The main aim of Dr Roshan Ramessur (Associate Professsor in Coastal Sciences) Research team's at the University of Mauritius is to investigate ocean acidification in Mauritius and East Africa taking into account the current state of seawater carbonate chemistry in terms of pH, salinity, temperature and alkalinity of the water in the selected areas as well as the possible impacts of climate change with some simulation exercises as an ongoing part of the ApHRICA Project initiated in July 2016 in Mauritius under The Ocean Foundation (Washington D.C), IAEA-OA-ICC, GOA-ON and NOAA Ocean Acidification Program. The main goals of the project are to investigate into the current state of ocean acidification in Mauritius using GOA-ON Kits including iSAMI (inexpensive submersible autonomous moored instrument) pH sensors (Sunburst Sensors, U.S) and to share data and SOPs through OAIE (Ocean Acidification Information Exchange). It is also important to assess the effects of climate change on the coastal systems in Mauritius as one major cause of climate change is the increasing rate of CO2 concentrations in the atmosphere. As shallow coastal waters absorb more CO2 from the atmosphere, an increase can be expected in dissolved CO2 and dissolved inorganic carbon (DIC), both of which can affect marine biota (coral reefs) and shellfisheries (lobsters, crustaceans, oysters etc). This will adversely affect the physical and biological characteristics of coastal systems, modifying their ecosystem structure and functioning. As a result, coastal economic activities may face losses of marine biodiversity, fisheries, and shorelines. Data will be shared through the Global OA Observing Network (GOA-ON) so that other nations in OA-Africa and internationally, can learn from our situation. This data can also be used to meet SDG 14.3 which mandates countries provide data related to OA conditions. One of the most important regional factors affecting ocean acidification in Mauritius include surface and groundwater runoff of nutrients and organic carbon from land, and local emissions of carbon dioxide, nitrogen oxides, and sulfur oxides, which are absorbed by seawater from the atmosphere. The relative importance of these local drivers also varies by location and our investigation would trigger ocean acidification studies along the outer coast of East Africa which can be strongly influenced by coastal upwelling while acidification in shallow estuaries, including those in East Africa (Kenya, Tanzania, Madagascar, Mozambique, South Africa, Mauritius and Seychelles) may be particularly influenced by inflows of fresh water (which is naturally lower in pH than seawater) carrying nutrients and organic carbon from human and natural sources.