期刊
MARINE POLLUTION BULLETIN
卷 58, 期 8, 页码 1187-1191出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2009.03.017
关键词
Ocean acidification; Hypercapnia; Embryonic development; Hyposalinity
资金
- NERC [mba010002] Funding Source: UKRI
- Natural Environment Research Council [mba010002] Funding Source: researchfish
We investigated the effect of CO2 acidified sea water (S = 35, 22 and 101(PSU)) on embryonic development of the intertidal amphipod Echinogammarus marinus (Leach). Low pH, but not low salinity (22(PSU)), resulted in a more protracted embryonic development in situ although the effect was only evident at low salinity. However reduced salinity, not pH, exerted a strong significant effect, on numbers and calcium content of hatchlings. Females exposed to low salinity (10(PSU)) did not carry eggs through to hatching. There was no significant difference in the number of viable hatchlings between females cultured in 22 and 35(PSU) but the exoskeleton of the juveniles at 22(PSU) contained significantly less calcium. Ocean acidification may affect aspects of E. marinus development but exposure to realistic low salinities appear, in the short term, to be more important in impacting development than exposure to CO2 acidified sea water at levels predicted for 300 years time. (C) 2009 Elsevier Ltd. All rights reserved.
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