Zobrazeno 1 - 10
of 28
pro vyhledávání: '"W R C, Beaumont"'
Autor:
D. T. Crisp, W. R. C. Beaumont
Publikováno v:
Hydrology and Earth System Sciences, Vol 1, Iss 3, Pp 541-548 (1997)
In Plynlimon streams, brown trout (Salmo trutta L.) are widespread in the upper Wye at population densities of 0.03 to 0.32 fish m-2 and show evidence of successful recruitment in most years. In the upper Severn, brown trout are found only in an area
Externí odkaz:
https://doaj.org/article/2143d9a77d31480f95d152db58c20edc
Autor:
Didier Azam, W. R. C. Beaumont, Gaetan Pottier, Pierre-Yves Le Bail, Régis Vigouroux, Frédéric Marchand, Jean-Marc Roussel, Jacques Rives
Publikováno v:
Fisheries Management and Ecology
Fisheries Management and Ecology, Wiley-Blackwell, 2020, 27 (1), pp.52-63. ⟨10.1111/fme.12384⟩
Fisheries Management and Ecology, Wiley-Blackwell, 2020, 27 (1), pp.52-63. ⟨10.1111/fme.12384⟩
International audience; Electrofishing in streams of low water conductivity has technical limitations leading to the widespread use of poison fishing. In theory, provided a high enough voltage gradient can be created in water, electrofishing should b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33948cbb28e89d4f3ae933d67420cda3
https://hal.archives-ouvertes.fr/hal-02299640
https://hal.archives-ouvertes.fr/hal-02299640
Publikováno v:
Journal of fish biology. 92(3)
Recent research has identified genetic groups of Atlantic salmon Salmo salar that show association with geological and environmental boundaries. This study focuses on one particular subgroup of the species inhabiting the chalk streams of southern Eng
Autor:
W. R. C. Beaumont
Electricity in Fish Research and Management, 2nd Edition provides a comprehensive discussion of the uses of both electricity and electrical principles in fishery management and research. It covers electric fishing (including theory, equipment, data a
Autor:
W. R. C. Beaumont
Publikováno v:
North American Journal of Fisheries Management. 37:429-430
Autor:
J. Robert Britton, Anthony Acou, W. R. C. Beaumont, Julien Cucherousset, Rodolphe E. Gozlan, Simon Blanchet
Publikováno v:
Oecologia. 167:75-84
Individual specialisation can lead to the exploitation of different trophic and habitat resources and the production of morphological variability within a pop- ulation. Although the ecological causes of this phenome- non are relatively well known, it
Autor:
Lucia Privitera, Anton T. Ibbotson, N. Lower, S. Mizuno, W. R. C. Beaumont, Alastair C. Cook, A. Moore, Adrian C. Pinder, W. D. Riley
Publikováno v:
Freshwater Biology. 53:745-755
1. About 25 % of juvenile Atlantic salmon (Salmo salar) migrating downstream in the River Frome in southern England do so in the autumn rather than in the spring. Here, we examine the physiological status of these fish with regard to those features t
Publikováno v:
Journal of Fish Biology. 71:260-264
The use of passive integrated transponder technology facilitated the first observations of the autumn migration of 0+ year Atlantic salmon Salmo salar parr into tidal rearing habitats in the U.K. The quality of these habitats in relation to smolt pro
Publikováno v:
Ecology of Freshwater Fish. 15:544-551
– The real-time diel pattern of Atlantic salmon smolt migration was observed for 8 years using automatic resistivity counters verified by video surveillance. A clear dominant nocturnal migration was demonstrated early in the migration period, later
Publikováno v:
Fisheries Management and Ecology. 13:47-52
The relationship between applied anode voltage, ring anode diameter and distance to specific voltage gradient values was modelled from empirical measurements. The model allowed distance to specific voltage gradients to be predicted. Varying the anode