Published Data Library (PDL)
D325 nitrogen fixation from bioassay experiments
Nitrogen fixation from bioassay experiments by stable-isotope mass spectrometry on UKSOLAS cruise D325.
Rees A. (1);
Al-Moosawi L. (1)
(1) Plymouth Marine Laboratory
A series of bioassay type experiments were determined to investigate the impact of iron, zinc, cobalt, copper and nitrogen on rates of Nitrogen fixation. Experiments were performed from near surface waters using 15N methodology at 6 different oceanographic stations in the vicinity of the Cape Verde Islands (north-east Atlantic) between 13 November and 18 December 2007 onboard RRS Discovery. Stations were selected from remotely sensed information on surface chlorophyll concentrations to give a gradient of conditions between 0.06 and 0.38 µg L-1. The experiment was largely inconclusive, though at stations A there was evidence of limitation by Zn, Co and Cu. Interestingly Cu seemed to play a limiting role at other stations whilst nitrogen additions largely decreased rates below natural levels.
|Temporal coverage||17 November 2007 - 13 December 2007|
|Spatial coverage||Northeast Atlantic Ocean (40W)|
|Discovery metadata record||Link to the related European Directory of Marine Environmental Data (EDMED) record|
|Publisher||British Oceanographic Data Centre - Natural Environment Research Council, UK|
|Publication date||17 January 2012|
|Digital Object Identifier (DOI)||doi:10.5285/b4d08055-8c3f-45b2-a7c6-15f8382261b3|
|Citation text||Rees A.; Al-Moosawi L.(2012). Nitrogen fixation from bioassay experiments by stable-isotope mass spectrometry on UKSOLAS cruise D325. British Oceanographic Data Centre - Natural Environment Research Council, UK. doi:10/mpt.|