Significance of advective transport of Ulva lactuca for a biomass budget on a shallow water location
In: Ecological Modelling. Elsevier: Amsterdam; Lausanne; New York; Oxford; Shannon; Tokyo. ISSN 0304-3800; e-ISSN 1872-7026, meer
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| Trefwoorden |
Algal blooms
ANE, Denmark, Roskildefjord
Behaviour > Feeding behaviour > Grazing
Denmark
Dispersion > Biological drift
Floating
Motion > Atmospheric motion > Winds
Population characteristics > Biomass
Population functions > Growth
Transport processes
Transport processes > Advection
Velocity > Wind speed
Ulva lactuca Linnaeus, 1753 [WoRMS]
Denmark [Marine Regions]; Roskilde fjord [Marine Regions]
Marien/Kust |
| Auteurs | | Top |
- Salomonsen, J.
- Flindt, M.R.
- Geertz-Hansen, O.
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| Abstract |
Ulva lactuca biomass, growth and grazing rates and drifting biomass was measured in the early summer period at a 1 m deep near-shore station in a sheltered bay in Roskilde Fjord, Zealand, Denmark. The expected biomass was calculated for each sampling date and compared with the measured. Regression analyses were performed between drifting biomass and the relative difference between measured and calculated biomass (R² = 0.65, P < 0.054) and between wind velocities and drifting biomass (R² = 0.42, P < 0.057). Although not significant at the 5% level, the results indicated that advective transport was significant for balancing the biomass budget of U. lactuca. It is therefore proposed that dynamic modelling of U. lactuca should be based on a transport /dispersion model. |
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