10428). Despite many people seeing this species as exotic it is found in British waters to the south and the west of the British Isles with the western English Channel, Celtic sea and waters off the c… The marbled electric ray, also known as the marbled torpedo ray, is one of many ray species that will literally leave prey in shock. A marbled electric ray (torpedo marmorata) was caught in Irish waters during cray fishing off Mutton island, Co Clare, by skipper Thomas Galvin Marbled electric rays are not commercially important, so are often discarded back at sea if caught. Marbled electric ray (Torpedo marmorata) Bouley Bay, Jersey, British Channel Islands. It has a wide distribution, being found in warm and temperate waters off the coasts of North and South America, around Africa and throughout the Mediterranean. The upper surface is pale brown with darker brown mottling and the underside is creamy-white. Taking a walk on the beach and looking into the rock pools, I found this Marbled Electric Ray (Torpedo sinuspersici) swimming in it. Catch rates and population trends are hard to assess across the ray’s range. Electric rays are unique from other rays in that they lack venomous scales or barbs. In rocky reefs and seagrass beds, the marbled electric ray buries itself in muddy bottoms during the daylight hours. Sign our petition to tell GrubHub to take shark fin off the menu now – before the ocean’s most iconic predators disappear. The marbled electric ray being the better known of them all, possibly due to its striking markings giving it a greater prominence in people's minds rather than the dull colours of other family members. Description: The marbled electric ray has a rounded,disc-like body with smooth skin and a short, thick tail with a large tail fin. This benthic fish inhabits rocky reefs, seagrass beds, and sandy and … In Latin, Torpedo is derived from “torpinus,” which refers to the numbing effect of the animal’s electric shock on other animals.2. Availability World wide . Torpedo marmorata has a round body with a thin tail. +1.808.938.5377 info@blueplanetarchive.com blueplanetarchive@gmail.com. The Marbled Electric Ray preferably lives close to the coast, on sandy ground down to a depth of 400m, but you can also find it on rocky ground sometimes. Marbled Electric Ray. Haftungsausschluss Torpedo marmorata lives solitaire and feeds on small fish and crustaceans. Function i. Insulin decreases blood glucose concentration. CMFRI News Letter 118, 8. When threatened the Marbled Torpedo Ray will swim off the bottom and curl its body into a circle thus presenting its attacker with the area that emits its high voltage shock. Reviewed-Annotation score: -Experimental evidence at protein level i. The black and brown speckled skin of these rays, resembling dark marbled floors, is ideal for camouflaging against the seafloor habitats where they live. Sign up today to get weekly updates and action alerts from Oceana. 5. The marbled electric ray has a mottled brown coloration on the bod… The marbled electric ray (Torpedo marmorata) is a species of electric ray in the family Torpedinidae found in the coastal waters of the eastern Atlantic Ocean from the North Sea to South Africa. This benthic fish inhabits rocky reefs, seagrass beds, and sandy and … trusted. Add to lightbox; Add to order; E-mail . CMFRI News Letter 118, 8. Starting off with an electrifying start, this ray goes by more than just its common name of Marbled Electric Ray. It also occurs offshore down to depths of 130 m. It feeds on bony fishes and can deliver a strong electric discharge, which is used to stun pray and for defense. Part of. Equipped with electric organs, this ray is an advanced ambush predator whose mottled skin color renders it nearly invisible to unsuspecting eyes. Sailors for the Sea developed the KELP (Kids Environmental Lesson Plans) program to create the next generation of ocean stewards. Anonymous (2008) Marbled electric ray, Torpedo sinuspersici noticed in Malabar coast. 4. Marbled Electric Ray Torpedo marmorata Risso 1810. collect. Marbled electric ray (Torpedo marmorata) Bouley Bay, Jersey, British Channel Islands. It accelerates glycolysis, the pentose phosphate cycle, and glycogen synthesis in liver. At night, the marbled electric ray departs from its hiding spot to forage for prey. Marbled electric rays are also known as torpedo rays because of their scientific name Torpedo marmorata. Then, the ray jumps on prey while emitting electrical shocks to stun it. Another common name, marbled electric ray, is not to be confused with Torpedo marmorata. Marbled electric rays are commonly found in the eastern Atlantic Ocean bordering Africa up to Norway, as well as parts of the Mediterranean Sea. … At birth, young marbled electric rays measure less than six inches on average, but already possess fully functional electric organs to capture prey. A species similar in appearance to the marbled electric ray is the Atlantic torpedo (T. nobiliana), however the two species are easy to distinguish from each other by their coloration. Its distribution area also extends in the eastern Atlantic from the British Isles to South Africa and it is also very common in the Mediterranean Sea. As an ambush predator, the marbled electric ray will wait patiently in the dark hours of the night until fish, such as gobies, mackerel or damselfish, swim pass. Stuns its prey by discharging electricity that is stored in large kidney shaped muscle like organs in the pectoral fins. Instead, electric rays generate a strong, electric discharge from massive and highly specialized electrogenic organs situated at the base of the pectoral fins. Its colour is light brown with dark spots. Function i. Voltage-gated chloride channel. When diving in the Canaries it is frequently observed, especially in the winter months. First record of the marbled electric ray, Torpedo sinuspersici off Gujarat, north-west coast of India The muscles of the pecto-ral fins (wings) are modified to generate electrical discharg-es of up to 50 V with an output of close to 1 kW (note that these stats are not specific to this species, but the group as a whole). It is found in the Indian Ocean, but may represent a species flock of several local endemic species. Equipped with electric organs, this ray is an advanced ambush predator whose mottled skin color renders it nearly invisible to unsuspecting eyes. Can produce electric discharges of up to 200 volts; EOD frequency up to 600 Hz. It increases cell permeability to monosaccharides, amino acids and fatty acids. mattk1979 has uploaded 13576 photos to Flickr. This website uses cookies. Get a quote; Buy a print; Caption. Sue Daly. We have already protected nearly 4 million square miles of ocean and innumerable sea life - but there is still more to be done. Marbled electric ray Add your observation in Fish Watcher. During the day they are mostly buried in the sand completly, while they go hunting at night. Part of. http://ow.ly/HoEaH, Cephalopods, Crustaceans, & Other Shellfish, Oceana Wins Lawsuit to Protect Overfished Dusky Sharks, Arabian Sea sharks may be the most threatened in the world, Less than 15 days left this Congress to help sharks, Oceanic Whitetip First Shark Listed as “Threatened” in the Continental U.S. Atlantic. 12 Sep 2014 12:00 am. Click here or below to download hands-on marine science activities for kids. 7. A field guide to the elasmobranchs of south-east Arabia. May be involved in cell-cell interactions. Photographer. The Marbled Electric Ray (T. marmorata) is a warm-water Mediterranean species which has rarely been recorded northwards of the English Channel (Quigley 2020). While there are around twenty ray species which are capable of giving an electric shock Torpedo nobiliana is the largest and the most powerful. MARBLED ELECTRIC RAY This is one of at least 17 species in which the body is a round disc with a small, rounded tail. This channel is thought to ensure the high conductance of the non-innervated membrane of the electrocyte necessary for efficient current generation caused by sodium influx through the acetylcholine receptor at the innervated membrane This fish has a small mouth. The Marbled Electric Ray is found in the coastal waters of the eastern Atlantic Ocean from the North Sea to South Africa and all around the Mediterranean Sea. Torpedo marmorata (Marbled electric ray) Status. Photographer. Inshore, the Marbled Electric Ray inhabits sandy bottoms and coral areas, and is often buried in sand. They give birth to 5-32 pups. Also known as the Marbled Torpedo Ray and Spotted Torpedo, it’s a ray in the Torpedinidae family. Marbled electric rays can be found anywhere from 33 to 328 feet (10 to 100 m) deep. MS TS POV Marbled electric ray (Torpedo marmorata) swimming near shipwreck in Indian ocean / Sri Lanka - This high-quality Rights Managed stock shot in HD from the Marbled Electric Ray / Far East / Sri Lanka stock footage collection is ready for instant licensing and customized download. Marbled electric ray {Torpedo marmorata} Jersey, Channel Is, UK. The two dorsal fins are located on the tail, they are almost equal in size and are close together. Explore mattk1979's photos on Flickr. Suite C2-300 Kailua Kona, HI 96740 USA Reviewed-Annotation score: -Experimental evidence at protein level i. It is distinguishable from other Torpedo species in its range by its ornate dorsal coloration. Both species are relatively easy to tell apart. Electric rays are best known for their highly specialized electrogenic organs. Because of this ray’s formidable demeanor, few other predators of the sea dare to hunt electric rays. Impressum Function i. Terminates signal transduction at the neuromuscular junction by rapid hydrolysis of the acetylcholine released into the synaptic cleft. Marbled Electric Ray (Torpedo marmorata) Torpedo marmorata belongs to the family Torpedinidae, from the order Torpediniformes, class Chondrichthyes, phylum Chordata and kingdom Animalia. Rights Royalty Free Rights Managed. Marbled electric rays can produce up to 200 volts of electric discharge at a time. Quellen Torpedo marmorata (Marbled electric ray) Status. Their electrical organs develop already when they weigh about 1g and are ready for use even before birth. The mouth width of this individual was 41 mm. The Marbled Electric Ray, also known as Spotted Torpedo, Marbled Torpedo or Torpedo Ray, is a species in the family of the Torpedinidae and thus belongs to the subclass of the Elasmobranchii. Kontakt Female marbled electric rays are larger than males, growing to a maximum length of 2 feet (0.6 m), while males grow to be 1.2 feet (0.4 m) long. Online Date. Distinctive Features The marbled electric ray has a rounded disc and a short thick tail with a large caudal fin. These shocks may produce a charge up to 200 volts, instantly stunning or killing prey before the ray can distend its jaw for swallowing. Online Date. It can be distinguished from the electric ray Tetronarce nobiliana by the colouration which is marbled pale and dark brown in the marbled electric ray and dark greyish-blue to brown in Tetronarce nobiliana. The fish stuns prey with electricity generated by modified muscle cells located in the anterior and proximal portion of the pectoral fins. 1. Marbled electric rays are generally found in waters no more than 100 feet deep. Oceana joined forces with Sailors for the Sea, an ocean conservation organization dedicated to educating and engaging the world’s boating community. provider any provider CalPhotos Flickr BHL iNaturalist Fishbase Wikimedia Commons Barcode of Life Data Systems Freshwater and Marine Image Bank U Washington. 1 2; 3; Last » cc-by-nc-4.0. A great way to get involved in protecting #oceans: Join Oceana as a Wavemaker & sound off on important issues! If you continue to use the website, we assume your consent. Torpedo marmorata (Marbled electric ray) Status. 01473793. It can be identified by the long, finger-like projections on the rims of its spiracles, as well as by its dark brown mottled color pattern, though some individuals are plain-colored. It can emit an electrical voltage of up to 220V to stun its prey. The conservation status of the marbled electric ray remains data deficient as defined by the IUCN Red List, but these rays are known to be a product of bycatch in some trawl fisheries and bottom longlines. The electric organs of marbled electric rays are functional before the rays are born and can be used to stun prey the moment they’re born.1. Blue Planet Archive LLC 77-6425 Kuakni Hwy. Sue Daly. overview; data; media; articles; maps; names; license any license CC-BY CC-BY-NC CC-BY-NC-SA CC-BY-SA No copyright. Sitemap, * = externnal links, partly Affiliatelinks/Werbelinks, © 2016 - 2020 by Ronny Kreuzberg - If interested in images message: ronny@diving-canary-islands.com, Spotted Bumblebee Shrimp - Gnathophyllum elegans. Image number . It is about 30cm in length from nose to tail tip. 3. We are restoring the world’s wild fish populations to serve as a sustainable source of protein for people. Add to lightbox; Add to order; E-mail . 01077564. Marbled Electric Ray (Torpedo sinuspersici) Family Torpedinidae What luck! cc-by-nc-4.0. Native range | All suitable habitat | Point map ... Electrocytes start developing when the embryo weighs about 1 g; electric organs functional before birth and newborns can use their electric organ discharge (EOD) in capturing prey (Ref. The marbled electric ray, Torpedo marmorata, lies buried in the substrate with only its eyes and spiracles protruding above the sea floor. The marbled electric ray has a nearly circular pectoral fin disc and a muscular tail that bears two dorsal fins of nearly equal size and a large caudal fin. Not much is known about the reproductive strategies of marbled electric rays, but scientists believe that the gestation period lasts up to 10 months and females may release 5 to 32 young. Project Noah is a tool that nature lovers can use to explore and document local wildlife and a common technology platform that research groups can use to harness the power of citizen scientists everywhere. The marbled electric ray, also known as the marbled torpedo ray, is one of many ray species that will literally leave prey in shock. This species occurs singly but may form groups during the breeding season. Marbled Electric Ray have a gestation period of 9-12 months. They reach a maximum size of 100cm in length. Marbled electric rays are nocturnal, burying themselves during the day and hunting at night. 2. Marbled electric ray {Torpedo marmorata} Jersey, Channel Is, UK. Oftentimes, only the ray’s eyes are visible above the sand. 11/6/2016 Wikimedia Commons/Philippe Guillaume. The marbled electric ray (Torpedo marmorata) is a species of electric ray in the family Torpedinidae found in the coastal waters of the eastern Atlantic Ocean from the North Sea to South Africa. Marbled electric rays can swallow fishes larger than the width of their closed mouths by expanding their jaws. Datenschutzerklärung Get a quote; Buy a print; Caption. Eastern Atlantic Ocean, Mediterranean Sea, Benthic or bottom habitats including rocky reefs, seagrass beds and muddy flats, Order Torpediniformes (electric or torpedo rays), Family Torpedinidae (electric or torpedo rays). 6. Some sharks and other large carnivorous fish have been known to confront marbled electric rays. The Marbled Electric Ray, also known as Spotted Torpedo, Marbled Torpedo or Torpedo Ray, is a species in the family of the Torpedinidae and thus belongs to the subclass of the Elasmobranchii. There are two rounded dorsal fins located close together on the tail and are nearly equal in size with the first dorsal fin only slightly larger than the second dorsal. 24 Apr 2004 12:49 pm. Reviewed-Annotation score: -Experimental evidence at protein level i. 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