DOI: 10.1111/gcb.12678
论文题名: Odor tracking in sharks is reduced under future ocean acidification conditions
作者: Dixson D.L. ; Jennings A.R. ; Atema J. ; Munday P.L.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2015
卷: 21, 期: 4 起始页码: 1454
结束页码: 1462
语种: 英语
英文关键词: Mustelus canis
; Behavior
; Climate change
; Dogfish
; Ocean acidification
; Olfaction
Scopus关键词: acidification
; atmospheric pollution
; carbon dioxide
; chemical oceanography
; climate change
; ecosystem function
; future prospect
; odor
; olfaction
; tracking
; Chondrichthyes
; Elasmobranchii
; Mustelus canis
; Squalus acanthias
; Teleostei
; carbon dioxide
; sea water
; analysis
; animal
; chemistry
; climate change
; odor
; pH
; physiology
; shark
; smelling
; Animals
; Carbon Dioxide
; Climate Change
; Hydrogen-Ion Concentration
; Odors
; Olfactory Perception
; Seawater
; Sharks
英文摘要: Recent studies show that ocean acidification impairs sensory functions and alters the behavior of teleost fishes. If sharks and other elasmobranchs are similarly affected, this could have significant consequences for marine ecosystems globally. Here, we show that projected future CO2 levels impair odor tracking behavior of the smooth dogfish (Mustelus canis). Adult M. canis were held for 5 days in a current-day control (405 ± 26 μatm) and mid (741 ± 22 μatm) or high CO2 (1064 ± 17 μatm) treatments consistent with the projections for the year 2100 on a 'business as usual' scenario. Both control and mid CO2-treated individuals maintained normal odor tracking behavior, whereas high CO2-treated sharks significantly avoided the odor cues indicative of food. Control sharks spent >60% of their time in the water stream containing the food stimulus, but this value fell below 15% in high CO2-treated sharks. In addition, sharks treated under mid and high CO2 conditions reduced attack behavior compared to the control individuals. Our findings show that shark feeding could be affected by changes in seawater chemistry projected for the end of this century. Understanding the effects of ocean acidification on critical behaviors, such as prey tracking in large predators, can help determine the potential impacts of future ocean acidification on ecosystem function. © 2014 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61695
Appears in Collections: 影响、适应和脆弱性
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作者单位: ARC Centre of Excellence for Coral Reef Studies and School of Marine and Tropical Biology, James Cook University, Townsville, Qld, Australia; School of Biology, Georgia Institute of Technology, Atlanta, GA, United States; Department of Biology, Boston University, Boston, MA, United States; Woods Hole Oceanographic Institution, Woods Hole, MA, United States
Recommended Citation:
Dixson D.L.,Jennings A.R.,Atema J.,et al. Odor tracking in sharks is reduced under future ocean acidification conditions[J]. Global Change Biology,2015-01-01,21(4)