fauna), sea hares, the sacoglossans, various families of bubble snails (Cephalaspidea), the sorbeoconch family Pterotracheoidea, the pulmonate (air-breathing) sea slug family Onchidiidae, and others. Sea cucumbers are also sometimes referred to as sea slugs, although they are in fact echinoderms.
Views: 251 edwardchandler
Mary Anne Pedoto of Dive Goddess Videos films a nudibranch underwater. Often called some call them sea slugs, they're of the order Dorididae, and the common name is Red-Lined Kentrodoris - scientific name Kentrodoris rubescens. ©2012 Dive Goddess Videos
Views: 155 DiveGoddessVideos
Cayman waters have many different species of Sea Slugs and Nudibranchs. Here are three of the most common ones ranging in size from about .5 inches to 2 inches in length. Lettuce Leaf Sea Slug, Painted Elysia's and Purple Crowned Sea Goddess's. Beautiful!!!!
Views: 216 Ocean Frontiers Dive Shop
Sea slug is a common name for some marine invertebrates that more or less resemble terrestrial slugs. Most creatures known as sea slugs are actually snails, i.e. they are sea snails (marine gastropod mollusks) that over evolutionary time have seemingly lost their shells, due to having a greatly reduced or internal shell. The name "sea slug" is most often applied to nudibranchs, as well as to a paraphyletic set of other marine gastropods without obvious shells.
Views: 18 Syed Abbas
Views: 1089 techjock