Výsledky vyhledávání - "P. B. N. Jackson"

Autor: P. H. Skelton, P. B. N. Jackson, D. Tweddle

Publikováno v: Cyprinid Fishes ISBN: 9789401053693

Africa straddles the tropics and contains a wide range of biotopes from rain forests to major deserts. Temperate climates occur only in the extreme south and in restricted zones of high altitude. The western half of the continent is well watered with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9527c83115d6c2559f1f0d5185548f53
https://doi.org/10.1007/978-94-011-3092-9_7

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Reproductive biology of four large riverine fishes (Cyprinidae) in a man-made lake, Orange River, South Africa

Autor: T. Tómasson, J. A. Cambray, P. B. N. Jackson

Publikováno v: Hydrobiologia. 112:179-195

The reproductive biology ofBarbus holubi, B. kimberleyensis, Labeo capensis andL. umbratus was examined in a large reservoir on the Orange River, South Africa. The findings are integrated into the existing knowledge on largeBarbus andLabeo species, w

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https://doi.org/10.1007/bf00008084

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Prediction of regulation effects on natural biological rhythms in south-central African freshwater fish

Autor: P. B. N. Jackson

Publikováno v: Regulated Rivers: Research & Management. 3:205-220

Fish in south-central African freshwaters are governed by biological rhythms. First, these are associated with the markedly seasonal summer annual rainfall when breeding takes place with an initially high mortality among newspawned juveniles. Second,

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https://doi.org/10.1002/rrr.3450030120

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FISH AND FISHERIES OF WETLANDS

Autor: P. B. N. Jackson, M. N. Bruton

Publikováno v: Journal of the Limnological Society of Southern Africa. 9:123-133

SUMMARY The three major wetland types have characteristic fish communities. River-associated wetlands harbour a rich diversity of fishes which can either survive habitat desiccation during the dry-down, or migrate to and fro with the flood. Endorheic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::526218eac513fcf12e3c407613aad8aa
https://doi.org/10.1080/03779688.1983.9632865

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The limnology of Cabora Bassa, Mocambique, during its first year

Autor: Nancy Coe, W. J. Bond, P. B. N. Jackson, K. H. Rogers

Publikováno v: Freshwater Biology. 8:433-447

SUMMARY. Cabora Bassa, a new impoundment in the Middle Zambezi River, was closed in December 1974, filling rapidly to 12m below full supply by May 1975. The lake, with five basins, lies along a west–east axis almost parallel to prevailing south-eas

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https://doi.org/10.1111/j.1365-2427.1978.tb01466.x

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REPLY TO G. FRYER AND P. H. GREENWOOD

Autor: P. B. N. Jackson

Publikováno v: Proceedings of the Zoological Society of London. 144:313-321

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e1f6734562bcc3959f2e7d35ec2b7997
https://doi.org/10.1111/j.1469-7998.1965.tb05182.x

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A new fish of the genus Clarias Gronov. from Lake Nyasa, with notes on the distribution of the Clariidae and other catfishes in the lake

Autor: E. Trewavas, P. B. N. Jackson

Publikováno v: Proceedings of the Zoological Society of London. 125:681-684

Summary A new species of Clarias, C. foveolatus nov., from deep water in Lake Nyasa, is described and figured. Other new clariids occur, probably constituting with the known endemic forms a species-flock of about eight species. Researches indicate th

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https://doi.org/10.1111/j.1096-3642.1955.tb00622.x

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REVISION OF THE CLARIID CATFISHES OF NYASALAND, WITH A DESCRIPTION OF A NEW GENUS AND SEVEN NEW SPECIES

Autor: P. B. N. Jackson

Publikováno v: Proceedings of the Zoological Society of London. 132:109-128

SUMMARY A study was undertaken of catfishes of the family Clariidae in Nyasaland, excluding that small part of the Shire River system which lies below the Murchison cataracts. Of fourteen species found, four, belonging to the genus Clarias, are not e

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https://doi.org/10.1111/j.1469-7998.1959.tb05517.x

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Freshwater fishes

Autor: A. P. Bowmaker, P. B. N. Jackson, R. A. Jubb

Publikováno v: Biogeography and Ecology of Southern Africa ISBN: 9789400999534

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https://doi.org/10.1007/978-94-009-9951-0_36

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The Zambezi River system

Autor: B. R. Davies, P. B. N. Jackson

Publikováno v: The Ecology of River Systems ISBN: 9789048185153

The Zambezi River system, lying between 24–38°E, 12–20°S, is the largest of the African systems flowing into the Indian Ocean (Balek 1977) and consists of three sections (Jubb 1967): Upper, from sources to the Victoria Falls (1078 km); Middle,

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https://doi.org/10.1007/978-94-017-3290-1_7

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