Ocean acidification and warming reduce juvenile survival of the fluted giant clam, Tridacna squamosa

被引:2
|
作者
Watson, Sue-Ann [1 ]
Southgate, Paul C. [2 ]
Miller, Gabrielle M. [1 ]
Moorhead, Jonathan A. [2 ]
Knauer, Jens [3 ]
机构
[1] James Cook Univ, ARC Ctr Excellence Coral Reef Studies, Townsville, Qld 4811, Australia
[2] James Cook Univ, Sch Marine & Trop Biol, Ctr Sustainable Trop Fisheries & Aquaculture, Townsville, Qld 4811, Australia
[3] Darwin Aquaculture Ctr, Dept Resources, Darwin, NT 0801, Australia
关键词
climate change; carbon dioxide; high-CO2; temperature; ecology; Cardiidae; Tridacninae; mollusc; bivalve; Bivalvia; OYSTER SACCOSTREA-GLOMERATA; CO2; GROWTH; CARBON; FERTILIZATION; TEMPERATURE; PH;
D O I
暂无
中图分类号
Q17 [水生生物学];
学科分类号
071004 ;
摘要
Anthropogenic carbon dioxide (CO2) emissions are causing ocean acidification and ocean warming; however, the synergistic effects of these stressors on giant clams are completely unknown. Juveniles of the fluted giant clam, Tridacna squamosa Lamarck, 1819, were exposed to present-day control seawater (416 mu atm pCO(2)) and seawater treated with CO2 to simulate ocean conditions predicted for the next 50-100 years (622 mu atm pCO(2) and 1019 mu atm pCO(2)). These CO2 treatments were cross-factored with seawater temperatures of similar to 28.5 degrees C, similar to 30.0 degrees C and similar to 31.5 degrees C. The majority of mortality occurred between 40 and 60 days. Survival of juveniles decreased with increasing pCO(2) and decreased with increasing seawater temperature. The combination of the highest pCO(2) and both the moderate and highest seawater temperatures resulted in the lowest survival of <20 % indicating survival of T. squamosa could be reduced considerably at ocean conditions predicted to occur around the end of this century.
引用
收藏
页码:177 / 180
页数:4
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