DOI: 10.1111/gcb.12408
论文题名: Irukandji jellyfish polyps exhibit tolerance to interacting climate change stressors
作者: Klein S.G. ; Pitt K.A. ; Rathjen K.A. ; Seymour J.E.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2014
卷: 20, 期: 1 起始页码: 28
结束页码: 37
语种: 英语
英文关键词: Acidification
; Asexual reproduction
; Carybdeidae
; Cubozoa
; East Australian Current
; Ocean warming
; pCO2
; pH
; Statolith
Scopus关键词: acidification
; carbon dioxide
; climate change
; environmental stress
; global warming
; jellyfish
; migration
; pH
; polyp
; population dynamics
; statolith
; temperature effect
; tolerance
; winter
; Australia
; East Australian Current
; Pacific Ocean
; Queensland
; Carybdeidae
; Cubozoa
; Hydroida
; Scyphozoa
; acidification
; animal
; article
; asexual reproduction
; Australia
; carbon dioxide tension
; Carybdeidae
; climate change
; Cubozoa
; East Australian Current
; ocean warming
; otolith
; pH
; physiology
; population dynamics
; reproduction
; temperature
; acidification
; asexual reproduction
; Carybdeidae
; Cubozoa
; East Australian Current
; ocean warming
; pCO2
; pH
; statolith
; Animals
; Climate Change
; Cubozoa
; Hydrogen-Ion Concentration
; Population Dynamics
; Queensland
; Reproduction
; Temperature
英文摘要: Increasing ocean temperatures and strengthening boundary currents have caused the poleward migration of many marine species. Cubozoan jellyfish known to cause Irukandji syndrome have historically been confined to tropical waters but may be expanding into subtropical regions. Here, we examine the interactive effects of warming and acidification on the population dynamics of polyps of an Irukandji jellyfish, Alatina nr mordens, and the formation of statoliths in newly metamorphosed medusae, to determine if this jellyfish could tolerate future conditions predicted for southeast Queensland (SEQ), Australia. Two experiments, examining the orthogonal factors of temperature and pH, were undertaken. Experiment 1 mimicked the current, ca. 2050 and ca. 2100 summer temperature and pH conditions predicted for SEQ using A1F1 scenarios (temperature: 25, 27, 29 °C; pH: 7.9, 7.8, 7.6) and Experiment 2 mimicked current and future winter conditions (18 and 22 °C, pH 7.9, 7.8, 7.6). All polyps in Experiment 1 survived and budded. Fewer polyps budded in the lower pH treatments; however, patterns varied slightly among temperature treatments. Statoliths at pH 7.6 were 24% narrower than those at pH 7.8 and 7.9. Most polyps survived the winter conditions mimicked by Experiment 2 but only polyps in the 22 °C, pH 7.9 treatment increased significantly. The current absence of A. nr mordens medusae in SEQ, despite the polyps' ability to tolerate the current temperature and pH conditions, suggests that ecological, rather than abiotic factors currently limit their distribution. Observations that budding was lower under low pH treatments suggest that rates of asexual reproduction will likely be much slower in the future. We consider that A. nr mordens polyps are likely to tolerate future conditions but are unlikely to thrive in the long term. However, if polyps can overcome potential ecological boundaries and acidification proceeds slowly A. nr mordens could expand polewards in the short term. © 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/62195
Appears in Collections: 影响、适应和脆弱性
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作者单位: Australian Rivers Institute - Coasts and Estuaries, Griffith School of Environment, Griffith University, Gold Coast Campus, Southport, 4222, Australia; Woods Hole Oceanographic Institution, 266 Woods Hole Rd, Woods Hole, 02543-1050, United States; James Cook University, PO BOX 6811, Cairns, QLD 4870, Australia; Queensland Emergency Medical Research Foundation, Suite 5B, The Terrace Suites, 19 Lang Parade, Milton, Brisbane, QLD 4064, Australia
Recommended Citation:
Klein S.G.,Pitt K.A.,Rathjen K.A.,et al. Irukandji jellyfish polyps exhibit tolerance to interacting climate change stressors[J]. Global Change Biology,2014-01-01,20(1)