Increases in seagrass cover are paralleled by decreases in benthic slope along DGPS-and depth tracked video monitoring transacts in the a Central Adriatic embayment (CROSBI ID 581432)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Mokos, Melita ; Kruschel, Claudia ; Schultz, Stewart Tyre
engleski
Increases in seagrass cover are paralleled by decreases in benthic slope along DGPS-and depth tracked video monitoring transacts in the a Central Adriatic embayment
Within the scope of a seagrass monitoring program in the Novigrad Sea, Central Croatian Adriatic, we predicted that the annual variability in coverage of seagrasses (Zostera marina, Zostera noltii, and Cymodocea nodosa) can be partially explained by the annual variability in sediment translocation. From 23 fixed DGPS-referenced monitoring video transects followed over three years (June 2007–2009), we calculated annual (i) changes in interior bed seagrass coverage, (ii) gain in seagrass at the lower edge of the bed and seagrass bed expansion, and (iii) accumulation of sediment, its depth dependence, and the associated changes in transect slope. We found that in 2007 to 2008, the year with net sediment accumulation, seagrass coverage increased and the bed expanded. In both years seagrass cover within the seagrass bed increased with increasing sediment accumulation, while seagrass bed expansion was highest under inter- mediate sedimentation rates. Boat-based videographic monitoring can document both natural sediment movement along the depth gradient, and species-specific responses necessary for informed management of submerged aquatic vegetation in the Adriatic Sea.
seagrass; Zostera; Cymodocea; Novigrad Sea; monitoring; sedimentation
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Podaci o prilogu
39-40.
2009.
nije evidentirano
objavljeno
Podaci o matičnoj publikaciji
Proceedings of the Mediterranean Seagrass Workshop 2009
Di Carlo, G. ; Calladine, A. ; Žuljević, A.
Hvar: Seagrass 2000 - Mediterranean Seagrass Association
Podaci o skupu
Mediterranean Seagrass Workshop 2009
predavanje
06.09.2009-10.09.2009
Hvar, Hrvatska