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Acclimation of bloom-forming and perennial seaweeds to elevated pCO2 conserved across levels of environmental complexity.
Glob Chang Biol. 2017 11; 23(11):4828-4839.GC

Abstract

Macroalgae contribute approximately 15% of the primary productivity in coastal marine ecosystems, fix up to 27.4 Tg of carbon per year, and provide important structural components for life in coastal waters. Despite this ecological and commercial importance, direct measurements and comparisons of the short-term responses to elevated pCO2 in seaweeds with different life-history strategies are scarce. Here, we cultured several seaweed species (bloom forming/nonbloom forming/perennial/annual) in the laboratory, in tanks in an indoor mesocosm facility, and in coastal mesocosms under pCO2 levels ranging from 400 to 2,000 μatm. We find that, across all scales of the experimental setup, ephemeral species of the genus Ulva increase their photosynthesis and growth rates in response to elevated pCO2 the most, whereas longer-lived perennial species show a smaller increase or a decrease. These differences in short-term growth and photosynthesis rates are likely to give bloom-forming green seaweeds a competitive advantage in mixed communities, and our results thus suggest that coastal seaweed assemblages in eutrophic waters may undergo an initial shift toward communities dominated by bloom-forming, short-lived seaweeds.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China. Function Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.

Biosciences, Environment and Sustainability Institute, University of Exeter, Penryn, UK.

Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.

First Institute of Oceanography, State Oceanic Administration, Qingdao, China. Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.

Department of Physics and Physical Oceanography, Memorial University of Newfoundland, St. John's, NL, Canada.

Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.

Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.

Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.

Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.

Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.

Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China. Function Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.

MeSH

AcclimatizationCarbon DioxideEutrophicationLife History TraitsPhotosynthesisSeaweed

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28346724

Citation

Xu, Dong, et al. "Acclimation of Bloom-forming and Perennial Seaweeds to Elevated pCO2 Conserved Across Levels of Environmental Complexity." Global Change Biology, vol. 23, no. 11, 2017, pp. 4828-4839.

Xu D, Schaum CE, Lin F, et al. Acclimation of bloom-forming and perennial seaweeds to elevated pCO2 conserved across levels of environmental complexity. Glob Chang Biol. 2017;23(11):4828-4839.

Xu, D., Schaum, C. E., Lin, F., Sun, K., Munroe, J. R., Zhang, X. W., Fan, X., Teng, L. H., Wang, Y. T., Zhuang, Z. M., & Ye, N. (2017). Acclimation of bloom-forming and perennial seaweeds to elevated pCO2 conserved across levels of environmental complexity. Global Change Biology, 23(11), 4828-4839. https://doi.org/10.1111/gcb.13701

Xu D, et al. Acclimation of Bloom-forming and Perennial Seaweeds to Elevated pCO2 Conserved Across Levels of Environmental Complexity. Glob Chang Biol. 2017;23(11):4828-4839. PubMed PMID: 28346724.

* Article titles in AMA citation format should be in sentence-case

TY - JOUR T1 - Acclimation of bloom-forming and perennial seaweeds to elevated pCO2 conserved across levels of environmental complexity. AU - Xu,Dong, AU - Schaum,Charlotte-Elisa, AU - Lin,Fan, AU - Sun,Ke, AU - Munroe,James R, AU - Zhang,Xiao W, AU - Fan,Xiao, AU - Teng,Lin H, AU - Wang,Yi T, AU - Zhuang,Zhi M, AU - Ye,Naihao, Y1 - 2017/04/25/ PY - 2016/11/15/received PY - 2017/03/16/revised PY - 2017/03/17/accepted PY - 2017/3/28/pubmed PY - 2018/9/5/medline PY - 2017/3/28/entrez KW - CO 2 KW - acclimation KW - environmental complexity KW - growth KW - photosynthesis KW - respiration KW - seaweed SP - 4828 EP - 4839 JF - Global change biology JO - Glob Chang Biol VL - 23 IS - 11 N2 - Macroalgae contribute approximately 15% of the primary productivity in coastal marine ecosystems, fix up to 27.4 Tg of carbon per year, and provide important structural components for life in coastal waters. Despite this ecological and commercial importance, direct measurements and comparisons of the short-term responses to elevated pCO2 in seaweeds with different life-history strategies are scarce. Here, we cultured several seaweed species (bloom forming/nonbloom forming/perennial/annual) in the laboratory, in tanks in an indoor mesocosm facility, and in coastal mesocosms under pCO2 levels ranging from 400 to 2,000 μatm. We find that, across all scales of the experimental setup, ephemeral species of the genus Ulva increase their photosynthesis and growth rates in response to elevated pCO2 the most, whereas longer-lived perennial species show a smaller increase or a decrease. These differences in short-term growth and photosynthesis rates are likely to give bloom-forming green seaweeds a competitive advantage in mixed communities, and our results thus suggest that coastal seaweed assemblages in eutrophic waters may undergo an initial shift toward communities dominated by bloom-forming, short-lived seaweeds. SN - 1365-2486 UR - https://www.unboundmedicine.com/medline/citation/28346724/Acclimation_of_bloom_forming_and_perennial_seaweeds_to_elevated_pCO2_conserved_across_levels_of_environmental_complexity_ L2 - https://doi.org/10.1111/gcb.13701 DB - PRIME DP - Unbound Medicine ER -