Výsledky vyhledávání

Cichlid spawning structures – bowers or nests?

Autor: David H. Eccles, Rosemary Lowe-McConnell, Denis Tweddle, Peter B. N. Jackson, Geoffrey Fryer, Digby S C Lewis, Clifford B. Frith

Publikováno v: Environmental Biology of Fishes. 51:107-109

Males of mouthbrooding cichlids build sand-castle or sand-scrape structures. These are used as display sites to attract females, eggs are laid and inseminated there and then taken away by the female for brooding elsewhere. It has been suggested that

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0664d17bd1b050fb1357d55614a47a11
https://doi.org/10.1023/a:1007320130105

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Cyprinids of Africa

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

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::07c501b4b4e5904effee157be5d8ac9d
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,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bc673a25fb5d0752a4cbaedf46043108
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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Unique qualities and special problems of the African Great Lakes

Autor: Robert C. Hart, Michael N. Bruton, Brian R. Allanson, P. Humphry Greenwood, Anthony J. Ribbink, Peter B. N. Jackson, George W. Coulter

Publikováno v: Environmental Biology of Fishes. 17:161-183

The African Great Lakes consist of large, deep rift valley lakes (e.g. Malawi & Tanganyika) and shallower lakes between the Eastern and Western Rifts (e.g. Victoria). They are a group comparable in size to the North American Great Lakes, but are old.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c22f20081424bfd66a648dc10527fd4d
https://doi.org/10.1007/bf00002094

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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

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f28e19d4f564f3444db3b2e566e13256
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

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cc22c55494c630f9930c02aab8d5ddc6
https://doi.org/10.1111/j.1096-3642.1955.tb00622.x

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