Zoeken
Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.
Boekenmand
Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).
RSS
Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.
nieuwe zoekopdracht
The production ecology of the subtidal benthos of the Forth Estuary, Scotland
Elliott, M.; Taylor, C.J.L. (1989). The production ecology of the subtidal benthos of the Forth Estuary, Scotland, in: Ros, J.D. (Ed.) Topics in Marine Biology: Proceedings of the 22nd European Marine Biology Symposium, Barcelona, Spain, August 1987. Scientia Marina (Barcelona), 53(2-3): pp. 531-541
In: Ros, J.D. (Ed.) (1989). Topics in marine biology: Proceedings of the 22nd European Marine Biology Symposium, Barcelona, Spain, August 1987. European Marine Biology Symposia, 22. Scientia Marina (Barcelona), 53(2-3). 145-754 pp.
In: European Marine Biology Symposia.
|
| Beschikbaar in | Auteurs |
|
Documenttype: Congresbijdrage
|
| Auteurs | | Top |
- Elliott, M.
- Taylor, C.J.L.
|
|
|
| Abstract |
The high productivity of estuarine intertidal macrobenthos has been well documented but less is known of the productivity of subtidal areas adjacent to those intertidal areas and of the relationship between the two areas. This study assessed the subtidal macrobenthic biomass and production of the Forth, an industrialised Scottish estuary bordering the North Sea. The findings are based on a synoptic study of 80 stations and an intensive study over a 15 month period at 2 stations typical of certain benthic associations. In general, the subtidal populations were relatively unproductive. The assessment of the production of 6 polychaete species resulted in P/B values lower than those in the literature for polychaetes in general. However, the specific comparison of Nephtys spp. shows the Forth populations to be smaller but with P/B similar to those found elsewhere. In contrast, the echiurid Echiurus echiurus (Pallas) had a short life span and higher productivity (P/B: 4.73) and a correspondingly large impact on the community. By incorporating data for the intertidal areas, the study shows that with a progression down the estuary and for a given area, the subtidal production increases while that for the intertidal decreases. The biomass and production of the poorest subtidal areas were lower than those for the intertidal by up to two orders of magnitude. It is of significance to the predator populations that although the subtidal area was almost 70 % of the total, its biomass and production were 38 % and 47 % respectively. These findings have implications when considering the functioning of an estuary in relation to anthropogenic changes. The loss of intertidal area through reclamation or pollution effects will have a disproportionate effect on the system because of the depressed subtidal productivity. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
