The value of marine recreational activities was calculated by Cisneros-Montemayor & Sumaila (2010). A database of reported expenditure on marine recreational activities was compiled for 144 coastal countries, with the authors estimating that in 2003, nearly 60 million recreational anglers around the world generated a total of about US$40 billion in expenditure, supporting over 950 000 jobs. Hoyt (2001) estimated that over 13 million people worldwide participated in whale watching in 2003, with expenditure reaching around US$1.6 billion in that year (Cisneros-Montemayor & Sumaila, 2010). It is also estimated that 18 000 jobs worldwide are supported by this industry each year.
From collection: Green Economy in a Blue World - Full Report