When the Gulf toadfish was exposed to levels of ocean acidification that are projected to occur by 2300, it lost greater amounts of bicarbonate ions through its intestine. (Laboratory study)

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 ...

Health of Atlantic halibut may be affected by moderate ocean acidification—by itself and combined with warmer temperatures.

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 ...

Shark feeding could be affected by changes in seawater chemistry projected for the end of this century. When smooth dogfish were placed for five days in ocean acidification conditions, their odor tracking behavior was impaired, and they attacked less. (Laboratory study)

In the gulf toadfish, respiratory gas transport and acid–base balance are affected by ocean acidification. While the full physiological impacts are not known, the changes could compromise several physiological systems. (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 ...

Kinematics of swimming behavior of larval Atlantic cod, aged 12 and 27 days post-hatch (dph) and cultured under three pCO2 conditions (control-370, medium-1800, and high-4200 μatm) from March to May 2010, were extracted from swim path recordings obtained using silhouette video photography. The swim paths were analyzed for swim duration, distance and speed, ...

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, caused by increasing atmospheric concentrations of CO2, is one of the most critical anthropogenicthreats to marine life. Changes in seawater carbonate chemistry have the potential to disturb calcification, acid–base regulation, blood circulation and respiration, as well as the nervous system of marine organisms, leading to long-term effects such ...