(DRAFT) - Taxonomy
Species dolphin, saddleback
Species Id M120016
Date 26 AUG 96
TAXONOMY
NAME - dolphin, saddleback
OTHER COMMON NAMES - common dolphin and saddleback dolphin
ELEMENT CODE - 03/19/84
AOU CODE - 04/26/85
CATEGORY - Marine Mammals
PHYLUM AND SUBPHYLUM - Chordata, Vertebrata
CLASS AND SUBCLASS - Mammalia, Theria
ORDER AND SUBORDER - Cetacea, Odontoceti
FAMILY AND SUBFAMILY - Delphinidae,
GENUS AND SUBGENUS - Delphinus,
SPECIES AND SSP - delphis,
SCIENTIFIC NAME - Delphinus delphis
AUTHORITY - Linnaeus 1758
TAXONOMY REFERENCES - 1043, 1033 and 2093
COMMENTS ON TAXONOMY -
Other common name: common dolphin, saddleback porpoise
*1043*
Taxonomy - 1 (DRAFT) - Status
Species dolphin, saddleback
Species Id M120016
Date 26 AUG 96
STATUS
Coded Status
Marine Mammal
REFERENCES FOR STATUS - 1029 and 1033
Status - 1 (DRAFT) - Distribution
Species dolphin, saddleback
Species Id M120016
Date 26 AUG 96
DISTRIBUTION
References on County Occurrence - CB1 and AO1
REFERENCES FOR HYDROLOGIC UNIT CODES - CB1 and AO1
REFERENCES FOR OTHER DISTRIBUTION - H
Distribution - 1 HABITAT ASSOCIATIONS
HABITAT - Aquatic
REFERENCES FOR HABITAT - 1033
LAND USE -
Water
Atlantic Ocean Coastal Waters
REFERENCES FOR LAND USE - 1043, 1033, 2094 and 2096
NATIONAL WETLAND INVENTORY CODES
NWI NWICLS NWIMOD NWISPEC
Marine, subtidal OW0
Estuarine, subtidal OW0
REFERENCES FOR NWI - 1043, 2094 and 2096
ANIMAL/PLANT SPECIES ASSOCIATIONS -
Parasites: Braunina cordiformis
Campula delphini
C. palliata
C. rochebruni
Calactosomum erinaceaum
Nasitrema delphini
Diphyllobothrium stemmacephalum
Monorygma delphini
Tetrabothrius forsteri
Anisakis simplex
Halocercus delphini
H. kleinendergi, Skrjabinalius cryptocephalus, Bolbosoma
vaculosum
Corynosoma cetaceum
Corynosoma sp. *1030*
REFERENCES FOR SPECIES ASSOCIATIONS - 1030
Habitat Associations - 1 (DRAFT) - Food Habits
Species dolphin, saddleback
Species Id M120016
Date 26 AUG 96
FOOD HABITS
TROPHIC LEVEL -
Carnivore
REFERENCES FOR TROPHIC LEVEL - 1043, 1033 and 2094
LIFESTAGE FOOD FOOD PART
General Animals Adult stage
General Molluscs Adult stage
General Squid, Octopus Adult stage
General Osteichthyes Adult stage
General Myctophiformes Adult stage
General Clupeiformes Adult stage
General Gadiformes Adult stage
General Crustaceans Adult stage
Important Animals Adult stage
REFERENCES FOR GENERAL FOOD - 1043, 1033, 2094, 1037, 1048, 1035 and 2108
REFERENCES FOR IMPORTANT FOOD - 1033
Food Habits - 1 (DRAFT) - Environment Associations
Species dolphin, saddleback
Species Id M120016
Date 26 AUG 96
ENVIRONMENTAL ASSOCIATIONS
G = General A = Adult
LIM = Limiting RA = Resting Adult
J = Juvenile FA = Feeding Adult
RJ = Resting Juvenile BA = Breeding Adult
FJ = Feeding Juvenile P = Pupae
L = Larvae E = Egg
RL = Resting Larvae
FL = Feeding Larvae
LIFESTAGE ENVIRONMENTAL ASSOCIATIONS
G Aquatic Habitat Zonation: Open water [pelagic zone]
LIM Aquatic Habitat Zonation: Open water [pelagic zone]
REFERENCES FOR ENVIRONMENTAL ASSOC_ - 1043 and 1033
REFERENCES FOR LIMITING ENVIRONMENTAL ASSOC_ - 1033
Environment Associations - 1 (DRAFT) - Life History
Species dolphin, saddleback
Species Id M120016
Date 26 AUG 96
LIFE HISTORY
PHYSICAL DESCRIPTION: length=7.5-8.5 (2.3-2.6 m), males are
10-20 cm longer than females; dorsal fin is triangular or falcate and
pointed on the tip; flippers are triangular and pointed; tail fluke
spread is 1/5 to 1/4 body length; color is variable, generally black
dorsally and white ventrally, the sides are marked with a yellow
crisscross pattern; vertebral formula is C7+T14+L21+Ca31-32=73-74; the
phalangeal formula is I:2, II:9, III:6-7, IV:3-4, V:1-2; teeth are small
(3 mm in diameter), 40-50 teeth on each row of both jaws
*1043,2094,1037,1035* REPRODUCTION: breeding season is spring and fall;
gestation lasts 10-11 months; 1 offspring/reproductive period; 1 year
rest required after every 3 pregnancies; male and female mature at 3
years *1043,2094,1044*; BEHAVIOR: gregarious, associating in schools of
40-1000 individuals, these schools are often segregated by age and sex;
often seen riding bow waves of ships; usually makes only shallow dives
*1043,1048,1035*; ORIGIN: native *2096*
REFERENCES FOR LIFE HISTORY- 1043, 2094, 1037, 1035, 1044, 1048 and 2096
Life History - 1 (DRAFT) - Management Practices
Species dolphin, saddleback
Species Id M120016
Date 26 AUG 96
MANAGEMENT PRACTICES
RESULT MANAGEMENT PRACTICE
Beneficial Regulating harvest of species being described
Beneficial Prohibiting harvest of species being described
Beneficial Public education - publicity
Beneficial Public education - law enforcement
Existing Regulating harvest of species being described
Existing Prohibiting harvest of species being described
Existing Public education - publicity
Existing Public education - law enforcement
Existing Other management practices [specified in comments]
REFERENCES FOR BENEFICIAL MANAGEMENT PRACTICES - 1048
REFERENCES FOR EXISTING MANAGEMENT PRACTICES - 1048
COMMENTS ON MANAGEMENT PRACTICES -
999(E)=permits are issued by U.S.D.C. to allow for accidental
take in tuna purse seine fishing *1048*
Management Practices - 1 (DRAFT) - References
Species dolphin, saddleback
Species Id M120016
Date 26 AUG 96
References
1029* (ed.). Checklist of Virginia marine mammals. Virginia
Assoc. Res. Campus 12.
1030* Dailey, M.D., Brownell, R.L., Jr. 1972. A checklist of
marine mammal parasites. Mammals of the Sea: Biology and
Medicine Ridgeway, S. H. Charles C. Thomas Publ. Springfield,
Ill:528-529.
1033* Gunderson, H.L. 1976. Mammalogy. McGraw-Hill Inc. New
York, N.Y:117-120.
1035* Martin, R.M. 1977. Mammals of the Oceans. G.P. Putnam's
Sons New York, N.Y:44-82.
1037* Nishiwaki, M. 1972. General biology. Mammals of the Sea:
Biology and Medicine Ridgeway, S. H. Charles C. Thomas Publ.
Springfield, Ill:3-204.
1043* Schmidly, D.J. 1981. Marine mammals of the southeastern
United States and the Gulf of Mexico. (41). U.S. Fish and Wildl.
Serv., Off. Biol. Serv. Washington, D.C:163.
1044* Slijper, E.J. 1979. Whales. Cornell Univ. Press Ithica,
N.Y:384-385.
1048* Serv., National Marine Fisheries. 1981. Marine mammal
protection act of 1972. Annual report.. U.S. Dep. Comm., Natl.
Oceanic and Atmospheric Admin. Washington, D.C:143.
2093* Hershkovitz, P. 1966. Catalog of living whales. Bull. 246.
Smithsonian Instit. Washington, D.C:260.
2094* Leatherwood, S., Caldwell, D.K., Winn, H.E. 1976. Whales,
dolphins, and porpoises of the western North Atlantic. A guide
to their identification. Marine Fish. Serv. Circ. 396. Natl.
Oceanic Atmos. Adm. Washington, D.C:176.
2096* Wass, M.L., et_al. 1972. A checklist of the biota of Lower
Chesapeake Bay. Scientific Rep. No. 65. V.I.M.S. Gloucester
Point, Va:290.
2108* Fitch, J.E., Brownell, R.L., Jr. 1968. Fish otoliths in
Cetacean stomachs and their importance in interpreting feeding
habits. J. Fish. Res. Board Can. 25:2561-2574.
References - 1