Dutch colonisation of the Guianas control of the three colonies (Demerara, Berbice, and Essequibo) west of the Courantyne River. These three colonies became British Guiana. After 1815, there were five Guianas, referred to by their dominant languages: Spanish Guayana (Venezuela), British Guiana, Dutch Guiana, French Guiana, and Portuguese Guiana (Brazil). The colony that remained was part of the Kingdom of the Netherlands until 1975, when it became independent as the Republic of Suriname. Dutch Guiana covered the majority of the Guiana Shield, with its borders ranging from the Orinoco Delta in the northwest, the eastern banks of the Caroní River in the southwest, to the
Guiana dolphin (CMS). It is listed on Appendix II as it has an unfavourable conservation status or would benefit significantly from international co-operation organised by tailored agreements. As with all coastal cetaceans, the Guiana dolphin suffers from negative interactions with humans. Entanglement in gill nets, seine nets, and shrimp traps is responsible for the death of many animals each year. There is very limited gene flow between concentrations of this dolphin, and large stretches of coast contain no animals at all, so recovery from depletion of a local population may take time. Guiana dolphin The Guiana dolphin ("Sotalia guianensis"), also known as