Erratum: An investigation into iron-stimulated phytoplankton productivity in epipelagic Lake Erie during thermal stratification using trace metal clean techniques

Abstract

Fig. 3. Periodogram of wave heights obtained at hourly intervals from Weather Buoy 45142 (42.7°N, 79.3°W) over the 30-day (n = 720) precruise period in 1996, 1997, and 1998. The inset shows the differential heat gain determined from thermal profiles at Station 23 over the same period (1 cal = 4.1868 J).

Iron Biogeochemistry in Aquatic Systems: From Source to Bioavailability

“…[30][31][32][33] Since the introduction of clean techniques data for lakes are still limited, [34] recent studies highlighted that Fe concentrations are much lower than previously perceived. [20,35] For the lakes studied (Laurentian Great Lakes, Lake Geneva and Lake Kinneret) dFe is reported to be present in concentrations ranging from 0.5 to 312 nM (Table 1). [20,[35][36][37][38][39] The vertical and spatial distributions of dFe have similar patterns in large lakes and in the ocean.…”

“…A spatial gradient of dFe in the epilimnion of lakes has been observed, from nearshore (dFe mean: 31.7 nM) to isolated areas (dFe mean: 1.5 nM), showing a strong increase of dFe concentration along the coastline as a result of lake-edge sources. [20,35,41] Elevated Fe concentrations are indeed generally found in near-shore waters, [64] often in the range of 100-1000 times higher than that found in the open ocean. [6] Despite a relatively high concentration of Fe in rivers, [64] very little riverine Fe reaches the open ocean as most of it is removed by precipitation, coagulation, and sedimentary processes favoured by the increase of salinity in estuaries.…”

“…Studies based on natural lake waters highlighted Fe deficiencies and limitations. [18][19][20][21] It was demonstrated that Fe additions, using bioassay approaches, can stimulate phytoplankton growth and photosynthetic efficiency. [20] A recent study conducted in Lake Geneva, showed similar results, with an increase of in vivo chlorophyll a content in Fe-enriched treatments.…”

“…[18][19][20][21] It was demonstrated that Fe additions, using bioassay approaches, can stimulate phytoplankton growth and photosynthetic efficiency. [20] A recent study conducted in Lake Geneva, showed similar results, with an increase of in vivo chlorophyll a content in Fe-enriched treatments. [22] These results suggest that the phytoplankton communities of these lakes are at least Fe stressed, or even, Fe limited.…”

“…[22] These results suggest that the phytoplankton communities of these lakes are at least Fe stressed, or even, Fe limited. [20,21]…”