Gastrointestinal parasites and prey items from a mass stranding of false killer whales, Pseudorca crassidens, in Rio Grande do Sul, Southern Brazil
Rev. bras. biol
;
61(1): 55-61, Feb. 2001. graf, tab
Artículo
en Inglés
| LILACS
| ID: lil-282405
RESUMO
The gastrointestinal tract of 14 false killer whales, 6 males and 8 females, stranded in June 1995 in southern Brazil, with total standard lengths from 338 to 507 cm, were analysed for endoparasites and food items. A pregnant female had a male foetus of 77.5 cm. Parasites were found in all 14 false killer whales. The nematode Anisakis simplex (Rudolphi, 1809) was found in the stomach of 57 percent of the animals and the acanthocephalan Bolbosoma capitatum (Linstow, 1889) Porta, 1908 was present in the intestine of all specimens and showed densities up to 600 m-1. An unidentified cestode (Tethrabothridae) was found also in the intestines of 14 percent of the individuals. The high infections of B. capitatum and A. simplex were not directly related with the cause of death. In the stomachs of four females, beaks of at least eight specimens of the oceanic and epipelagic species Ommastrephes bartramii (Lesueur, 1821) were found, with mantle lengths ranging from 189.8 to 360.9 mm. The distribution of O. bartramii in the coast of Rio Grande do Sul is consistent with false killer whales feeding in continental shelf waters
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Delfines
/
Preferencias Alimentarias
/
Enfermedades Gastrointestinales
/
Helmintiasis Animal
/
Helmintos
Límite:
Animales
/
Embarazo
País/Región como asunto:
America del Sur
/
Brasil
Idioma:
Inglés
Revista:
Rev. bras. biol
Asunto de la revista:
Biologia
Año:
2001
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Fundação Universidade do Rio Grande/BR
/
Universidade Federal de Pelotas/BR
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