Zobrazeno 1 - 10
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pro vyhledávání: '"J R, Britton"'
The introduced species fishery of Lake Naivasha, Kenya: ecological impact vs socio-economic benefits
Publikováno v:
Fisheries Management and Ecology. 22:326-336
Lake Naivasha is a shallow, freshwater lake in the eastern Rift Valley of Kenya. Its fish community now comprises only introduced species. Oreochromis spirulus niger was stocked in 1925 as a forage fish for the largemouth bass, Micropterus salmoides,
Publikováno v:
Journal of fish biology. 92(3)
A general framework is presented that should enhance our understanding of how intrinsic factors, such as body size, and extrinsic factors, such as climate, affect the dynamics and demographics of fish populations. Effects of intrinsic factors, notabl
Publikováno v:
Journal of fish biology. 89(3)
This paper presents the first phase in the development and validation of a simple and reliable environmental (e)DNA method using conventional PCR to detect four species of non-native freshwater fish: pumpkinseed Lepomis gibbosus, sunbleak Leucaspius
Publikováno v:
Fisheries Management and Ecology. 16:248-254
In England and Wales, freshwater anglers have shifted their behaviour towards visiting catch-and-release lake fisheries that are intensively stocked, mainly of large common carp, Cyprinus carpio L., to maintain high catch rates. Of 187 fish kills inv
Publikováno v:
Aquatic Conservation: Marine and Freshwater Ecosystems. 18:867-876
1. The topmouth gudgeon Pseudorasbora parva has proved to be a highly invasive pest fish species in mainland Europe following introduction from Asia, and was first recorded in the wild in the UK in 1996. Distribution has increased markedly since 2002
Publikováno v:
Journal of Fish Biology. 72:1023-1034
Check formation on scales of roach Rutilus rutilus was examined during their production cycle at a fish farm in England through analysis of circuli patterns. Regular check formation was associated with the movement of fish from one type of grow-out f
Publikováno v:
Journal of Fish Biology. 71:239-257
Following the accidental introduction of the carp Cyprinus carpio into Lake Naivasha during 1999, a sustainable population became rapidly established and in early 2004 became the principal species exploited in the commercial fishery. Over 9000 kg of
Publikováno v:
Journal of Fish Biology. 71:1810-1819
The fork length (LF) of individual chub Leuciscus cephalus in English riverine populations at the end of their first growth season varied considerably, ranging from 70 mm. This had a significant influence on the subsequent growth of individuals over
Autor:
J. R. Britton
Publikováno v:
Journal of Applied Ichthyology. 23:555-560
Summary Comparative assessments of population mean growth rates in length remain important aspects of stock assessment in river fisheries. To facilitate these assessments, for 15 fish species encountered in UK rivers reference data are provided on th
Publikováno v:
Freshwater Biology. 52:1576-1586
Summary 1. Climatic effects are increasingly being recognised as an important factor causing inter-annual variability in organism abundances in aquatic and terrestrial ecosystems. This study investigated the relationships between water temperature (c