Zobrazeno 1 - 10
of 49
pro vyhledávání: '"G.J.A. Kennedy"'
Publikováno v:
Fisheries Management and Ecology. 13:73-79
A total of 118 wild Atlantic salmon, Salmo salar L., females were stripped at the River Bush Salmon Station. The total number of eggs (fecundity) and egg diameters were compared for three age groups of adults. Adult length explained the majority of t
Publikováno v:
Fisheries Research. 62:143-170
The distributions and abundances of trout and salmon are strongly influenced by their habitat. The habitat includes both abiotic and biotic factors, which interact in complex webs. Habitat probably has strongest effects during population bottlenecks,
Autor:
W. W. Crozier, G.J.A Kennedy
Publikováno v:
Fisheries Research. 59:209-215
Migrating wild salmon smolts on the R. Bush, Northern Ireland, are tagged with coded wire tags (CWTs), as part of a study of salmon marine survival. We report the results of a comprehensive comparison of the effects of tagging on wild smolt survival,
Publikováno v:
Fisheries Research. 32:81-88
To evaluate proposals to use commercially farmed Atlantic salmon strains for stocking and ranching purposes, parr from two non-native origin, multi sea winter (MSW) strains (A and B) were brought to the River Bush, Northern Ireland, reared and releas
Publikováno v:
Fisheries Management and Ecology. 4:385-390
Autor:
G.J.A. Kennedy, W. W. Crozier
Publikováno v:
Fisheries Management and Ecology. 4:103-110
Information on marine and freshwater survival and exploitation of River Bush salmon was developed into a model illustrating the potential ranges of grilse production per 1000 smolts. Values were attributed to the grilse ‘crop’ at each of three po
Publikováno v:
Fisheries Management and Ecology. 4:49-53
Five external marks (Panjet, visible implant tag, hot brand, anal finclip and fluorescent pigment) were compared for retention and effect on marine survival in Atlantic salmon, Salmo salar L., ranching experiments aimed at complementing coded wire ta
Publikováno v:
Fisheries Management and Ecology. 3:35-44
Artificial reconditioning of Atlantic salmon in fresh water over two successive years produced kelt survival rates of 28% and 55% in years one and two, respectively. Eye damage and failure to identify non-feeders were important factors contributing t
Autor:
W. W. Crozier, G.J.A. Kennedy
Publikováno v:
Fisheries Research. 19:141-155
A quantitative analysis of marine exploitation of River Bush Atlantic salmon in high seas and homewater fisheries during the period 1984–1991 has been carried out, based on 128 150 microtagged smolt releases and 7003 adult recaptures. Exploitation
Autor:
G.J.A. Kennedy
Publikováno v:
Animal Behaviour. 29:621-625
The ability of minnows to accept home ranges in aquarium tanks was confirmed. Observation of individually marked fish indicated that there was variation in the tendency for individual movement. Minnows which spent the majority of their time at home s