Captaincy General of the Philippines administrative units: Spanish rule in the Philippines ceased in 1898 after the war with the United States, which annexed most territories, although the administrative jurisdictions remained intact. Most of the remaining territories in the Pacific Ocean were sold to Germany during the German-Spanish Treaty of 1899. Captaincy General of the Philippines The Captaincy General of the Philippines ( ; ) was an administrative district of the Spanish Empire in Southeast Asia governed by a Governor-General. The Captaincy General encompassed the Spanish East Indies, which included among others the Philippine Islands and the Caroline Islands. It was founded in 1565 with
Ocean acidification in the Arctic Ocean is thought that because of this, additional stressors such as ocean acidification, will cause ocean acidification effects on marine organisms to appear first in the Arctic. There exists a significant variation in the sensitivity of marine organisms to increased ocean acidification. Calcifying organisms generally exhibit larger negative responses from ocean acidification than non‐calcifying organisms across numerous response variables, with the exception of crustaceans, which calcify but were not negatively affected. The acidification of the Arctic ocean will impact these marine calcifiers in several different ways. The uptake of CO₂ by seawater increases the concentration of hydrogen ions, which lowers pH