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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50867

Title: Effects of sedimentation on the gorgonian Subergorgia suberosa
Authors: Li-Chun Tseng
Hans-Uwe Dahms
Nan-Jung Hsu
Jiang-Shiou Hwang
Contributors: 國立臺灣海洋大學:生命科學暨生物科技學系
Date: 2011-03
Issue Date: 2018-10-29T02:47:11Z
Publisher: Mar Biol
Abstract: Abstract: Effects of oceanic and terrestrial sediment sus-pensions on the behavioral traits activity, colony expansion,and mucus formation of the gorgonian octocoral Suber-gorgia suberosa (Pallas, 1766) were studied in the labora-tory. Increased sediment concentration significantlychanged the logits of activity indices (as colony expansion)and was correlated with decreased activity. For both sourcesof sediments, the activity index decreased as the concen-tration of sediment increased. The level of decrease wasmore significance for terrestrial sediments. The activityindex showed no clear time pattern for the control group,but a decrease over time occurred in both sediment treat-ment groups. Activity change was linearly correlated withexposure time and concentration of terrestrial and oceansediments. The activity indices of polyps were negativelycorrelated with the formation of mucus sheets (correla-tion =-0.536, p=0.048). For both sources of sediments,the frequency of mucus sheet formation (MSF) increasedwith sediment concentration. Increases in terrestrialsediment loads resulted in more striking effects. Theprobability for MSF under different sediment groups atdifferent concentrations over time was modeled by regres-sions. Frequency of polyp activity is suggested as a suitablebiomarker to monitor the effects of sedimentation stress.
Relation: 158 pp.1301-1310
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50867
Appears in Collections:[生命科學暨生物科技學系] 期刊論文

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