Publication Date:
2009-11-11
Description:
As climate changes and the upper Arctic Ocean receives more heat and fresh water, it becomes more difficult for mixing processes to deliver nutrients from depth to the surface for phytoplankton growth. Competitive advantage will presumably accrue to small cells because they are more effective in acquiring nutrients and less susceptible to gravitational settling than large cells. Since 2004, we have discerned an increase in the smallest algae and bacteria along with a concomitant decrease in somewhat larger algae. If this trend toward a community of smaller cells is sustained, it may lead to reduced biological production at higher trophic levels.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, William K W -- McLaughlin, Fiona A -- Lovejoy, Connie -- Carmack, Eddy C -- New York, N.Y. -- Science. 2009 Oct 23;326(5952):539. doi: 10.1126/science.1179798.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Fisheries and Oceans Canada, Bedford Institute of Oceanography, Dartmouth, NS B2Y 4A2, Canada. LiB@mar.dfo-mpo.gc.ca〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19900890" target="_blank"〉PubMed〈/a〉
Keywords:
Arctic Regions
;
Bacteria/cytology/growth & development
;
Biomass
;
*Ecosystem
;
Eukaryota/cytology/*growth & development
;
Oceans and Seas
;
Phytoplankton/cytology/*growth & development
;
Population Dynamics
;
Salinity
;
*Seawater/chemistry/microbiology
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
