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http://goo.gl/DjOi9 - The Common Dolphin (Delphinus delphis) has two subspecies the Long-beaked common dolphin and Short-beaked common dolphin. - Visit us: http://goo.gl/ZkZz7Facebook: http://facebook.com/bioexpeditionTwitter: http://twitter.com/bioexpeditionYoutube: http://youtube.com/bioexpeditionPinterest: http://pinterest.com/bioexpedition
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COMMON DOLPHINBIOEXPEDITION.COM
Common dolphin
THE COMMON DOLPHIN IS MEMBER OF THE FAMILY DELPHINIDAE
THE COMMON DOLPHIN WAS THE MOST FREQUENTLY REPRESENTED IN THE ART AND LITERATURE OF ANCIENT GREECE AND ROME.
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Common dolphin
THERE ARE TWO SPECIES OF COMMON DOLPHINS:
THE LONG-BEAKED COMMON DOLPHIN (DELPHINUS CAPENSIS)
SHORT-BEAKED COMMON DOLPHIN (DELPHINUS DELPHIS)
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Anatomy
BOTH COMMON DOLPHIN SPECIES ARE MEDIUM SIZED
MALES ARE GENERALLY LONGER AND HEAVIER THAN FEMALES
THEY VARY IN SIZE FROM 6.2 TO 8.2 FT
COMMON DOLPHINS CAN WEIGH BETWEEN 180 AND 520 LB
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Anatomy
COMMON DOLPHINS ARE DISTINGUISHED FROM OTHER SPECIES BY A UNIQUE CRISSCROSS COLOR PATTERN FORMED BY INTERACTION OF THE DORSAL OVERLAY AND CAPE
THE COLOR PATTERN ON THE BODY INCLUDES BLACK, WHITE, GREY, YELLOW OR GOLD
BOTH SUBSPECIES HAS FROM 40 TO 67 PAIRS OF SMALL SHARP CONICAL TEETH IN EACH JAW
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Habitat
COMMON DOLPHINS INHABIT WARM TEMPERATE AND TROPICAL WATERS OF THE ATLANTIC AND PACIFIC OCEANS
THEY ARE ALSO FOUND IN THE CARIBBEAN AND MEDITERRANEAN SEAS
THE SPECIES IS VERY ABUNDANT, WITH MANY AVAILABLE ESTIMATES FOR THE VARIOUS AREAS WHERE IT OCCURS
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Habitat
THE LONG-BEAKED COMMON DOLPHIN ARE FOUND IN
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SOUTHERN AFRICASOUTH AMERICA
MEXICOJAPANKOREATAIWAN
Behavior
THESE FAST-SWIMMING DOLPHINS ARE HIGHLY ACTIVE
COMMON DOLPHINS ARE SOMETIMES SEEN IN GROUPS OF MORE THAN 1,000 INDIVIDUALS
THEY SOMETIMES ASSOCIATE WITH OTHER DOLPHIN SPECIES
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Behavior
AT THE SURFACE, COMMON DOLPHINS ARE EXTREMELY ENERGETIC. AERIAL ACROBATICS ARE COMMON WITH THIS SPECIES
SEASONALITY IN PREY AVAILABILITY MAY EXPLAIN THE COMMON DOLPHIN MIGRATION
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Feeding
THE PREY OF COMMON DOLPHINS CONSISTS MAINLY OF SMALL FISH, KRILL AND SQUID
THEY USE CO-OPERATIVE FEEDING TECHNIQUES
IN THE PELAGIC NORTH ATLANTIC OCEAN, DIET IS DOMINATED BY FISH AND CRUSTACEANS ARE OF MINOR IMPORTANCE
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Feeding
LONG-BEAKED COMMON DOLPHINS ARE CAPABLE OF DIVING TO AT LEAST 900 FT TO CATCH PREY
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ANNUAL FOOD INTAKE OF TWO DOLPHINS IN CAPTIVITY IS AROUND 2,200KG BETWEEN THE AGES OF 16 AND 25 YEARS
Reproduction
GESTATION LASTS APPROXIMATELY 11 MONTHS WITH A CALVING INTERVAL FROM 1 TO 3 YEARS
MALES BECOME SEXUALLY MATURE BETWEEN 3-12 YEARS AND FEMALES BETWEEN 2-7 YEARS
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Reproduction
THE NEWBORN CALF HAS A LENGTH FROM 2.6 TO 3.3 FEET AND A WEIGHT OF ABOUT 20-22 LB
THE AVERAGE LACTATION PERIOD LASTS 16.5 MONTHS
AN AVERAGE RESTING PERIOD LASTS LESS THAN 3 MONTHS
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CONSERVATION AND THREATS
COMMON DOLPHINS FACE A MIXTURE OF THREATS DUE TO HUMAN INFLUENCE.
THE GREATEST THREATS TO COMMON DOLPHINS ARE THE INCIDENTAL CATCH, POLLUTION, OVERFISHING AND TOURISM
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CONSERVATION AND THREATS
COMMON DOLPHINS ARE NOT COMMONLY SEEN IN CAPTIVITY
COMMON DOLPHINS ARE CATEGORIZED AS "LEAST CONCERN" BY THE IUCN
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