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Welcome to the Marine vertebrates directory on Dogsbreathdivers.com
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| Dolphins | Dugong | Eels | Krill | Penguins | Porpoises |
| Rays | Seals | Sharks | Turtles | Whales | |
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Picture copyright belongs to the photographer mentioned by each picture |
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Dolphins, Whales and Porpoises Is it a Dolphin, Whale or Porpoise? Scientifically they are all cetaceans and there is no difference, so people usually go by their size, but even that is not fixed. Generally a porpoise is the smallest (below 3m/11feet), and whale the largest (over 10m/33feet). Amongst other things Dolphins eat squid and flounder. Unlike those in captivity they prefer not to be touched. They also get bored with people very quickly unless you play - so go on, roll over and copy them. Their chief enemies are the bull, tiger and reef sharks. Their main protection is to swim away or go to the bottom, lie quietly and wait for the threat to leave. Click here for a lot more information on the 81 varieties of Whales, Dolphins and Porpoises. |
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There are over 12,000 Dugong in shark bay, Australia. They look like
manatees and can weigh a ton. They eat sea grass. Mammals. Eaten by
tiger sharks. <photo please> |
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Eels are fish with long, snake like bodies. They are usually seen in rock crevices or the sand. They eat fish. Electric eels hunt, and defend themselves
using electric socks of 600 volts. They breath air. Keep at least
a metre/3 feet away. |
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Picture www.deepbluediversdahab.com |
Sinuous fish that keep their tails firmly in the sand and return to their
burrows if danger threatens. e.g. a Flounder. They are often in large
shoals in the sand. |
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Krill:
Small, shrimp like in appearance. Found in vast swarms in the millions in the Antarctic.
These are believed to be the most abundant species on our planet. |
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Adélie :
Chinstrap : Emperor: Gentoo
: King : Macaroni :
Magellanic |
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| Adélie
Penguins
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Live in the Antarctic. White body and black head and back. Black feet and flippers. White ring around the eye. They live and breed on islands and feed under the ice. They can only fast for a couple of days...If all goes well, the sea ice breaks out around the time the chicks hatch so that the parents can do quick turn-around feeding trips) Sometimes 2 chicks per pair. Males get to their breeding colonies first, re-pebble their nests then court the females. Lay 2 eggs which they both incubate. Chicks hatch after 2 months and fed in relays. As the days get longer they feed more. | ||||
| Chinstrap Penguins. | So called because they have a thin white line under their chin. Black backs, white fronts including underside of fins. Black beak. Eat almost only Krill. 50 million chinstraps. Colonised Zabadofski island just off the Antarctic coast. Its a hot, active volcano so is warm and host to 2 million chinstraps. (photo awaited <please>). | ||||
| Emperor Penguin
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Found only in Antarctica only the emperors travel south in the Antarctic Winter. The deepest dive recorded so far was to 565 m or 0.35 miles which is below the night level. Most dives are 3-6 minutes hunting for their food, but dives have been recorded over 20 minutes. Eggs laid in early winter, in May. The mothers go to sea and don’t return until the Spring. They incubate their eggs for 65-75 days, brood their young for about 50 days and rear them to fledging in about 160 days. The emperor males do all the incubating and while they can't go and eat fish they eat snow to prevent dehydration. During the fiercest storms the males huddle together taking their turn on the windward side, most of the time they hang out in rather loose groups. The egg is positioned in a fold of skin protecting it from the elements. When the sun eventually starts to rise the eggs hatch. This is when their mothers return with food to regurgitate for the chick. The winter increases the sea ice to walk over 30 miles. When the mother returns to feed their chick the father leaves to feed himself. They could be eaten by Leopard Seals or Killer Whales. For the next 5 months the parents alternate fishing and feeding their chicks. They make use of Weddel seal holes in the ice. The chicks get fed very infrequently (once every 2-3 weeks) and the adults can deliver only about 3 kg per time. Under the ice is a busy world of krill and fish. Krill are eating algae and minerals in the new sun light. They gather in gigantic swarms larger than any other animal on earth. The winter storms are becoming more severe.
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| Gentoo Penguins
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King Penguins![]() Picture by Barbara.Wienecke |
South Georgia in the Antarctic is the home of
80,000 chicks. The 2nd largest penguins are the Kings
and breed here and are flourishing. 100 years ago they were nearly
hunted to extinction but ok now. The chicks have a woolly coat and
rearing takes longer than a year. The chicks mainly live off their fat
for 3 months before the parent returns to feed it.
White front, black head, yellow blotch on throat. Flippers have a black back, white front. Black feet and tail. Eaten by bull elephant seals. |
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| Macaroni Penguins. | One of the "crested" penguins. Live mainly on sub-Antarctic islands. Noisy and numerous. Long Yellow feathers above the eye. Black back and flippers, pink feet and beak is dark orange-brown. Eat mainly krill. | ||||
| Magellanic Penguin |
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Rays:
Rays are normally split into Sting rays and Manta
rays Whales can eat them, but as they are fish they can stay under cover in water, whereas the whale needs to surface eventually for air. |
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Almost all picture are 'thumbnails' so click on them to expand them. |
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They are bigger than you think! |
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Another Blue spotted Ray
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Eagle Ray
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There's room for your photo here
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Manta rays have been seen in: |
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| Giant Pacific Manta Ray, Seen in Hawaii and the Seychelles. May be 16 feet/5m across. |
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Grey : Harbour : Elephant : Weddell Seals are found the world over. They eat a wide range of marine food such as cod, haddock, prawns. They have very good hearing. Seal meat is eaten (by people) in Canada, and whales. Here are some locations where you can dive with them:
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The average full grown male weighs 4 tons, a female 1 ton and be 7 metres long, and they’ll defend their group from other males, and you. The males are very aggressive when approached. They may try to kill you on land. An average dive is to 500m and can go to 1.5km/1 mile deep for 25 - 35 minutes. Hundreds of elephant seals have made their home 50 miles south of San Francisco. Elephant seals are territorial and a pack can be 100 strong with one dominant male. |
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Harbour seals
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They eat about 7 kilos/15lb of cod, salmon and other fish daily. In the UK they are protected by the Grey Seal Protection Act 1914. There are over 125,000 grey seals around Britain, of which 90% are in Scottish waters. |
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Picture Grey seal in the Scilly Isles, UK by James
Yonge http://scubadiving.8k.com |
Picture Grey seal in the Scilly Isles, UK by James Yonge http://scubadiving.8k.com |
Search engines
appear to rank web sites higher the more links they have pointing to
them, which is why we place links to the sites that permit us to use
their pictures.
Please add links to us too ~ thank you. |
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Weddell Seals |
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Picture copyright by Terrie Williams in the Antarctic |
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Sea Lions |
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Green Turtles |
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Can be found around the world and especially in:
Bali, Indonesia. There's a Green turtle farm at Reef Seen Aquatics Dive Centre |
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Hawksbill Turtles |
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![]() Picture by Mojo of HellfishDivers in St Kitts |
![]() Picture by www.scubaiguana.com Galapagos |
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Leatherback
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Loggerhead Turtles Nest on the beaches at Maputaland, South Africa the Seychelles and in Mozambique. Loggerheads have a hard shell. Loggerhead
Turtles have bred on the island of Zakynthos
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Sperm Whales: Indonesia (Sulawesi) and Antarctic. The bulls arrive from the Antarctic in May in
Sulawesi. Pictures awaited.
We would just like to say 'thank you' for providing pictures for our pages. |
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