Document Detail

Acute toxicity of temporally varying seawater CO2 conditions on juveniles of Japanese sillago (Sillago japonica).
MedLine Citation:
PMID:  16324721     Owner:  NLM     Status:  MEDLINE    
CO(2) ocean storage by which liquefied CO(2) is injected into the deep-sea to mitigate the climate change would increase the CO(2) concentrations of the surrounding seawater. The biological impacts of such dynamic CO(2) environments are, however, unknown. We examined the acute toxicity of temporally changing seawater CO(2) concentrations on juveniles of Sillago japonica. Step-wise increases in ambient CO(2) to fCO(2) (fractional CO(2) concentration of the gas mixture bubbled into seawater) levels of 7% and 9% resulted in mortalities of 0.15 and 0.40-0.67 after 18 h, respectively. In contrast, one-step increases to these CO(2) levels killed all fish within 15 min. Further, a sudden drop of fCO(2) from 9-10% CO(2) to normocapnia (0.038%) killed all the surviving fish within a few minutes. These results demonstrate that impacts of ocean CO(2) storage need to be examined under conditions mimicking the dynamic changes in CO(2) levels expected to occur by the CO(2) injection procedure.
Takashi Kikkawa; Toru Sato; Jun Kita; Atsushi Ishimatsu
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2005-12-01
Journal Detail:
Title:  Marine pollution bulletin     Volume:  52     ISSN:  0025-326X     ISO Abbreviation:  Mar. Pollut. Bull.     Publication Date:  2006 Jun 
Date Detail:
Created Date:  2006-06-14     Completed Date:  2006-09-05     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0260231     Medline TA:  Mar Pollut Bull     Country:  England    
Other Details:
Languages:  eng     Pagination:  621-5     Citation Subset:  IM    
Central Laboratory, Marine Ecology Research Institute, 300 Iwawada, Onjuku, Chiba 299-5105, Japan.
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MeSH Terms
Animals, Newborn
Carbon Dioxide / toxicity*
Dose-Response Relationship, Drug
Environmental Exposure
Models, Biological
Refuse Disposal
Seawater / chemistry*
Time Factors
Toxicity Tests
Reg. No./Substance:
124-38-9/Carbon Dioxide

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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