DOI: 10.1111/gcb.13452
论文题名: Ocean acidification has little effect on developmental thermal windows of echinoderms from Antarctica to the tropics
作者: Karelitz S.E. ; Uthicke S. ; Foo S.A. ; Barker M.F. ; Byrne M. ; Pecorino D. ; Lamare M.D.
刊名: Global Change Biology
出版年: 2017
卷: 23, 期: 2 起始页码: 657
结束页码: 672
语种: 英语
英文关键词: climate change
; echinoderm
; echinoderm development
; ocean acidification
; ocean warming
; thermal window
Scopus关键词: Echinodermata
; Fellaster zelandiae
; Invertebrata
; Odontaster validus
; Patiriella regularis
; Sterechinus neumayeri
英文摘要: As the ocean warms, thermal tolerance of developmental stages may be a key driver of changes in the geographical distributions and abundance of marine invertebrates. Additional stressors such as ocean acidification may influence developmental thermal windows and are therefore important considerations for predicting distributions of species under climate change scenarios. The effects of reduced seawater pH on the thermal windows of fertilization, embryology and larval morphology were examined using five echinoderm species: two polar (Sterechinus neumayeri and Odontaster validus), two temperate (Fellaster zelandiae and Patiriella regularis) and one tropical (Arachnoides placenta). Responses were examined across 12–13 temperatures ranging from −1.1 °C to 5.7 °C (S. neumayeri), −0.5 °C to 10.7 °C (O. validus), 5.8 °C to 27 °C (F. zelandiae), 6.0 °C to 27.1 °C (P. regularis) and 13.9 °C to 34.8 °C (A. placenta) under present-day and near-future (2100+) ocean acidification conditions (-0.3 pH units) and for three important early developmental stages 1) fertilization, 2) embryo (prehatching) and 3) larval development. Thermal windows for fertilization were broad and were not influenced by a pH decrease. Embryological development was less thermotolerant. For O. validus, P. regularis and A. placenta, low pH reduced normal development, albeit with no effect on thermal windows. Larval development in all five species was affected by both temperature and pH; however, thermal tolerance was not reduced by pH. Results of this study suggest that in terms of fertilization and development, temperature will remain as the most important factor influencing species' latitudinal distributions as the ocean continues to warm and decrease in pH, and that there is little evidence of a synergistic effect of temperature and ocean acidification on the thermal control of species ranges. © 2016 John Wiley & Sons Ltd 资助项目: Karelitz, S.E.
; Department of Marine Science, University of Otago, 310 Castle Street, New Zealand
; 电子邮件: karsa692@otago.ac.nz
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61089
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Marine Science, University of Otago, 310 Castle Street, Dunedin, New Zealand; Australian Institute of Marine Science, Townsville, Qld, Australia; School of Medical Sciences, University of Sydney, Sydney, NSW, Australia; Schools of Medical and Biological Sciences, University of Sydney, Sydney, NSW, Australia; Department for Earth, Environment and Life Sciences (DISTAV), University of Genoa, Genoa, Italy
Recommended Citation:
Karelitz S.E.,Uthicke S.,Foo S.A.,et al. Ocean acidification has little effect on developmental thermal windows of echinoderms from Antarctica to the tropics[J]. Global Change Biology,2017-01-01,23(2)