SFOS_logo

Sea ice algae, a major food source for herbivorous plankton and benthos in the eastern Bering Sea.

http://www.nsf.gov/images/logos/nsf1.jpg

funded by NSF through award 0732767

Project highlights and milestones

Contact Picture gallery Links and useful resources Home

Cruise participation

2008: HLY 0801 and 0802

2009: HLY 0901 and 0902, Knorr 195-10

2010 PSEA 10-01, Thompson TN249 and 250

 

Publications:

 

Laura V. Morales, Julie Granger Bonnie X. Chang, Maria G. Prokopenko, Birgit Plessen, Rolf Gradinger, Daniel M. Sigman (2014): Elevated 15N/14N in particulate organic matter, zooplankton, and diatom frustule-bound 1 nitrogen in the ice covered water column of the Bering Sea eastern shelf. Deep Sea Res in press

Wang SW, Budge SM, Gradinger RR, Iken K, Wooller MJ (2013) Fatty acid and stable isotope characteristics of sea ice and pelagic particulate organic matter in the Bering Sea: tools for estimating sea ice algal contribution to Arctic food web production. Oecologia:1-14

Nelson RJ, Ashjian C, Bluhm B, Conlan K, Gradinger R, Grebmeier J, Hill V, Hopcroft R, Hunt B, Joo H, Kirchman D, Kosobokova K, Lee S, Li W, Lovejoy C, Poulin M, Sherr E, Young K (2013) Biodiversity and biogeography of the lower trophic fauna of the Pacific Arctic region – sensitivities to climate change. In: Grebmeier JM, Maslowski W, Zhao J (eds) The Pacific Arctic sector: status and trends.Springer. in press

Cooper LW, Sexson MG, Grebmeier JM, Gradinger R, Mordy CW, Lovvorn JR (2013) Linkages Between Sea-Ice Coverage, Pelagic-Benthic Coupling, and the Distribution of Spectacled Eiders: Observations in March 2008, 2009 and 2010, Northern Bering Sea. Deep Sea Research Part II: Topical Studies in Oceanography. http://dx.doi.org/10.1016/j.dsr2.2013.03.009

Weems J, Iken K, Gradinger R, Wooller MJ (2012) Carbon and nitrogen assimilation in the Bering Sea clams Nuculana radiata and Macoma moesta. Journal of Experimental Marine Biology and Ecology 430-431: 32-42.

Petrich C, Nicolaus M, Gradinger R (2012) Sensitivity of the light field under sea ice to spatially inhomogeneous optical properties and incident light assessed with three-dimensional Monte Carlo radiative transfer simulations. Cold Regions Science and Technology 73: 1-11.

Moran SB, M.W. Lomas, R.P. Kelly, K. Iken, R. Gradinger, Mathis JT (2012) Seasonal succession of net primary productivity, particulate organic carbon export, and autotrophic community composition in the eastern Bering Sea. Deep-Sea Research II, 65-70: 84-97

Poulin M, Daugbjerg N, Gradinger R, Ilyash L, Ratkova T, et al. (2011) The pan-Arctic biodiversity of marine pelagic and sea-ice unicellular eukaryotes: a first-attempt assessment. Marine Biodiversity 41: 13-28-28

 

for a list of all BEST/BSIERP publication, visit http://bsierp.nprb.org/results/publications.html

 

Presentations:

Iken K, Bluhm BA, Gradinger R, Weems J. Importance of sea ice versus water column production for zooplankton consumers in the Bering Sea. Alaska Marine Science Symposium, Anchorage, January 2013 (poster)

Gradinger R, Iken K, Bluhm BA. Sedimentation processes under the seasonal sea ice of theBering Sea. International Polar Year Conference: From Knowledge to Action, Montreal Canada, 22-27 April 2012 (talk)

Gradinger R, Iken K, Bluhm BA. Sedimentation processes under the seasonal sea ice of the Bering Sea. Ocean Sciences Meeting. Salt Lake City, 20-24 February 2012 (poster)

Gradinger R, Iken K, Bluhm BA. Sedimentation processes under the seasonal sea ice of the Bering Sea. Alaska Marine Science Symposium, Anchorage, 16-20 January 2012 (poster)

Oxtoby L, Budge S, Wang S, Horstmann-Dehn L, Iken K, Gradinger R, Wooller M. Carbon cycling in the Bering Sea benthos: Gaining insight from fatty acids. Alaska Marine Science Symposium, Anchorage, 16-20 January 2012 (poster)

Gradinger R, Iken K, Bluhm BA. Sedimentation processes under the seasonal sea ice of the Bering Sea. ESSAS 2011 Open Science Meeting: Comparative studies of climate effects on polar and sub-polar ecosytems: progress in observation and prediction. Seattle, 22-26 May 2011 (talk)

Iken K, Gradinger R, Weems J, Bluhm B. Importance of ice algae on pelagic and benthic consumers in the Bering Sea. BEST PI science meeting, Anchorage AK, 22-23 March 2011 (poster)

Iken K, Gradinger R, Weems J, Bluhm B. Importance of ice algae on pelagic and benthic consumers in the Bering Sea. Alaska Marine Science Symposium. Anchorage Alaska, Jan 2011 (poster)

Weems J, Iken K, Gradinger R, Bluhm B, Wooller M. Isotopic assimilation in the bivalve Nuculana radiata: possible trophic consequences in changing Bering Sea ice-benthic coupling. Alaska Marine Science Symposium. Anchorage Alaska, Jan 2011 (talk)

Iken K, Gradinger R, Weems J, Bluhm B. Importance of ice algae on pelagic and benthic consumers in the Bering Sea. 7th International Conference on Applications of Stable Isotope Techniques to Ecological Studies. 9-13 August 2010, Fairbanks Alaska (poster)

Weems J, Iken K, Gradinger R, Bluhm B, Wooller M. Slow isotopic turnover in benthic Bering Sea biota after feeding on isotopically labeled ice algae.7th International Conference on Applications of Stable Isotope Techniques to Ecological Studies. 9-13 August 2010, Fairbanks Alaska (poster)

 

Outreach/Education

The Alaska Sea Life Center virtual field trip project developed an educational outreach site called Meltdown, an icy adventure for grades 5-8. Our project provided contents and assistance.

Gradinger co-instructed an interdisciplinary field ice course in Barrow, Alaska in spring 2013.

Gradinger participated in a phone conference with an undergraduate class of Dr. Frey from Clark Universit in 2008. Outreach activities involved two presentations of Gradinger in Dutch Harbor, discussions with videographers during 0801, support of one IPY project of Christian Morel and participation in phone outreach events during 0801 and 0802 with tudents from Clark University.

Pictures taken by Christian Morel in 2008 were contributing to his OUR POLAR HERITAGE PHOTO EXHIBITION(http://www.ourpolarheritage.com/) at the U.N. building in Geneva and during the 2012 IPY Conference in Montreal.

Gradinger contributed in 2008 to the "Ice Stories" series of the Exploratorium highlighting the search for Life in sea ice.

During the 2009 expedition, Gradinger participated in several phone outreach events, including the central IPY polar week. Furthermore we contributed to several NRPB and PolarTREC web based outreach features (e.g.http://bsierp.nprb.org/fieldwork/2009/healy_0901_log.html).

Host Elizabeth Arnold cruised on the USCG icebreaker Healy in spring 2009 and reports on the relevance of sea ice algae (listen to Encounter Radio. mp3 file).

 

 

We also posted several youtube videos and contributed to the NOVA video documentation entitled "On thin ice."

page modified January 17, 2014 .