The fish community of Loch Lomond, Scotland: its history and rapidly changing status

  title={The fish community of Loch Lomond, Scotland: its history and rapidly changing status},
  author={Colin E. Adams},
  • C. Adams
  • Published 1 September 1994
  • Environmental Science
  • Hydrobiologia
The fish community of Loch Lomond is of national importance. Its diversity of species and rare populations of powan (Coregonus lavaretus) and freshwater feeding river lampreys (Lampetra fluviatilis) warrant high conservation status. It is also of value for its sport fisheries for sea-trout (Salmo trutta), salmon (Salmo salar) and pike (Esox lucius). Historical records demonstrate that the species composition of the fish community has remained stable over a very long period until recently when a… 
Bream (Abramis brama), a new fish species confirmed in Loch Lomond
Loch Lomond is of national importance because of its range of habitats, diversity of species and rare populations of powan and freshwater feeding river lampreys, which warrant high conservation status.
Morphological and ecological responses to a conservation translocation of powan (Coregonus lavaretus) in Scotland
The hypothesis that phenotypic changes have occurred during the formation of two refuge populations of the nationally rare powan which were established in Loch Sloy and Carron Valley Reservoir in Scotland is examined.
Life histories of the powan, Coregonus lavaretus (L.) (Salmonidae, Coregoninae) of Loch Lomond and Loch Eck
Four aspects of the life histories of the two populations of powan Coregonus lavaretus (L.) in Scotland are described: growth (Eck powan are shorter and with greater year to year variance than
Aspects of the conservation biology of Coregonus lavaretus in Britain
It is argued that the recent designation of seven native C. lavaretus populations as three endemic species are incorrect and cannot be substantiated and the establishment of further refuge populations are considered to be a viable conservation action.
Long-term change in river invertebrate communities
It is argued that reference condition predictions, like those obtained from the RIVPACS programme, may not be suitable when assessing the ecological health of a river subjected to long-term modification from human activity, like the River Clyde.
Evidence of a recent decline in river lamprey Lampetra fluviatilis parasitism of a nationally rare whitefish Coregonus lavaretus: is there a diamond in the ruffe Gymnocephalus cernuus?
Evidence presented in this study points to the possibility that L. fluviatilis in this lake may have altered its trophic ecology in response to the negative impact that non-native species, in particular ruffe Gymnocephalus cernuus, have had on their favoured host.
An investigation into the causes and consequences of variability in community structure in a large freshwater loch
There was no clear relationship between trophic niche width and individual fitness in Loch Lomond, and the delta15N technique was used to explore a number of hypotheses related to the effect of community structure on trophi niche width, leading to the conclusion that the physical factors of a study site were more important than community structure in controlling trophIC niche width of ruffe.
A comparative study on the feeding of eel, Anguilla anguilla (L.), bream, Abramis brama (L.) and ruffe, Gymnocephalus cernuus (L.) in Lake Võrtsjärv, Estonia
The stomach contents of eel, bream and ruffe were examined in order to detect the diet overlap and possible food competition between these benthophagous fishes in the eutrophic Lake Võrtsjärv. The
Has habitat heterogeneity promoted phenotypic and ecological sub-structuring among a Coregonus lavaretus population in a large Scottish lake?
Investigation of stable-isotope values, morphology and ecology in whitefish Coregonus lavaretus found no evidence of the existence of sympatric morphs in the population, and foraging fidelity between basins of Loch Lomond was indicated.
Cladocera in mountain lakes: Their potential role in reconstructing climate change.
  • G. Kattel
  • Environmental Science, Geography
  • 2005
Research on climate change is becoming increasingly important to understand its multifaceted impacts on ecosystems at the present day and to identify patterns of natural climate variability and their


Loch Lomond: Man's Effects on the Salmonid Community
Loch Lomond, the largest area of fresh water in Great Britain, has been utilised by man for many hundreds of years. There are fifteen species offish at present in the loch: all of these are native.
Fish Introductions into North America: Patterns and Ecological Impact
  • P. Moyle
  • Environmental Science, History
  • 1986
The transplantation of fishes has a long history in Western culture, beginning with the Romans, who brought carp (Cyprinus carpio) from the Danube River to Italy (Balon 1975). As Christianity spread
Life histories of the powan, Coregonus lavaretus (L.) (Salmonidae, Coregoninae) of Loch Lomond and Loch Eck
Four aspects of the life histories of the two populations of powan Coregonus lavaretus (L.) in Scotland are described: growth (Eck powan are shorter and with greater year to year variance than
Conservation of freshwater fish in the British Isles: the status of fish in national nature reserves
1. To consider fully the conservation management of freshwater fish, it was important to know which fish were already in the protected environment of National Nature Reserves (NNRs) — the principal
Powan, Coregonus lavaretus (L.), ova predation by newly introduced ruffe, Gymnocephalus cernuus (L.), in Loch Lomond, Scotland
Analysis of the gut contents of fish caught on powan spawning grounds in Loch Lomond showed that they, as well as native brown trout, Salmo trutta L., and powan themselves, prey upon powan ova.
Shift in pike, Esox lucius L., predation pressure following the introduction of ruffe, Gymnocephalus cernuus (L.) to Loch Lomond
Comparison of the predation rate in 1955–1967 with 1989–1990 supports the hypothesis that the rate of predation on powan has declined, although the effect that this may have on the powan population is unclear, as the role ofpredation in the regulation of population size is unknown for this species.
The ecology of lampreys (Petromyzonidae) in the Loch Lomond area
All three lamprey species occurring in western Europe are found in the Loch Lomond area: Sea Lamprey Petromyzon marinus L., River Lamprey Lampetra fluviatilis (L.) and Brook Lamprey Lampetra planeri
An introduction to Loch Lomond
Loch Lomond is the largest area of freshwater in Great Britain. It is situated near Glasgow, the largest centre of population in Scotland and more than half the population of Scotland, about 2.6
Elevated predation risk associated with inshore migrations of fish in a large lake, Loch Lomond, Scotland
Investigations into the conflict that occurs between the need to perform some high risk activity and theneed to avoid being preyed upon, have focused almost exclusively on laboratory studies of the relationship between foraging and the risk of predation in individuals.
Observations on the age, growth, reproduction and food of the dace, Leuciscus leuciscus (L.), in two rivers in southern England
Most dace were mature by age IV, but there were more mature II and III group fish in the Frome population, and molluscs and Trichoptera larvae comprised the bulk of the winter diet of Stour dace, and Ephemeroptera nymphs, Simulium and chironomid larvae were the principal constituents during the summer.