What is ocean acidification?

Ocean acidification is caused by the chemical reaction of CO2 dissolving into seawater, where it immediately dissociates into carbonic acid and then into bicarbonate and hydrogen ions which decreases the pH value as shown below.
CO2 + H2O <=> H2CO3 (carbonic acid) <=> HCO3- (bicarbonate ion) + H+
The dwindling level of carbonate ions means that the saturation state of calcium carbonate in the ocean also decreases as shown below.
HCO3- (bicarbonate ion) <=> CO32- (carbonate) + H+
The calcification rate of some species such as echinoderms becomes longer due to the decreasing availability of essential ions which can leave species exposed to predators, and can also negatively impact the fertilisation of species, ultimately limiting population growth


Answered by Lulu S. Biology tutor

1173 Views

See similar Biology University tutors

Related Biology University answers

All answers ▸

How is a resting membrane potential of a neuron maintained?


I have created a structured question with 3 sections, and I provided the sample answers - See below both Q&A


What is the Endosymbiosis Theory?


Explain the pathway of MPS following resistance exercise?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences