Remote and local monitoring of dissolved and suspended fluorescent organic matter off the svalbard

M. Cisek, F. Colao, E. Demetrio, A. Di Cicco, V. Drozdowska, L. Fiorani, I. Goszczko, V. Lazic, I.G. Okladnikov, A. Palucci, J. Piechura, C. Poggi, M. Sighicelli, W. Walczowski, P. Wieczorek

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Abstract

Distribution maps of CDOM and algal pigments, both in superficial and deep waters, have been obtained operating a portable dual laser spectrofluorometer and a lidar fluorosensor equipments for the first time during two polish AREX oceanographic campaigns in 2006 and 2007 summertime in the Svalbard area. The different hydrological regimes strongly affected the biological factors in the waters around the Svalbard Islands as monitored during the campaigns with strong regional differentiations between the two years. The occurrence of large phytoplanktonic blooms and patches have been observed in the western area of the Spitsbergen Island coastline due to the nutrient release from pack ice and/or iceberg melting with values of more than 10 μg/l in both campaigns. Different CDOM fractions have been monitored with the remote and local instruments and inverse proportionality with salinity is confirmed along the water column. Phycobilin pigments, as phycoerythrin and phycocyanin accessory algal pigments, have been monitored in the northern area as well as tyrosine and tryptophan protein-like fluorescence distribution. The double filtration, performed with the dual laser spectrofluorometer, allows to retrieve the small fluorescence contribution due to NADPH and carotenoids pigments in the blue fluorescence emission. Successively, the large spectroscopic data base has been critically analyzed with a robust statistic instrument, thus identifying different marine provinces and retrieve distinctive CDOM fractions.
Original languageEnglish
Pages (from-to)1604 - 1618
Number of pages15
JournalJournal of Optoelectronics and Advanced Materials
Volume12
Issue number7
Publication statusPublished - Jul 2010
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Cisek, M., Colao, F., Demetrio, E., Di Cicco, A., Drozdowska, V., Fiorani, L., ... Wieczorek, P. (2010). Remote and local monitoring of dissolved and suspended fluorescent organic matter off the svalbard. Journal of Optoelectronics and Advanced Materials, 12(7), 1604 - 1618.