Mesoscale variability in intact and ghost colonies of Phaeocystis antarctica in the Ross Sea: Distribution and abundance

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• 作者：Walker O. Smith Jr.^a ; ^wos@vims.edu ; Dennis J. McGillicuddy Jr.^b ; ^{dmcgillicuddy@whoi.edu} ; Elise B. Olson^b ; ¹ ; ^{elise.black.olson@gmail.com} ; Valery Kosnyrev^b ; ^{vkosnyrev@whoi.edu} ; Emily E. Peacock^b ; ^{epeacock@whoi.edu} ; Heidi M. Sosik^b ; ^{hsosik@whoi.edu}
• 关键词：Phaeocystis ; mesoscale ; Ross Sea ; Antarctica ; ghost colonies ; carbon
• 刊名：Journal of Marine Systems
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：166
• 期：Complete
• 页码：97-107
• 全文大小：3310 K
• 卷排序：166

文摘

The mesoscale distribution of the haptophyte Phaeocystis antarctica was documented using VPR technology in three regions of the Ross Sea. A form never reported for this species – ghost colonies – was observed. This morphotype appeared to be devoid of cells, generally was observed at depth, and apparently related to physiological stresses on the surface populations. A third form was detected, but its appearance was not correlated with intact colonies. Substantial differences among the three areas studied were observed, suggesting that we observed colonies within a matrix of different growth conditions in the Ross Sea.