Primeiros registros dos golfinhos Stenella coeruleoalba, Stenella cfr. plagiodon e Steno bredanensis para o sul do Brasil, com notas osteológicas

Pinedo, Maria Cristina; Castello, Hugo P.

doi:10.1590/S0373-55241980000200063

Resumo

Menella coeruieoalba is a dolphin widely distributed in temperate and tropical waters. This species is recorded for our marine fauna on the basis of a 2.35 m long specimen found at 20 km North of the East rocky jetty on the access channel into Lagoa dos Patos, RS, (MORG 064) and also from a sightning in front of Santa Catarina coast. Its vertebral formula is: C 7 + D 14 + L 21 + Ca 34 = 76, with 23 Chevron bones. The number of alveoli is 48-48 / 43-42, its presents 14 pairs of ribs, 8 of them double-headed. The skull measurements of this specimen are compared with other three from the Southern Hemisphere. Through colour slides obtained in front of Rio de Janeiro coasts, Steno bredanensis was recorded. This dolphin also presents a wide distribution similar to the previous species. During the first cruise of the R/V "Atlântico Sul" two pods of the spotted dolphin, Stenella cfr. plagiodon were sighted and photographed. This species can be easily identified on the basis of the clear brown tegument with numerous white rounded spots, in adults. One of the skull (MCNRS 026) studied may belong to this species.

ARTIGOS

Primeiros registros dos golfinhos Stenella coeruleoalba, Stenella cfr. plagiodon e Steno bredanensis para o sul do Brasil, com notas osteológicas^* * - Contribuição da Base Oceanográfica Atlântica-nº 8.

Maria Cristina Pinedo; Hugo P. Castello

Base Oceanógrafica Atlântica, Fundação Universidade do Rio Grande, Rio Grande, RS, Brasil

SYNOPSIS

Menella coeruieoalba is a dolphin widely distributed in temperate and tropical waters. This species is recorded for our marine fauna on the basis of a 2.35 m long specimen found at 20 km North of the East rocky jetty on the access channel into Lagoa dos Patos, RS, (MORG 064) and also from a sightning in front of Santa Catarina coast. Its vertebral formula is: C 7 + D 14 + L 21 + Ca 34 = 76, with 23 Chevron bones. The number of alveoli is 48-48 / 43-42, its presents 14 pairs of ribs, 8 of them double-headed. The skull measurements of this specimen are compared with other three from the Southern Hemisphere. Through colour slides obtained in front of Rio de Janeiro coasts, Steno bredanensis was recorded. This dolphin also presents a wide distribution similar to the previous species. During the first cruise of the R/V "Atlântico Sul" two pods of the spotted dolphin, Stenella cfr. plagiodon were sighted and photographed. This species can be easily identified on the basis of the clear brown tegument with numerous white rounded spots, in adults. One of the skull (MCNRS 026) studied may belong to this species.

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Bibliografia

BAKER, A. N. & STEPHENSON, A.B. 1972. The ocurrence of the dolphin genus Stenella in New Zeland waters. Rec. Domin. Mus. 8(1):107-114.
BROWNELL JR., R. L. & PRADERI, R. 1976. Records of the defphinid genus Stenella in Western South Atlantic waters. Sci Rep. Whales Res. Inst., Japan, (28)129-135.
CADENAT, J. 1948. Notes sur les cétacés observes sur les cotes du Senegal de 1941 a 1948. Bull. Ifan, 11:1-15.
CALDWELL, D.K. & CALDWELL, M. C. 1966. Observations on the distribution, coloration, behavoir and audible production of the spotted dolphin Stenella plagiodon (Cope). Contr. Sci. Los Angeles Count. Mus, (104):1-104.
CARVALHO, C.T. de 1975. Ocorrências de mamíferos marinhos no Brasil. Bolm Téc. Inst. Flor., São Paulo, (16):12-32.
KASUYA, T.; MIYAZAKI, N. & DAWBIN, W. H. 1974. Growth and reproduction of Stenella attenuata in the Pacific coast of Japan. Sci. Rep. Whales. Res. Inst., Japan (26):257-226.
LAYNE, J. N. 1965. Observation on marine mammals in Florida waters. Bull. Florida St Mus. Biol. Sc., Gaineswille, 9(4):131-181.
LEATHERWOOD, S. & EVANS, W. E. 1972. The whales, dolphins and porpoises of the E.N.Pacific. A guide to their identification in the water. Nav. Und. Cent. California: TP 282;175 p.
LEATHERWOOD, S.; CANDWELL, D. K. & WINN, H. E. 1976. Whales, dolphins and porposies of the Atlantic. A guide to their identification. N.O.A.A. Tech. Rep. NMFC Circ., (396):176 p.
MEYEN, F. J. F. 1833. Beitrage zur Zoologie, gesammlet auf einer Reise un die Erde. Nov. Act. Acad. Caes. Leop. Carol. Nat. Curios., 16(2):551-610.
MORZER BRUYNS, W. F. J. 1974. On sigth-records of the euphrosyne dolphin, Stenella coeruleoalba (Meyen, 1843), in the Mediterranean. Mammalia, Paris 38(3):503-507.
NISHIWAKI, M. 1972. (Marine Mammal) General Biology. In "Mammals of the sea. Biology and Medicine" (Ed. Ridway). Illinois, Ch. C. Thomas, 812p.
RICE, D. W. 1977. A list of the marine mammals of the world. N.O.A.A. Tech Rep. NMFS. (711):1-15.
RICHARDSON, J. I. 1973. A confirmed occurrence of the roughtoothed dolphin (Steno bredanensis) on the Atlantic coast of the United States. J. Mammal., Washington, 54(2):275.

*

- Contribuição da Base Oceanográfica Atlântica-nº 8.

Datas de Publicação

Publicação nesta coleção
06 Jun 2012
Data do Fascículo
1980

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

[1] BAKER, A. N. & STEPHENSON, A.B. 1972. The ocurrence of the dolphin genus Stenella in New Zeland waters. Rec. Domin. Mus. 8(1):107-114.

[2] BROWNELL JR., R. L. & PRADERI, R. 1976. Records of the defphinid genus Stenella in Western South Atlantic waters. Sci Rep. Whales Res. Inst., Japan, (28)129-135.

[3] CADENAT, J. 1948. Notes sur les cétacés observes sur les cotes du Senegal de 1941 a 1948. Bull. Ifan, 11:1-15.

[4] CALDWELL, D.K. & CALDWELL, M. C. 1966. Observations on the distribution, coloration, behavoir and audible production of the spotted dolphin Stenella plagiodon (Cope). Contr. Sci. Los Angeles Count. Mus, (104):1-104.

[5] CARVALHO, C.T. de 1975. Ocorrências de mamíferos marinhos no Brasil. Bolm Téc. Inst. Flor., São Paulo, (16):12-32.

[6] KASUYA, T.; MIYAZAKI, N. & DAWBIN, W. H. 1974. Growth and reproduction of Stenella attenuata in the Pacific coast of Japan. Sci. Rep. Whales. Res. Inst., Japan (26):257-226.

[7] LAYNE, J. N. 1965. Observation on marine mammals in Florida waters. Bull. Florida St Mus. Biol. Sc., Gaineswille, 9(4):131-181.

[8] LEATHERWOOD, S. & EVANS, W. E. 1972. The whales, dolphins and porpoises of the E.N.Pacific. A guide to their identification in the water. Nav. Und. Cent. California: TP 282;175 p.

[9] LEATHERWOOD, S.; CANDWELL, D. K. & WINN, H. E. 1976. Whales, dolphins and porposies of the Atlantic. A guide to their identification. N.O.A.A. Tech. Rep. NMFC Circ., (396):176 p.

[10] MEYEN, F. J. F. 1833. Beitrage zur Zoologie, gesammlet auf einer Reise un die Erde. Nov. Act. Acad. Caes. Leop. Carol. Nat. Curios., 16(2):551-610.

[11] MORZER BRUYNS, W. F. J. 1974. On sigth-records of the euphrosyne dolphin, Stenella coeruleoalba (Meyen, 1843), in the Mediterranean. Mammalia, Paris 38(3):503-507.

[12] NISHIWAKI, M. 1972. (Marine Mammal) General Biology. In "Mammals of the sea. Biology and Medicine" (Ed. Ridway). Illinois, Ch. C. Thomas, 812p.

[13] RICE, D. W. 1977. A list of the marine mammals of the world. N.O.A.A. Tech Rep. NMFS. (711):1-15.

[14] RICHARDSON, J. I. 1973. A confirmed occurrence of the roughtoothed dolphin (Steno bredanensis) on the Atlantic coast of the United States. J. Mammal., Washington, 54(2):275.