nieuwe zoekopdracht
[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina

Monitoring rocky-shore communities: a critical look at spatial and temporal variation
Hartnoll, R.G.; Hawkins, S.J. (1980). Monitoring rocky-shore communities: a critical look at spatial and temporal variation, in: Kinne, O. et al. (Ed.) Protection of life in the sea: 14th European Marine Biology Symposium, 23-29 September 1979, Helgoland. Helgoländer Meeresuntersuchungen, 33(1-4): pp. 484-494
In: Kinne, O.; Bulnheim, H.-P. (Ed.) (1980). Protection of life in the sea: 14th European Marine Biology Symposium, 23-29 September 1979, Helgoland. Helgoländer Meeresuntersuchungen, 33(1-4). Biologische Anstalt Helgoland: Hamburg. 772 pp.
In: Helgoländer Meeresuntersuchungen. Biologische Anstalt Helgoland: Hamburg. ISSN 0174-3597
Peer reviewed article  

Beschikbaar in  Auteurs 
Documenttype: Congresbijdrage

Trefwoord
    Marien

Auteurs  Top 
  • Hartnoll, R.G.
  • Hawkins, S.J.

Abstract
    Increasingly programmes are being set up to monitor rocky-shore communities in order to provide baseline data which will indicate changes resulting from subsequent pollution. However, these efforts are complicated by several factors. Firstly, there are overall changes in the composition of communities both within and between years. Secondly, there is variation within certain communities due to a mosaic distribution of components, the mosaic format changing continuously with a cycle of several years. This paper reports on studies of a medium-exposed rocky shore in the Isle of Man (U. K.). It describes patterns of spatial and temporal variation, and looks at certain implications for monitoring programmes: (a) the frequency of sampling, and the duration of the sampling programme, in the light of seasonal and long-term variation; (b) the efficiency, in terms of the minimisation of variability, of sampling the same area by different strategies - belt transects, small random quadrats, single large quadrat; (c) the effect of the distribution patterns of some commoner species on the variation between samples.

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteurs 
IMIS is ontwikkeld en wordt gehost door het VLIZ, voor meer informatie contacteer .