Agent Based Modelling (ABM) of eelgrass (Zostera marina) seedbank dynamics in a shallow Danish estuary

Kadri Kuusemäe, Miriam von Thenen, Troels Lange, Erik Kock Rasmussen, Michael Pothoff, Ana I. Sousa and Mogens R. Flindt

Ecological Modelling, 2018, vol. 371, issue C, 60-75

Abstract: Odense Fjord (Denmark) has suffered from a drastic decline in eelgrass (Zostera marina) coverage during the last decades. In 1983 eelgrass still covered about 25% of the estuary, which in 2005 was reduced to less than 2%. The alarming decline in the past decades initiated preliminary restoration activities, where it was questioned whether the present low eelgrass biomass is able to produce a sustainable seed bank to support natural recovery. Field studies verified that the seed bank was hampered. Laboratory experiments were conducted to determine 1) seed dispersion along the sediment surface and in the water column; 2) settling rates of seeds and flowering shoots; 3) critical current speed for seed movement; 4) floating dynamic of flowering shoots and 5) seed dropping dynamics during transport of rafting shoots.

Keywords: ABM modelling; Seagrass; Seed bank dynamics; Restoration & recovery; Seed loss; Seedling establishment (search for similar items in EconPapers)
Date: 2018
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecomod:v:371:y:2018:i:c:p:60-75

DOI: 10.1016/j.ecolmodel.2018.01.001

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