Jenn there is no doubt that this is a skewed data set. This can be a problem when a research group is not completely atuned to the industry it studies.
Here is a paper from the Thesis.
http://www.spc.int/coastfish/news/LRF/1 ... castro.pdf
Presentation of the data at MO04 in Hawaii
http://agsurveys.org/hobby/MO%202004.htm

The trade in ornamental reef fish has been the subject of efforts by the Marine Aquarium Council (MAC) to implement a certification and labelling scheme for a number of years, as regularly reported in this bulletin. In a study independent of MAC, Liliana Alencastro et al. examine the degree to which an eco-label on ornamental fish might be important to hobbyists — that is, whether hobbyists are willing to pay a premium for such a label. The results give an indication of how well a certification program such as the MAC scheme is likely to work, or alternatively, an indication of how much outreach to consumers will be needed to make it work.
Here is a paper from the Thesis.
http://www.spc.int/coastfish/news/LRF/1 ... castro.pdf
Presentation of the data at MO04 in Hawaii
http://agsurveys.org/hobby/MO%202004.htm