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Thavha i ya-ya

The fishes of the Family Sphyraenidae in the Western Indian Ocean

  • Authors: Smith, J.L.B. (James Leonard Brierley), 1897-1968
  • Date: 1956
  • Subjects: Western Indian Ocean , Sphyraenidae , Sphyraena , Barracudas , Sphyraenoidei
  • Language: English
  • Type: Text
  • Identifier: vital:14966 , http://hdl.handle.net/10962/d1018540 , Ichthyological Bulletin; No. 3
  • Description: Although the Sphyraenidae occur in all warm seas, there are probably less than twenty valid species, about twelve in the Indo-Pacific, one of which occurs in the Atlantic as well. The larger species are in most parts more of angling than commercial significance, but some of the smaller at times occur in great shoals in shallow water where they may be netted. The Sphyraenidae are of some importance as food, the flesh of all species being delicate and well flavoured. In some parts there have been reliable reports that the flesh of certain species may cause acute poisoning, but we found no evidence of this in the Western Indian Ocean. As may be deduced from the torpedo-like body and the huge mouth with formidable sabre-like teeth, the large species are fierce predators and much feared as they move with great speed and do not hesitate to attack man. They are not generally ranked very high as game fishes, for most are taken on heavy tackle put out for larger types such as Tunny and so are easily subdued. In South African seas only few species are known, and only rarely below about 32°S. They are a not uncommon catch in Natal waters, where they are known as “Sea Pike.” , Rhodes University Libraries (Digitisation) , The main funds which made possible the extensive traveling necessary for adequate investigation of these wide-ranging fishes came from the South African Council for Scientific and Industrial Research. We acknowledge also extensive facilities and assistance received in the Western Indian Ocean from the authorities of Mozambique, Tanganyika, Kenya, Zanzibar, Pemba, Seychelles and all islands, excepting French territories, there. I am indebted to my wife, Margaret Mary Smith, for the illustrations. The publication of this bulletin has been made possible by a special grant from the South African Council for Scientific and Industrial Research.
  • Full Text:
  • Date Issued: 1956

The fungal flora associated with black spot of pineapples

  • Authors: Edmonstone-Sammons, Chloris
  • Date: 1956
  • Subjects: Fungi , Pineapple -- Diseases and pests , Citrus -- Diseases and pests , Citrus -- Soils
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:4258 , http://hdl.handle.net/10962/d1011738 , Fungi , Pineapple -- Diseases and pests , Citrus -- Diseases and pests , Citrus -- Soils
  • Description: The earliest reference to investigations of "black spot" in pineapples is made by Tryon (1898), who refers to the work of Dr A. A. Brown (1896) of the stock Branch, Victoria (Aus.), who sectioned diseased areas of pineapples and found fungal spores and hyphae in the tissues. The symptoms of this socalled "fruitlet core rot," are described by Tryon as: "well defined dark brown markings immediately beneath the surface, and passing inwards to a depth of 1/4" to 1/2"- the malady commencing in separate fruitlets, the central core of the fruit remaining quite healthy." (This description agrees with the symptoms referred to as "black spot" 1n this country). Subsequent culture of the spores (found by Brown) on slices of healthy fruit resulted in growth of Mucor racemosus. Brown regarded an invasion by this fungus as a primary cause of the disease. Intro. p. 1.
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  • Date Issued: 1956

The great domba song

The great domba song

The great Domba song

The great Domba song

The great domba song

The Parrot fishes of the Family Callyodontidae of the Western Indian Ocean

  • Authors: Smith, J.L.B. (James Leonard Brierley), 1897-1968
  • Date: 1956
  • Subjects: Western Indian Ocean , Parrotfishes , Callyodontidae , Parrot fishes , Scaridae
  • Language: English
  • Type: Text
  • Identifier: vital:14964 , http://hdl.handle.net/10962/d1018535 , Ichthyological Bulletin; No. 1
  • Description: Parrot fishes are so abundant in the tropical parts of the Western Indian Ocean as to be of considerable economic significance. The majority are taken in traps and nets, some by spearing, fewer on lines. The flesh of even the largest is delicate and tasty, mostly eaten fresh as it is not easily preserved. It is esteemed by almost all races and classes, excepting only the Portuguese of Mozambique who do not regard these gaudy fishes with favour. In British territories, however, they are eagerly sought by the Whites. It has been stated that in some parts Parrot fishes are toxic, but as far as could be ascertained no species are ever unwholesome in East Africa or north of Madagascar to Seychelles. It is only in certain specific cases that laymen and even the native fishermen are able to distinguish individual species of Parrot fishes. Most species are more or less lumped together as “Parrots” with prefixes such as “Green” or “Red.” To the native fishermen they are known as follows: Red Sea to Suez, “Harid”; Somaliland, “Jello” or “Ponno”; Kenya to North Mozambique, “Pono”; Seychelles and vicinity, “KAKATOI”; Mauritius, “KAKATOI” or “GATEAU,” some species characterised more closely by descriptive adjectives. These fishes are commonly subject to what appears to be a parasitic infection of the nostrils, resulting in considerable swelling of the snout. , Rhodes University Libraries (Digitisation) , The main funds were provided by the South African Council for Scientific and Industrial Research, enabling expeditions to be made to Mozambique, Tanganyika, Zanzibar, Pemba, Kenya, Seychelles and the other islands north of Madagascar, whose authorities provided valuable aid and facilities in support. It had been intended to include French territories but this was unfortunately not possible. This publication and its ample colour illustration have been made possible by a generous special grant from the South African Council for Scientific and Industrial Research.
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  • Date Issued: 1956

The threshold of space: inaugural lecture delivered at Rhodes University

  • Authors: Gledhill, Jack Alan
  • Date: 1956
  • Subjects: Atmospheric physics , Meterology
  • Language: English
  • Type: Text
  • Identifier: vital:631 , http://hdl.handle.net/10962/d1020700
  • Description: Inaugural lecture delivered at Rhodes University , Rhodes University Libraries (Digitisation)
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  • Date Issued: 1956

The voluntary welfare organisations of the Border and Transkei: a contribution to the sociology of social work

  • Authors: Bettison, D G
  • Date: 1956
  • Subjects: Social service -- South Africa -- Transkei Social service -- South Africa -- Eastern Cape Volunteer workers in social service
  • Language: English
  • Type: Thesis , Doctoral , PhD
  • Identifier: vital:3314 , http://hdl.handle.net/10962/d1003102
  • Description: This research is intended to examine the internal organisational structure of the existing [voluntary welfare] organisations to ascertain what relationship may prove effective between themselves and the [Border Local Welfare] Board. This aim introduced the need to ascertain whether a) the organisations in any town were connected with organisations in other towns or to a central administrative office either in the area of investigation or outside it; or b) the organisations of any town were simply ad hoc units unrelated to any other organisation or similar organisations elsewhere. If the latter were the case then the difficulty of co-ordination and representation on the Board could probably be no better arranged than an ad hoc system as at present. If, however, the former was the predominant pattern, then it would suggest other and more convenient means to the end in view. Fourthly, it was hoped to gain some knowledge of the fund raising methods of welfare organisations, the nature of the people controlling them, the attitudes of managing committees to social work, and what they thought a case work agency should do; and, lastly, some indication of the history of social work as practised by the voluntary agencies in the area of investigation. These latter topics were not intended to form the principal subject matter of the work. They have not been treated fully in the text, but the information gathered has been included in appropriate places throughout.
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  • Date Issued: 1956

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