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Encyclopedia > Atlantic Spotted Dolphin
Atlantic Spotted Dolphin

Atlantic Spotted Dolphins, Bahamas
Conservation status
Data deficient (IUCN)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Subclass: Eutheria
Order: Cetacea
Suborder: Odontoceti
Family: Delphinidae
Genus: Stenella
Species: S. frontalis
Binomial name
Stenella frontalis
Cuvier, 1829
Atlantic Spotted Dolphin range
Atlantic Spotted Dolphin range
Synonyms

Stenella plagiodon Cope, 1866 Image File history File links Size of this preview: 800 × 600 pixelsFull resolution‎ (1,600 × 1,200 pixels, file size: 349 KB, MIME type: image/jpeg) File historyClick on a date/time to view the file as it appeared at that time. ... The conservation status of a species is an indicator of the likelihood of that species continuing to survive either in the present day or the future. ... The IUCN Red List of Threatened Species (also known as the IUCN Red List and Red Data List), created in 1963, is the worlds most comprehensive inventory of the global conservation status of plant and animal species and can be found here. ... For other uses, see Scientific classification (disambiguation). ... For other uses, see Animal (disambiguation). ... Typical Classes See below Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates. ... Subclasses & Infraclasses Subclass †Allotheria* Subclass Prototheria Subclass Theria Infraclass †Trituberculata Infraclass Metatheria Infraclass Eutheria Mammals (class Mammalia) are warm-blooded, vertebrate animals characterized by the presence of sweat glands, including those that produce milk, and by the presence of: hair, three middle ear bones used in hearing, and a neocortex... Orders[1] Bobolestes Eomaia Maelestes Montanalestes Murtoilestes Prokennalestes Placentalia Superorder Xenarthra: Cingulata (Armadillos) Pilosa (Sloths, True Anteaters) Superorder Afrotheria: Afrosoricida (Tenrecs, etc. ... Suborders Mysticeti Odontoceti Archaeoceti (extinct) (see text for families) The order Cetacea (IPA: , L. cetus, whale) includes whales, dolphins and porpoises. ... Families See text The toothed whales (systematic name Odontoceti) form a suborder of the cetaceans. ... Genera See text Oceanic dolphins are the members of the Delphinidae family of cetaceans. ... Species Stenella attenuata Stenella frontalis Stenella longirostris Stenella clymene Stenella coeruleoalba Stenella is a genus in the dolphin family. ... This article does not cite any references or sources. ... Georges Cuvier Baron Georges Léopold Chrétien Frédéric Dagobert Cuvier (August 23, 1769–May 13, 1832) was a French naturalist and zoologist. ... Image File history File links Download high resolution version (1357x628, 34 KB) Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1. ... In scientific nomenclature, synonyms are different scientific names used for a single taxon. ...

The Atlantic Spotted Dolphin (Stenella frontalis) is a dolphin found in the Gulf Stream of the North Atlantic Ocean. Older members of the species have a very distinctive spotted coloration all over their boy. For other uses, see Dolphin (disambiguation). ... For the album by Ocean Colour Scene, see North Atlantic Drift (album) The Gulf Stream is orange and yellow in this representation of water temperatures of the Atlantic. ... For other uses, see Atlantic (disambiguation) The Atlantic Ocean is Earths second-largest ocean, covering approximately one-fifth of its surface. ...

Contents

Taxonomy

The Atlantic Spotted Dolphin was first identified by Cuvier in 1828. There is considerable variation in the physical form of individuals in the species and specialists have long been uncertain as to the correct taxonomic classification. Currently just one species is recognised, however it is quite possible that a large, particularly spotty variant commonly found near Florida may be classified as a formal subspecies or indeed a species in its own right. This article is about the U.S. State of Florida. ... This article is about the zoological term. ...


Physical description

The coloring of the Atlantic Spotted Dolphin varies enormously as they grow. Calves are a fairly uniform grey colour. When the calves are weaned, they then begin to get their spots. Juveniles have some dark spots on their belly, and white spots of their flanks. Their back and dorsal fin are a darker grey than the rest of the body. As the animal matures the spots became denser and spread all over the body until at full physical maturation the body appears black with white spots.


The Atlantic Spotted Dolphin has a 3-part coloration:

Dark gray back, lighter sides, and a white belly.

Measurments at Birth:

Length: about 35"-43" (90-110 cm)
Weight: unavailiable

Maximun Measurments:

Length:
Male 7'5" (2.26 m)
Female 7'6" (2.29 m)
Weight:
Male 310 lb. (140 kg)im gay
Female 290 lb. (130 kg)

These dolphins are a middle sized dolphin in both legth and weight. At full size South American Spotted Dolphins are about 2.2-2.5m in length. Compared to their much smaller pantropical spotted dolphin, the atlantic spotted dolphin is more robust. It lives in common waters with the pantropical spotted dolphin and the bottlenose dolphin.


In common with other species in its genus the Atlantic Spotted is a gregarious creature. It is a fast swimmer, keen bow-rider and prone to acrobatic aerial displays.


Population and distribution

The species is endemic to the temperate and tropical areas of the Atlantic Ocean. It has been widely observed in the western end of the Gulf Stream, between Florida and Bermuda. It is also present in the Gulf of Mexico. More infrequent sightings have been made further east, off the Azores and Canary Islands. Northerly sightings have been made as far north as Cape Cod across to the south-western tip of Spain. They are certainly present further south too as far as Rio Grande do Sul in Brazil and across to west Africa. However the distribution is poorly understood in these areas. Gulf of Mexico in 3D perspective. ... Motto (Portuguese for Rather die free than in peace subjugated) Anthem  (national)  (local) Capital Ponta Delgada1 Angra do Heroísmo2 Horta3 Largest city Ponta Delgada Official languages Portuguese Government Autonomous region  -  President Carlos César Establishment  -  Settled 1439   -  Autonomy 1976  Area  -  Total 2,333 km² (n/a) 911 sq mi... Anthem: Arrorró Capital Las Palmas de Gran Canaria and Santa Cruz de Tenerife Official language(s) Spanish Area  â€“ Total  â€“ % of Spain Ranked 13th  7,447 km²  1. ... This article is about the area of Massachusetts known as Cape Cod. For other uses, see Cape Cod (disambiguation). ... Flag of Rio Grande do Sul See other Brazilian States Capital Porto Alegre Largest City Porto Alegre Area 282,062 km² Population   - Total   - Density 10. ... A world map showing the continent of Africa Africa is the worlds second-largest and second most-populous continent, after Asia. ...


About 20 years ago, there where only about 80 dolphins in the Bahamas. Now, 20 years later, there are almost 200 dolphins there. On account of their similar appearance to other dolphins in their range it is difficult to be sure of the Atlantic Spotted Dolphin's population. A conservative estimate is around 100,000 individuals.


Human interaction

Some Atlantic Spotted Dolphins, particularly some of those are around The Bahamas have become habituated to human contact. In these areas cruises to watch and even swim with the dolphins are common.


Atlantic Spotted Dolphins are an occasional target of harpoon fishermen and every year some creatures are trapped and killed in gillnets. However these activities are not currently believed to be threatening the survival of the species. For other uses, see Harpoon (disambiguation) Harpoon gun redirects here. ... Oil painting of gillnetting, The salmon fisher by Eilif Peterssen. ...


References

  • Cetacean Specialist Group (1996). Stenella frontalis. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 12 May 2006. Database entry includes justification for why this species is listed as data deficient
  • Whales Dolphins and Porpoises, Mark Carwardine, Dorling Kindersley Handbooks, ISBN 0-7513-2781-6
  • National Audubon Society Guide to Marine Mammals of the World, Reeves, Stewart, Clapham and Powell,and there is no charicteristics for survival. ISBN 0-375-41141-0

The IUCN Red List of Threatened Species (also known as the IUCN Red List and Red Data List), created in 1963, is the worlds most comprehensive inventory of the global conservation status of plant and animal species and can be found here. ... The World Conservation Union or International Union for the Conservation of Nature and Natural Resources (IUCN) is an international organization dedicated to natural resource conservation. ...

External Links

  • Whale and Dolphin Conservation Society

  Results from FactBites:
 
Pantropical spotted dolphin (896 words)
At birth, this dolphin is unspotted, with a strongly defined cape, a flipper stripe ending at the mouth and a peduncle with a dark upper part and a lighter lower part.
The pantropical spotted dolphins in the Atlantic are on average 215 resp.
Perrin, W.F., Mitchell, E.D., Mead, J.G., Caldwell, D.K., Caldwell, M.C., van Bree, P.J.H. and Dawbin, W.H. Revision of the spotted dolphins, Stenella spp.
Atlantic Spotted Dolphin (Stenella frontalis) (178 words)
These dolphins are a common, offshore resident of tropical and warm temperate waters of the Atlantic Ocean.
Atlantic spotted dolphins may be seen in groups of up to 50 animals, but smaller groups of six to 10 are more common.
Although this dolphin is a common offshore resident of the Gulf of Mexico, the dolphins may move into nearshore waters in late spring and summer in Florida.
  More results at FactBites »


 
 

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