DOI: 10.1111/gcb.12249
论文题名: Effects of ocean warming and acidification on survival, growth and skeletal development in the early benthic juvenile sea urchin (Heliocidaris erythrogramma)
作者: Wolfe K. ; Dworjanyn S.A. ; Byrne M.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期: 9 起始页码: 2698
结束页码: 2707
语种: 英语
英文关键词: Climate change
; Intertidal
; Juveniles
; Ocean acidification
; Ocean warming
; Sea urchin
Scopus关键词: acid
; acidification
; benthos
; biota
; calcification
; climate change
; growth rate
; intertidal environment
; juvenile
; pH
; skeleton
; survival
; animal
; article
; climate change
; growth, development and aging
; intertidal
; juveniles
; marine biology
; ocean acidification
; ocean warming
; sea
; sea urchin
; survival
; temperature
; climate change
; intertidal
; juveniles
; ocean acidification
; ocean warming
; sea urchin
; Acids
; Animals
; Climate Change
; Marine Biology
; Oceans and Seas
; Sea Urchins
; Survival Analysis
; Temperature
; Australia
; Echinoidea
; Heliocidaris
; Heliocidaris erythrogramma
英文摘要: Co-occurring ocean warming, acidification and reduced carbonate mineral saturation have significant impacts on marine biota, especially calcifying organisms. The effects of these stressors on development and calcification in newly metamorphosed juveniles (ca. 0.5 mm test diameter) of the intertidal sea urchin Heliocidaris erythrogramma, an ecologically important species in temperate Australia, were investigated in context with present and projected future conditions. Habitat temperature and pH/pCO2 were documented to place experiments in a biologically and ecologically relevant context. These parameters fluctuated diurnally up to 10 °C and 0.45 pH units. The juveniles were exposed to three temperature (21, 23 and 25 °C) and four pH (8.1, 7.8, 7.6 and 7.4) treatments in all combinations, representing ambient sea surface conditions (21 °C, pH 8.1; pCO2 397; ΩCa 4.7; ΩAr 3.1), near-future projected change (+2-4 °C, -0.3-0.5 pH units; pCO2 400-1820; ΩCa 5.0-1.6; ΩAr 3.3-1.1), and extreme conditions experienced at low tide (+4 °C, -0.3-0.7 pH units; pCO2 2850-2967; ΩCa 1.1-1.0; ΩAr 0.7-0.6). The lowest pH treatment (pH 7.4) was used to assess tolerance levels. Juvenile survival and test growth were resilient to current and near-future warming and acidification. Spine development, however, was negatively affected by near-future increased temperature (+2-4 °C) and extreme acidification (pH 7.4), with a complex interaction between stressors. Near-future warming was the more significant stressor. Spine tips were dissolved in the pH 7.4 treatments. Adaptation to fluctuating temperature-pH conditions in the intertidal may convey resilience to juvenile H. erythrogramma to changing ocean conditions, however, ocean warming and acidification may shift baseline intertidal temperature and pH/pCO2 to levels that exceed tolerance limits. © 2013 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62339
Appears in Collections: 影响、适应和脆弱性
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作者单位: School of Medical Sciences, The University of Sydney, Anderson-Stuart Building F13, Sydney, NSW 2006, Australia; National Marine Science Centre, The University of New England and Southern Cross University, P.O. Box J321, Coffs Harbour, NSW 2450, Australia; Schools of Medical and Biological Sciences, The University of Sydney, Anderson-Stuart Building F13, Sydney, NSW 2006, Australia
Recommended Citation:
Wolfe K.,Dworjanyn S.A.,Byrne M.. Effects of ocean warming and acidification on survival, growth and skeletal development in the early benthic juvenile sea urchin (Heliocidaris erythrogramma)[J]. Global Change Biology,2013-01-01,19(9)