| Groenewald (van J.) A.A. |
Bibliographie associée
| idbiblio | auteurs | support | annee | ext. | pages |
|---|---|---|---|---|---|
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The results of a survey of the fish population of the Vaal River during the period April-December 1956.
Department of the Nature Conservation Division, Transvaal Provincial Administration |
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| 3426 | Groenewald (van J.) A.A. | Report | 1957 | # | 86 p. |
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A revision of the genera Barbus and Varicorhinus (Pisces, Cyprinidae) in Transvaal.
Annals of the Transvaal Museum, 23 (3) |
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| 3554 | Groenewald (van J.) A.A. | Journal | 1958 | # | 263-330,3 text-fig.,12 pl. |
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Clarias, the freshwater barbel.
Transvaal Fauna & Flora, 12 |
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| 4101 | Groenewald (van J.) A.A. | Journal | 1961 | a | 47-55. |
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Notes on the food habits of Clarias gariepinus barbel.
Research Report of the Provincial Fisheries Institute, Lydenburg |
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| 4102 | Groenewald (van J.) A.A. | Report | 1961 | b | |
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The role of Eutropius depressirostris Peters (Pisces : Schilbeidae) as a predator in a lowveld impoundment in the Transvaal.
Hydrobiologia, 23 (1-2) |
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| 4537 | Groenewald (van J.) A.A. | Journal | 1964 | a | 267-273,2 fig. |
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Observations on the food habits of Clarias gariepinus Burchell, the South African freshwater barbel (Pisces : Clariidae) in Transvaal.
Hydrobiologia, 23 (1-2) |
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| 4538 | Groenewald (van J.) A.A. | Journal | 1964 | b | 287-291,1 fig. |