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Ichthyological Bulletin
J.L.B. Smith Institute of Ichthyology
ISSN: 0073-4381
No. 63, 1995
Bioline Code: fb95002
Full paper language: English
Document type: Research Article
Document available free of charge

Ichthyological Bulletin, No. 63, 1995

 en Fishes of the Tristan da Cunha group and Gough Island, South Atlantic Ocean
T.G. Andrew, T. Hecht, P.C. Heemstra and J.R.E. Lutjeharms


Recent collections of fishes from the South Atlantic islands of the Tristan da Cunha Group (Tristan, Inaccessible and Nightingale) and Gough Island have produced 25 new records. Fifty one species are known to occur in the near-shore waters of the islands (46 of these are documented by specimens and another 5 species are probable). A diagnosis, synonymy and in most cases, an illustration, are provided for each species. For certain species, brief notes on biology, relative abundance and seasonal distribution are included. The neritic ichthyofauna of the Subtropical Convergence (STC) region is characterized, and the importance of this frontal zone as a barrier to dispersal of species in the Southern Ocean is evaluated. Analysis of the zoogeographic affinities of the Tristan/Gough fish fauna resulted in a redefinition of the West Wind Drift Islands Province (WWDI), comprising the Tristan Group and Gough in the South Atlantic and St. Paul and Amsterdam Islands in the southern Indian Ocean. Vema Seamount (west of Cape Town) and Walters Shoal (south of Madagascar) are excluded from the WWDI Province, as the affinities of their poorly-known fish faunas appear to be more with South Africa and the tropical Indian Ocean respectively.

© Copyright 1995 J.L.B. Smith Institute of Ichthyology
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