I am a Whale Shark researcher: Let's talk about the slaughterhouse in China.
My short bio: I am a founder of Wildbook for Whale Sharks (http://www.whaleshark.org) and its Information Architect. I help manage a global community of 90+ researchers and volunteers studying the world's largest and most mysterious fish: the whale shark! We are an excellent example of citizen science and high technology, combining NASA-inspired pattern recognition systems and global data collection from the dive community. The recent discovery of a whale shark slaughterhouse has potentially far-ranging impacts for the species.
You can support our research and conservation efforts through our IndieGogo.com campaign to bring wildlife into social media by exposing scientific data as easy-to-understand social media profiles:
Some context for the 600 whale sharks/year figure for this slaughterhouse.
Estimated annual size of the Ningaloo Reef whale shark population: approx. 200
Estimated size of a Seychelles population: approx. 400
But it is important to note that this fishery has not yet been linked to any known whale shark aggregation. Clearly the authors of the report suggest it, and it may be true, but we don't have evidence of such.
UPDATE 2: These are great questions being asked. Here is an incentive for more. If you ask a good questions, I will ask you to give me a nickname for a real shark under study. I will respond with a link so you can see the research data about that animal and your nickname. These are real sharks that may live 60-100 years bearing your nickname. So choose carefully!
Update 3: Video inside the slaughterhouse from the WildRisk group is here: http://vimeo.com/84925609
My Proof: http://www.whaleshark.org