Under extreme ocean acidification conditions (pH 6.8), the egg production rates of copepods decreased significantly. For two species of sea urchins, fertilization rate of eggs decreased with increasing ocean acidification conditions. Furthermore, the size of urchin larvae decreased and deformities increased. These effects on marine life could lead to changes ...

When embryos of a common estuarine fish—the inland silverside—were exposed to high CO2 levels until one week after hatching, survival dropped by 74 percent and length by 18 percent. The eggs were more vulnerable to mortality than the post-hatch larvae. The CO2 conditions that were simulated in the study are ...

Adult copepods living in acidified water had lower egg production and hatching success. (Laboratory study)

For three ecologically important estuarine fish species—inland silverside, Atlantic silverside, and sheepshead minnow—the early life stages were more sensitive to low oxygen than they were to low pH. The combination of low oxygen and low pH had the biggest effect. The results suggest that ocean acidification and hypoxia may reduce ...

While ocean acidification may have some negative effects on the eggs of amphipods, exposure to low-salinity water is likely to affect the eggs more, based on ocean acidification trends projected for the next 300 years. (Laboratory study)

In ocean acidification conditions (pH 7.7) embryos of an intertidal barnacle developed more slowly. Survival of adult barnacles dropped by 22 percent, and the mineral structure of adult shells changed. (Laboratory study)

When Atlantic herring eggs were fertilized, incubated, and hatched in ocean acidification conditions, there was no effect on embryo development or hatch rate. There was also no clear relationship between ocean acidification and length, weight, yolk sac area, or otolith area of the newly hatched larvae. However, the larvae did ...

The accumulation of carbon dioxide in the atmosphere will lower the pH in ocean waters, a process termed ocean acidification (OA). Despite its potentially detrimental effects on calcifying organisms, experimental studies on the possible impacts on fish remain scarce. While adults will most likely remain relatively unaffected by changes in ...

Ocean acidification is a global, long-term problem whose ultimate solution requires carbon dioxide reduction at a scope and scale that will take decades to accomplish successfully. Until that is achieved, feasible and locally relevant adaptation and mitigation measures are needed. To help to prioritize societal responses to ocean acidification, we ...

Anthropogenic CO2 emissions are acidifying the world’s oceans. A growing body of evidence demonstrates that ocean acidification can impact survival, growth, development and physiology of marine invertebrates. Here, we tested the impact of long-term (up to 16 months) and trans-life-cycle (adult, embryo/larvae and juvenile) exposure to elevated pCO2 (1,200 μatm, compared to control 400 μatm) on ...